GRAIL
ARCHIVE VOLUME
SOFTWARE INTERFACE SPECIFICATION
Version 2.0
May 3, 2016
Daniel Kahan
TABLE OF CONTENTS........................................................... 2
TABLES...................................................................... 3
FIGURES..................................................................... 3
DOCUMENT CHANGE LOG......................................................... 4
ACRONYMS AND ABBREVIATIONS.................................................. 5
GLOSSARY.................................................................... 7
1. Introduction............................................................. 8
1.1. Purpose and Scope.................................................... 8
1.2. Document Overview.................................................... 8
1.3. Applicable Documents and Constraints................................. 8
1.4. Relationships with Other Interfaces.................................. 8
2. Archive Volume Contents.................................................. 9
2.1 Processing Levels..................................................... 9
2.2 Data Sets and Volumes................................................ 10
2.2.1 LGRS Experiment Data Record (EDR).............................. 10
2.2.2 LGRS Calibrated Data Record (CDR).............................. 13
2.2.3 RSS Experiment Data Record (EDR)............................... 17
2.2.4 LGRS Reduced Data Record (RDR)................................. 20
2.3. ROOT Directory Contents............................................. 24
2.4. DATA Directory Contents and Naming.................................. 25
2.5. INDEX Directory Contents............................................ 29
2.6. DOCUMENT Directory Contents......................................... 30
2.7. CATALOG Directory Contents.......................................... 36
2.8. Software Directory Contents......................................... 37
2.9. CALIB Directory Contents............................................ 38
2.10. EXTRAS Directory Contents.......................................... 38
3. Archive Volume Format................................................... 40
3.1. File Formats........................................................ 40
3.1.1. Text Files.................................................... 40
3.1.2. Tabular File Format........................................... 40
3.1.3. PDS Label Format.............................................. 40
3.1.4. Catalog File Format........................................... 41
3.1.5. Science Data File Formats..................................... 41
3.1.6 Documents...................................................... 41
4. Archive Volume Generation............................................... 42
4.1. Data Transfer and Validation Methods................................ 42
4.2. Data Product Sizes and Delivery Rates............................... 42
4.3. Backup and Duplicates............................................... 44
4.4. Labeling and Identification......................................... 44
5. Support Staff and Cognizant Persons..................................... 45
Table 2-1. Processing Levels................................................ 9
Table 2-2. Data Sets and Volumes........................................... 10
Table 2-3. ROOT Directory Contents......................................... 24
Table 2-4. DATA Directory Contents by Data Set............................. 25
Table 2-5. INDEX Directory Contents........................................ 29
Table 2-6. INDEX Table Contents............................................ 29
Table 2-7. DOCUMENT Directory Contents..................................... 30
Table 2-8. CATALOG Directory Contents...................................... 36
Table 2-9. SOFTWARE Directory Contents..................................... 37
Table 2-10. CALIB Directory Contents....................................... 38
Table 2-11. EXTRAS Directory Contents...................................... 38
Table 4-1. Product Sizes and Delivery Rates................................ 42
Figure 2-1. GRAIL-L-LGRS-2-EDR-V1.0 (GRAIL_0001).........................11
Figure 2-2. GRAIL-L-LGRS-3-CDR-V1.0 (GRAIL_0101).........................13
Figure 2-3. GRAIL-L-RSS-2-EDR-V1.0 (GRAIL_0201)..........................17
Figure 2-4. GRAIL-L-LGRS-5-RDR-V1.0 (GRAIL_1001).........................20
|
Change |
Date |
Affected Portions |
|
Version 1.0 submitted for peer review. |
2012-09-27 |
Various |
|
Version 1.1 original release version. |
2012-12-13 |
Various |
|
Version 1.2 initial ADR/RDR team review. |
2013-03-11 |
Various |
|
Version 1.3 updated for extended mission. |
2013-05-09 |
Section 4.2 |
|
Version 1.4 additional release 2 updates. |
2013-06-10 |
Various |
|
Version 1.5 added DSMAP.CAT to RDR catalog directory contents. Submitted for RDR peer review. |
2013-06-18 |
Figure 2-4, Section 2.7 |
|
Version 1.6 RDR peer review revisions. |
2013-08-23 |
Sections 2.2.1, 2.6, 3.1.3, Table 2-4 |
|
Version 1.7 added EXTRAS directory. |
2013-09-13 |
Section 2.2.4, 2.10 |
|
Version 1.8 updated for Version 4 data |
2014-04-01 |
Sections 2.2, 2.4, and 4.2 |
|
Version 1.9 updated for PDS release 5 |
2014-06-10 |
Figure 2-4, Section 2.10 |
|
Version 2.0 revised RDR extras and catalog directory contents. |
2016-05-03 |
Figure 2-4, Tables 2-8, 2-11 |
|
ASCII |
American Standard Code for Information Interchange |
|
BTC |
Binary Time Code |
|
CD-ROM |
Compact Disk - Read-Only Memory |
|
CD-WO |
Write-Once Compact Disk |
|
CDR |
Calibrated Data Record |
|
CODMAC |
Committee on Data Management, Archiving, and Computation |
|
CRC |
Cyclical Redundancy Code |
|
DRF |
Data Record File |
|
DSN |
Deep Space Network |
|
EDA |
End of Data Acquisition |
|
EDR |
Experiment Data Record |
|
EOP |
Earth Orientation Parameters |
|
ICD |
Interface Control Document |
|
ION |
Ionospheric Media Calibration |
|
ISO |
International Standards Organization |
|
GRAIL |
Gravity Recovery and Interior Laboratory |
|
HTML |
HyperText Markup Language |
|
JPL |
Jet Propulsion Laboratory |
|
LGRS |
Lunar Gravity Ranging System |
|
NAIF |
Navigation and Ancillary Information Facility |
|
ODF |
Orbit Data File |
|
ODL |
Object Description Language |
|
PDS |
Planetary Data System |
|
|
Portable Document Format |
|
RDR |
Reduced Data Record |
|
RSDMAP |
Radio Science Digital Map |
|
RSR |
Radio Science Receiver |
|
RSS |
Radio Science Systems |
|
RTC |
Real Time Clock |
|
SDS |
Science Data System |
|
SFDU |
Standard Formatted Data Unit |
|
SHADR |
Spherical Harmonic ASCII Data Record |
|
SHBDR |
Spherical Harmonic Binary Data Record |
|
SIS |
Software Interface Specification |
|
SLP |
Signaling Link Protocol |
|
SPICE |
S- Spacecraft ephemeris, given as a function of time. P- Planet, satellite, comet, or asteroid ephemerides, or more generally, location of any target body, given as a function of time. The P kernel also logically includes certain physical, dynamical and cartographic constants for target bodies, such as size and shape specifications, and orientation of the spin axis and prime meridian. I- - Instrument description kernel, containing descriptive data peculiar to a particular scientific instrument, such as field-of-view size, shape and orientation parameters. C- Pointing kernel, containing a transformation, traditionally called the C-matrix, which provides time-tagged pointing (orientation) angles for a spacecraft structure upon which science instruments are mounted. May also include angular rate data. E- Events kernel, summarizing mission activities - both planned and unanticipated. Events data are contained in the SPICE EK file set, which consists of three components: Science Plans, Sequences, and Notes. |
|
TBD |
To Be Determined |
|
TDB |
Barycentric Dynamical Time |
|
TDM |
Tracking Data Message |
|
TNF |
Tracking and Navigation File |
|
TRO |
Tropospheric Media Calibration |
|
TRSR |
Turbo Rogue Space Receiver |
|
TTS |
Time Transfer System |
|
UTC |
Coordinated Universal Time |
|
WEA |
Weather |
Archive – An archive consists of one or more data sets. An archive is a logical construct independent of the medium on which it is stored.
Archive Volume, Archive Volume Set – A volume is a unit of media on which data products are stored; for example, one CD-ROM or DVD-ROM. An archive volume is a volume containing all or part of an archive—-that is, data products plus documentation and ancillary files. When an archive spans multiple volumes, they are called an archive volume set. Usually the documentation and some ancillary files are repeated on each volume of the set, so that a single volume can be used alone.
Catalog Information – Descriptive information about a data set (e.g. mission description, spacecraft description, instrument description), expressed in Object Description Language (ODL) which is suitable for loading into a PDS catalog.
Data Product – A labeled grouping of data resulting from a scientific observation. The product label identifies, describes, and defines the structure of the data. Examples of data products are a planetary image, a spectrum, or a time series, including the label in each case.
Data Set – An accumulation of data products that have some common theme.
Standard Data Product – A data product generated in a predefined way using well-understood procedures, processed in "pipeline" fashion. Data products that are generated in a nonstandard way are sometimes called special data products.
This Software Interface Specification (SIS) will be used by those who wish to understand the format and content of the GRAIL Archive. Typically, these individuals would be software engineers, data analysts, or planetary scientists.
The specifications in this document apply to all archive volumes that are generated by the GRAIL Project.
This archive contains data products from the Gravity Recovery and Interior Laboratory (GRAIL) Mission. The primary objective of the GRAIL mission is to obtain accurate global models for the mean components of the Moon's gravity field. This objective will be achieved by making measurements of inter-satellite range and its derivative for co-planar, low altitude, near-polar orbiting satellites, using the Lunar Gravity Ranging System (LGRS) instrumentation, which includes the Radio Science System (RSS). All raw data transmitted by the twin spacecraft are collected by the Deep Space Network (DSN) and processed to higher level products by the GRAIL Science Data System (SDS) at JPL and GRAIL Science Team members at their respective institutions.
This Software Interface Specification (SIS) describes the format, content, and generation of the GRAIL archive volumes. Section 2, Archive Volume Contents, describes the structure of the archive volumes and the contents of each file. Section 3, Archive Volume Format, describes the file formats used on the archive volumes. Section 4, Archive Volume Generation, describes the procedure for transferring data products to the Planetary Data System (PDS). Finally, Section 5, Support Staff and Cognizant Persons, lists the individuals responsible for generating the archive volumes.
This Archive Volume SIS is intended to be consistent with the following documents:
1. GRAIL Science Team and PDS Geosciences Node Interface Control Document (ICD).
2. Data Product Software Interface Specification (DPSIS.PDF) and other software interface specifications referenced therein.
