CCSD3ZF0000100000001NJPL3IF0PDS200000001 = SFDU_LABEL /* Detached PDS label for the PV-ORAD Fresnel reflectivity image */ RECORD_TYPE = FIXED_LENGTH RECORD_BYTES = 8192 FILE_RECORDS = 1025 /* Pointers to image file and objects within it */ ^FOREIGN_LABEL = ("PVEN003F.IMG",1) ^IMAGE = ("PVEN003F.IMG",2) /* Image descriptive information */ DATA_SET_ID = "P12-V-ORAD-5-RADAR-IMAGE-V1.0" TARGET_NAME = VENUS SPACECRAFT_NAME = "PIONEER VENUS ORBITER" INSTRUMENT_NAME = "ORBITING RADAR" TRANSMITTED_POLARIZATION = "LINEAR" RECEIVED_POLARIZATION = "SAME SENSE LINEAR" WAVELENGTH = 17. DATA_SET_PARAMETER_NAME = FRESNEL_REFLECTIVITY DATA_SET_PARAMETER_UNIT = "N/A" MAP_PROJECTION_TYPE = "SIMPLE CYLINDRICAL" MAP_SCALE = 5.686 MAXIMUM_LATITUDE = 90.0 MINIMUM_LATITUDE = -90.0 MAXIMUM_LONGITUDE = 240.0 MINIMUM_LONGITUDE = 240.0 PRODUCER_FULL_NAME = "PETER G. FORD" NOTE = "VICAR format image of Venus surface Fresnel reflectivity, from radar altimeter measurements, derived by analyzing the time-sampled radar echo profile according to Hagfors' Law of near-normal-incidence scattering from a quasi-specular surface. The Fresnel reflectivity is related to the (complex) surface bulk dielectric constant E by ((sqrt(E)-1)/(sqrt(E)+1))**2. For reference, see Pettengill, G.H., P.G. Ford, and B.D. Chapman, Venus: Surface electromagnetic properties, J. Geophys. Res., 93, 14881-14892, 1988." /* Object descriptions */ OBJECT = FOREIGN_LABEL TYPE = VICAR2 RECORDS = 1 BYTES = 8192 ^DESCRIPTION = "VICAR2.TXT" END_OBJECT = FOREIGN_LABEL OBJECT = IMAGE LINES = 1024 LINE_SAMPLES = 2048 SAMPLE_BITS = 32 SAMPLE_TYPE = VAX_REAL END_OBJECT = IMAGE END