PDS_VERSION_ID = PDS3 LABEL_REVISION_NOTE = "2004-09-14 RS: stanzel Original; 2004-10-11 RS: carone updated; 2004-10-15 RS: carone updated; 2004-11-08 RS: carone updated; 2005-01-11 RS: carone updated; 2005-01-20 RS: carone updated; 2005-04-18 RS: carone updated; 2005-12-13 RS: carone updated" RECORD_TYPE = STREAM OBJECT = DATA_SET DATA_SET_ID = "MEX-M-MRS-1/2/3-PRM-0607-V1.0" OBJECT = DATA_SET_INFORMATION DATA_SET_NAME = "MARS EXPRESS MARS MRS PRIME MISSION V1.0" DATA_SET_COLLECTION_MEMBER_FLG = "N" DATA_OBJECT_TYPE = TABLE START_TIME = 2005-11-21T14:44:51.000 STOP_TIME = 2005-11-21T17:48:03.000 DATA_SET_RELEASE_DATE = 2007-02-23 PRODUCER_FULL_NAME = "MARTIN PAETZOLD" DETAILED_CATALOG_FLAG = "N" ARCHIVE_STATUS = "ARCHIVED" ABSTRACT_DESC = "This is a Global Gravity measurement covering the time 2005-11-21T14:44:51.000 to 2005-11-21T17:48:03.000." CITATION_DESC = "M. Paetzold, Mars Express MaRS Level 1, 2 and 3 data, Experimental Data acquired from Prime Mission (PRM), Version V1.0, MEXMRS_0607_2005_325_V1.0, ESA Planetary Science Archive, 2005." DATA_SET_TERSE_DESC = "This is a Mars Express Radio Science data set, collected during the prime mission phase 2004-07-01 to 2005-11-30. It is a Global Gravity measurement and covers the time 2005-11-21T14:44:51.000 to 2005-11-21T17:48:03.000." DATA_SET_DESC = " Data Set Overview ================ The Mars Express (MEX) Radio Science (MaRS) Data Archive is a time-ordered collection of raw and partially processed data collected during the MEX Mission to Mars. For more information on the investigations proposed see the MaRS User Manual [MARSUSERMANUAL2004] in the MaRS DOCUMENT/MRS_DOC folder. This is a Global Gravity measurement covering the time 2005-11-21T14:44:51.000 to 2005-11-21T17:48:03.000. This data set was collected during the MEX Mission Prime Mission Phase (PRM) 2004-2005. This is a measurement of the Global Gravity field of Mars. Global gravity measurements were typically done when Mars Express was around Apocenter. There were three types of scientific measurements conducted during PRM: Occultation, Bistatic Radar and Gravity where one has to distinguish between global gravity measurements which were conducted around apocenter and target gravity measurements which were conducted around pericenter over interesting geophysical structures. For more information see INST.CAT or the MaRS User Manual [MARSUSERMANUAL2004]. For all measurements if not indicated otherwise Transponder 1 onboard the s/c was used. Transponder 2 is designed to be a backup. Mission Phase Definition ======================== It should be noted that the Mars Express (MEX) Radio Science (MaRS) group uses mission phases which deviate from the ones defined in the MISSION.CAT files given by ESA in order to keep the keywords and abbreviations consistent for Mars Express, Venus Express and Rosetta. Those mission phase abbreviations are also used in the data description field of the dataset_id. MaRS mission name | abbreviation | time span ================================================================ Near Earth Verification | NEV | 2003-06-02 - 2003-07-31 ---------------------------------------------------------------- Cruise 1 | CR1 | 2003-08-01 - 2003-12-25 ---------------------------------------------------------------- Mission Comissioning | MCO | 2003-12-26 - 2004-06-30 ---------------------------------------------------------------- Prime Mission | PRM | 2004-07-01 - 2005-11-30 ---------------------------------------------------------------- Extended Mission | ENT | TBD ---------------------------------------------------------------- Data files ---------- Data files are: The tracking files from Deep Space Network (DSN) and from the Intermediate Frequency Modulation System (IFMS) used by the ESA ground station New Norcia. Level 1a to level 2 data are archived. The predicted and reconstructed Doppler and range files Geometry files All Level 1a binary data files will have the file name extension eee = .DAT IFMS Level 1a ASCII data files will have the file name extension eee = .RAW Level 1b and 2 tabulated ASCII data files will have the file name extension eee = .TAB Binary data files will have the file name extension .DAT Data levels ---------- It should be noted that these data levels which are also used in the file names and data directories are PSA data levels whereas in the PDS label files CODMAC levels are used. PSA data level | CODMAC level ----------------------------- 1a | 1 1b | 2 2 | 3 Data Set Identifier ------------------- The 'DATA_SET_ID' is a unique alphanumeric identifier for the data sets. It looks something like: XXX-Y-ZZZ-U-VVV-NNNN-WWW Acronym | Description | Example -------------------------------------------------------- XXX | Instrument Host ID | MEX -------------------------------------------------------- Y | Target ID | M (for Mars) or X for | | other like for example | | for sun during solar | | conjunction measurements -------------------------------------------------------- ZZZ | Instrument ID | MRS -------------------------------------------------------- U | Data level (here | 1/2/3 (Data set | CODMAC levels are used) | contains raw, edited | | and calibrated data) --------------------------------------------------------- VVV | MaRS mission phase |MCO | (deviate from the |(for values see above) | mission phases) | --------------------------------------------------------- NNNN | 4 digit sequence number | 0123 | which is identical to | | the number in Volume_id | --------------------------------------------------------- WWW | Version number | V1.0 MaRS data were originally archived as volumes rather than data sets. However, ESA PSA does not uses volume but data set. To avoid confusion it was specified that one MaRS data volume is equal one data set. Thus the data set was also assigned a 4 digit sequence number which is identical to the one used in the volume_id. If the data_set_id is known it is automatically specified on which volume the data set is found. VOLUME_ID --------- The VOLUME_ID is a unique alphanumeric identifier for volume. It looks something like: XXXXXX-ZZZZ Acronym | Description | Example -------------------------------------------------------- XXXXXX | Mission and Instrument ID | MEXMRS -------------------------------------------------------- ZZZZ | 4 digit sequence number | 0123 Descriptive files ----------------- Descriptive files contain information in order to support the processing and analysis of data files. The following file types are defined as descriptive files with extension eee = .LBL PDS label files .CFG IFMS configuration .AUX Anxiliary files (event files, attitude files, ESOC orbit files, products, SPICE files) .TXT Information (text) files File naming convention ====================== All incoming data files will be renamed and all processed data files will be named after the following file naming convention format. The original file name of the incoming tracking data files will be stored in the according label file as source_product_id. The new PDS compliant file name will be the following: rggttttlll_sss_yydddhhmm_qq.eee Acronym | Description | Examples ============================================================= r | space craft name abbreviation | M | R = Rosetta | | M = Mars Express | | V = Venus Express | ------------------------------------------------------------- gg | Ground station ID: | 43 | | | 00: valid for all ground stations; | | various ground staions or independent | | of ground station or not feasible to | | appoint to a specific ground station or | | complex | | | | DSN complex Canberra: | | --------------------- | | 34 = 34 m BWG (beam waveguide) | | 40 = complex | | 43 = 70 m | | 45 = 34 m HEF (high efficiency) | | | | ESA Cebreros antenna: | | --------------------- | | TBD = 35 m | | | | DSN complex Goldstone: | | ---------------------- | | 10 = complex | | 14 = 70 m | | 15 = 34 m HEF | | 24 = 34 m BWG | | 25 = 34 m BWG | | 26 = 34 m BWG | | 27 = 34 m HSBWG | | | | ESA Kourou antenna: | | ------------------- | | TBD = 15 m | | | | DSN complex Madrid: | | ------------------- | | 54 = 34 m BWG | | 55 = 34 m BWG | | 63 = 70 m | | 65 = 34 m HEF | | 60 = complex | | | | ESA New Norcia antenna: | | ----------------------- | | 32 = 35 m | ------------------------------------------------------------- tttt | data source identifier: | TNF0 | | | Level 1a and 1b: | | ---------------- | | ODF0 = ODF closed loop | | TNF0 = TNF closed loop (L1a) | | T000-T017 = TNF closed loop (L1b) | | ICL1 = IFMS 1 closed loop | | ICL2 = IFMS 2 closed loop | | ICL3 = IFMS RS closed loop | | IOL3 = IFMS RS open loop | | R1Az = RSR block 1A open loop | | R1Bz = RSR block 1B open loop | | R2Az = RSR block 2A open loop | | R2Bz = RSR block 2B open loop | | R3Az = RSR block 3A open loop | | R3Bz = RSR block 3B open loop | | z=1...4 subchannel number | | ESOC = ancillary files from ESOC DDS | | DSN0 = ancillary files from DSN | | SUE0= ancillary and information files | | coming from Stanford University | | center for radar astronomy | | | | Level 2: | | ------- | | UNBW = predicted and reconstructed | | Doppler and range files | | ICL1 = IFMS 1 closed loop | | ICL2 = IFMS 2 closed-loop | | ICL3 = IFMS RS closed-loop | | ODF0 = DSN ODF closed loop file | | T000-T017 = TNF closed loop file | | RSR0 = DSN RSR open loop file | | RSRC = DSN RSR open loop file containing | | data with right circular | | polarization (only solar | | conjunction measurement) | | RSRL = DSN RSR open loop file containing | | data with left circular | | polarization (only solar | | conjunction measurement) | | NAIF = JPL or ESTEC SPICE Kernels | | SUE0 = ancillary, information and | | calibration files coming from | | Stanford University center for | | radar astronomy | | GEOM = geometry file | | | --------|------------------------------------------|-------- lll | Data