urn:nasa:pds:mgs_mola_topography_derived:data_megdr_polar:megt_s_128_1 1.0 1.23.0.0 Product_Observational 2026 This data product is a topographic map of the south pole of Mars at a resolution of 128 pixels per degree, based on altimetry data acquired by the Mars Global Surveyor MOLA instrument. Producer David E. Smith Goddard Space Flight Center, MOLA Team DataCurator Madison N. Hughes Washington University in St. Louis 2026-08-25 1.0 Initial PDS4 version 1997-09-15T19:10:00.000Z 2001-06-30T11:10:40.000Z Mars Global Surveyor Mission urn:nasa:pds:context:investigation:mission.mars_global_surveyor data_to_investigation MOLA The Mars Global Surveyor Spacecraft Host urn:nasa:pds:context:instrument_host:spacecraft.mgs is_instrument_host Mars Global Surveyor Spacecraft Mars Orbiter Laser Altimeter Instrument urn:nasa:pds:context:instrument:mgs.mola is_instrument Mars Planet urn:nasa:pds:context:target:planet.mars data_to_target 3 20333 gridded_image cartography_parameters_to_image_object Polar Stereographic 0 -90 Coordinate Pair 0.46 0.46 128 128 Planetocentric 3376.2 3376.2 3376.2 Positive East Body-fixed Rotating PLANETOCENTRIC gridded_image display_settings_to_array Sample Left to Right Line Top to Bottom 1999-08-08T03:10:20.000Z 1997-09-15T19:10:00.000Z 2001-06-30T11:10:40.000Z Mars Planetocentric Mars IAU2000_MARS megt_s_128_1.img 2004-07-21T01:00:00 This data product is a topographic map of the south pole of Mars at a resolution of 128 pixels per degree, based on altimetry data acquired by the Mars Global Surveyor MOLA instrument and accumulated over the course of the primary and extended mission. The MOLA Precision Experiment Data Records (PEDRs) are the source for this data set. Map coordinates use the IAU2000 reference system and the areoid defined by the Goddard Mars potential model GMM3 (mgm1025) evaluated to degree and order 50. The binned data include all MOLA nadir observations from the Mapping Phase through the Primary and Extended missions, from the end of aerobraking in February 1999 through June 2001. gridded_image 0 2 Last Index Fastest UnsignedMSB2 meter 0.25 -8000 Line 10240 1 Sample 10240 2 megt_s_128_1.lbl 0 PDS3 Original PDS3 label. Carriage-Return Line-Feed megt_s_128_1.hdr 0 7-Bit ASCII Text The ENVI header is a separate ASCII file that includes basic image data file characteristics. ENVI will read both files and use the map projection information in the header file to correctly display the image. The header files are provided because ENVI is not able to import the map projection information directly from the MEGDR image labels. Carriage-Return Line-Feed