3. Planetary Data System Standards Reference, February 27, 2009, Version 3.8. JPL D-7669, Part 2.
This Archive Volume SIS could be affected by changes to the design of the GRAIL standard data products [2].
This section describes the contents of the GRAIL Archive volumes, including the file names, file contents, file types; and it identifies the organization responsible for providing each file.
The GRAIL Science Data System (SDS) uses NASA processing levels, which are defined in Table 2-1. Data set IDs use the processing levels defined by the Committee on Data Management, Archiving, and Computation (CODMAC), also given in Table 2-1.
|
NASA |
CODMAC |
Description |
|
Packet data |
Raw - Level 1 |
Telemetry data with data embedded. |
|
Level-0 |
Edited - Level 2 |
Corrected for telemetry errors and split or decommutated into a data set for a given instrument. Sometimes called Experimental Data Record. Data are also tagged with time and location of acquisition. |
|
Level 1-A |
Calibrated - Level 3 |
Edited data that are still in units produced by instrument, but that have been corrected so that values are expressed in or are proportional to some physical unit such as radiance. No resampling, so edited data can be reconstructed. |
|
Level 1-B |
Resampled - Level 4 |
Data that have been resampled in the time or space domains in such a way that the original edited data cannot be reconstructed. Could be calibrated in addition to being resampled. |
|
Level 2 |
Derived - Level 5 |
Derived results, as maps, reports, graphics, etc. |
|
|
Ancillary – Level 6 |
Nonscience data needed to generate calibrated or resampled data sets. Consists of instrument gains, offsets; pointing information for scan platforms, etc. |
There are four data sets in this archive, entitled LGRS EDR, LGRS CDR, RSS EDR, and LGRS RDR. Each has been assigned to a distinct volume GRAIL_xxxx, as shown in Table 2-2.
Table 2-2. Data Sets and Volumes
|
Data Set (Volume ID) |
Description |
Data Volume (GB) |
NASA Processing Level |
|
LGRS EDR
(GRAIL_0001) |
Raw science data in time order with duplicates and transmission errors removed |
26 |
0 |
|
LGRS CDR (GRAIL_0101) |
Calibrated and resampled data |
45 |
1A & 1B |
|
RSS EDR
(GRAIL_0201) |
Raw Radio Science data (includes DSN Doppler tracking data, troposphere and ionosphere media calibrations) |
137 |
0 |
|
LGRS RDR
(GRAIL_1001) |
Lunar gravitation field (includes gravity coefficient and covariance matrices, free air gravity map, geoid and uncertainty maps, and Bouguer gravity map). SPICE geometry and navigation kernels created by the GRAIL SDS |
45 |
2 |
The LGRS EDR data set (Level 0, Figure 2-1) contains raw data in time order with duplicates and transmission errors removed. The root directory is divided into subdirectories by start date, wherein each subdirectory contains all data products for that date. These data are archived mainly for the sake of completeness, as they have already been processed to Level 1A in the LGRS CDR data set by the SDS team. However, the Software directory contains examples of utilities or application programs to aid the user in viewing or extracting information from the NASA Level-0 data product files if desired.
|===================================================================| | |
| Figure 2-1. GRAIL-L-LGRS-2-EDR-V1.0 (GRAIL_0001) |
| | |===================================================================| | | | root | | | | | |- AAREADME.TXT | | |- ERRATA.TXT | | |- VOLDESC.CAT | | | | | |- [CATALOG] | | | |- CATINFO.TXT | | | |- MISSION.CAT || | |- INSTHOST_A.CAT |
| | |- INSTHOST_B.CAT |
| | |- LGRS_A_INST.CAT |
| | |- LGRS_B_INST.CAT |
| | |- REF.CAT | | | |- PERSON.CAT | | | `- LGRS_EDR_DS.CAT | | | | | |- [DOCUMENT] | | | |- DOCINFO.TXT | | | |- ARCHSIS.HTM | | | |- ARCHSIS.PDF | | | |- ARCHSIS.LBL || | |- DPSIS.HTM |
| | |- DPSIS.PDF | | | |- DPSIS.LBL | | | |- [DPSIS_IMAGES] | | | | |- IMAGE001.JPG | | | | |- IMAGE002.JPG | | | | |- IMAGE003.GIF | | | | |- IMAGE004.JPG || | | |- IMAGE005.GIF |
| | | |- IMAGE006.JPG | | | | |- IMAGE007.JPG | | | | |- IMAGE008.JPG | | | | |- IMAGE009.JPG || | | |- IMAGE010.JPG |
| | |- 090_REVC_1.TXT | | | |- 090_REVC_1.PDF | | | |- 090_REVC_1.LBL | | | |- 0159_SCIENCE_L5.TXT | | | |- 0159_SCIENCE_L5.LBL | | | |- [0159_SCIENCE_L5_IMAGES] | | | | |- 0159_SCIENCE2_1.JPG | | | | |- 0159_SCIENCE2_2.JPG | | | | |- 0159_SCIENCE2_3.JPG | | | | |- 0159_SCIENCE2_4.JPG | | | | |- 0159_SCIENCE2_5.JPG | | | | |- 0159_SCIENCE2_6.JPG | | | | |- 0159_SCIENCE2_7.JPG | | | |- 0161_TELECOMM_L5_8.TXT | | | |- 0161_TELECOMM_L5_8.PDF | | | |- 0161_TELECOMM_L5_8.LBL | | | |- 0171_TELECOMM_NJPL_L5.TXT | | | |- 0171_TELECOMM_NJPL_L5.PDF | | | |- 0171_TELECOMM_NJPL_L5.LBL | | | |- 0172_TELECOMM_CHDO_REVE_L5.TXT | | | |- 0172_TELECOMM_CHDO_REVE_L5.LBL | | | |- ATBD.PDF | | | |- ATBD.HTM | | | |- [ATBD_IMAGES] | | | | |- IMAGE001.PNG - IMAGE052.PNG | | | |- ATBD.LBL | | | |- BLACKJACKDLP.TXT | | | |- BLACKJACKDLP.PDF | | | |- BLACKJACKDLP.LBL | | | |- DSN006_MEDIALCAL_REV2.HTM | | | |- DSN006_MEDIALCAL_REV2.LBL || | |- FORTNIGHT_CALCULATION.HTM |
| | |- FORTNIGHT_CALCULATION.PDF |
| | |- FORTNIGHT_CALCULATION.LBL |
| | |- GPA_TD_D_71987_REVE.TXT | | | |- GPA_TD_D_71987_REVE.PDF | | | |- GPA_TD_D_71987_REVE.LBL || | |- GRAIL_TIMING.HTM |
| | |- GRAIL_TIMING.PDF |
| | |- GRAIL_TIMING.LBL |
| | |- [GRAIL_TIMING_IMAGES] |
| | | |- GRAIL_TIMING_0.JPG |
| | | |- GRAIL_TIMING_1.JPG |
| | | |- GRAIL_TIMING_2.JPG |
| | | |- GRAIL_TIMING_3.JPG |
| | |- LIB_10_GRAIL_COORD_TRANS_REV1.TXT | | | |- LIB_10_GRAIL_COORD_TRANS_REV1.PDF | | | |- LIB_10_GRAIL_COORD_TRANS_REV1.LBL | | | |- NAV023_ODF_2_18_REV3.HTM | | | |- NAV023_ODF_2_18_REV3_FIG2_1.JPG | | | |- NAV023_ODF_2_18_REV3.LBL | | | |- ONCE_UPON_A_FORTNIGHT.TXT | | | |- ONCE_UPON_A_FORTNIGHT.PDF | | | |- ONCE_UPON_A_FORTNIGHT.LBL | | | |- RSDMAP.HTM | | | |- RSDMAP.LBL | | | |- SHADR.HTM | | | |- SHADR.LBL | | | |- SHBDR.HTM | | | |- SHBDR.LBL | | | |- SPK_MM_SIS.HTM | | | |- SPK_MM_SIS.LBL | | | |- T2_24_L5.HTM | | | |- T2_24_L5.LBL | | | |- [T2_24_L5_IMAGES] | | | | |- T2_24_IMG_0.JPG | | | | |- T2_24_IMG_1.JPG | | | | |- T2_24_IMG_2.JPG | | | |- TNFSIS.TXT | | | |- TNFSIS.LBL | | | |- TRACKINGDATAMESSAGESTANDARD.TXT | | | |- TRACKINGDATAMESSAGESTANDARD.PDF | | | |- TRACKINGDATAMESSAGESTANDARD.LBL | | | |- TRK_2_21_950831.TXT | | | `- TRK_2_21_950831.LBL | | | | | |- [INDEX] | | | |- INDXINFO.TXT | | | |- INDEX.LBL || | `- INDEX.TAB |
| | |
| |- [SOFTWARE] | | | |- SOFTINFO.TXT | | | |- SOFTWARE.ZIP | | | `- SOFTWARE.LBL | | | | | |- [CALIB] | | | |- CALINFO.TXT || | |- GRAILCOMPONENTS.TXT |
| | `- GRAILCOMPONENTS.LBL | | | || |- [LEVEL_0] |
| | |- [YYYY_MM_DD] |
| | |- Dtc00_YYYY_MM_DD_S_RL.ext |
| | |- EHK00_YYYY_MM_DD_S_RL.EXT |
| | |- ltb00_YYYY_MM_DD_S_RL.ext |
| | |- MAS00_YYYY_MM_DD_S_RL.EXT |
| | |- s7200_YYYY_MM_DD_S_RL.ext |
| | |- s7300_YYYY_MM_DD_S_RL.ext |
| | |- SAE00_YYYY_MM_DD_S_RL.EXT |
| | |- SCA00_YYYY_MM_DD_S_RL.EXT |
| | |- stc00_YYYY_MM_DD_S_RL.ext |
| | |- TDE00_YYYY_MM_DD_NNNNN_S_RL.EXT || | |- THR00_YYYY_MM_DD_S_RL.EXT |
| | `- WRS00_YYYY_MM_DD_S_RL.EXT || | |
| `- [EXTRAS] || | |- EXTRINFO.TXT |
| | `- FORTNIGHT_CALCULATION.XLS |
|===================================================================|
The LGRS CDR data set (Figure 2-2) contains (calibrated and resampled) Level 1A and 1B science data from each Lunar Gravity Ranging System. It is divided into subdirectories by level and then by date, wherein each subdirectory contains all data products for that level and date.