archiving level | L1A | L1A = Level 1A | | L1B = Level 1B | | L02 = Level 2 | | L03 = Level 3 | --------|------------------------------------------|-------- sss | data type | | | | IFMS data files level 1A & 1B: | | ------------------------- | | D1X uncalibrated Doppler 1 X-Band | | D1S uncalibrated Doppler 1 S-Band | | D2X uncalibrated Doppler 2 x-Band | | D2S uncalibrated Doppler 2 S-Band | | C1X Doppler 1 X-Band equip. calibration | | C1S Doppler 1 S-Band equip. calibration | | C2X Doppler 2 X-Band equip. calibration | | C2S Doppler 2 S-Band equip. calibration | | RGX uncalibrated X-Band range | | RGS uncalibrated S-Band range | | MET meteo file | | AG1 AGC 1 files | | AG2 AGC 2 files | | RCX X-Band range equip. calibration | | RCS S-Band range equip. calibration | | | | DSN data files level 1A: | | ------------------------- | | ODF original orbit files (closed loop) | | RSR radio science receiver open-loop file| | TNF file (closed loop) | | | | ESOC ancillary data level 1A: | | ----------------------------- | | ATR attitude file, reconstrucetd | | EVT orbit event file | | OHC orbit file, heliocentric cruise | | OMO orbit file, marscentric, operational | | | | DSN Calibration files level 1A: | | ------------------------------- | | TRO DSN tropospheric calibration model | | MET DSN meteorological file | | ION DSN ionospheric calibration model | | BCL SUE Bistatic radar temperature | | calibration | | | | DSN ancillary data level 1A: | | ----------------------------- | | DKF DSN Keyword File | | MON DSN monitor data | | NMC DSN Network Monitor and Control file | | SOE DSN Sequence of Events | | EOP DSN earth orientation parameter file | | ENB SUE Experimenter Notebook | | MFT SUE Manifest files | | LIT DSN Light time file | | HEA DSN Data collection list | | OPT DSN Orbit and timing geometry file | | | | DSN Browse Plots level 1A: | | -------------------------- | | BRO bistatic radar 4-panel plots (browse)| | | | IFMS data files level 1b: | | ------------------------- | | D1X uncalibrated Doppler 1 X-band | | D1S uncalibrated Doppler 1 S-band | | D2X uncalibrated Doppler 2 X-band | | D2S uncalibrated Doppler 2 S-band | | C1X Doppler 1 X-band equip. calibration | | C1S Doppler 1 S-band equip. calibration | | C2X Doppler 2 X-band equip. calibration | | C2S Doppler 2 S-band equip. calibration | | RGX uncalibrated X-band range | | RGS uncalibrated S-band range | | MET meteo | | AG1 AGC 1 | | AG2 AGC 2 | | RCX X-band range equip. calibration | | RCS S-band range equip. calibration | | | | DSN ODF data files level 1b: | | ----------------------------- | | DPS S-band Doppler | | DPX X-band Doppler | | RGS uncalibrated S-Band ranging file | | RGX uncalibrated X-Band ranging file | | RMP uplink frequency ramp rate file | | | | DSN calibration data level 1B: | | ----------------------------- | | MET meteorlogical file | | | | IFMS data level 2: | | ----------------- | | D1X uncalibrated Doppler 1 X-Band | | D1S uncalibrated Doppler 1 S-Band | | D2X uncalibrated Doppler 2 x-Band | | D2S uncalibrated Doppler 2 S-Band | | RGX uncalibrated X-Band range | | RGS uncalibrated S-Band range | | RCX X-Band range equip. calibration | | RCS S-Band range equip. calibration | | | | IFMS Browse plots level 2 | | ------------------------- | | B1X Quick look plots of calibrated | | Doppler 1 X-band | | B1S Quick look plots of calibrated | | Doppler 1 S-band | | B2X Quick look plots of calibrated | | Doppler 2 X-band | | B2S Quick look plots of calibrated | | Doppler 2 S-band | | | | DSN level 2 data: | | ----------------- | | DPX calibrated Doppler X-band | | DPS calibrated Doppler S-band | | RGS calibrated S-band ranging file | | RGX calibrated X-band ranging file | | BSR bistatic radar power spectra | | SRG bistatic radar surface reflection | | geometry file | | | | DSN level 2 calibration data: | | ---------------------------- | | SRF Surface Reflection Filter Files | | | | orbit files level 2: | | -------------------- | | PTW Doppler & range prediction two-way | | PON Doppler & range prediction on | | RTW reconstructed Doppler & range orbit | | file two-way | | RON reconstructed Doppler & range orbit | | file one-way | | LOC heliocentric state vector file | | | | Constellation file Level 2: | | --------------------------- | | MAR Mars constellation file | | VEN Venus constellation file | | P67 Churyumov-Gerasimenko | | constellation file | | | | SPICE kernel files level 2: | | --------------------------- | | BSP binary spacecraft/location | | kernel file | | FRM frame kernel file | | ORB orbit numbering file | | PBC predicted attititude kernel file | | PCK planetary constant kernel | | SCK space craft clock kernel | | TLS leap second kernel file | | | | Science data level 3: | | --------------------- | | SCP solar corona science | --------|------------------------------------------|-------- yy | Year | 04 --------|------------------------------------------|-------- ddd | Day of year | 153 --------|------------------------------------------|-------- hhmm | Sample hour, minute start time | 1135 | For IFMS files this is the ESOC | | reference time tag which usually | | coincides with the first sample time. | | For IFMS Ranging files however this is | | not true. Here the reference time tag | | is twoway light time before the first | | actual measurement. | --------|------------------------------------------|-------- qq | Sequence or version number | 01 --------|------------------------------------------|-------- eee | .DAT binary files (Level 1a) | .RAW | .TAB ASCII table data file | | .AUX ancillary file | | .CFG IFMS configuration file (Level 1b) | | .LBL PDS label files | | .TXT information files | | .RAW ASCII data files (Level 1a) | | .LOG Processing log files (Level 2) | Processing (DSN) ================ TNF's are screened for 'bad' data points by the JPL Radio Metric Data Conditioning Team (RMDCT) before the files are processed to ODF's. The TNF's included in this archive, however, are the pre-screened versions. The open-loop (RSR) data in the archive have been assembled from individual records (packets) into files. They have not otherwise been processed. The Level 2 radio occultation data have been processed as follows. The RSR samples were digitally filtered to reduce bandwidth; in the process they were also converted from 16-bit I and 16-bit Q complex integer samples to 64-bit I and 64-bit Q double precision complex floating point samples. The complex floating point samples were Fourier transformed and estimates made of the carrier amplitude and frequency and their uncertainties. The reconstructed spacecraft trajectory, planetary ephemerides, records of uplink and downlink tuning, and other data were used to calculate the expected carrier frequency at the receiving antenna. The Level 2 products are tables of the observed amplitude, its uncertainty, the observed frequency, its uncertainty, and the difference between the observed and the expected frequency as a function of time. Separate tables have been created for each RSR. The Level 2 bistatic radar spectra (SPC) have been processed as follows. The RSR samples were converted from 16-bit I and 16-bit Q complex integer samples to 64-bit I and 64-bit Q double precision complex floating point samples. In the process they were digitally corrected for non-uniform spectral response of the receiving system. This was done by computing spectra from series of time samples and dividing each spectrum by the square root of a power spectrum computed from many minutes of noise. The amplitude of the samples was then adjusted so that power spectra in each receiver channel would have an amplitude proportional to kTsysB where k is Boltzmann's constant, Tsys is the receiver system temperature in kelvins, and B is the width of one frequency bin (spectral resolution) in the power spectrum. Then the power spectra (e.g., XR*conj(XR)) and cross spectra (e.g., XR*conj(XL)) were computed. Structure of DATA Directory =========================== Please note that the following description lists all possible subfolders. If however there is no data to fill some of these folders they will not be generated. |-DATA | |-LEVEL1A | | |-CLOSED_LOOP | | | |-DSN | | | | |-ODF Orbit Data Files | | | | |-Tracking and Navigation Files | | | | | | | |-IFMS | | | |-AG1 Auto Gain Control 1 data files | | | |-AG2 Auto Gain Control 2 data files | | | |-DP1 Doppler 1 data files | | | |-DP2 Doppler 2 data files | | | |-RNG Ranging data files | | |-OPEN_ LOOP | | | |-DSN | | | | |-RSR Radio-Science Receiver data files | | | | | | |-IFMS | | |-AG1 Auto Gain Control 1 data files | | |-AG2 Auto Gain Control 2 data files | | |-DP1 Doppler 1 data files | | |-DP2 Doppler 2 data files | | |-RNG Ranging data files | | | |-LEVEL1B | | |-CLOSED_ LOOP | | | |-DSN | | | | |-ODF Orbit Data Files | | | | | | | |- IFMS | | | | |- AG1 Auto Gain Control 1 data files | | | | |- AG2 Auto Gain Control 2 data files | | | | |- DP1 Doppler 1 data files | | | | |- DP2 Doppler 2 data files | | | | |- RNG Ranging data files | | | | | |- OPEN_LOOP | | | |-IFMS | | | | |-AG1 Auto Gain Control 1 data files | | | | |-AG2 Auto Gain Control 2 data files | | | | |-DP1 Doppler 1 data files | | | | |-DP2 Doppler 2 data files | | | | |-RNG Ranging data files | |-LEVEL2 | | |- CLOSED_ LOOP | | | |- DSN | | | | |-ODF Orbit Data Files | | | | | | | |- IFMS | | | | |-DP1 Doppler 1 data files | | | | |-DP2 Doppler 2 data files | | | | |-RNG Ranging data files | | |- OPEN_ LOOP | | | |-DSN | | | | |-BSR Bistatic radar power spectra | | | | |-SRG Bistatic radar surface reflection | | | | | geometry file | | | | |-DPX Doppler X-Band files | | | | |-DPS Doppler S-Band files | | | |-IFMS | | | | |-DP1 Doppler 1 data files | | | | |-DP2 Doppler 2 data files | | | | |-RNG Ranging data files Files in the DATA Directory ---------------------------- Files in the DATA directory