PDS_VERSION_ID = PDS3 RECORD_TYPE = FIXED_LENGTH RECORD_BYTES = 298 FILE_RECORDS = 1 VOLUME_ID = "SBN_0193" DATA_SET_ID = "GO-A-NIMS-4-GASPRACUBE-V1.0" SPACECRAFT_NAME = "GALILEO ORBITER" INSTRUMENT_NAME = "NEAR INFRARED MAPPING SPECTROMETER" INSTRUMENT_ID = NIMS NOTE = "This Index Table contains selected information for the spectral image cube file contained in the gaspra_nims_hires_radiance data volume. This Galileo NIMS spectral image cube is the highest spatial resolution Near Infrared Mapping Spectrometer observation of asteroid 951 Gaspra. The table contains one row for the spectral image cube file included in the volume. The ODL object descriptions in this file describe the data fields in each row of the table. The table is formatted so that it may be read directly into many data management systems on various host computers. All fields (columns) are separated by commas, and character fields are enclosed in double quotation marks. Each record consists of 304 bytes, with some spares (blanks) near the end, and with a carriage return/line feed sequence in bytes 303 and 304. This allows the table to be treated as a fixed length record file on hosts that support this file type and as a normal text file on other hosts." ^INDEX_TABLE = "INDEX.TAB" OBJECT = INDEX_TABLE COLUMNS = 24 INDEX_TYPE = SINGLE INTERCHANGE_FORMAT = ASCII ROW_BYTES = 298 ROWS = 1 OBJECT = COLUMN NAME = PATH_NAME DATA_TYPE = CHARACTER START_BYTE = 2 BYTES = 8 FORMAT = "A8" DESCRIPTION = "The data volume directory for the spectral image cube data file." END_OBJECT = COLUMN OBJECT = COLUMN NAME = FILE_NAME DATA_TYPE = CHARACTER START_BYTE = 14 BYTES = 30 FORMAT = "A30" DESCRIPTION = "The name of the spectral image cube files." END_OBJECT = COLUMN OBJECT = COLUMN NAME = MISSION_PHASE_NAME DATA_TYPE = CHARACTER START_BYTE = 47 BYTES = 20 FORMAT = "A20" DESCRIPTION = "The mission phase during which data was acquired. Phase names are assigned by the Galileo project." END_OBJECT = COLUMN OBJECT = COLUMN NAME = PRIMARY_TARGET_NAME DATA_TYPE = CHARACTER START_BYTE = 71 BYTES = 16 FORMAT = "A16" DESCRIPTION = "The primary target of the observation or observation segment." END_OBJECT = COLUMN OBJECT = COLUMN NAME = SPACECRAFT_NAME DATA_TYPE = CHARACTER START_BYTE = 90 BYTES = 15 FORMAT = "A15" DESCRIPTION = "The name of the spacecraft which hosts the instrument referenced in the INSTRUMENT_ID object." END_OBJECT = COLUMN OBJECT = COLUMN NAME = INSTRUMENT_ID DATA_TYPE = CHARACTER START_BYTE = 108 BYTES = 4 FORMAT = "A4" DESCRIPTION = "An abbreviated name or acronym which identifies the instrument that took the data." END_OBJECT = COLUMN OBJECT = COLUMN NAME = NATIVE_START_TIME DATA_TYPE = CHARACTER START_BYTE = 115 BYTES = 10 FORMAT = "A10" DESCRIPTION = "The spacecraft clock count (rrrrrrrr.mm) at which data acquisition began." END_OBJECT = COLUMN OBJECT = COLUMN NAME = NATIVE_STOP_TIME DATA_TYPE = CHARACTER START_BYTE = 128 BYTES = 10 FORMAT = "A10" DESCRIPTION = "The spacecraft clock count (rrrrrrrr.mm) at which data acquisition stopped." END_OBJECT = COLUMN OBJECT = COLUMN NAME = START_TIME DATA_TYPE = CHARACTER START_BYTE = 141 BYTES = 20 FORMAT = "A20" DESCRIPTION = "The Universal Time Coordinated (UTC) at which data acquisition began." END_OBJECT = COLUMN OBJECT = COLUMN NAME = STOP_TIME DATA_TYPE = CHARACTER START_BYTE = 164 BYTES = 20 FORMAT = "A20" DESCRIPTION = "The Universal Time Coordinated (UTC) at which data acquisition stopped." END_OBJECT = COLUMN OBJECT = COLUMN NAME = OBSERVATION_NAME DATA_TYPE = CHARACTER START_BYTE = 187 BYTES = 12 FORMAT = "A12" DESCRIPTION = "The name assigned to the observation during the Galileo planning process." END_OBJECT = COLUMN OBJECT = COLUMN NAME = PRODUCT_CREATION_TIME DATA_TYPE = CHARACTER START_BYTE = 202 BYTES = 10 FORMAT = "A10" DESCRIPTION = "The Universal Time Coordinated (UTC) at which the NIMS product was generated." END_OBJECT = COLUMN OBJECT = COLUMN NAME = MINIMUM_LATITUDE DATA_TYPE = REAL START_BYTE = 214 BYTES = 6 FORMAT = "F6.2" UNIT = DEGREE DESCRIPTION = "The minimum latitude of data