|===================================================================| | |
| Figure 2-2. GRAIL-L-LGRS-3-CDR-V1.0 (GRAIL_0101) |
| | |===================================================================| | | | root | | | | | |- AAREADME.TXT | | |- ERRATA.TXT | | |- VOLDESC.CAT | | | | | |- [CATALOG] | | | |- CATINFO.TXT | | | |- MISSION.CAT || | |- INSTHOST_A.CAT |
| | |- INSTHOST_B.CAT |
| | |- LGRS_A_INST.CAT |
| | |- LGRS_B_INST.CAT |
| | |- REF.CAT | | | |- PERSON.CAT | | | `- LGRS_CDR_DS.CAT | | | | | |- [DOCUMENT] | | | |- DOCINFO.TXT | | | |- ARCHSIS.HTM | | | |- ARCHSIS.PDF | | | |- ARCHSIS.LBL | | | |- DPSIS.HTM | | | |- DPSIS.PDF | | | |- DPSIS.LBL | | | |- [DPSIS_IMAGES] | | | | |- IMAGE001.JPG | | | | |- IMAGE002.JPG | | | | |- IMAGE003.GIF | | | | |- IMAGE004.JPG || | | |- IMAGE005.GIF |
| | | |- IMAGE006.JPG | | | | |- IMAGE007.JPG | | | | |- IMAGE008.JPG | | | | |- IMAGE009.JPG || | | |- IMAGE010.JPG |
| | |- 090_REVC_1.TXT | | | |- 090_REVC_1.PDF | | | |- 090_REVC_1.LBL | | | |- 0159_SCIENCE_L5.TXT | | | |- 0159_SCIENCE_L5.LBL | | | |- [0159_SCIENCE_L5_IMAGES] | | | | |- 0159_SCIENCE2_1.JPG | | | | |- 0159_SCIENCE2_2.JPG | | | | |- 0159_SCIENCE2_3.JPG | | | | |- 0159_SCIENCE2_4.JPG | | | | |- 0159_SCIENCE2_5.JPG | | | | |- 0159_SCIENCE2_6.JPG | | | | |- 0159_SCIENCE2_7.JPG | | | |- 0161_TELECOMM_L5_8.TXT | | | |- 0161_TELECOMM_L5_8.PDF | | | |- 0161_TELECOMM_L5_8.LBL | | | |- 0171_TELECOMM_NJPL_L5.TXT | | | |- 0171_TELECOMM_NJPL_L5.PDF | | | |- 0171_TELECOMM_NJPL_L5.LBL | | | |- 0172_TELECOMM_CHDO_REVE_L5.TXT | | | |- 0172_TELECOMM_CHDO_REVE_L5.LBL | | | |- ATBD.PDF | | | |- ATBD.HTM | | | |- [ATBD_IMAGES] | | | | |- IMAGE001.PNG - IMAGE052.PNG | | | |- ATBD.LBL | | | |- BLACKJACKDLP.TXT | | | |- BLACKJACKDLP.PDF | | | |- BLACKJACKDLP.LBL | | | |- DSN006_MEDIALCAL_REV2.HTM | | | |- DSN006_MEDIALCAL_REV2.LBL || | |- FORTNIGHT_CALCULATION.HTM |
| | |- FORTNIGHT_CALCULATION.PDF |
| | |- FORTNIGHT_CALCULATION.LBL |
| | |- GPA_TD_D_71987_REVE.TXT | | | |- GPA_TD_D_71987_REVE.PDF | | | |- GPA_TD_D_71987_REVE.LBL || | |- GRAIL_TIMING.HTM |
| | |- GRAIL_TIMING.PDF |
| | |- GRAIL_TIMING.LBL |
| | |- [GRAIL_TIMING_IMAGES] |
| | | |- GRAIL_TIMING_0.JPG |
| | | |- GRAIL_TIMING_1.JPG |
| | | |- GRAIL_TIMING_2.JPG |
| | | |- GRAIL_TIMING_3.JPG |
| | |- LIB_10_GRAIL_COORD_TRANS_REV1.TXT | | | |- LIB_10_GRAIL_COORD_TRANS_REV1.PDF | | | |- LIB_10_GRAIL_COORD_TRANS_REV1.LBL | | | |- NAV023_ODF_2_18_REV3.HTM | | | |- NAV023_ODF_2_18_REV3_FIG2_1.JPG | | | |- NAV023_ODF_2_18_REV3.LBL | | | |- ONCE_UPON_A_FORTNIGHT.TXT | | | |- ONCE_UPON_A_FORTNIGHT.PDF | | | |- ONCE_UPON_A_FORTNIGHT.LBL | | | |- RSDMAP.HTM | | | |- RSDMAP.LBL | | | |- SHADR.HTM | | | |- SHADR.LBL | | | |- SHBDR.HTM | | | |- SHBDR.LBL | | | |- SPK_MM_SIS.HTM | | | |- SPK_MM_SIS.LBL | | | |- T2_24_L5.HTM | | | |- T2_24_L5.LBL | | | |- [T2_24_L5_IMAGES] | | | | |- T2_24_IMG_0.JPG | | | | |- T2_24_IMG_1.JPG | | | | |- T2_24_IMG_2.JPG | | | |- TNFSIS.TXT | | | |- TNFSIS.LBL | | | |- TRACKINGDATAMESSAGESTANDARD.TXT | | | |- TRACKINGDATAMESSAGESTANDARD.PDF | | | |- TRACKINGDATAMESSAGESTANDARD.LBL | | | |- TRK_2_21_950831.TXT | | | `- TRK_2_21_950831.LBL | | | | | |- [INDEX] | | | |- INDXINFO.TXT | | | |- INDEX.LBL | | | `- INDEX.TAB | | | | | |- [CALIB] | | | |- CALINFO.TXT || | |- GRAILCOMPONENTS.TXT |
| | `- GRAILCOMPONENTS.LBL | | | || |- [LEVEL_1A] |
| | |- [YYYY_MM_DD] | | | | |- clk1a_YYYY_MM_DD_S_RL.EXT | | | | |- del1A_YYYY_MM_DD_S_RL.EXT | | | | |- ehk1A_YYYY_MM_DD_S_RL.EXT | | | | |- ihk1A_YYYY_MM_DD_S_RL.EXT | | | | |- ihs1A_YYYY_MM_DD_S_RL.EXT | | | | |- ilg1A_YYYY_MM_DD_S_RL.EXT || | | |- kbr1A_YYYY_MM_DD_S_RL.EXT |
| | | |- LTM1A_YYYY_MM_DD_S_RL.EXT | | | | |- MAS1A_YYYY_MM_DD_S_RL.EXT | | | | |- PCI1A_YYYY_MM_DD_S_RL.EXT | | | | |- PLT1A_YYYY_MM_DD_S_RL.EXT | | | | |- PPS1A_YYYY_MM_DD_S_RL.EXT | | | | |- REL1A_YYYY_MM_DD_S_RL.EXT | | | | |- SAE1A_YYYY_MM_DD_S_RL.EXT | | | | |- SBR1A_YYYY_MM_DD_S_RL.EXT | | | | |- SCA1A_YYYY_MM_DD_S_RL.EXT | | | | |- SNV1A_YYYY_MM_DD_S_RL.EXT | | | | |- TC11A_YYYY_MM_DD_S_RL.EXT | | | | |- TC21A_YYYY_MM_DD_S_RL.EXT | | | | |- TC31A_YYYY_MM_DD_S_RL.EXT | | | | |- TC41A_YYYY_MM_DD_S_RL.EXT | | | | |- TC51A_YYYY_MM_DD_S_RL.EXT | | | | |- TC61A_YYYY_MM_DD_S_RL.EXT | | | | |- THR1A_YYYY_MM_DD_S_RL.EXT | | | | |- USO1A_YYYY_MM_DD_S_RL.EXT || | | |- VCM1A_YYYY_MM_DD_S_RL.EXT |
| | | `- WRS1A_YYYY_MM_DD_S_RL.EXT |
| | || |- [LEVEL_1B] |
| |- |- [YYYY_MM_DD] | | | | |- CLK1B_YYYY_MM_DD_S_RL.EXT | | | | |- EHK1B_YYYY_MM_DD_S_RL.EXT | | | | |- GNI1B_YYYY_MM_DD_S_RL.EXT | | | | |- GNV1B_YYYY_MM_DD_S_RL.EXT || | | |- KBR1C_YYYY_MM_DD_S_RL.EXT |
| | | |- MAS1B_YYYY_MM_DD_S_RL.EXT | | | | |- SAE1B_YYYY_MM_DD_S_RL.EXT | | | | |- SBR1B_YYYY_MM_DD_S_RL.EXT | | | | |- SCA1B_YYYY_MM_DD_S_RL.EXT | | | | |- THR1B_YYYY_MM_DD_S_RL.EXT | | | | |- USO1B_YYYY_MM_DD_S_RL.EXT | | | | |- VCM1B_YYYY_MM_DD_S_RL.EXT | | | | |- VGS1B_YYYY_MM_DD_S_RL.EXT | | | | |- VGX1B_YYYY_MM_DD_S_RL.EXT || | | |- VKB1B_YYYY_MM_DD_S_RL.EXT |
| | | `- WRS1B_YYYY_MM_DD_S_RL.EXT |
| | |
| `- [EXTRAS] || | |- EXTRINFO.TXT |
| | `- FORTNIGHT_CALCULATION.XLS |
|===================================================================|
The RSS EDR data set (Figure 2-3) contains raw radio science data, which include DSN Doppler tracking data, open-loop data, media calibrations, and others. The ODF and TNF directories contain, respectively, the Orbit Data Files (ODFs) and Tracking and Navigation Files (TNFs), both of which generally contain S-Band 2-way and X-band 1-way closed-loop data. The RSR directory contains open-loop raw data collected at the DSN with the Radio Science Receiver (RSR). The XFR directory contains ASCII sky frequency data computed from the RSR data. The TDM directory contains Tracking Data Message standard files containing the observable data derived from the sky frequency data, and the OLF (Open Loop File) directory contains the same information in ODF format. The ANCILLARY directory contains Weather Files (WEA), Earth Orientation Parameters (EOP), Ionospheric Media Calibration (ION), and Tropospheric Media Calibration (TRO) data in their similarly named subdirectories.