are: Data Level 1a: ------------------- Level 1a data are incoming raw tracking data files obtained either from ESA IFMS or DSN. All incoming data files will be renamed after the file naming convention format defined in section 4.1 of the MaRS File Naming Convention document [MARSFNC2004] and get a minimal detached label file .LBL. The original file name of the incoming tracking data files will be stored in the according label file as SOURCE_PRODUCT_ID. These files have the file extension .RAW if ASCII and .DAT if binary files. TNF's are screened for 'bad' data points by the JPL Radio Metric Data Conditioning Team (RMDCT) before the files are processed to ODF's. The TNF's included in this archive, however, are the pre-screened versions. Tracking and Navigation Files (TNF Directory) --------------------------------------------- TNF's became available within a few hours of the completion of a Mars Express pass. Orbit Data Files -------------------------------- ODF's were typically issued daily throughout the MEX mission with weekend data being consolidated into a single file on Monday. Typical ODF's have sizes 15-50 kB. All ODFs in the NEV archive have 60 second sampling. For higher sampling rates, the user must resort to the (more primitive) TNF products. Radio Science Receiver Files (RSR Directory) -------------------------------------------- Each RSR generated a stream of packets which could be assembled into files of arbitrary length. It was decided, after some experimentation, that files containing about 300 MB were the largest that could be easily manipulated in the analysis computers available in 2003. With a small number of exceptions, this is the largest file size that will be found in the RSR directory. The open-loop (RSR) data in the archive have been assembled from individual records (packets) into files. They have not otherwise been processed. IFMS Data Level 1b: ------------------- Level 1b files are processed from level 1a (raw tracking data) into an edited ASCII formatted file. Three files are generated for each ESA IFMS Level 1a data file: Level 1b IFMS data file (extension .TAB) Level 1b IFMS configuration file (extension .CFG) Level 1b IFMS label file (extension .LBL) The label file contains the description of the .TAB as well as of the .CFG file. Up to eight files are generated for each DSN ODF Level 1a file: Level 1b ODF Doppler S-Band data file + label file Level 1b ODF Doppler X-Band data file + label file Level 1b ODF Ranging S-Band data file + label file Level 1b ODF Ranging X-Band data file + label file Cologne is processing IFMS and ODF data, Stanford University processes RSR data up to level 2 and forwards raw and processed data to Cologne for archiving. However, for RSR there will be no level 1b files. Data Level 2: ------------ Level 2 data are calibrated data after further processing. The file format is in ASCII. This data level can be used for further scientific interpretation. The keyword OBSERVATION_TYPE in the Level 2 data labels indicates which kind of measurement was done. Keyword values are: Occultation, Target Gravity, Global Gravity, Solar Conjunction, Bistatic Radar, Commissioning and Phobos Gravity. Commissioning covers the NEV, CR1 and partly MCO Mission Phase where no specific measurement was done but equipment on board the spacecraft and on ground station was tested. IFMS Level 2 input files: ------------------------ There may be several Doppler 1 X-Band files in level 1a which will be merged on level 2. The same is true for all other Doppler file type and Ranging X and S-Band files. Only files with continous sequenced numbers (the file names are the same only the sequence number varies for these files) are merged together. Otherwise a new Level 02 data file is created (merging data files with a new sequence of files). The level 2 source_product_id however gives the RAW IFMS file names since the raw files are used for processing. But the content of the IFMS raw files are identical to the corresponding level 1a IFMS files in one data set, only the file name is different. And the source_prodict_id of the level 1a files gives the original raw IFMS files. In addition the level 1A files have almost the same file name as the corresponding level 2 files. The corresponding level 1A files can be found in DATA/LEVEL1A/CLOSED_LOOP/IFMS/DP1 for Doppler 1 files DATA/LEVEL1A/CLOSED_LOOP/IFMS/DP2 for Doppler 2 files DATA/LEVEL1A/CLOSED_LOOP/IFMS/RNG for Ranging files ---------------------------------------------------------------- Example: M32ICL1L02_D1X_040931103_00.TAB is a level 2 Doppler 1 X-Band file in M32ICL1L02_D1X_040931103_00.LBL the following SOURCE_PRODUCT_ID is given: SOURCE_PRODUCT_ID = {NN11_MEX1_2004_093_OP_D1_110358_0000, NN11_MEX1_2004_093_OP_D1_110358_0001, NN11_MEX1_2004_093_OP_D1_110358_0002} which are the raw IFMS files. The corresponding Level 1A files can be found in DATA/L1A/CLOSED_LOOP/IFMS/DP1 Their names are: M32ICL1L1A_D1X_040931103_00.RAW M32ICL1L1A_D1X_040931103_01.RAW M32ICL1L1A_D1X_040931103_02.RAW and the corresponding label files give the source_product_id as: in the M32ICL1L1A_D1X_040931103_00.LBL file the source_product_id is given as: SOURCE_PRODUCT_ID = NN11_MEX1_2004_093_OP_D1_110358_0000 in the M32ICL1L1A_D1X_040931103_01.LBL file the source_product_id is given as: SOURCE_PRODUCT_ID = NN11_MEX1_2004_093_OP_D1_110358_0001 in the M32ICL1L1A_D1X_040931103_02.LBL file the source_product_id is given as: SOURCE_PRODUCT_ID = NN11_MEX1_2004_093_OP_D1_110358_0002 Note that in this example the three level 1A files were merged to one level 2 files. The file names of the level 1a files are almost identical to the level 2 file name with three differences: - L1A instead of L02 in the file name which tells the user that these are level 1A and level 2 files. - The two digit-sequence number at the end of the file can be different. - The level 1A files have file extension .RAW whereas level 2 files have file extension .TAB ----------------------------------------------------------------- Other inputs for Doppler and Ranging files: ------------------------------------------ predicted orbit file (see EXTRAS/ANCILLARY/UNI_BW) Meteorological file (see CALIB/CLOSED_LOOP/IFMS/MET) AGC file (see DATA/1A or 1B/CLOSED_LOOP/AGC1 or AGC2) Spacecraft orbit SPICE kernels (see EXTRAS/ANCILLARY/SPICE can also be downloaded from ftp://solarsystem.estec.esa.nl/pub/projects/MEX/data/spice ) Calibration Documentation: ------------------------- For documentation about Doppler and Ranging Calibration please see in DOCUMENT/MRS_DOC/MEX_MRS_IGM_DS_3035 and MEX_MRS_IGM_DS_3036 For differential Doppler: ------------------------ If the processed level 2 file is for example Doppler 1 X-Band then information from IFMS raw Doppler 1 S-Band files which cover approximately the same time were used for processing as well. For Doppler 1 S-Band information from IFMS raw Doppler 1 X-Band files were used. Doppler 2 files were processed accordingly. In most cases on IFMS1 and IFMS2 X-Band data were recorded: The corresponding raw files' names start with NN11_ or NN12_ . S-Band data were in most cases recorded at IFMS3. The corresponding raw files' names start with NN13_. If for some reason this configuration was changed this is indicated either at the beginning of this description or at the end in the anomaly report. For Ranging in addition are used: -------------------------------- Range calibration file (see CALIB/CLOSED_LOOP/IFMS/RCL) Klobuchar coefficients for Earth ionosphere calibration (can be downloaded from this site http://www.aiub.unibe.ch/download/CODE/) The calibrated Doppler files contain observed IFMS sky frequency, X-band Doppler and S-band Doppler frequency shift, residual (computed using the predict file), and the differential Doppler. If only a single downlink frequency was used, a differential Doppler cannot be computed and was set to zero in the output file. The level 2 ranging files contain the observed TWLT at X-band or S-band, the calibrated TWLT at X-band or S-band, the TWLT delay at X-band or S-band and the differential TWLT. If only one frequency was used, the differential TWLT is set to zero. IFMS Level 2 output files: ------------------------ Level 2 IFMS data file (extension .TAB) Level 2 IFMS label file (extension .LBL) Level 2 IFMS log file (extension .LOG). The logfiles can be found in /EXTRAS/ANCILLARY/MRS/LOGFILES and contain information about the level 2 Doppler and Ranging data processing. ODF Level 2 input files: ------------------------ ODF Level 1b files Doppler and Range prediction file Or Orbit reconstructed file Media calibration files The calibrated Doppler files contain observed IFMS Doppler expressed as X-band Doppler or S-band Doppler, residual and detrended X-band or S-band Doppler (computed using the predict file), the detrended differential Doppler. If only one single frequency was used, the differential Doppler will be set to zero. The level 2 ranging file contains the observed Two-Way-Light-Time (TWLT) at X-band or S-band, the calibrated TWLT at X-band or S-band, the TWLT delay at X-band or S-band and the differential TWLT. If only one frequency was used, the differential TWLT is set to zero. RSR Level 2 data: ---------------- There are four types of 'calibrated' data in the data set; each is described briefly below. Surface Reflection Filter Files ------------------------------- SRF files contain power spectra derived from noise measurements when the radio system was stable and there were no spacecraft signals in the passband. SRF's were derived separately for each receiver channel; but the fact that the spectral characteristics of each receiver depended almost entirely on digital signal processing meant that there was little practical difference among channels when sampling rates (output bandwidths) were the same and the SRF's were