urn:nasa:pds:chang_e_microwave_processed:data:ce1_mrm_table 1.0 1.21.0.0 Product_Observational St. Clair, Michael; Brown, Sierra; Feng, Jianqing; Million, Chase; Siegler, Matthew Ward, Jennifer 2024 China's Lunar and Planetary Data Release System released calibrated (L2C) data from the Chang'E 1 Microwave Radiometer (CE-1 MRM) as fixed-width ASCII tables, one table per file, one file per orbit, with attached PVL labels (1690 files in total). To support aggregated analysis workflows and fusion with other data sources, we have concatenated these data into a single FITS file and combined them with ephemeris information and derived quantities. These tables omit some superfluous fields from the source files, as well a handful of rows with invalid constants or out-of-bounds values. 2024-05-24 1.0 Initial version. 2007-11-27T18:22:19.045Z 2009-01-14T19:11:13.063Z Science Calibrated Microwave Geosciences Chang'E-1 Mission urn:nasa:pds:context:investigation:mission.ce1::1.0 data_to_investigation Chang'E-1 Host urn:nasa:pds:context:instrument_host:spacecraft.ce1::1.0 is_instrument_host Chang'E-1 Microwave Radiometer Instrument urn:nasa:pds:context:instrument:ce1.mrm::1.0 is_instrument Moon Satellite urn:nasa:pds:context:target:satellite.earth.moon::1.1 data_to_target de440s.bsp moon_pa_de421_1900-2050.bpc moon_080317.tf naif0012.tls pck00010.tpc MOON MOON_ME MOON ECLIPJ2000 88 2739 urn:nasa:pds:chang_e_microwave_processed:data_source::1.0 data_to_calibrated_product PDS4 version of original NAOC L2C data files. ce1_mrm.fits 2024-06-13T16:51:00Z

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TABLE 8640 6317307 All-time table of CE-1 MRM data and ancillary information. 24 0 151 ORBIT 1 1 UnsignedMSB2 2 Mission-specified orbit number, taken from names of source files. UTC 2 3 UTF8_String 23 Time UTC, taken from source tables. ET 3 26 IEEE754MSBDouble 8 s Ephemeris Time (offset in seconds from J2000, commonly used in the SPICE ecosystem). Derived from UTC and NAIF ephemerides. LTST 4 34 IEEE754MSBSingle 4 Local true solar time, normalized to 0-1, derived from ET, LON, and NAIF ephemerides. T1 5 38 IEEE754MSBSingle 4 K Antenna temperature at channel 1 (3 GHz), taken from source tables. T2 6 42 IEEE754MSBSingle 4 K Antenna temperature at channel 2 (7.8 GHz), taken from source tables. T3 7 46 IEEE754MSBSingle 4 K Antenna temperature at channel 3 (19.35 GHz), taken from source tables. T4 8 50 IEEE754MSBSingle 4 K Antenna temperature at channel 4 (37 GHz), taken from source tables. LAT 9 54 IEEE754MSBSingle 4 deg Selenodetic latitude of boresight position in MOON_ME, taken from source tables. LON 10 58 IEEE754MSBSingle 4 deg Selenodetic longitude of boresight position in MOON_ME (-180 to 180 longitude system), taken from source tables. D 11 62 IEEE754MSBSingle 4 km Distance from orbiter to boresight intercept point, taken from source tables. BX 12 66 IEEE754MSBDouble 8 km X component of boresight position relative to Sun body center in ecliptic coordinates, epoch of J2000 (also called ECLIPJ2000), derived from LAT, LON, ET, and NAIF ephemerides. BY 13 74 IEEE754MSBDouble 8 km Y component of boresight position relative to Sun body center in ecliptic coordinates, epoch of J2000 (also called ECLIPJ2000), derived from LAT, LON, ET, and NAIF ephemerides. BZ 14 82 IEEE754MSBDouble 8 km Z component of boresight position relative to Sun body center in ecliptic coordinates, epoch of J2000 (also called ECLIPJ2000), derived from LAT, LON, ET, and NAIF ephemerides. CX 15 90 IEEE754MSBDouble 8 km X component of orbiter position relative to Sun body center in ecliptic coordinates, epoch of J2000 (called ECLIPJ2000 in SPICE), derived from LAT, LON, ET, and NAIF ephemerides. CY 16 98 IEEE754MSBDouble 8 km Y component of orbiter position relative to Sun body center in ecliptic coordinates, epoch of J2000 (called ECLIPJ2000 in SPICE), derived from LAT, LON, ET, and NAIF ephemerides. CZ 17 106 IEEE754MSBDouble 8 km Z component of orbiter position relative to Sun body center in ecliptic coordinates, epoch of J2000 (called ECLIPJ2000 in SPICE), derived from LAT, LON, ET, and NAIF ephemerides. MX 18 114 IEEE754MSBDouble 8 km X component of selenocenter relative to Sun body center in ecliptic coordinates, epoch of J2000 (called ECLIPJ2000 in SPICE), derived from LAT, LON, ET, and NAIF ephemerides. MY 19 122 IEEE754MSBDouble 8 km Y component of selenocenter relative to Sun body center in ecliptic coordinates, epoch of J2000 (called ECLIPJ2000 in SPICE), derived from LAT, LON, ET, and NAIF ephemerides. MZ 20 130 IEEE754MSBDouble 8 km Z component of selenocenter relative to Sun body center in ecliptic coordinates, epoch of J2000 (called ECLIPJ2000 in SPICE), derived from LAT, LON, ET, and NAIF ephemerides. NX 21 138 IEEE754MSBSingle 4 X component of unit normal vector at boresight in MOON_ME, derived from from LAT, LON, ET, and NAIF ephemerides. NY 22 142 IEEE754MSBSingle 4 Y component of unit normal vector at boresight in MOON_ME, derived from from LAT, LON, ET, and NAIF ephemerides. NZ 23 146 IEEE754MSBSingle 4 Z component of unit normal vector at boresight in MOON_ME, derived from from LAT, LON, ET, and NAIF ephemerides. FLAG 24 150 UnsignedMSB2 2 Quality flags expressed as a bitmask. These are our own flags and are not propagated directly from the source data. For most analytic purposes, we recommend discarding all samples with a nonzero value in this field. Individual (summable) values denote: 0b1: placeholder value for consistency with CE-2 MRM table; not used here 0b10: physically implausible temperatures at one or more channels 0b100: physically implausible offset between channel temperatures 0b1000: sample is from an orbit we have manually flagged due to large ranges of implausible temperature or geopositioning data 0b10000: sample is from an orbit almost completely flagged by the original data providers or with very few provided samples (the surviving samples in these orbits are uniformly suspicious) 0b100000: sample's timestamp duplicates the timestamp of another sample in the dataset (the data may or may not be duplicated, but it is unclear what the orbiter was actually doing at that point) 0b1000000: placeholder value for consistency with CE-2 MRM table; not used here 0b10000000: sample is from an orbit with implausibly low or high latitudinal variation in channel 1 temperature, after excluding data with prior flags 0b100000000: sample is from an orbit with suspiciously large numbers of individual outliers in channel 1 temperature across a variety of latitudinal ranges, after excluding data with prior flags