|===================================================================| | |
| Figure 2-3. GRAIL-L-RSS-2-EDR-V1.0 (GRAIL_0201) |
| | |===================================================================| | | | root | | | | | |- AAREADME.TXT | | |- ERRATA.TXT | | |- VOLDESC.CAT | | | | | |- [CATALOG] | | | |- CATINFO.TXT | | | |- MISSION.CAT || | |- INSTHOST_A.CAT |
| | |- INSTHOST_B.CAT |
| | |- LGRS_A_INST.CAT |
| | |- LGRS_B_INST.CAT |
| | |- REF.CAT | | | |- PERSON.CAT | | | `- RSS_EDR_DS.CAT | | | | | |- [DOCUMENT] | | | |- DOCINFO.TXT || | |- ARCHSIS.HTM |
| | |- ARCHSIS.PDF | | | |- ARCHSIS.LBL | | | |- DPSIS.HTM | | | |- DPSIS.PDF | | | |- DPSIS.LBL | | | |- [DPSIS_IMAGES] | | | | |- IMAGE001.JPG | | | | |- IMAGE002.JPG | | | | |- IMAGE003.GIF | | | | |- IMAGE004.JPG || | | |- IMAGE005.GIF |
| | | |- IMAGE006.JPG | | | | |- IMAGE007.JPG | | | | |- IMAGE008.JPG | | | | |- IMAGE009.JPG || | | |- IMAGE010.JPG |
| | |- 090_REVC_1.TXT | | | |- 090_REVC_1.PDF | | | |- 090_REVC_1.LBL | | | |- 0159_SCIENCE_L5.TXT | | | |- 0159_SCIENCE_L5.LBL | | | |- [0159_SCIENCE_L5_IMAGES] | | | | |- 0159_SCIENCE2_1.JPG | | | | |- 0159_SCIENCE2_2.JPG | | | | |- 0159_SCIENCE2_3.JPG | | | | |- 0159_SCIENCE2_4.JPG | | | | |- 0159_SCIENCE2_5.JPG | | | | |- 0159_SCIENCE2_6.JPG | | | | |- 0159_SCIENCE2_7.JPG | | | |- 0161_TELECOMM_L5_8.TXT | | | |- 0161_TELECOMM_L5_8.PDF | | | |- 0161_TELECOMM_L5_8.LBL | | | |- 0171_TELECOMM_NJPL_L5.TXT | | | |- 0171_TELECOMM_NJPL_L5.PDF | | | |- 0171_TELECOMM_NJPL_L5.LBL | | | |- 0172_TELECOMM_CHDO_REVE_L5.TXT | | | |- 0172_TELECOMM_CHDO_REVE_L5.LBL | | | |- ATBD.PDF | | | |- ATBD.HTM | | | |- [ATBD_IMAGES] | | | | |- IMAGE001.PNG - IMAGE052.PNG | | | |- ATBD.LBL | | | |- BLACKJACKDLP.TXT | | | |- BLACKJACKDLP.PDF | | | |- BLACKJACKDLP.LBL | | | |- DSN006_MEDIALCAL_REV2.HTM | | | |- DSN006_MEDIALCAL_REV2.LBL || | |- FORTNIGHT_CALCULATION.HTM |
| | |- FORTNIGHT_CALCULATION.PDF |
| | |- FORTNIGHT_CALCULATION.LBL |
| | |- GPA_TD_D_71987_REVE.TXT | | | |- GPA_TD_D_71987_REVE.PDF | | | |- GPA_TD_D_71987_REVE.LBL || | |- GRAIL_TIMING.HTM |
| | |- GRAIL_TIMING.PDF |
| | |- GRAIL_TIMING.LBL |
| | |- [GRAIL_TIMING_IMAGES] |
| | | |- GRAIL_TIMING_0.JPG |
| | | |- GRAIL_TIMING_1.JPG |
| | | |- GRAIL_TIMING_2.JPG |
| | | |- GRAIL_TIMING_3.JPG |
| | |- LIB_10_GRAIL_COORD_TRANS_REV1.TXT | | | |- LIB_10_GRAIL_COORD_TRANS_REV1.PDF | | | |- LIB_10_GRAIL_COORD_TRANS_REV1.LBL | | | |- NAV023_ODF_2_18_REV3.HTM | | | |- NAV023_ODF_2_18_REV3_FIG2_1.JPG | | | |- NAV023_ODF_2_18_REV3.LBL | | | |- ONCE_UPON_A_FORTNIGHT.TXT | | | |- ONCE_UPON_A_FORTNIGHT.PDF | | | |- ONCE_UPON_A_FORTNIGHT.LBL | | | |- RSDMAP.HTM | | | |- RSDMAP.LBL | | | |- SHADR.HTM | | | |- SHADR.LBL | | | |- SHBDR.HTM | | | |- SHBDR.LBL | | | |- SPK_MM_SIS.HTM | | | |- SPK_MM_SIS.LBL | | | |- T2_24_L5.HTM | | | |- T2_24_L5.LBL | | | |- [T2_24_L5_IMAGES] | | | | |- T2_24_IMG_0.JPG | | | | |- T2_24_IMG_1.JPG | | | | |- T2_24_IMG_2.JPG | | | |- TNFSIS.TXT | | | |- TNFSIS.LBL | | | |- TRACKINGDATAMESSAGESTANDARD.TXT | | | |- TRACKINGDATAMESSAGESTANDARD.PDF | | | |- TRACKINGDATAMESSAGESTANDARD.LBL | | | |- TRK_2_21_950831.TXT | | | `- TRK_2_21_950831.LBL | | | | | |- [INDEX] | | | |- INDXINFO.TXT | | | |- INDEX.LBL | | | `- INDEX.TAB | | | | | |- [CALIB] | | | |- CALINFO.TXT || | |- GRAILCOMPONENTS.TXT |
| | `- GRAILCOMPONENTS.LBL | | | | | |- [ANCILLARY] | | | |- [EOP] | | | |- [ION] | | | |- [TRO] | | | `- [WEA] | | | || |- [BOF] |
| | || |- [BTM] |
| | | | |- [ODF] | | | | | |- [OLF] | | | | | |- [RSR] | | | | | |- [TNF] | | | | | |- [TDM] | | | || |- [XFR] |
| | | | `- [EXTRAS] || | |- EXTRINFO.TXT |
| | `- FORTNIGHT_CALCULATION.XLS |
|===================================================================|
The LGRS RDR data set (Figure 2-4) contains Level-2 lunar gravitation field data. It is divided into directories for Spherical Harmonics ASCII Data Records (SHADR), Spherical Harmonics Binary Data Records (SHBDR), and Radio Science Digital Map Products (RSDMAP). It also contains SPICE orientation and navigation kernels, specifically Spacecraft and Planetary Ephemeris Kernels (SPK). The SPK products in this data set differ from those archived by NAIF; they are created by the GRAIL SDS and make use of the LGRS to provide a more refined solution than those initially produced by GRAIL Navigation.