interchangeable. SRF's were ASCII PDS SPECTRUM objects with attached labels. Level 2 Neutral Atmosphere Files ------------------------------------------------ L2N files were the calibrated output of partial processing of RSR data collected for radio occultations. They were ASCII tables of frequencies and amplitudes in physically meaningful units. Separate L2N files were derived for each receiver channel. The Level 2 radio occultation data have been processed as follows. The RSR samples were digitally filtered to reduce bandwidth; in the process they were also converted from 16-bit I and 16-bit Q complex integer samples to 64-bit I and 64-bit Q double precision complex floating point samples. The complex floating point samples were Fourier transformed and estimates made of the carrier amplitude and frequency and their uncertainties. The reconstructed spacecraft trajectory, planetary ephemerides, records of uplink and downlink tuning, and other data were used to calculate the expected carrier frequency at the receiving antenna. The Level 2 products are tables of the observed amplitude, its uncertainty, the observed frequency, its uncertainty, and the difference between the observed and the expected frequency as a function of time. Separate tables have been created for each RSR. Level 2 Bistatic Radar Spectra ---------------------------------------------- SPC files were the calibrated output of partial processing of RSR data collected for bistatic radar. They were ASCII tables of power and cross-voltage spectra. All spectra for a single observation were collected in a single ASCII file The Level 2 bistatic radar spectra (BSR) have been processed as follows. The RSR samples were converted from 16-bit I and 16-bit Q complex integer samples to 64-bit I and 64-bit Q double precision complex floating point samples. In the process they were digitally corrected for non-uniform spectral response of the receiving system. This was done by computing spectra from series of time samples and dividing each spectrum by the square root of a power spectrum computed from many minutes of noise. The amplitude of the samples was then adjusted so that power spectra in each receiver channel would have an amplitude proportional to kTsysB where k is Boltzmann's constant, Tsys is the receiver system temperature in kelvins, and B is the width of one frequency bin (spectral resolution) in the power spectrum. Then the power spectra (e.g., XR*conj(XR)) and cross spectra (e.g., XR*conj(XL)) were computed. Structure of CALIB Directory ============================ Please note that the following description lists all possible subfolders. If however there is no data to fill some of these folders they will not be generated. |-CALIB | |-CALINFO.TXT text description of the directory contents | |-CLOSED_ LOOP | | |-DSN Closed-loop calibration data of the DSN ground stations | | |-IFMS | | | |-RCL Range Calibration data files | | | |-DCL Doppler Calibration data files | | | |-MET Meteo data files | | | |-OPEN_LOOP | | |-DSN | | | |-BCAL System temperature calibration files | | | |-ION Ionospheric Calibration files | | | |-MET Meteo data files | | | |-TRO Tropospheric Calibration files | | | |-SRF Surface Reflection Filer Files | | | | | |-IFMS | | | |-RCL Range Calibration data files | | | |-DCL Doppler Calibration data files | | | |-MET Meteo data files | | | |-UPLINK_FREQ_CORRECT Folder includes files which indicate wrong | and corrected uplink frequency and their | corresponding files. Files in the CALIB Directory ---------------------------- Files in the CALIB directory are: Calibration data files have in principle the same structure as normal data files. But they do not contain scientific data but rather reflect the behaviour of the system. These kind of data is typically recorded at New Norcia once for every tracking before the real measurement took place. For example: range calibration data contain the equipment propagation delay measurements before the tracking pass. Note: if the uplink frequency in one of the .RAW files was identified as wrong the folder UPLINK_FREQ_CORRECT will be generated. It tells the user which files were affected and where to find the corrected Level 2 data files. Closed loop IFMS Calib data level 1a: ------------------------------------- These Level 1a data are incoming raw tracking data files obtained from ESA IFMS. All incoming data files will be renamed after the file naming convention format defined in section 4.1 of the MaRS File Naming Convention document [MARSFNC2004] and get a minimal detached label file .LBL. The original file name of the incoming tracking data files will be stored in the according label file as SOURCE_PRODUCT_ID. These files have the file extension .RAW. Closed loop IFMS Calib data level 1b: ------------------------------------- IFMS Calib level 1b files are processed from level 1a (raw tracking data) into an edited ASCII formatted file. Three files are generated for each ESA IFMS Level 1a data file: Level 1b IFMS data file (extension .TAB) Level 1b IFMS configuration file (extension .CFG) Level 1b IFMS label file (extension .LBL) The label file contains the description of the .TAB as well as of the .CFG file. DSN METEO Files (MET directory) --------------------------------------------------- DSN METEO files were produced by the Tracking System Analytic Calibration (TSAC) Group at JPL. Files give weather calibration information for DSN complexes. These are ASCII files of variable length records. Each record is delimited by an ASCII line-feed (ASCII 10). METEO files were typically released weekly and contain all weather data for the complex since 1 January. Each METEO file is accompanied by a PDS label. The files grow at the rate of approximately 90 kB per month. DSN Ionosphere Calibration Files (ION Directory) --------------------------------------------------- Ionosphere Calibration files were produced by the Tracking System Analytic Calibration (TSAC) Group at JPL. They documented and predicted Earth ionospheric conditions. Global Ionosphere Map (GIM) software created daily maps from Global Positioning System (GPS) data. Each day, a final map was created for the UT day three days previously and a preliminary map was created for the UT day immediately before. Also created were predict maps a couple times a week by averaging recent 'normal' days. Then the software evaluated the maps at the spacecraft line-of-sight and fitted the results to a normalized polynomial versus time over each spacecraft pass. This was done for all three modes: final, preliminary, and predict. Then the software selected the best available calibration for each pass (in priority order final > preliminary > predict). An operator ran a plotting program to view all of the calibrations and overrode the default selections where desired. The mapping technique is described by [MANNUCCIETAL1998]. These are ASCII files of variable length records. Each record is delimited by an ASCII carriage-return line-feed pair (ASCII 13 followed by ASCII 10). ION files were usually released at one week intervals to cover a single month; only final files covering a full month are included in this archive. Each ION file is accompanied by a PDS minimal label. Typical file sizes are approximately 50 kB. Troposphere Calibration Files (TRO Directory) --------------------------------------------------- Troposphere Calibration files were produced by the Tracking System Analytic Calibration (TSAC) Group at JPL. They documented and predicted Earth tropospheric conditions and were based on measurements made using Global Positioning System (GPS) satellites. These are ASCII files of variable length records. Each record is delimited by an ASCII line-feed (ASCII 10). Surface Reflection Filter Files (SRF Directory) ----------------------------------------------- SRF files contain power spectra derived from noise measurements when the radio system was stable and there were no spacecraft signals in the passband. SRF's were derived separately for each receiver channel; but the fact that the spectral characteristics of each receiver depended almost entirely on digital signal processing meant that there was little practical difference among channels when sampling rates (output bandwidths) were the same and the SRF's were interchangeable. SRF's were ASCII PDS SPECTRUM objects with attached labels. System Temperature Calibration Files (BCAL directory) ----------------------------------------------------- This table contains system temperature calibration results from Mars Express (MEX) bistatic radar experiments. For each receiver channel the table includes the best estimate of system temperature with the antenna pointed to zenith (either pre- or post-cal, or a combination of both), the associated noise diode temperature, and the system temperature at the mid-point of the bistatic (surface) observation. In general there is one set of four rows for each experiment - one for each receiver channel (X-band and S-band, right- and left-circular polarization). The table is cumulative, growing by four rows for each new observation. The Bistatic Radar Calibration Log is produced by the Stanford University Element (SUE) of the Mars Express Radio Science Team under the direction of R.A. Simpson. Browse Files (BROWSE Directory) ============================ Browse files may be composite PostScript files summarizing quick-look processing of raw RSR data. In that case each file has a name: rggttttL1A_BRO_yydddhhmm_00.AUX. Each file has a JPEG version with the same file name but extension .LBL. Both files are accompanied by a single detached label of the same file name but extension .LBL. Each PostScript file is sized to fit on a single 8-1/2x11 inch page. Each landscape format page includes four panels showing a histogram of raw data (12-bit) samples (upper left), one-minute average