PDS_VERSION_ID = PDS3 /* FILE FORMAT AND LENGTH */ RECORD_TYPE = FIXED_LENGTH RECORD_BYTES = 1805 FILE_RECORDS = 6742 LABEL_RECORDS = 4 INTERCHANGE_FORMAT = BINARY /* POINTERS TO START RECORDS OF OBJECTS IN FILE */ ^IMAGE_HEADER = ("m0001042_na.img") ^IMAGE = ("m0001042_na.img", 5) /* IMAGE DESCRIPTION */ DATA_SET_ID = "MGS-M-MOC-NA/WA-4-RDR-L1B-V1.0" PRODUCT_ID = "M0001042_NA" PRODUCER_INSTITUTION_NAME = "MALIN SPACE SCIENCE SYSTEMS" PRODUCT_TYPE = "MAP" MISSION_NAME = "MARS GLOBAL SURVEYOR" SPACECRAFT_NAME = "MARS GLOBAL SURVEYOR" INSTRUMENT_NAME = "MARS ORBITER CAMERA" INSTRUMENT_ID = "MOC-NA" TARGET_NAME = "MARS" START_TIME = 1999-04-07T20:45:55.105 STOP_TIME = 1999-04-07T20:45:58.190 SPACECRAFT_CLOCK_START_COUNT = "0607985178.054" SPACECRAFT_CLOCK_STOP_COUNT = "N/A" ORBIT_NUMBER = 365 PRODUCT_CREATION_TIME = 2008-02-27T00:00:00 DATA_QUALITY_DESC = "MGS:DATA_QUALITY_ID is a 10-digit number no less than 1 billion. If the digits are 1abcdefghi, then a = 0 if there was complete C-kernel coverage for this image; a = 1 if the image was mapped using partital C-kernel coverage; a = 2 if the image with mapped without using any C-kernel. Nadir (adjusted for expected pitch angle) is used for pointing when there is no C-kernel coverage. b = 1 if the scale factor for converting from absolute DN was greater than one, indicating an unexpectedly short image value range; otherwise b = 0. c = 0 if no errors were observed during the extraction from MSDP phase for this image; if problems were observed, and automatic repair was attempted c = 1; otherwise c = 2 and no further quality analysis was performed. The remainder of the digits are non-zero only if automatic repair was attempted. d = the number of stretches of missing MSDP fragments, e.g., if fragments 0-7 were expected, but only fragments 0/1/4/6/7 were present, then d = 2. e = the number of data gaps after repair, including both leading and trailing gaps, if any; if there are more than 9 data gaps, e = 9. f = percent of missing data after repair, divided by 10 and rounded to the nearest integer between 0 and 9. g = length of the largest gap, measured in percent, divided by 10 and rounded to the nearest integer between 0 and 9. h = length of the longest contiguous stretch of non-missing image data, divided by 10 and rounded to the nearest integer between 0 and 9. i = 0 if there is reasonable confidence that the repair was successful, and that the correct number of missing data were placed before or after each data gap; i = 1 if there is little or no such confidence. " MGS:DATA_QUALITY_ID = "1000000000" NOTE = "Observation notes: DARK/BRIGHT CONTACT IN TERRA CIMMERIA CRATERED TERRAIN Processing notes: Raw camera COUNT was converted to absolute DN by DN = ((COUNT - Z + OFFSET)/GAIN - G - DC*EX)/EX where Z = 25.576700 OFFSET = 0 GAIN = 93.465000 G = 0.381963 DC = 0.000000 EX = 0.964200 Absolute DN was destriped, and was scaled to an unsigned 16-bit value by VAL16 = 2000*DN + 10000 The 16-bit value was scaled to an unsigned 8-bit value in the range [1,255] by VAL8 = 0.194785*(VAL16 + -10487.000000) + 1.000000 The scaling factors for this last step were calculated to attain good contrast while preserving the significant portion of the image histogram. " /* DESCRIPTION OF OBJECTS CONTAINED IN FILE */ OBJECT = IMAGE BANDS = 1 BAND_STORAGE_TYPE = BAND_SEQUENTIAL BAND_NAME = "N/A" LINES = 6738 LINE_SAMPLES = 1805 SAMPLE_TYPE = UNSIGNED_INTEGER SAMPLE_BITS = 8 SAMPLE_BIT_MASK = 2#11111111# MINIMUM = 0 MAXIMUM = 255 CHECKSUM = 709393882 END_OBJECT = IMAGE OBJECT = IMAGE_MAP_PROJECTION ^DATA_SET_MAP_PROJECTION = "DSMAP.CAT" COORDINATE_SYSTEM_TYPE = "BODY-FIXED ROTATING" COORDINATE_SYSTEM_NAME = "PLANETOCENTRIC" POSITIVE_LONGITUDE_DIRECTION = "EAST" A_AXIS_RADIUS = 3396.1900000 B_AXIS_RADIUS = 3396.1900000 C_AXIS_RADIUS = 3396.1900000 MAP_PROJECTION_TYPE = "SINUSOIDAL" MAP_RESOLUTION = 41910.0000000 MAP_SCALE = 0.001414333036 CENTER_LATITUDE = 0.0000000 CENTER_LONGITUDE = 152.0000000 REFERENCE_LATITUDE = "N/A" REFERENCE_LONGITUDE = "N/A" FIRST_STANDARD_PARALLEL = "N/A" SECOND_STANDARD_PARALLEL = "N/A" LINE_FIRST_PIXEL = 1 SAMPLE_FIRST_PIXEL = 1 LINE_LAST_PIXEL = 6738 SAMPLE_LAST_PIXEL = 1805 LINE_PROJECTION_OFFSET = -2236294.5000000 SAMPLE_PROJECTION_OFFSET = -5435.5000000 MAXIMUM_LATITUDE = -53.3594488 MINIMUM_LATITUDE = -53.5201980 EASTERNMOST_LONGITUDE = 152.2905429 WESTERNMOST_LONGITUDE = 152.2173192 MAP_PROJECTION_ROTATION = 0.0000000 END_OBJECT = IMAGE_MAP_PROJECTION OBJECT = IMAGE_HEADER BYTES = 7220 HEADER_TYPE = ODL INTERCHANGE_FORMAT = ASCII END_OBJECT = IMAGE_HEADER END