|===================================================================| | |
| Figure 2-4. GRAIL-L-LGRS-5-RDR-V1.0 (GRAIL_1001) |
| | |===================================================================| | | | root | | | | | |- AAREADME.TXT | | |- ERRATA.TXT | | |- VOLDESC.CAT | | | | | |- [CATALOG] | | | |- CATINFO.TXT | | | |- MISSION.CAT || | |- INSTHOST_A.CAT |
| | |- INSTHOST_B.CAT |
| | |- LGRS_A_INST.CAT |
| | |- LGRS_B_INST.CAT |
| | |- REF.CAT | | | |- PERSON.CAT | | | |- LGRS_RDR_DS.CAT || | |- DSMAP.CAT |
| | `- DSMAP_1200A.CAT |
| | | | |- [DOCUMENT] | | | |- DOCINFO.TXT | | | |- ARCHSIS.HTM | | | |- ARCHSIS.PDF | | | |- ARCHSIS.LBL | | | |- DPSIS.HTM | | | |- DPSIS.PDF | | | |- DPSIS.LBL || | |- [DPSIS_IMAGES] |
| | | |- IMAGE001.JPG | | | | |- IMAGE002.JPG | | | | |- IMAGE003.GIF | | | | |- IMAGE004.JPG || | | |- IMAGE005.GIF |
| | | |- IMAGE006.JPG | | | | |- IMAGE007.JPG | | | | |- IMAGE008.JPG | | | | |- IMAGE009.JPG || | | |- IMAGE010.JPG |
| | |- 090_REVC_1.TXT | | | |- 090_REVC_1.PDF | | | |- 090_REVC_1.LBL | | | |- 0159_SCIENCE_L5.TXT | | | |- 0159_SCIENCE_L5.LBL | | | |- [0159_SCIENCE_L5_IMAGES] | | | | |- 0159_SCIENCE2_1.JPG | | | | |- 0159_SCIENCE2_2.JPG | | | | |- 0159_SCIENCE2_3.JPG | | | | |- 0159_SCIENCE2_4.JPG | | | | |- 0159_SCIENCE2_5.JPG | | | | |- 0159_SCIENCE2_6.JPG | | | | |- 0159_SCIENCE2_7.JPG | | | |- 0161_TELECOMM_L5_8.TXT | | | |- 0161_TELECOMM_L5_8.PDF | | | |- 0161_TELECOMM_L5_8.LBL | | | |- 0171_TELECOMM_NJPL_L5.TXT | | | |- 0171_TELECOMM_NJPL_L5.PDF | | | |- 0171_TELECOMM_NJPL_L5.LBL | | | |- 0172_TELECOMM_CHDO_REVE_L5.TXT | | | |- 0172_TELECOMM_CHDO_REVE_L5.LBL | | | |- ATBD.PDF | | | |- ATBD.HTM | | | |- [ATBD_IMAGES] | | | | |- IMAGE001.PNG - IMAGE052.PNG | | | |- ATBD.LBL | | | |- BLACKJACKDLP.TXT | | | |- BLACKJACKDLP.PDF | | | |- BLACKJACKDLP.LBL | | | |- DSN006_MEDIALCAL_REV2.HTM | | | |- DSN006_MEDIALCAL_REV2.LBL || | |- FORTNIGHT_CALCULATION.HTM |
| | |- FORTNIGHT_CALCULATION.PDF |
| | |- FORTNIGHT_CALCULATION.LBL |
| | |- GPA_TD_D_71987_REVE.TXT | | | |- GPA_TD_D_71987_REVE.PDF | | | |- GPA_TD_D_71987_REVE.LBL || | |- GRAIL_TIMING.HTM |
| | |- GRAIL_TIMING.PDF |
| | |- GRAIL_TIMING.LBL |
| | |- [GRAIL_TIMING_IMAGES] |
| | | |- GRAIL_TIMING_0.JPG |
| | | |- GRAIL_TIMING_1.JPG |
| | | |- GRAIL_TIMING_2.JPG |
| | | |- GRAIL_TIMING_3.JPG |
| | |- LIB_10_GRAIL_COORD_TRANS_REV1.TXT | | | |- LIB_10_GRAIL_COORD_TRANS_REV1.PDF | | | |- LIB_10_GRAIL_COORD_TRANS_REV1.LBL | | | |- NAV023_ODF_2_18_REV3.HTM | | | |- NAV023_ODF_2_18_REV3_FIG2_1.JPG | | | |- NAV023_ODF_2_18_REV3.LBL | | | |- ONCE_UPON_A_FORTNIGHT.TXT | | | |- ONCE_UPON_A_FORTNIGHT.PDF | | | |- ONCE_UPON_A_FORTNIGHT.LBL | | | |- RSDMAP.HTM | | | |- RSDMAP.LBL | | | |- SHADR.HTM | | | |- SHADR.LBL | | | |- SHBDR.HTM | | | |- SHBDR.LBL | | | |- SPK_MM_SIS.HTM | | | |- SPK_MM_SIS.LBL | | | |- T2_24_L5.HTM | | | |- T2_24_L5.LBL | | | |- [T2_24_L5_IMAGES] | | | | |- T2_24_IMG_0.JPG | | | | |- T2_24_IMG_1.JPG | | | | |- T2_24_IMG_2.JPG | | | |- TNFSIS.TXT | | | |- TNFSIS.LBL | | | |- TRACKINGDATAMESSAGESTANDARD.TXT | | | |- TRACKINGDATAMESSAGESTANDARD.PDF | | | |- TRACKINGDATAMESSAGESTANDARD.LBL | | | |- TRK_2_21_950831.TXT | | | `- TRK_2_21_950831.LBL | | | | | |- [INDEX] | | | |- INDXINFO.TXT | | | |- INDEX.LBL | | | `- INDEX.TAB | | | | | |- [CALIB] | | | |- CALINFO.TXT || | |- GRAILCOMPONENTS.TXT |
| | `- GRAILCOMPONENTS.LBL | | | | | |- [SHADR] || | |
| |- [SHBDR] || | |
| |- [RSDMAP] || | |
| |- [SPK] || | |
| `- [EXTRAS] || | |- EXTRINFO.TXT |
| | |- [COVARIANCE] |
| | | |- *_COEFFICIENTS.ASC |
| | | |- *_COEFFICIENTS.TXT |
| | | |- *_COVARIANCE.ASC |
| | | |- *_COVARIANCE.TXT |
| | |- [CLONES] |
| | | |- [GGGRX_0900C_CLONES_0001_0100] |
| | | |- [GGGRX_0900C_CLONES_0101_0200] |
| | | |- [GGGRX_0900C_CLONES_0201_0300] |
| | | |- [GGGRX_0900C_CLONES_0301_0400] |
| | | |- [GGGRX_0900C_CLONES_0401_0500] |
| | | |- CLONE_DESCRIPTION.PDF |
| | | |- CLONE_DESCRIPTION.LBL |
| | |- [GEOTIFF] |
| | | |- GGGRX_1200A_*.TIF |
| | `- FORTNIGHT_CALCULATION.XLS |
|===================================================================|Files in the root directory (Table 2-3) of each data set include an overview of the archive, a description of the volume for the PDS Catalog, and a list of errata or comments about that particular data set.
Table 2-3. ROOT Directory Contents
|
File Name |
File Contents |
File Provided By |
|
AAREADME.TXT |
Volume content and format information |
Geosciences Node |
|
ERRATA.TXT |
A cumulative listing of comments and updates concerning the archive volume |
GRAIL Science Team |
|
VOLDESC.CAT |
A description of the contents of this volume in a PDS format readable by both humans and computers |
Geosciences Node |
Table 2-4 lists the product types provided in this archive, ordered by data set and showing the product ID as defined in [2], wherein XXX refers to a three-character mnemonic and LL specifies the data product level.
Table 2-4. DATA Directory Contents by Data Set
|
Data Set |
Product Type (XXXLL) |
Spacecraft A/B = individual products of Grail-A and Grail-B X = combined product of GRAIL A and B |
Product |
|
LGRS EDR |
DTC00 |
A/B |
Time Correlation (DRF) |
|
EHK00 |
A/B |
Spacecraft Engineering Housekeeping Data |
|
|
LTB00 |
X |
LGRS Time Bias |
|
|
MAS00 |
A/B |
Satellite Mass Data |
|
|
S7200 |
A/B |
Engineering SFDU (ID #72) |
|
|
S7300 |
A/B |
Engineering SFDU (ID #73) |
|
|
SAE00 |
A/B |
Solar Array Eclipse Data |
|
|
SCA00 |
A/B |
Star Tracker Data |
|
|
STC00 |
A/B |
Time Correlation SFDU |
|
|
TDE00 |
A/B |
Time Transfer System (TTS) Direct to Earth |
|
|
THR00 |
A/B |
Thruster Activation Data |
|
|
WRS00 |
A/B |
Wheel Rotational Speed Data |
|
|
LGRS CDR |
CLK1A |
A/B |
Smoothed On-Board Clock Solution |
|
DEL1A |
X |
inter-satellite clock offset (LGRS) eps_time = non-shifted offset eps_drift = shifted offset |
|
|
EHK1A |
A/B |
Level 1A spacecraft Engineering Housekeeping data |
|
|
IHK1A |
A/B |
LGRS Housekeeping Data |
|
|
IHS1A |
A/B |
Level 1A LGRS Health Status data (LGRS Time) |
|
|
ILG1A |
A/B |
LGRS log messages (LGRS Time) |
|
|
KBR1A |
A/B |
Ka-Band Ranging Data |
|
|
LTM1A |
A/B |
Position vector and light time between one S/C and DSN station |
|
|
MAS1A |
A/B |
Satellite Mass Data |
|
|
PCI1A |
A/B |
Level 1A Spacecraft Phase Center to Center of Gravity correction and derivatives (TDB Time) |
|
|
PLT1A |
X |
Position vector and light time between two spacecraft |
|
|
PPS1A |
A/B |
Level 1A LGRS PPS Time (LGRS Time) |
|
|
REL1A |
A/B |
Relativistic time correction (TDB to onboard satellite proper time) |
|
|
SAE1A |
A/B |
Solar Array Eclipse Data (UTC time) |
|
|
SBR1A |
A/B |
Level 1A SBR data (LGRS Time) |
|
|
SCA1A |
A/B |
Star Tracker Data |
|
|
SNV1A |
A/B |
Level 1A S-Band navigation solution (LGRS Time) |
|
|
TC11A |
A/B |
Time correlation LGRS+Bias to BTC from Level-0 SFDUs eps_drift = RTC from Level-0 SFDUs (LGRS Time) |
|
|
TC21A |
A/B |
Time correlation LGRS+Bias to BTC 1PPS (LGRS Time) |
|
|
TC31A |
A/B |
Time correlation BTC to RTC (BTC Time) |
|
|
TC41A |
A/B |
Time correlation LGRS+Bias to RTC 1PPS (LGRS Time) |
|
|
TC51A |
A/B |
Time correlation RTC to UTC (RTC Time) |
|
|
TC61A |
A/B |
Time correlation UTC to TDB (UTC time) |
|
|
THR1A |
A/B |
Thruster Activation Data |
|
|
USO1A |
A/B |
Oscillator frequency data (derived from RSR data) (LGRS Time) |
|
|
VCM1A |
A/B |
Vector offset file for Center of Mass solution from calibration maneuvers or tracking model in SRF (spacecraft frame) (LGRS Time) |
|
|
WRS1A |
A/B |
Level 1A Wheel rotational speed data (UTC Time) |
|
|
CLK1B |
A/B |
Precise Clock Solution |
|
|
EHK1B |
A/B |
Level 1B spacecraft Enginnering Housekeeping data |
|
|
GNI1B |
A/B |
Level 1B GRAIL satellite orbit solution in Moon centered Inertial frame |
|
|
GNV1B |
A/B |
GRAIL Orbit Solution in lunar body fixed frame |
|
|
KBR1C |
X |
Dual-One-Way Ranging Data |
|
|
MAS1B |
A/B |
Spacecraft Mass Data |
|
|
SAE1B |
A/B |
Solar Array Eclipse Data (UTC time) |
|
|
SBR1B |
X |
S-Band Ranging data |
|
|
SCA1B |
A/B |
Star Tracker Solution |
|
|
THR1B |
A/B |
Thruster Activation Data |
|
|
USO1B |
A/B |
USO Frequency Estimate |
|
|
VCM1B |
A/B |
Center of Mass Offset Estimate |
|
|
VGS1B |
A/B |
S-Band antenna switch time (TDB time) |
|
|
VGX1B |
A/B |
X-Band antenna switch time (TDB time) |
|
|
VKB1B |
A/B |
K-Band Antenna Offset |
|
|
WRS1B |
A/B |
Level 1B Wheel rotational speed data (TDB Time) |
|
|
RSS EDR |
BOF |
A/B |
Biased Open Loop File |
|
BTM |
A/B |
Biased Tracking Data Message Standard |
|
|
EOP |
X |
Earth Orientation Parameters |
|
|
ION |
X |
Ionospheric Media Calibration |
|
|
ODF |
A/B |
Tracking Data, Orbit Data File |
|
|
OLF |
A/B |
Open Loop File |
|
|
RSR |
A/B |
Radio Science Receiver 0159 |
|
|
TDM |
A/B |
Tracking Data Message Standard |
|
|
TNF |
A/B |
Tracking and Navigation File |
|
|
TRO |
X |
Tropospheric Media Calibration |
|
|
WEA |
X |
Weather Files |
|
|
XFR |
A/B |
X-Band sky frequency |
|
|
LGRS RDR
|
SHADR |
X |
Spherical Harmonics ASCII Data Record |
|
SHBDR |
X |
Spherical Harmonics Binary Data Record |
|
|
RSDMAP |
X |
Radio Science Digital Map Product |
|
|
SPK |
A/B |
Spacecraft and Planet Ephemeris Kernel |
Files in the Index directory (Table 2-5) are provided to help the user locate products in the data set.