power spectra derived from the raw samples (upper right), one-second averages of raw sample power versus time (lower left), and an extract of the first few lines of the source RSR PDS label (lower right). BRO files may be helpful in quickly scanning data to determine which files are suitable for closer study. IFMS Browse plot files are only available as JPEG files. These plots are generated in order to check data quality of IFMS Level 2 closed-loop data. The name of the files are the same like the Level 2 data files except for the data type identifier which is set as sss=B1X,B1S,B2X,B2S if the source of the plots is a Doppler 1 X-Band, Doppler 1 S-Band, Doppler 2 X-Band or Doppler 2 S-Band file, and the extension will be .JPG. Ancillary Data ============== An extensive set of ancillary files is needed for proper analysis and interpretation of the radio data. These are organized in parallel directories and stored approximately chronologically. When a file type is not represented on a CD-WO volume, the corresponding directory has been omitted. Files in the EXTRAS/ANCILLARY Directory ---------------------------- Files in the EXTRAS/ANCILLARY directory are: ESOC: Relevant DDS files to describe the observation geometry SPICE: Relevant SPICE Kernels to describe the observation geometry UNI_BW: Relevant PREDICT files from the Uni BW Munich MRS: Level 2 processing logfiles SUE: Ancillary files coming from Stanford University |-SPICE: | Spice Kernels were produced by the MEX Flight Dynamics Team, | converted to IEEE binary format, and then distributed by the | JPL Navigation and Ancillary Information Facility (NAIF). | For more information on NAIF and SPICE see | http://pds-naif.jpl.nasa.gov/ | | The original Spice Kernels were merged with the JPL DE405 | planetary ephemeris and the ephemerides of Phobos and Deimos | for the same time interval. | DSN: Ancillary files provided by Deep Space Network |-EOP: Earth Orientation Parameter Files | | Earth Orientation Parameter files were produced by the Time | and Earth Motion Precision Observation (TEMPO) Group at JPL. | They documented and predicted Earth rotation (rate and axis). | These are ASCII files of variable length records. Each | record is delimited by an ASCII line-feed (ASCII 10). | There are both 'long'and 'short' versions. The long file covered | past motion since about 1962 and a prediction for about three | months into the future; these files have typical sizes of 1 MB. | The short file covered the most recent nine months of past motion | and a prediction for three months into the future; these files are | typically 30 kB. Each EOP file is accompanied by a PDS minimal | label | |-OPT: Orbit Propagation and Timing Geometry File | |Orbit Propagation and Time Generation files contain estimates of |event timing (e.g., equator crossings) that depend on |precise knowledge of the spacecraft orbit. These are ASCII |files of variable length records. Each record is delimited |by an ASCII carriage-return (ASCII 13) line-feed |(ASCII 10) pair. File names have the form ydddeeeC.OPT where |the file name components are the same as for BCK files (above). |Each OPT file is accompanied by a PDS minimal label with file |name ydddeeeC.LBL. Typical files are based on reconstructed |spacecraft trajectories, cover a month of operation, and have |sizes less than 500 kB. | |-LIT: Light Time File | |Light Time files give radio propagation time from the spacecraft to |Earth as a function of time. These are ASCII files of fixed length |records. Each record is delimited by an ASCII carriage-return |line-feed pair. File names have the form ydddeeeC.LIT where the |file name components are the same as for DKF files. An LIT file may |cover more than 365 days; so eee may be a year or more after |yddd. Each LIT file is accompanied by a PDS label. |Typical file sizes are less than 1 MB. | Software ======== Software for parsing, reducing, and analyzing data such as these has been developed at University of Cologne and Stanford University. Because such software must usually operate at the bit-level and is written for a narrow range of platforms, it is not suitable for general distribution. No software is included with this archival data set. Documents ============ The DOCUMENT directory contains the files that provide documentation and supplementary information to assist in understanding and using the data products on the volume. The files evolved as the mission progressed; users should refer to the files on the most recent (highest numbered) archive volume for the most up-to-date information. Files on early volumes may be only 'place-holders.' Structure of the DOCUMENT directory: DOCUMENT | |- DOCINFO.TXT Specifies the content of the | document directory |- MRS_DOC | | | |- M32ESOCL1B_RCL_021202_00.PDF Group delay stability specification | | and measurements at New Norcia. | | | |- M32ESOCL1B_RCL_030522_00.PDF Range calibrations at New Norcia | | and Kourou. | | | |- M32UNBWL1B_RCL_030801_00.PDF Transponder group velocities (in | | german). | | | |- MEX-MRS-IGM-IS-3019.PDF MaRS Data Archive Plan. | | MEX-MRS-IGM-IS-3019.ASC | | | | | |- MEX-MRS-IGM-IS-3016.PDF MaRS File Naming Convention. | | MEX-MRS-IGM-IS-3016.ASC | | | | | |- MEX-MRS-IGM-MA-3008.PDF MaRS User Manual. | | | | | | | |- MARS_OPS_LOGBOOK_04_COM.PDF Status of all planned comissioning | | radio science operations until | | 2004-01-23 | | | |- MEX-MRS-IGM-LI-3028.PDF | | | | List of MaRS Team members. | | | |- MEX_MRS_IGM_DS_3035.PDF | | | | IFMS Doppler Processing and | | Calibration Software | | Documentation: Level 1a to Level 2. | | | |- MEX_MRS_IGM_DS_3036.PDF | | | | IFMS Ranging Processing and | | Calibration Software | | Documentation: Level 1a to Level 2. | | | |- MEX-MRS-IGM-DS-3039.PDF Radio Science Predicted and Recon- | | structed Orbit and Planetary Con- | | stellation Data: Specifications | | | |- MEX-MRS-IGM-TN-3045.PDF Reference Systems and Techniques | for Simulation and Prediction of | atmospheric and ionospheric | sounding measurements | | |- ESA_DOC | | | |- IFMS-OCCFTP_10_3_1.PDF Documentation of IFMS data format. | | | |- MEX-ESC-ID-5003_FDSICD.PDF File format description of ESOC | | Flight Dynamics files (ancillary | | files). | | | |- MEX-ESC-IF-5003_APPENDIX_C.PDF | | | | Documentation of DDS configuration. | | | |- MEX-ESC-IF-5003_APPENDIX_I.PDF | | | | Definition of XML-schema for the | | data delivery interface. | | | |- MEX-ESC-IF-5003_APPENDIX_H.PDF | | | | Description of content of ESOC | | Flight Dynamics files (ancillary | | files). | | | |- MEX-ESC-IF-5003.PDF Data delivery interface document. | | | |- RO-EST-IF-5010_D15.PDF Specifications of operational | interfaces and procedures. | |- DSN_DOC | | | |-DSN_DESIGN_HB | | Technical information and near future configurations of NASA | | DSN | |-DSN_ODF_TRK-2-18.PDF | | Documentation of Tracking System Interfaces and Orbit | | Data File Interface | |-HGA_CALA.ASC | | High Gain Antenna calibration | |-HGA_SBDA.PDF | | S-band antenna patterns | |-HGA_XBDA.PDF | | X-band antenna patterns | |-JPL_D-16765_RSR.PDF | | Documentation of RSR data format | |-LIT_SIS.HTM | | Software Interface Specification: Light Time File | |-M00DSN0L1A_DKF_....TXT | | DSN Keyword File derived from SOE file and models of | | activities supported by the DSN | |-M00DSN0L1A_SOE_....TXT | | Sequence of Events file | |-M00SUE0L1A_ENB_....TXT | | SUE Experimenter Notes | |-M00SUE0L1A_HEA_....TXT | | DSN MEX Data Collection | |-M43DSN0L1A_NMC_....TXT | | Network Monitor and Control Logfile | |-M43SUE0L1A_MFT_....TXT | | Mars Express Manifest file | |-MEDIASIS.HTM | | Media Calibration data: formats and contents | |-MON0158.ASC/.DOC/.PDF | | Definition of format and distribution of the real-time, | | mission monitor data | |-NMC_SIS.TXT | | Contents of Network Monitor and Control Log. | |-OCCLOGnn.TAB | | Summary information of MEX radio science tests and | | experiments. nn represents the sequence number. | |-OPTG_SIS.TXT | | Software Interface Specification for the Orbit Propagation | | and Timing Geometry (OPTG) file. | |-Ryddd?.ASC/.DOC/.PDF | | Set of notes describing tests before and during radio | | science tests or operations or the progress of an | | experiment itself. y represents the year, ddd the DOY. | |-Ryddd.ZIP | | Zip-folder with 4 sets of 24 jpeg-files, each from a | | different receiver, showing circularly polarized received | | power spectra averaged over 60 seconds. FILENAME: | | Rydddbca.jpg with y:year, ddd:doy, b:X- or S-band, c: Left- | | or Right-Hand circulation, a:alphabetic numbering for each | | plot of 60s. | |-SRX.TXT | | Software Interface Specification for Surface Reflection | | investigation files. | |-SUE_DMP.ASC/.DOC | | Data Management Plan | |-TNF_SIS.TXT | | Deep Space Mission System External Interface Specification | |-TRK_2_21.TXT | | Software Interface Specification | |-TRK_2_23.TXT / DSN_MEDIA_CAL_TRK_2_23.PDF | | Specification of DSN media calibration data. | |-TRK_2_24.TXT / DSN_WEA_FORMAT_TRK_2_24.PDF | | Specification of DSN weather file. The documents are either in PDF-Format or are text files in ASCII with variable length of characters per line. Each line is delimited with a carriage-return (ASCII 13) line-feed (ASCII 10) pair. Media/Format ============ The archival data set is written on CD-WO media using the WinOn CD Creation Software or Nero Burning Rom. The CD-WO volumes conform to ISO 9660 standards. More general description of radio science data ============================================== Closed-loop and Open-loop data: ================================ There are in principle two different ways to record radio science data: Open-loop and closed-loop data. The CLOSED-LOOP system used a phase-lock loop in the receiver to track the downlink signal, reporting both amplitude and frequency at rates typically of 1-10 times per