CCSD3ZF0000100000001NJPL3IF0PDS200000001 = SFDU_LABEL /* Detached PDS label for a Goldstone Venus Radar */ /* backscatter cross-section image */ RECORD_TYPE = FIXED_LENGTH RECORD_BYTES = 420 FILE_RECORDS = 422 /* Pointers to image file and objects within it */ ^FOREIGN_LABEL_1 = ("GVEN028P.IMG",1) ^IMAGE = ("GVEN028P.IMG",2) ^FOREIGN_LABEL_2 = ("GVEN028P.IMG",422) /* Image descriptive information */ DATA_SET_ID = "GSSR-V-RTLS-5-12.6-9CM-V1.0" TARGET_NAME = VENUS IMAGE_TIME = 1980-06-08 EARTH_BASE_NAME = "GOLDSTONE SOLAR SYSTEM RADAR" EARTH_BASE_INSTITUTION_NAME = "JET PROPULSION LABORATORY" DATA_SET_PARAMETER_NAME = "BACKSCATTER CROSS SECTION" PRODUCER_FULL_NAME = "RAYMOND F. JURGENS" MAP_PROJECTION_TYPE = MERCATOR MAP_SCALE = 30.0 MAXIMUM_LATITUDE = 6.31 MINIMUM_LATITUDE = -7.66 MAXIMUM_LONGITUDE = 326.94 MINIMUM_LONGITUDE = 312.94 SUB_EARTH_LATITUDE = -0.68 SUB_EARTH_LONGITUDE = 319.94 RECEIVED_POLARIZATION ="OPPOSITE SENSE CIRCULAR" WAVELENGTH = 12.9 NOTE = "Scaled echo strength image of Venus acquired by the Goldstone Solar System Radar. Data are scaled to fit within an 8 bit unsigned byte value (pre-1977 data are scaled to fit a 6 bit unsigned byte). Pre-1977 data are normalized relative to the square root of the scattering properties for an annulus about the sub-Earth point that includes the data. Later data are normalized by the average for the annulus. Longitudes in the PDS label have been transformed into IAU 1985 coordinates from the original Goldstone coordinate system. The transformation is only approximate. The VICAR2 label has longitudes in the original Goldstone coordinate system, which are approximately 3.66 degrees smaller than the IAU 1985 values. For reference, see Jurgens, R. F., R. M. Goldstein, H. R. Rumsey and R. R. Green, Images of Venus by three-station radar interferometry - 1977 results, J. Geophys. Res., 85, 8282-8294, 1980." /* Object descriptions */ OBJECT = FOREIGN_LABEL_1 TYPE = VICAR2 RECORDS = 1 BYTES = 420 ^DESCRIPTION = "VICAR2.TXT" END_OBJECT = FOREIGN_LABEL_1 OBJECT = IMAGE LINES = 420 LINE_SAMPLES = 420 SAMPLE_BITS = 8 SAMPLE_BIT_MASK = 2#11111111# SAMPLE_TYPE = UNSIGNED_INTEGER END_OBJECT = IMAGE OBJECT = FOREIGN_LABEL_2 TYPE = VICAR2 RECORDS = 1 BYTES = 420 ^DESCRIPTION = "VICAR2.TXT" END_OBJECT = FOREIGN_LABEL_2 END