Table 2-5. INDEX Directory Contents
|
File Name |
File Contents |
File Provided By |
|
INDXINFO.TXT |
A description of the contents of this directory |
Geosciences Node |
|
INDEX.TAB |
A table listing all data products in this data set |
GRAIL SDS |
|
INDEX.LBL |
A PDS detached label that describes INDEX.TAB |
GRAIL SDS |
The index table contains one row for each product in a data set. Table 2-6 lists the columns of the index table.
Table 2-6. INDEX Table Contents
|
Column Name |
Description |
Source |
|
VOLUME_ID |
PDS archive volume on which a data product is stored |
Specified at time of index table creation |
|
PATH_NAME |
Directory path to data product, relative to volume root |
Determined by location of PDS label file |
|
FILE_NAME |
Name of label file for data product |
PDS label file name |
|
PRODUCT_ID |
Unique identifier for data product |
PDS label |
|
PRODUCT_TYPE |
Product type, e.g. ODF, TNF, as in the identifier column in Table 2-4. |
PDS label |
|
PRODUCT_VERSION_ID |
Version number of data product |
PDS label |
|
PRODUCT_CREATION_TIME |
Date and time of data product creation |
PDS label |
|
START_TIME |
UTC date and time of start of data |
PDS label |
|
STOP_TIME |
UTC date and time of end of data |
PDS label |
The DOCUMENT Directory (Table 2-7) contains documentation to help the user understand and use the archive data. Each data set contains the document collection for the entire archive; not all documents are necessary for understanding every data set.
Table 2-7. DOCUMENT Directory Contents
|
File Name |
File Contents |
File Provided By |
|
DOCINFO.TXT |
A description of the contents of this directory |
Geosciences Node |
|
ARCHSIS.HTM |
The Archive Volume SIS (this document) as hypertext. |
GRAIL SDS |
|
ARCHSIS.PDF |
The Archive Volume SIS (this document) as a PDF file |
GRAIL SDS |
|
ARCHSIS.LBL |
A PDS detached label that describes both ARCHSIS.HTM and ARCHSIS.PDF. |
Geosciences Node |
|
DPSIS.HTM |
The Data Product SIS as hypertext. Associated images are in the DPSIS_IMAGES directory. |
GRAIL SDS |
|
DPSIS.PDF |
The Data Product SIS as a PDF file |
GRAIL SDS |
|
DPSIS.LBL |
A PDS detached label that describes both DPSIS.HTM and DPSIS.PDF |
Geosciences Node |
|
090_RevC_1.txt |
0172 Telecomm 090 Rev C as an ASCII text document. |
GRAIL SDS |
|
090_RevC_1.PDF |
0172 Telecomm 090 Rev C as a PDF document. |
GRAIL SDS |
|
090_RevC_1.LBL |
A PDS detached label that describes 090_RevC_1.TXT/PDF. |
Geosciences Node |
|
0159_science_l5.txt |
0159 Science Radio Science Receiver Standard Formatted Data Unit. Associated images are in the 0159_SCIENCE_L5_IMAGES directory. |
GRAIL SDS |
|
0159_science_l5.LBL |
A PDS detached label that describes 0159_science_l5.TXT. |
Geosciences Node |
|
0161_telecomm_L5_8.txt |
0161-Telecomm Telemetry Standard Formatted Data Unit (SFDU) Interface as an ASCII text document. |
GRAIL SDS |
|
0161_telecomm_L5_8.PDF |
0161-Telecomm Telemetry Standard Formatted Data Unit (SFDU) Interface as a PDF document. |
GRAIL SDS |
|
0161_telecomm_L5_8.LBL |
A PDS detached label that describes 0161_telecomm_L5_8.TXT/PDF. |
Geosciences Node |
|
0171_telecomm_NJPL_L5.txt |
0171-Telecomm-NJPL JPL created SFDU structures as an ASCII text document. |
GRAIL SDS |
|
0171_telecomm_NJPL_L5.PDF |
0171-Telecomm-NJPL JPL created SFDU structures as a PDF document. |
GRAIL SDS |
|
0171_telecomm_NJPL_L5.LBL |
A PDS detached label that describes 0171_telecomm_NJPL_L5.TXT/PDF. |
Geosciences Node |
|
0172_TELECOMM_CHDO_REVE_L5.txt |
0172-Telecomm-CHDO DSN Created CHDO Structures as an ASCII text document. |
GRAIL SDS |
|
0172_TELECOMM_CHDO_REVE_L5.LBL |
A PDS detached label that describes 0172_Telecomm_CHDO_RevE_L5.TXT. |
Geosciences Node |
|
ATBD.PDF |
GRAIL "primer" that describes the data processing flow from EDR to CDR as implemented by the GRAIL Team as a PDF file. |
GRAIL SDS |
|
ATBD.HTM |
GRAIL "primer" that describes the data processing flow from EDR to CDR as currently implemented by the GRAIL Team as hypertext. Associated images are located in the ATBD_IMAGES folder. Please see the PDF for equations that do not display properly in this version of the document. |
GRAIL SDS |
|
ATBD.LBL |
A PDS detached label that describes ATBD.PDF/HTM. |
Geosciences Node |
|
BlackJackDLP.txt |
BlackJack Data Link Protocol Interface and Implementation Description as an ASCII text document. |
GRAIL SDS |
|
BlackJackDLP.PDF |
BlackJack Data Link Protocol Interface and Implementation Description as a PDF document. |
GRAIL SDS |
|
BlackJackDLP.LBL |
A PDS detached label that describes BlackJackDLP.TXT/PDF. |
Geosciences Node |
|
Dsn006_medialcal_rev2.htm |
TRK-2-23 Media Calibration Interface. |
GRAIL SDS |
|
Dsn006_medialcal_rev2.LBL |
A PDS detached label that describes Dsn006_medialcal_rev2.HTM. |
Geosciences Node |
|
FORTNIGHT_CALCULATION.HTM |
Supporting document for ONCE_UPON_A_FORTNIGHT.PDF, JPL D-61501, containing the numerical content described therein, as hypertext. Please see the EXTRAS directory for the original Excel file, FORTNIGHT_CALCULATION.XLS. |
GRAIL SDS |
|
FORTNIGHT_CALCULATION.PDF |
Supporting document for ONCE_UPON_A_FORTNIGHT.PDF, JPL D-61501, containing the numerical content described therein, as a PDF file. Please see the EXTRAS directory for the original Excel file, FORTNIGHT_CALCULATION.XLS. |
GRAIL SDS |
|
FORTNIGHT_CALCULATION.LBL |
A PDS detached label that describes FORTNIGHT_CALCULATION.HTM/PDF. |
Geosciences Node |
|
GPA_TD_D_71987_REVE.txt |
GRAIL Telemetry Dictionary as an ASCII text document. |
GRAIL SDS |
|
GPA_TD_D_71987_REVE.PDF |
GRAIL Telemetry Dictionary as a PDF document. |
GRAIL SDS |
|
GPA_TD_D_71987_REVE.LBL |
A PDS detached label that describes GPA_TD_D_71987_REVE.TXT/PDF. |
Geosciences Node |
|
GRAIL_TIMING.HTM |
Timing of Science Data for the GRAIL Mission as hypertext. Associated images are in the GRAIL_TIMING_IMAGES folder. Please see the PDF for equations that do not display properly in this version of the document. |
GRAIL SDS |
|
GRAIL_TIMING.PDF |
Timing of Science Data for the GRAIL Mission as a PDF document. |
GRAIL SDS |
|
GRAIL_TIMING.LBL |
A PDS detached label that describes GRAIL_TIMING.HTM/PDF. |
Geosciences Node |
|
LIB_10_GRAIL_COORD_TRANS_REV1.TXT |
ACS Hardware Coordinate Frame Definitions and Transformations as an ASCII text document. |
GRAIL SDS |
|
LIB_10_GRAIL_COORD_TRANS_REV1.PDF |
ACS Hardware Coordinate Frame Definitions and Transformations as a PDF file. |
GRAIL SDS |
|
LIB_10_GRAIL_COORD_TRANS_REV1.LBL |
PDS detached label that describes the ACS documents. |
Geosciences Node |
|
Nav023_odf_2_18_rev3.htm |
TRK-2-18 Orbit Data File Interface. |
GRAIL SDS |
|
NAV023_ODF_2_18_REV3_FIG2_1.JPG |
Figure 2-1 of Nav023_odf_2_18_rev3.htm. |
GRAIL SDS |
|
Nav023_odf_2_18_rev3.LBL |
A PDS detached label that describes Nav023_odf_2_18_rev3.HTM and NAV023_ODF_2_18_REV3_FIG2_1.JPG. |
Geosciences Node |
|
ONCE_UPON_A_FORTNIGHT.TXT |
GRAIL Time Transfer Assembly Algorithm document as an ASCII text file. |
GRAIL SDS |
|
ONCE_UPON_A_FORTNIGHT.PDF |
GRAIL Time Transfer Assembly Algorithm document as a PDF file. |
GRAIL SDS |
|
ONCE_UPON_A_FORTNIGHT.LBL |
A PDS detached label that describes ONCE_UPON_A_FORTNIGHT.TXT/PDF. |
Geosciences Node |
|
rsdmap.htm |
Software Interface Specification – Radio Science Digital Map (RSDMAP) Products. |
GRAIL SDS |
|
RSDMAP.LBL |
A PDS detached label that describes RSDMAP.HTM. |
Geosciences Node |
|
shadr.htm |
Software Interface Specification – Spherical Harmonics ASCII Data Record. |
GRAIL SDS |
|
SHADR.LBL |
A PDS detached label that describes SHADR.HTM. |
Geosciences Node |
|
shbdr.htm |
Software Interface Specification – Spherical Harmonics Binary Data Record. |
GRAIL SDS |
|
SHbdr.LBL |
A PDS detached label that describes SHBDR.HTM. |
Geosciences Node |
|
SPK_MM_SIS.HTM |
SPICE Spacecraft and Planet Ephemeris Kernel (SPK) |
GRAIL SDS |
|
SPK_MM_SIS.LBL |
A PDS detached label that describes SPK_MM_SIS.HTM. |
Geosciences Node |
|
T2_24_L5.htm |
TRK-2-24 DSN Tracking system Interfaces Weather Data Interface. Associated images are in the T2_24_L5_IMAGES directory. |
GRAIL SDS |
|
T2_24_L5.LBL |
A PDS detached label that describes Trk_2_24.HTM. |
Geosciences Node |
|
tnfsis.txt |
TRK-2-34 DSN Tracking System Data Archival Format |
GRAIL SDS |
|
tnfsis.LBL |
A PDS detached label that describes tnfsis.TXT. |
Geosciences Node |
|
TrackingDataMessageStandard.txt |
Tracking Data Message Recommended Standard as an ASCII text file. |
GRAIL SDS |
|
TrackingDataMessageStandard.PDF |
Tracking Data Message Recommended Standard as a PDF file. |
GRAIL SDS |
|
TrackingDataMessageStandard.LBL |
A PDS detached label that describes TRACKINGDATAMESSAGE.* |
Geosciences Node |
|
Trk_2_21_950831.txt |
TRK-2-21 DSN Tracking System Earth Orientation Parameter Data Interface |
GRAIL SDS |
|
Trk_2_21_950831.LBL |
A PDS detached label that describes Trk_2_21_950831.TXT. |
Geosciences Node |
The files in the CATALOG directory (Table 2-8) provide a top-level understanding of the mission, spacecraft, instruments, and data sets. The files in this directory are coordinated with the PDS data engineer, who is responsible for loading them into the PDS catalog.