second. In the OPEN-LOOP system, the signal was simply converted to a baseband frequency range; the entire passband was sampled and recorded for later processing. Typical open-loop sampling rates for MEX were 2000 complex samples per second. CLOSED-LOOP data are efficient for characterizing slowly changing signals; OPEN-LOOP data (because of their much higher volume) are usually used when the signal is very dynamic - such as during an occultation or bistatic radar measurement. The data set includes four primary data types with respect to the two different ground station systems. These systems are on the one hand the ESA ground station in New Norcia, Australia (NNO) and the NASA Deep Space Network (DSN). CLOSED-LOOP data types: | |- ESA: Intermediate Frequency Modulation System (IFMS) Closed-Loop (CL) | | In this data set file names of data recorded at the | New Norcia IFMS closed loop system start with the | string 'M32_ICL' | | IFMS CL consists of Doppler and Ranging data at | selected sample rates. The sample rate is usually 1/s. | The only exception are occultation data where the | sample rate should be 10/s to get a good enough | vertical resolution of the atmosphere. | Ranging are only recorded for gravity measurements. | | Thus the IFMS closed loop has three recording systems | IFMS 1, IFMS 2 and IFMS 3 | The standard_data_product_id in the data label | specifies on which system the data was recorded. | | MaRS measurements are usually done in TWO-WAY | configuration: that is an uplink signal goes up | (This is usally X-BAND but the uplink signal can also | be S-Band) and the ground station receives a dual | frequency simultanous and coherent downlink signal. | | IFMS 1 is configured for the uplink signal. It | receives X-Band downlink if uplink was X-Band and | S-Band downlink if uplink was S-Band. | IFMS 2 acts at backup. | IFMS 3 records the second downlink signal. This is | usually S-Band. But can also be X-Band when the uplink | was S-Band. | From 20.12.04: | IFMS 1 D1 is fixed to a sample rate of 1/s | IFMS 1 D2 is on fixed to a sample rate of 1/10s | | In addition each Doppler recording system has also | two Doppler channels which can record simultanously | and act as an additional backup system. | Therefor for each IFMS system there should be at a | given time two Doppler files and two Auto Gain Control | files recorded. The file names of these data contain | the string '_D1' or_'D2' for Doppler and '_G1' or | '_G2' for Auto Gain control files and they will be on | different subfolders within the data directory. See | further down the description of the DATA Directory. | | For these data files only X-Band ranging was possible. | Ranging data was nominally recorded on IFMS1. | |- DSN: |-The Tracking and Navigation File (TNF) | | | The Tracking and Navigation File (TNF) is the primary output | from the DSN closed-loop receiver system. These are large | files, accumulating at the rate of approximately 3 megabytes | (MB) per hour of antenna operation. The files comprise nearly | 20 block types, each designed to carry data of interest to a | particular navigation, telecommunications, or science community. | The blocks are described by TNF_SIS.TXT in the DOCUMENT/DSN_DOC | directory. Fields include: | Uplink and downlink antenna numbers | Spacecraft number | Equipment identifiers, status flags, and calibration values | Time tags and frequency bands | Transmitted and received phase and frequency | Transmitted and received ranging information | Noise levels, signal-to-noise ratios, and uncertainties | |-Orbit Data Files (ODF) | | For many applications the TNF is too cumbersome. The ODF is an | edited and partially processed version of the TNF. It is a | smaller file, often issued in daily increments of about 0.2 MB. | It contains the most important information (range and Doppler) | needed by spacecraft navigators and investigators interested in | determining gravitational fields of bodies such as Mars. Each | ODF is accompanied by a full PDS label which describes both the | content and format of the associated file. ODF data fields | include: | Narrowband spacecraft VLBI, Doppler mode (cycles) | Narrowband spacecraft VLBI, phase mode (cycles) | Narrowband quasar VLBI, Doppler mode (cycles) | Narrowband quasar VLBI, phase mode (cycles) | Wideband spacecraft VLBI (nanoseconds) | Wideband quasar VLBI (nanoseconds) | One-way Doppler (Hertz) | Two-way Doppler (Hertz) | Three-way Doppler (Hertz) | One-way total count phase (cycles) | Two-way total count phase (cycles) | Three-way total count phase (cycles) | PRA planetary operational discrete spectrum range (range | units) | SRA planetary operational discrete spectrum range (range | units) | RE(GSTDN) range (nanoseconds) | Azimuth angle (degrees) | Elevation angle (degrees) | Hour angle (degrees) | Declination angle (degrees) | | For more information please refer to document | [DSNTRK-2-18] in the DOCUMENT/DSN_DOC folder. Open- Loop data types: | |-ESA: Intermediate Frequency Modulation System (IFMS) Open-Loop (OL) | | During the comissioning phase the IFMS Open-Loop | recording system was not implemented, yet. | |-DSN: Radio- Science Receiver (RSR) | | The Radio Science Receiver (RSR) is a computer- | controlled open loop receiver that digitally records a | spacecraft signal through the use of an analog to | digital converter (ADC) and up to four digital filter | sub-channels. The digital samples from each | sub-channel are stored to disk in one second records | in real time. In near real time the one second records | are partitioned and formatted into a sequence of RSR | Standard Format Data Units (SFDUs) which are | transmitted to the Advanced Multi-Mission Operations | System (AMMOS) at the Jet Propulsion Laboratory (JPL). | Included in each RSR SFDU are the ancillary data | necessary to reconstruct the signal represented by the | recorded data samples. | | Each SFDU is defined here as a single row in a | PDS TABLE object; later SFDUs are later rows. The | first fields in each row contain the ancillary data | (time tags and frequency estimates, for example) that | applied while the samples at the end of the record | were being collected. The object definitions below | explain where the fields are and what the contents | represent. | | Analysis of variations in the amplitude, frequency, | and phase of the recorded signals provides information | on the ring structure, atmospheric density, magnetic | field, and charged particle environment of planets | which occult the spacecraft. Variations in the | recorded signal can also be used for detection of | gravitational waves. | | DSN open-loop receivers sample a narrow part of the microwave | spectrum near the spacecraft transmitting frequency. For radio | occultation tests, two RSR's were used -- one each for X-RCP | and S-RCP with output sampled at rates of 2000 (complex; | 16-bit I, 16-bit Q). | The data were examined for compliance with data acquisition | procedures and to measure the frequency/stability of the radio | link. Four RSR's (X-RCP, S-RCP, X-LCP, and S-LCP) each sample | at a rate of 25000 (complex; 16-bit I, 16-bit Q) to test bistatic | radar data acquisition. | | Header information accompanying each RSR record included: | | Date and time of the first data sample | Sample rate and channel assignments | Receiver local oscillator phase and frequency | Attenuator settings | RMS voltages at several stages in the receiving chain | | | For more information please refer to document | [JPLD-16765] in the DOCUMENT/DSN_DOC folder. " CONFIDENCE_LEVEL_NOTE = " Overview ======== Data in this archival data set have been processed as part of health monitoring activities of the MEX Radio Science Team. In general, this is a good data set. Review ====== This archival data set was reviewed by the MEX Radio Science Team prior to submission to the Planetary Science Archive (PSA). Prior to creation of the final version of the archival data set, key elements of the archive were distributed for preliminary review. These included electronic versions of example PDS labels, CATALOG files, and Software Interface Specifications. These materials were distributed to PDS personnel, the experiment investigator, and others, as appropriate. ODR files on the CD-WO volumes were checked using Stanford parsing and reduction software to ensure that they were both complete and accurate replicas of the data contained in the original files. Data Coverage and Quality ========================= The data in this mission phase cover the following events and CDs. VOLUME_ID Start Date End Date Notes ----------- ---------- ----------- ------------- MEXMRS_0001 2003-06-29 2003-06-30 Commissioning MEXMRS_0002 2003-07-01 2003-07-02 Commissioning MEXMRS_0005 2003-07-06 2003-07-06 Commissioning MEXMRS_0007 2003-07-10 2003-07-10 Commissioning MEXMRS_0008 2003-07-11 2003-07-11 Commissioning MEXMRS_0009 2003-07-19 2003-07-19 Commissioning MEXMRS_0011 2003-10-18 2003-10-18 Commissioning MEXMRS_0013 2004-01-23 2004-01-23 Commissioning MEXMRS_0015 2004-03-23 2004-03-23 Target Gravity MEXMRS_0016 2004-03-27 2004-03-27 Target Gravity MEXMRS_0017 2004-04-02 2004-04-02 Occultation MEXMRS_0018 2004-04-03 2004-04-03 Occultation MEXMRS_0021 2004-04-07 2004-04-07 Occultation MEXMRS_0022 2004-04-07 2004-04-07 Occultation MEXMRS_0024 2004-04-08 2004-04-08 Occultation MEXMRS_0026 2004-04-09 2004-04-09 Occultation MEXMRS_0027 2004-04-10 2004-04-10 Occultation MEXMRS_0028 2004-04-11 2004-04-11 Occultation MEXMRS_0029 2004-04-11 2004-04-11 Occultation MEXMRS_0030 2004-04-12 2004-04-12 Occultation MEXMRS_0034 2004-04-16 2004-04-16 Occultation MEXMRS_0036 2004-04-17 2004-04-17 Occultation MEXMRS_0038 2004-04-18 2004-04-18 Occultation MEXMRS_0041 2004-05-15 2004-05-15 Occultation MEXMRS_0044 2004-05-16 2004-05-16 Global Gravity MEXMRS_0045 2004-05-17 2004-05-17 Occultation