included in the spectral image cube." END_OBJECT = COLUMN OBJECT = COLUMN NAME = MAXIMUM_LATITUDE DATA_TYPE = REAL START_BYTE = 221 BYTES = 6 FORMAT = "F6.2" UNIT = DEGREE DESCRIPTION = "The maximum latitude of data included in the spectral image cube." END_OBJECT = COLUMN OBJECT = COLUMN NAME = EASTERNMOST_LONGITUDE DATA_TYPE = REAL START_BYTE = 228 BYTES = 7 FORMAT = "F7.2" UNIT = DEGREE DESCRIPTION = "The easternmost longitude of data included in the spectral image cube. Range: 0 to 360." END_OBJECT = COLUMN OBJECT = COLUMN NAME = WESTERNMOST_LONGITUDE DATA_TYPE = REAL START_BYTE = 236 BYTES = 7 FORMAT = "F7.2" UNIT = DEGREE DESCRIPTION = "The westernmost longitude of data included in the spectral image cube. Range: 0 to 360." END_OBJECT = COLUMN OBJECT = COLUMN NAME = INCIDENCE_ANGLE DATA_TYPE = REAL START_BYTE = 244 BYTES = 6 FORMAT = "F6.2" UNIT = DEGREE DESCRIPTION = "The incidence angle provides a measure of the lighting condition at the intercept point. It is the angle between the local vertical at the intercept point (surface) and a vector from the intercept point to the sun. The incidence angle in the table is at the approximate center of the spatial area covered by the spectral image cube." END_OBJECT = COLUMN OBJECT = COLUMN NAME = EMISSION_ANGLE DATA_TYPE = REAL START_BYTE = 251 BYTES = 6 FORMAT = "F6.2" UNIT = DEGREE DESCRIPTION = "The emission angle provides the value of the angle between the surface normal vector at the intercept point and a vector from the intercept point to the spacecraft. The emission angle in the table is at the approximate center of the spatial area covered by the spectral image cube." END_OBJECT = COLUMN OBJECT = COLUMN NAME = PHASE_ANGLE DATA_TYPE = REAL START_BYTE = 258 BYTES = 6 FORMAT = "F6.2" UNIT = DEGREE DESCRIPTION = "The phase angle provides a measure of the relationship between the spacecraft viewing position and incident solar light. It is defined as the angle between a vector from the intercept point to the sun and a vector from the intercept point to the spacecraft. The phase angle in the table is at the approximate center of the spatial area covered by the spectral image cube." END_OBJECT = COLUMN OBJECT = COLUMN NAME = GAIN_MODE_ID DATA_TYPE = INTEGER START_BYTE = 265 BYTES = 1 FORMAT = "I1" DESCRIPTION = "There are 4 NIMS gain states, which determine the gains applied individually to the 14 non-thermal detectors. Gain state 2 is designed for observing a bright Jupiter in each detector. Gain state 3 and 4 are each more sensitive by factors of two and four, respectively. Gain state 1 is similar to gain state 2, except channels 10-14 are each reduced in order to obtain measurements of the Radiometric Calibration Target." END_OBJECT = COLUMN OBJECT = COLUMN NAME = INSTRUMENT_MODE_ID DATA_TYPE = CHARACTER START_BYTE = 268 BYTES = 10 FORMAT = "A10" DESCRIPTION = "The principal NIMS instrument modes are LONG, FULL, SHORT and FIXED MAP and the corresponding SPECTROMETER modes. A LONG grating cycle of 24 steps results in 17*24 or 408 wavelengths or bands in a cube. A FULL grating cycle of 12 steps results in 204 bands. A SHORT grating cycle of 6 steps results in 102 bands. A FIXED grating results in only 17 bands. In MAP modes, the secondary mirror traverses 20 cross-cone positions. In SPECTROMETER modes, it is stationary, but samples are taken with the same frequency as in MAP modes." END_OBJECT = COLUMN OBJECT = COLUMN NAME = LINE_SAMPLES DATA_TYPE = INTEGER START_BYTE = 280 BYTES = 5 FORMAT = "I5" DESCRIPTION = "The number of data instances along the horizontal axis of each band of the spectral image cube." END_OBJECT = COLUMN OBJECT = COLUMN NAME = LINES DATA_TYPE = INTEGER START_BYTE = 286 BYTES = 5 FORMAT = "I5" DESCRIPTION = "The number of data instances along the vertical axis of each band of the spectral image cube." END_OBJECT = COLUMN OBJECT = COLUMN NAME = BANDS DATA_TYPE = INTEGER START_BYTE = 292 BYTES = 5 FORMAT = "I5" DESCRIPTION = "The number of spectral bands (or wavelengths) in the spectral image cube." END_OBJECT = COLUMN END_OBJECT = INDEX_TABLE END