Table 2-8. CATALOG Directory Contents
|
File Name |
File Contents |
File Provided By |
|
CATINFO.TXT |
A description of the contents of this directory |
Geosciences Node |
|
LGRS_EDR_DS.CAT |
LGRS EDR Data set information for the PDS catalog (LGRS EDR volume only) |
GRAIL SDS |
|
LGRS_CDR_DS.CAT |
LGRS CDR Data set information for the PDS catalog (LGRS CDR volume only) |
GRAIL SDS |
|
RSS_EDR_DS.CAT |
RSS EDR Data set information for the PDS catalog (RSS EDR volume only) |
GRAIL SDS |
|
LGRS_RDR_DS.CAT |
LGRS RDR Data set information for the PDS catalog (LGRS RDR volume only) |
GRAIL SDS |
|
DSMAP.CAT |
A description of the mapping scheme for GRAIL RSDMAP data products in simple cylindrical projection (LGRS RDR volume only) |
GRAIL SDS |
|
DSMAP_1200A.CAT |
A description of the mapping scheme for GRAIL GRGM1200A RSDMAP data products in simple cylindrical projection (LGRS RDR volume only) |
GRAIL SDS |
|
INSTHOST_A.CAT |
LGRS-A instrument host (i.e., spacecraft) information for the PDS catalog |
GRAIL SDS |
|
INSTHOST_B.CAT |
LGRS-B instrument host (i.e., spacecraft) information for the PDS catalog |
GRAIL SDS |
|
LGRS_A_INST.CAT |
LGRS-A instrument information for the PDS catalog |
GRAIL SDS |
|
LGRS_B_INST.CAT |
LGRS-B instrument information for the PDS catalog |
GRAIL SDS |
|
MISSION.CAT |
Mission information for the PDS catalog |
GRAIL SDS |
|
PERSON.CAT |
Personnel information for the PDS catalog (Team and PDS personnel responsible for generating the archive) |
GRAIL SDS |
|
REF.CAT |
References mentioned in other *.CAT files |
GRAIL SDS |
The Software directory contains utilities or application programs to aid the user in viewing or extracting data from the Level 0 data product files. The codes (C++ and accompanying header (.h) files) are provided as illustrations of how to extract the Blackjack packets from Blackjack binary data. For a description of Blackjack, see section 4.2.1 in [2].
Table 2-9 lists the files in the Software Directory on the GRAIL_0001 volume (GRAIL-L-LGRS-2-EDR-V1.0).
Table 2-9. SOFTWARE Directory Contents
|
File Name |
File Contents |
File Provided By |
|
SOFTINFO.TXT |
A description of the contents of this directory |
GRAIL SDS |
|
SOFTWARE.ZIP |
Compressed ZIP file containing the software files listed below. |
GRAIL SDS |
|
SOFTWARE.LBL |
PDS label for SOFTWARE.ZIP. |
Geosciences Node |
|
TRSRCRC.h |
Interface for the TRSRCRC class. This class provides standard X-MODEM-style CRC generation and checking |
GRAIL SDS |
|
TRSRFlagByte.h |
Interface for the TRSRFlagByte class. This class defines the TRSR packet header flag byte type. |
GRAIL SDS |
|
TRSRHeader.h |
Interface for the TRSRHeader class. |
GRAIL SDS |
|
TRSRRcvBuffer.h |
Interface for a receive buffer class |
GRAIL SDS |
|
TRSRRcvPacket.h |
Interface for the TRSR receive packet class |
GRAIL SDS |
|
TRSRSendPacket.h |
Interface for the TRSR send packet class |
GRAIL SDS |
|
TestApp.cpp |
A receiver-based SLP to test the TRSR output protocol |
GRAIL SDS |
|
TRSRCRC.cpp |
Implementation for the TRSRCRC class. This class provides standard X-MODEM-style CRC generation and checking |
GRAIL SDS |
|
TRSRFlagByte.cpp |
Implementation for the TRSRFlagByte class. This class defines the TRSR packet header flag byte type. |
GRAIL SDS |
|
TRSRHeader.cpp |
Implementation for the TRSRHeader class. This class defines the TRSR packet header. |
GRAIL SDS |
|
TRSRRcvBuffer.cpp |
Implementation of a receive buffer class |
GRAIL SDS |
|
TRSRRcvPacket.cpp |
Implementation of the TRSR receive packet base class |
GRAIL SDS |
|
TRSRSendPacket.cpp |
Implementation of the TRSR send packet base class |
GRAIL SDS |
The CALIB directory contains one file describing spacecraft properties such as dimensions and reflectivity.
Table 2-10. CALIB Directory Contents
File Name |
File Contents |
File Provided By |
CALINFO.TXT |
A description of the contents of this directory |
GRAIL SDS |
GRAILCOMPONENTS.TXT |
Abstract of a paper describing the spacecraft bus component model with dimensions and orientations, as well as the specular/diffuse reflectivity properties of the spacecraft components. Points to online published paper. |
GRAIL SDS |
GRAILCOMPONENTS.LBL |
PDS label that describes GRAILCOMPONENTS.TXT. |
Geosciences Node |
The EXTRAS directory contains ancillary material that may be useful but is not required for the understanding of the archive.
Table 2-11. EXTRAS Directory Contents
File Name |
File Contents |
File Provided By |
EXTRINFO.TXT |
A description of the contents of this directory |
GRAIL SDS |
COVARIANCE/* |
This directory contains reference text files to allow the user to confirm proper reading of the (binary) SHBDR files. |
GRAIL SDS |
CLONES/* |
This directory contains 500 "clones" of the GRGM900C field, each uniquely identified by an index number (0001-0500). The clones are organized into folders of 100 files each. CLONE_DESCRIPTION.PDF describes the method used to generate the files. (LGRS RDR volume only) |
GRAIL SDS |
GEOTIFF/* |
This directory contains non-PDS-standard products provided to users to facilitate the use and analysis of GRAIL gravity maps. The GeoTIFF files contain the same data as the corresponding files in the RSDMAP folder of the main GRAIL archive. Popular mapping software such as ESRI ArcMap and QGIS are able to import the GeoTIFF files directly. |
GRAIL SDS |
FORTNIGHT_CALCULATION.XLS |
This is a supporting document for ONCE_UPON_A_FORTNIGHT.PDF, JPL D-61501, containing the numerical content described therein, as a Microsoft Excel file. This is the original version of the file FORTNIGHT_CALCULATION.PDF, located in the DOCUMENT directory. |
GRAIL SDS |
This section describes the general format of GRAIL Archive Volumes. Data that comprise the Archive are formatted in accordance with Planetary Data System specifications [3].
This section describes file formats for the kinds of files contained on Archive Volumes.
Files with the .TXT or .ASC suffix exist in the root, Index, Software, Catalog, CALIB, Document, and data directories. They are (typically) ASCII files, which may have pre-pended PDS labels. Lines in a .TXT file end with a carriage return character (ASCII 13) and a line feed character (ASCII 10). This allows the files to be read under various operating systems.
Tabular files (.TAB suffix) exist in the INDEX and data directories. Tabular files are ASCII files with fixed-length records. All fields are separated by commas, and character fields are enclosed in double quotation marks ("). (Character fields are padded with spaces to keep quotation marks in the same position in successive records.) Character fields are left justified, and numeric fields are right justified. The "start byte" and "bytes" values listed in the labels do not include the commas between fields or the quotation marks surrounding character fields. The records are of fixed length, and the last two bytes of each record contain the ASCII carriage return and line feed characters. This allows a table to be treated as a fixed length record file on computers that support this file type and as a text file with embedded line delimiters on those that don't.
All tabular files are described by PDS labels. The PDS label file has the same name as the data file it describes, with the extension .LBL; for example, the file INDEX.TAB is accompanied by the detached label file INDEX.LBL in the same directory.
All data files in the archive have PDS labels, either embedded at the beginning of the file or detached in a separate file. For examples of PDS labels for each type of data product, see the Data Product SIS [2].