MEXMRS_0046 2004-05-18 2004-05-18 Occultation MEXMRS_0047 2004-05-20 2004-05-21 Bistatic Radar MEXMRS_0048 2004-05-22 2004-05-22 Occultation MEXMRS_0053 2004-05-25 2004-05-25 Occultation MEXMRS_0054 2004-05-26 2004-05-26 Occultation MEXMRS_0056 2004-05-28 2004-05-28 Occultation MEXMRS_0057 2004-05-29 2004-05-29 Occultation MEXMRS_0062 2004-06-01 2004-06-01 Occultation MEXMRS_0063 2004-06-02 2004-06-02 Occultation MEXMRS_0064 2004-06-03 2004-06-03 Occultation MEXMRS_0065 2004-06-04 2004-06-04 Occultation MEXMRS_0066 2004-06-05 2004-06-05 Occultation MEXMRS_0069 2004-06-08 2004-06-08 Occultation MEXMRS_0070 2004-06-10 2004-06-10 Occultation MEXMRS_0071 2004-06-11 2004-06-11 Occultation MEXMRS_0072 2004-06-12 2004-06-12 Occultation MEXMRS_0075 2004-06-14 2004-06-14 Occultation MEXMRS_0076 2004-06-14 2004-06-14 Occultation MEXMRS_0077 2004-06-15 2004-06-15 Occultation MEXMRS_0078 2004-06-15 2004-06-15 Occultation MEXMRS_0079 2004-06-17 2004-06-17 Occultation MEXMRS_0080 2004-06-18 2004-06-18 Occultation MEXMRS_0081 2004-06-18 2004-06-18 Occultation MEXMRS_0082 2004-06-19 2004-06-19 Occultation MEXMRS_0083 2004-06-19 2004-06-19 Occultation MEXMRS_0084 2004-06-19 2004-06-19 Occultation MEXMRS_0086 2004-06-21 2004-06-22 Global Gravity MEXMRS_0087 2004-06-22 2004-06-23 Global Gravity MEXMRS_0088 2004-06-23 2004-06-23 Occultation MEXMRS_0089 2004-06-23 2004-06-23 Occultation MEXMRS_0090 2004-06-23 2004-06-24 Global Gravity MEXMRS_0091 2004-06-24 2004-06-24 Occultation MEXMRS_0092 2004-06-24 2004-06-24 Occultation MEXMRS_0093 2004-06-25 2004-06-25 Occultation MEXMRS_0094 2004-06-28 2004-06-28 Occultation MEXMRS_0095 2004-06-28 2004-06-28 Occultation MEXMRS_0096 2004-06-29 2004-06-29 Occultation MEXMRS_0097 2004-06-29 2004-06-29 Occultation MEXMRS_0098 2004-06-30 2004-06-30 Occultation MEXMRS_0099 2004-06-30 2004-06-30 Occultation MEXMRS_0101 2004-07-01 2004-07-01 Global Gravity MEXMRS_0102 2004-07-02 2004-07-05 Global Gravity MEXMRS_0104 2004-07-04 2004-07-04 Global Gravity MEXMRS_0106 2004-07-07 2004-07-07 Occultation MEXMRS_0107 2004-07-09 2004-07-09 Occultation MEXMRS_0108 2004-07-10 2004-07-10 Occultation MEXMRS_0109 2004-07-10 2004-07-10 Occultation MEXMRS_0110 2004-07-11 2004-07-11 Occultation MEXMRS_0111 2004-07-14 2004-07-14 Occultation MEXMRS_0112 2004-07-15 2004-07-15 Occultation MEXMRS_0113 2004-07-15 2004-07-15 Occultation MEXMRS_0114 2004-07-16 2004-07-16 Occultation MEXMRS_0115 2004-07-18 2004-07-18 Occultation MEXMRS_0116 2004-07-20 2004-07-20 Occultation MEXMRS_0117 2004-07-22 2004-07-22 Occultation MEXMRS_0118 2004-07-24 2004-07-24 Occultation MEXMRS_0119 2004-07-24 2004-07-24 Occultation MEXMRS_0120 2004-07-25 2004-07-25 Occultation MEXMRS_0121 2004-07-26 2004-07-26 Occultation MEXMRS_0122 2004-07-28 2004-07-28 Occultation MEXMRS_0123 2004-07-29 2004-07-29 Occultation MEXMRS_0124 2004-08-31 2004-08-31 Solar Conjunction MEXMRS_0125 2004-07-31 2004-07-31 Occultation MEXMRS_0126 2004-08-02 2004-08-02 Occultation MEXMRS_0127 2004-08-02 2004-08-02 Global Gravity MEXMRS_0128 2004-08-25 2004-08-25 Solar Conjunction MEXMRS_0129 2004-08-03 2004-08-03 Occultation MEXMRS_0130 2004-08-04 2004-08-04 Global Gravity MEXMRS_0131 2004-08-05 2004-08-05 Occultation MEXMRS_0132 2004-08-05 2004-08-05 Occultation MEXMRS_0134 2004-08-07 2004-08-07 Global Gravity MEXMRS_0135 2004-08-08 2004-08-08 Occultation MEXMRS_0137 2004-08-09 2004-08-09 Occultation MEXMRS_0139 2004-08-11 2004-08-11 Global Gravity MEXMRS_0142 2004-08-14 2004-08-14 Occultation MEXMRS_0145 2004-08-15 2004-08-15 Global Gravity MEXMRS_0146 2004-08-15 2004-08-15 Global Gravity MEXMRS_0147 2004-08-18 2004-08-18 Solar Conjunction MEXMRS_0148 2004-08-21 2004-08-21 Solar Conjunction MEXMRS_0149 2004-08-28 2004-08-28 Solar Conjunction MEXMRS_0150 2004-08-29 2004-08-29 Solar Conjunction MEXMRS_0151 2004-08-30 2004-08-30 Solar Conjunction MEXMRS_0152 2004-09-01 2004-09-01 Solar Conjunction MEXMRS_0153 2004-09-03 2004-09-03 Solar Conjunction MEXMRS_0154 2004-09-04 2004-09-04 Solar Conjunction MEXMRS_0155 2004-09-05 2004-09-05 Solar Conjunction MEXMRS_0156 2004-09-06 2004-09-06 Solar Conjunction MEXMRS_0157 2004-09-06 2004-09-06 Solar Conjunction MEXMRS_0159 2004-09-08 2004-09-08 Solar Conjunction MEXMRS_0160 2004-09-10 2004-09-10 Solar Conjunction MEXMRS_0161 2004-09-11 2004-09-11 Solar Conjunction MEXMRS_0162 2004-09-12 2004-09-12 Solar Conjunction MEXMRS_0163 2004-09-13 2004-09-13 Solar Conjunction MEXMRS_0166 2004-09-17 2004-09-17 Solar Conjunction MEXMRS_0167 2004-09-18 2004-09-18 Solar Conjunction MEXMRS_0168 2004-09-18 2004-09-18 Solar Conjunction MEXMRS_0169 2004-09-19 2004-09-19 Solar Conjunction MEXMRS_0170 2004-09-20 2004-09-20 Solar Conjunction MEXMRS_0171 2004-09-21 2004-09-21 Solar Conjunction MEXMRS_0173 2004-09-23 2004-09-23 Solar Conjunction MEXMRS_0174 2004-09-24 2004-09-24 Solar Conjunction MEXMRS_0175 2004-09-25 2004-09-25 Solar Conjunction MEXMRS_0177 2004-09-28 2004-09-28 Solar Conjunction MEXMRS_0178 2004-10-01 2004-10-01 Solar Conjunction MEXMRS_0180 2004-10-05 2004-10-05 Solar Conjunction MEXMRS_0181 2004-10-10 2004-10-10 Solar Conjunction MEXMRS_0182 2004-10-12 2004-10-12 Solar Conjunction MEXMRS_0183 2004-10-13 2004-10-13 Solar Conjunction MEXMRS_0184 2004-10-15 2004-10-15 Solar Conjunction MEXMRS_0185 2004-10-16 2004-10-18 Target Gravity MEXMRS_0186 2004-10-17 2004-10-18 Global Gravity MEXMRS_0188 2004-10-20 2004-10-21 Global Gravity MEXMRS_0189 2004-10-22 2004-10-22 Solar Conjunction MEXMRS_0190 2004-10-25 2004-10-25 Global Gravity MEXMRS_0191 2004-10-26 2004-10-27 Target Gravity MEXMRS_0193 2004-10-28 2004-10-28 Global Gravity MEXMRS_0194 2004-10-30 2004-10-31 Global Gravity MEXMRS_0195 2004-11-01 2004-11-01 Global Gravity MEXMRS_0198 2004-11-04 2004-11-04 Global Gravity MEXMRS_0201 2004-11-07 2004-11-07 Global Gravity MEXMRS_0204 2004-11-10 2004-11-11 Global Gravity MEXMRS_0205 2004-11-13 2004-11-15 Global Gravity MEXMRS_0206 2004-11-15 2004-11-15 Global Gravity MEXMRS_0207 2004-11-17 2004-11-17 Target Gravity MEXMRS_0208 2004-11-19 2004-11-19 Target Gravity MEXMRS_0209 2004-11-20 2004-11-21 Global Gravity MEXMRS_0210 2004-11-22 2004-11-23 Global Gravity MEXMRS_0211 2004-11-25 2004-11-25 Global Gravity MEXMRS_0212 2004-11-27 2004-11-27 Global Gravity MEXMRS_0213 2004-11-29 2004-11-29 Global Gravity MEXMRS_0214 2004-11-30 2004-11-30 Global Gravity MEXMRS_0216 2004-12-08 2004-12-08 Occultation MEXMRS_0217 2004-12-09 2004-12-09 Target Gravity MEXMRS_0218 2004-12-10 2004-12-10 Occultation MEXMRS_0219 2004-12-11 2004-12-11 Target Gravity MEXMRS_0220 2005-06-04 2005-06-04 Global Gravity MEXMRS_0221 2004-12-12 2004-12-12 Occultation MEXMRS_0222 2004-12-12 2004-12-12 Occultation MEXMRS_0223 2004-12-13 2004-12-13 Occultation MEXMRS_0224 2004-12-14 2004-12-14 Target Gravity MEXMRS_0225 2004-12-14 2004-12-14 Occultation MEXMRS_0226 2004-12-15 2004-12-16 Target Gravity MEXMRS_0227 2004-12-15 2004-12-16 Global Gravity MEXMRS_0231 2004-12-17 2004-12-17 Occultation MEXMRS_0229 2004-12-17 2004-12-17 Target Gravity MEXMRS_0232 2004-12-18 2004-12-18 Occultation MEXMRS_0233 2004-12-18 2004-12-18 Occultation MEXMRS_0234 2004-12-20 2004-12-20 Occultation MEXMRS_0235 2004-12-20 2004-12-20 Global Gravity MEXMRS_0236 2004-12-20 2004-12-20 Occultation MEXMRS_0237 2004-12-21 2004-12-21 Occultation MEXMRS_0238 2004-12-22 2004-12-22 Occultation MEXMRS_0239 2004-12-23 2004-12-23 Occultation MEXMRS_0240 2004-12-23 2004-12-23 Global Gravity MEXMRS_0241 2004-12-25 2004-12-25 Occultation MEXMRS_0242 2004-12-26 2004-12-26 Occultation MEXMRS_0243 2004-12-26 2004-12-27 Occultation MEXMRS_0244 2004-12-27 2004-12-27 Occultation MEXMRS_0245 2004-12-27 2004-12-28 Occultation MEXMRS_0246 2004-12-28 2004-12-28 Occultation MEXMRS_0247 2004-12-29 2004-12-29 Occultation MEXMRS_0248 2004-12-29 2004-12-29 Occultation MEXMRS_0249 2004-12-29 2004-12-29 Occultation MEXMRS_0250 2004-12-30 2004-12-30 Occultation MEXMRS_0251 2004-12-30 2004-12-30 Occultation MEXMRS_0253 2005-01-01 2005-01-01 Occultation MEXMRS_0255 2005-01-01 2005-01-01 Occultation MEXMRS_0256 2005-01-02 2005-01-02 Global Gravity MEXMRS_0257 2005-01-02 2005-01-02 Occultation MEXMRS_0258 2005-01-03 2005-01-03 Occultation MEXMRS_0259 2005-01-04 2005-01-04 Occultation MEXMRS_0260 2005-01-04 2005-01-04 Occultation MEXMRS_0261 2005-01-09 2005-01-09 Global Gravity MEXMRS_0263 2005-01-10 2005-01-10 Global Gravity MEXMRS_0265 2005-01-12 2005-01-12 Global Gravity MEXMRS_0266 2005-01-12 2005-01-12 Global Gravity MEXMRS_0267 2005-01-13 2005-01-13 Global Gravity MEXMRS_0269 2005-01-14 2005-01-14 Target Gravity MEXMRS_0270 2005-01-15 2005-01-15 Global Gravity MEXMRS_0273 2005-01-16 2005-01-16 Global Gravity MEXMRS_0275 2005-01-18 2005-01-18 Target Gravity MEXMRS_0276 2005-01-20 2005-01-20 Target Gravity MEXMRS_0281 2005-02-09 2005-02-09 Global Gravity MEXMRS_0282 2005-02-09 2005-02-09 Global Gravity MEXMRS_0283 2005-02-10 2005-02-10 Global Gravity MEXMRS_0290 2005-02-16 2005-02-17 Global Gravity MEXMRS_0291 2005-02-17 2005-02-17 Global Gravity MEXMRS_0292 2005-02-18 2005-02-18 Global Gravity MEXMRS_0293 2005-02-18 2005-02-18 Global Gravity MEXMRS_0294 2005-02-19 2005-02-19 Global Gravity MEXMRS_0300 2005-02-21 2005-02-22 Global Gravity MEXMRS_0301 2005-02-22 2005-02-22 Global Gravity MEXMRS_0302 2005-02-23 2005-02-24 Global Gravity MEXMRS_0303 2005-02-23 2005-02-24 Global Gravity MEXMRS_0304 2005-02-24 2005-02-25 Global Gravity MEXMRS_0305 2005-02-25 2005-02-25 Global Gravity MEXMRS_0308 2005-02-26 2005-02-26 Global Gravity MEXMRS_0316 2005-03-03 2005-03-03 Global Gravity MEXMRS_0320 2005-03-08 2005-03-08 Global Gravity MEXMRS_0321 2005-03-09 2005-03-09 Global Gravity MEXMRS_0322 2005-03-11 2005-03-11 Global Gravity MEXMRS_0323 2005-03-12 2005-03-12 Global Gravity MEXMRS_0325 2005-03-13 2005-03-13 Global Gravity MEXMRS_0328 2005-03-14 2005-03-14 Global Gravity MEXMRS_0331 2005-03-16 2005-03-17 Global Gravity MEXMRS_0332 2005-03-18 