OBJECT = DATASET DATA_SET_ID = 'MGN-V-RDRS-5-MIDR-C3-V1.0' OBJECT = DATASETINFO DATA_SET_NAME = 'MGN V RADAR SYSTEM DERIVED MIDR COMPRESSED THRICE V1.0' DATA_SET_COLLECTION_MEMBER_FLG = 'N' EVENT_START_TIME = 1990-09-16 EVENT_STOP_TIME = 1994-01-12 NATIVE_START_TIME = 'N/A' NATIVE_STOP_TIME = 'N/A' DATA_OBJECT_TYPE = 'IMAGE' DATA_SET_RELEASE_DATE = 1992-09 PROCESSING_LEVEL_ID = 5 PRODUCER_FULL_NAME = 'N/A' PRODUCER_INSTITUTION_NAME = "Multimission Image Processing Subsystem, Jet Propulsion Lab" SOFTWARE_FLAG = 'N' DETAILED_CATALOG_FLAG = 'N' PROCESSING_START_TIME = 1992-01-07T19:55:03.000 PROCESSING_STOP_TIME = 'UNK' DATA_SET_DESC = "Compressed Thrice Mosaicked Image Data Records (C3-MIDRs) consist of mosaics generated by computing 3x3 pixel arithmetic moving averages from the C2-MIDRs. Each C3-MIDR is in a sinusoidal equal area projection and has an origin at 0 degrees latitude, with the central meridian defined as the longitude bisecting the mosaic. Each C1-MIDR has 7168 lines (aligned with latitudes) and 8192 samples, arranged as 56 1024 x 1024 files on CD-ROM. C3-MIDRs, with their 2.025 km pixel widths, are designed to cover the planet at reasonably high resolution and high signal to noise ratio. The 1024 x 1024 files have a VICAR2 format, with embedded VICAR2 labels. The data have been placed on CD-ROMs with documentation, detached Planetary Data System labels, and summary tabular information. One C3-MIDR frame covers 137.5 degrees in latitude and 157 degrees in longitude, at the equator. Note: C3-MIDRs also exist as photoproducts that have had a linear contrast enhancement applied. Photoproducts are generated from the 7K x 8K assemblage of files, so there is one photoproduct per C3-MIDR. Finally, in some cases a cross track seam removal process has been applied. See the CONTENTS.TAB file on the relevant MIDR CD-ROM volume for information on which MIDRs have been seam-corrected. Please refer to the F-BIDR (MGN-V-RDRS-5-BIDR-FULL-RES-V1.0) data set description for more details on radiometric and geometric processing of Magellan SAR data." CONFIDENCE_LEVEL_NOTE = "Unknown" END_OBJECT = DATASETINFO OBJECT = DATASETTARG TARGET_NAME = 'VENUS' END_OBJECT = DATASETTARG OBJECT = DSPARMINFO SAMPLING_PARAMETER_NAME = 'PIXEL' SAMPLING_PARAMETER_RESOLUTION = 4.05 MINIMUM_SAMPLING_PARAMETER = 'N/A' MAXIMUM_SAMPLING_PARAMETER = 'N/A' SAMPLING_PARAMETER_INTERVAL = 2.025 MINIMUM_AVAILABLE_SAMPLING_INT = 'N/A' SAMPLING_PARAMETER_UNIT = 'KILOMETER' DATA_SET_PARAMETER_NAME = 'RADAR SCALED BACKSCATTER CROSS SECTION' NOISE_LEVEL = 'UNK' DATA_SET_PARAMETER_UNIT = 'DIMENSIONLESS' END_OBJECT = DSPARMINFO OBJECT = SCDSHOST INSTRUMENT_HOST_ID = 'MGN' INSTRUMENT_ID = 'RDRS' END_OBJECT = SCDSHOST OBJECT = DSREFINFO REFERENCE_KEY_ID = 'SAUNDERSETAL1990' END_OBJECT = DSREFINFO OBJECT = DSREFINFO REFERENCE_KEY_ID = 'ANDERSEN1988' END_OBJECT = DSREFINFO OBJECT = DSREFINFO REFERENCE_KEY_ID = 'MGNFRD1989' END_OBJECT = DSREFINFO END_OBJECT = DATASET END