A PDS label, whether embedded in or detached from its associated file, consists of lines of ASCII text in the form of keyword = value statements that provide descriptive information about the data file. The label is intended to be readable both by humans and by software. Details of the syntax and semantics of PDS labels can be found in the PDS Standards Reference [3], and definitions of the keywords used in the label can be found by using the PDS Data Dictionary Lookup web service at
http://pds.jpl.nasa.gov/tools/ddlookup/data_dictionary_lookup.cfm.
Lines of text in detached labels end with a carriage return character (ASCII 13) and a line feed character (ASCII 10). This allows the files to be read under various operating systems.
Catalog files (suffix .CAT) exist in the root and CATALOG directories. Like PDS labels, they are text files formatted as keyword = value statements. They contain descriptions of the data set, instrument, spacecraft, and mission, as well as personnel contact information and references to published literature. They are called Catalog Files because they are loaded into the PDS online catalog to make the information available to users searching for data. Catalog files do not have separate label files for themselves.
A detailed description of the format, contents, and file naming convention of each data product is provided in the Data Product SIS [2].
Documents in the DOCUMENT directory may be in ASCII format, hypertext, and/or PDF. Since PDFs may contain formatting and figures that cannot be rendered as ASCII text, such files are also provided in hypertext. The hypertext file contains ASCII text plus hypertext markup language (HTML) commands that enable it to be viewed in a Web browser such as Firefox, Safari, or Microsoft Internet Explorer. The hypertext file may be accompanied by ancillary files such as images and style sheets that are incorporated into the document by the Web browser. The PDF (Portable Document Format) is now an ISO standard (ISO 32000) that is frequently used for distributing documents. Free software is available for viewing PDF files.
The GRAIL Archive will be transferred to the PDS via Internet or by mailed physical media, as agreed upon by the GRAIL Team and the PDS Geosciences Node. The Geosciences Node will validate the archive for PDS compliance and for compliance with the GRAIL SIS documents using standard PDS validation tools and specific tools developed by the Geosciences Node.
Table 4-1 summarizes sizes and production rates for the GRAIL standard products. LGRS EDR, LGRS CDR, and LGRS RDR data cover the GRAIL primary and extended missions. RSS EDR data cover the entire mission.
Table 4-1. Product Sizes and Delivery Rates
|
Product |
Product Size |
Production Rate |
Number of Products |
Total Data Volume |
|
DTC00 |
31 MB |
2 per day |
394 |
12 GB |
|
EHK00 |
2 MB |
2 per day |
394 |
616 MB |
|
LTB00 |
4 KB |
1 per day |
197 |
788 KB |
|
MAS00 |
31 KB |
2 per day |
394 |
12 MB |
|
S7200 |
166 KB |
2 per day |
394 |
64 MB |
|
S7300 |
7 MB |
2 per day |
394 |
2.6 GB |
|
SAE00 |
1 MB |
2 per day |
394 |
419 MB |
|
SCA00 |
29 MB |
2 per day |
394 |
11 GB |
|
STC00 |
14 KB |
2 per day |
394 |
5.2 MB |
|
TDE00 |
88 KB |
~1 per 2 days |
99 |
8.5 MB |
|
THR00 |
8 KB |
2 per day |
394 |
3 MB |
|
WRS00 |
239 KB |
2 per day |
394 |
92 MB |
|
CLK1A |
8 KB |
2 per day |
394 |
3.0 MB |
|
DEL1A |
645 KB |
1 per day |
197 |
124 MB |
|
EHK1A |
1 MB |
2 per day |
394 |
430 MB |
|
IHK1A |
759 KB |
2 per day |
394 |
292 MB |
|
IHS1A |
52 KB |
2 per day |
394 |
20 MB |
|
ILG1A |
39 KB |
2 per day |
394 |
15 MB |
|
KBR1A |
65 MB |
2 per day |
394 |
25 GB |
|
LTM1A |
10 MB |
2 per day |
394 |
3.8 GB |
|
MAS1A |
4 KB |
2 per day |
394 |
1.6 MB |
|
PCI1A |
3 MB |
2 per day |
394 |
1008 MB |
|
PLT1A |
16 MB |
1 per day |
197 |
3.0 GB |
|
PPS1A |
195 KB |
2 per day |
394 |
75 MB |
|
REL1A |
1 MB |
2 per day |
394 |
508 MB |
|
SAE1A |
876 KB |
2 per day |
394 |
337 MB |
|
SBR1A |
7 MB |
2 per day |
394 |
2.6 GB |
|
SCA1A |
2 MB |
2 per day |
394 |
718 MB |
|
SNV1A |
12 KB |
2 per day |
394 |
4.7 MB |
|
TC11A |
613 KB |
2 per day |
394 |
236 MB |
|
TC21A |
476 KB |
2 per day |
394 |
183 MB |
|
TC31A |
1 MB |
2 per day |
394 |
402 MB |
|
TC41A |
483 KB |
2 per day |
394 |
186 MB |
|
TC51A |
8 KB |
2 per day |
394 |
3.0 MB |
|
TC61A |
1 MB |
1 per day |
197 |
244 MB |
|
THR1A |
6 KB |
2 per day |
394 |
2.5 MB |
|
USO1A |
4 KB |
2 per day |
394 |
1.6 MB |
|
VCM1A |
4 KB |
2 per day |
394 |
1.6 MB |
|
WRS1A |
146 KB |
2 per day |
394 |
56 MB |
|
CLK1B |
569 KB |
2 per day |
394 |
219 MB |
|
EHK1B |
1 MB |
2 per day |
394 |
430 MB |
|
GNI1B |
2 MB |
2 per day |
394 |
913 MB |
|
GNV1B |
205 KB |
2 per day |
394 |
79 MB |
|
KBR1C |
9 MB |
1 per day |
197 |
1.8 GB |
|
MAS1B |
4 KB |
2 per day |
394 |
1.6 MB |
|
SAE1B |
875 KB |
2 per day |
394 |
337 MB |
|
SBR1B |
9 MB |
1 per day |
197 |
1.7 GB |
|
SCA1B |
2 MB |
2 per day |
394 |
671 MB |
|
THR1B |
6 KB |
2 per day |
394 |
2.5 MB |
|
USO1B |
112 KB |
2 per day |
394 |
43 MB |
|
VCM1B |
4 KB |
2 per day |
394 |
1.6 MB |
|
VGS1B |
4 KB |
2 per day |
394 |
1.6 MB |
|
VGX1B |
4 KB |
2 per day |
394 |
1.6 MB |
|
VKB1B |
4 KB |
2 per day |
394 |
1.6 MB |
|
WRS1B |
146 KB |
2 per day |
394 |
56 MB |
|
BOF |
520 KB |
6 per day |
1178 |
598 MB |
|
BTM |
828 KB |
6 per day |
1178 |
953 MB |
|
EOP |
32 KB |
1 per year |
2 |
64 KB |
|
ION |
21 KB |
2 per month |
32 |
684 KB |
|
ODF |
4 MB |
1-2 per day |
677 |
2.4 GB |
|
OLF |
624 KB |
6 per day |
2096 |
1.2 GB |
|
RSR |
120 MB |
6 per day |
2096 |
247 GB |
|
TDM |
1.3 MB |
6 per day |
2096 |
2.7 GB |
|
TNF |
101 MB |
1-2 per day |
677 |
67 GB |
|
TRO |
160 KB |
1 per month |
16 |
2.5 MB |
|
WEA |
1 MB |
1 per year per DSN complex |
6 |
6.4 MB |
|
XFR |
955 KB |
6 per day |
2096 |
1.9 GB |
|
SHADR |
23 MB |
1 delivery |
1 |
23 MB |
|
SHBDR |
variable |
1 delivery |
4 |
832 GB |
|
RSDMAP |
1 MB |
1 delivery |
1 |
1 MB |
|
SPK |
15 MB |
2 per day |
362 |
334 MB |
The approximate total archive size is estimated to be 1.2 TB. Further revisions of the gravity field (LGRS RDR) may add several hundred more GB.
Lien-resolved volumes containing the complete LGRS EDR, LGRS CDR, RSS EDR, and LGRS RDR data sets will be delivered to PDS according to the schedule in [1].
The GRAIL Team will retain backup copies of all data delivered to the Geosciences Node until the data have been released to the public.
The Geosciences Node will maintain three copies of the GRAIL archive that is kept online for public use, according to standard PDS policy for backup copies. When the GRAIL archive is complete at the end of the mission, the Geosciences Node will deliver a copy of the archive to the National Space Science Data Center (NSSDC) for long-term storage, but the Geosciences Node will maintain its own copies of the archive indefinitely.
There will be four archive volumes resulting from GRAIL deliveries to the PDS. As per Table 2-2, the Volume IDs will be GRAIL_0001, GRAIL_0101, GRAIL_0201, and GRAIL_1001, which will contain, respectively, the data sets GRAIL-L-LGRS-2-EDR-V1.0, GRAIL-L-LGRS-3-CDR-V1.0, GRAIL-L-RSS-2-EDR-V1.0, and GRAIL_L-LGRS-5-RDR-V1.0.
Individual products will be identified by the PDS keyword PRODUCT_ID in the product label. For GRAIL, the file name of the product will be unique across the archive and therefore will be used as the value for PRODUCT_ID. File naming schemes are given in the Data Product SIS [2]. Each product's PDS label will also include the keywords VERSION_ID and PRODUCT_CREATION_TIME, which will be updated in the case of revisions to products.
Sami Asmar
GRAIL Project Scientist
Jet Propulsion Laboratory
4800 Oak Grove Drive
M/S: 321-386
Pasadena, CA 91109-8099
Tel: 818-354-6288
FAX: 818-393-9282
Sami.Asmar@jpl.nasa.gov
Daniel Kahan
GRAIL Radio Science Operations Engineer
Jet Propulsion Laboratory
4800 Oak Grove Drive
M/S: 230-215
Pasadena, CA 91109-8099
Tel: 818-393-2803
FAX: 818-393-9282
Daniel.S.Kahan@jpl.nasa.gov
Susan H. Slavney PDS Geosciences Node Washington University PDS Geoscience Node Campus Box 1169 One Brookings Drive St. Louis, MO 63130-4899 Tel: 314-935-9295 FAX: 314-935-4998 slavney@wunder.wustl.edu