2005-03-18 Global Gravity MEXMRS_0337 2005-03-21 2005-03-21 Global Gravity MEXMRS_0342 2005-03-26 2005-03-27 Global Gravity MEXMRS_0346 2005-03-28 2005-03-28 Global Gravity MEXMRS_0350 2005-04-02 2005-04-02 Global Gravity MEXMRS_0352 2005-04-04 2005-04-04 Global Gravity MEXMRS_0354 2005-04-07 2005-04-07 Global Gravity MEXMRS_0355 2005-04-08 2005-04-08 Global Gravity MEXMRS_0358 2005-04-13 2005-04-13 Global Gravity MEXMRS_0363 2005-04-16 2005-04-16 Global Gravity MEXMRS_0370 2005-04-20 2005-04-20 Global Gravity MEXMRS_0372 2005-04-22 2005-04-22 Global Gravity MEXMRS_0375 2005-04-23 2005-04-24 Global Gravity MEXMRS_0331 2005-03-16 2005-03-17 Global Gravity MEXMRS_0332 2005-03-18 2005-03-18 Global Gravity MEXMRS_0334 2005-03-20 2005-03-20 Global Gravity MEXMRS_0344 2005-03-27 2005-03-27 Global Gravity MEXMRS_0348 2005-04-01 2005-04-02 Global Gravity MEXMRS_0349 2005-04-01 2005-04-01 Global Gravity MEXMRS_0353 2005-04-04 2005-04-05 Global Gravity MEXMRS_0356 2005-04-09 2005-04-10 Global Gravity MEXMRS_0359 2005-04-13 2005-04-14 Global Gravity MEXMRS_0360 2005-04-15 2005-04-15 Global Gravity MEXMRS_0366 2005-04-17 2005-04-17 Global Gravity MEXMRS_0369 2005-04-19 2005-04-19 Global Gravity MEXMRS_0371 2005-04-20 2005-04-21 Global Gravity MEXMRS_0374 2005-04-22 2005-04-22 Global Gravity MEXMRS_0377 2005-04-23 2005-04-24 Global Gravity MEXMRS_0379 2005-04-25 2005-04-25 Global Gravity MEXMRS_0381 2005-04-26 2005-04-26 Global Gravity MEXMRS_0382 2005-04-27 2005-04-28 Global Gravity MEXMRS_0383 2005-04-29 2005-04-29 Global Gravity MEXMRS_0385 2005-04-29 2005-04-29 Global Gravity MEXMRS_0386 2005-04-30 2005-04-30 Global Gravity MEXMRS_0395 2005-06-02 2005-06-02 Global Gravity MEXMRS_0397 2005-06-03 2005-06-03 Global Gravity MEXMRS_0399 2005-06-05 2005-06-05 Global Gravity MEXMRS_0400 2005-06-06 2005-06-06 Global Gravity MEXMRS_0402 2005-06-06 2005-06-07 Global Gravity MEXMRS_0403 2005-06-08 2005-06-09 Global Gravity MEXMRS_0406 2005-06-12 2005-06-12 Global Gravity MEXMRS_0410 2005-07-04 2005-07-05 Global Gravity MEXMRS_0412 2005-07-05 2005-07-05 Global Gravity MEXMRS_0416 2005-07-09 2005-07-09 Global Gravity MEXMRS_0418 2005-07-10 2005-07-10 Global Gravity MEXMRS_0419 2005-07-11 2005-07-12 Global Gravity MEXMRS_0420 2005-07-12 2005-07-12 Global Gravity MEXMRS_0421 2005-07-13 2005-07-14 Global Gravity MEXMRS_0423 2005-07-16 2005-07-16 Target Gravity MEXMRS_0424 2005-07-16 2005-07-17 Global Gravity MEXMRS_0431 2005-06-11 2005-06-11 Global Gravity MEXMRS_0433 2005-07-21 2005-07-21 Global Gravity MEXMRS_0440 2005-07-22 2005-07-22 Occultation MEXMRS_0441 2005-07-22 2005-07-22 Global Gravity MEXMRS_0443 2005-07-23 2005-07-23 Global Gravity MEXMRS_0445 2005-07-24 2005-07-24 Occultation MEXMRS_0446 2005-07-24 2005-07-24 Global Gravity MEXMRS_0447 2005-07-25 2005-07-25 Occultation MEXMRS_0449 2005-07-25 2005-07-26 Global Gravity MEXMRS_0453 2005-07-28 2005-07-28 Global Gravity MEXMRS_0458 2005-07-29 2005-07-29 Occultation MEXMRS_0459 2005-07-29 2005-07-29 Global Gravity MEXMRS_0460 2005-07-30 2005-07-30 Occultation MEXMRS_0463 2005-08-01 2005-08-01 Occultation MEXMRS_0464 2005-08-01 2005-08-02 Global Gravity MEXMRS_0465 2005-08-02 2005-08-02 Occultation MEXMRS_0466 2005-08-02 2005-08-02 Global Gravity MEXMRS_0471 2005-08-04 2005-08-04 Occultation MEXMRS_0472 2005-08-05 2005-08-05 Occultation MEXMRS_0473 2005-08-05 2005-08-05 Occultation MEXMRS_0477 2005-08-06 2005-08-06 Global Gravity MEXMRS_0483 2005-08-07 2005-08-07 Occultation MEXMRS_0485 2005-08-08 2005-08-08 Occultation MEXMRS_0486 2005-08-08 2005-08-09 Global Gravity MEXMRS_0487 2005-08-09 2005-08-09 Occultation MEXMRS_0488 2005-08-08 2005-08-08 Occultation MEXMRS_0489 2005-08-10 2005-08-10 Occultation MEXMRS_0490 2005-08-10 2005-08-11 Global Gravity MEXMRS_0492 2005-08-11 2005-08-11 Global Gravity MEXMRS_0493 2005-08-11 2005-08-12 Occultation MEXMRS_0494 2005-08-12 2005-08-12 Occultation MEXMRS_0495 2005-08-13 2005-08-13 Occultation MEXMRS_0499 2005-08-15 2005-08-15 Target Gravity MEXMRS_0501 2005-08-17 2005-08-17 Occultation MEXMRS_0502 2005-08-17 2005-08-17 Target Gravity MEXMRS_0504 2005-08-18 2005-08-18 Occultation MEXMRS_0505 2005-08-18 2005-08-19 Occultation MEXMRS_0506 2005-08-20 2005-08-20 Occultation MEXMRS_0507 2005-08-21 2005-08-21 Occultation MEXMRS_0508 2005-08-21 2005-08-22 Target Gravity MEXMRS_0510 2005-08-22 2005-08-22 Target Gravity MEXMRS_0511 2005-08-22 2005-08-22 Occultation MEXMRS_0513 2005-08-23 2005-08-23 Target Gravity MEXMRS_0514 2005-08-24 2005-08-24 Occultation MEXMRS_0516 2005-08-24 2005-08-24 Occultation MEXMRS_0519 2005-08-25 2005-08-26 Occultation MEXMRS_0523 2005-08-26 2005-08-26 Occultation MEXMRS_0524 2005-08-27 2005-08-27 Target Gravity MEXMRS_0526 2005-08-27 2005-08-27 Occultation MEXMRS_0529 2005-08-28 2005-08-28 Occultation MEXMRS_0531 2005-08-29 2005-08-29 Occultation MEXMRS_0532 2005-08-30 2005-08-30 Occultation MEXMRS_0534 2005-08-31 2005-08-31 Occultation MEXMRS_0535 2005-09-01 2005-09-01 Occultation MEXMRS_0536 2005-09-01 2005-09-01 Occultation MEXMRS_0537 2005-09-02 2005-09-02 Occultation MEXMRS_0543 2005-09-04 2005-09-04 Occultation MEXMRS_0546 2005-09-05 2005-09-05 Occultation MEXMRS_0548 2005-09-06 2005-09-06 Occultation MEXMRS_0550 2005-09-07 2005-09-07 Occultation MEXMRS_0552 2005-09-08 2005-09-08 Occultation MEXMRS_0553 2005-09-08 2005-09-08 Target Gravity MEXMRS_0554 2005-09-09 2005-09-09 Occultation MEXMRS_0557 2005-09-10 2005-09-11 Occultation MEXMRS_0558 2005-09-12 2005-09-12 Occultation MEXMRS_0559 2005-09-13 2005-09-13 Occultation MEXMRS_0560 2005-09-13 2005-09-13 Target Gravity MEXMRS_0561 2005-09-14 2005-09-14 Occultation MEXMRS_0562 2005-09-15 2005-09-15 Occultation MEXMRS_0563 2005-09-16 2005-09-16 Occultation MEXMRS_0564 2005-09-17 2005-09-17 Occultation MEXMRS_0565 2005-09-18 2005-09-18 Occultation MEXMRS_0569 2005-09-24 2005-09-24 Occultation MEXMRS_0570 2005-09-25 2005-09-25 Occultation MEXMRS_0571 2005-09-27 2005-09-27 Global Gravity MEXMRS_0572 2005-09-27 2005-09-27 Occultation MEXMRS_0573 2005-09-28 2005-09-28 Global Gravity MEXMRS_0574 2005-09-28 2005-09-28 Occultation MEXMRS_0576 2005-10-01 2005-10-01 Occultation MEXMRS_0580 2005-10-09 2005-10-09 Global Gravity MEXMRS_0581 2005-10-10 2005-10-10 Global Gravity MEXMRS_0583 2005-10-14 2005-10-14 Target Gravity MEXMRS_0584 2005-10-17 2005-10-17 Target Gravity MEXMRS_0588 2005-10-31 2005-10-31 Global Gravity MEXMRS_0590 2005-11-08 2005-11-08 Global Gravity MEXMRS_0592 2005-11-10 2005-11-10 Global Gravity MEXMRS_0597 2005-11-16 2005-11-16 Global Gravity MEXMRS_0598 2005-11-17 2005-11-17 Global Gravity MEXMRS_0599 2005-11-17 2005-11-17 Global Gravity MEXMRS_0602 2005-11-19 2005-11-19 Global Gravity MEXMRS_0603 2005-11-19 2005-11-19 Occultation MEXMRS_0604 2005-11-20 2005-11-20 Global Gravity MEXMRS_0605 2005-11-20 2005-11-20 Occultation MEXMRS_0607 2005-11-21 2005-11-21 Global Gravity Most notably it was discovered that the incoming Doppler data from ESA and thus level 1a and level 1b Doppler data may contain a wrong uplink frequency. This problem was identified during processing and corrected for level 2 data. If this problem occurred the folder UPLINK_FREQ_CORRECT will be generated in the CALIB directory containing information which raw files were effected and where to find the corrected data. It was discovered later in the mission that for IFMS the file naming convention of AGC raw files was crossed since beginning of the mission. In fact AGC1 refers to D2 and AG2 refers to D1 and not the other way around as it should be. Consequently the AGC files were swapped during the whole processing. Quality of data was affected by anomalous conditions. Examples include: Open-Loop Data Anomalies ------------------------------ CLOSED-LOOP DATA ANOMALIES --------------------------------------------------- Other Notes ----------- Limitations =========== The limitations in this data set follow from the quality of the execution, which is described above under Data Coverage and Quality. ACRONYMS ======== AAS Atmosphere Analysis Software AGC Automatic Gain Control AMMOS Advanced Multi-Mission Operations System ATDF Archival Tracking Data Files ADC Analog to Digital Converter BWG Beam Wave Guide ground station (DSN) CALI calibration file CHDO Compressed Header Data Object CVP Commissioning DDS Data Distribution System DSMS Deep Space Mission System DSN Deep Space Network ESA European Space Agency ENT Extended Mission ESOC European Space Operations Centre G/S Ground Station HEF High Efficiancy ground station (DSN) IFMS Intermediate Frequency Modulation System JPL Jet Propulsion Labatory MEX Mars Express MGS Mars Global Surveyor NEA NEAR NNO New Norcia Station (Perth) ODF Orbit Data File ODR Original Data Record PDS Planetary Data System PRM Prime Mission ROS Rosetta RSI Radio Science Investigation RSR Radio Science Receiver S/C Spacecraft SFDU Standard Formatted Data Unit TNF Tracking and Navigation File ULS Ulysses UniBw Universitaet der Bundeswehr in Muenchen " END_OBJECT = DATA_SET_INFORMATION OBJECT = DATA_SET_TARGET TARGET_NAME = MARS TARGET_TYPE = PLANET END_OBJECT = DATA_SET_TARGET OBJECT = DATA_SET_HOST INSTRUMENT_HOST_ID = MEX INSTRUMENT_ID = MRS END_OBJECT = DATA_SET_HOST OBJECT = DATA_SET_MISSION MISSION_NAME = "MARS EXPRESS" END_OBJECT = DATA_SET_MISSION OBJECT = DATA_SET_REFERENCE_INFORMATION REFERENCE_KEY_ID = "MARSUSERMANUAL2004" END_OBJECT = DATA_SET_REFERENCE_INFORMATION OBJECT = DATA_SET_REFERENCE_INFORMATION REFERENCE_KEY_ID = "MARSFNC2004" END_OBJECT = DATA_SET_REFERENCE_INFORMATION OBJECT = DATA_SET_REFERENCE_INFORMATION REFERENCE_KEY_ID = "JPLD-16765" END_OBJECT = DATA_SET_REFERENCE_INFORMATION OBJECT = DATA_SET_REFERENCE_INFORMATION REFERENCE_KEY_ID = "DSNTRK-2-18" END_OBJECT = DATA_SET_REFERENCE_INFORMATION OBJECT = DATA_SET_REFERENCE_INFORMATION REFERENCE_KEY_ID = "MANNUCCIETAL1998" END_OBJECT = DATA_SET_REFERENCE_INFORMATION END_OBJECT = DATA_SET END