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- NJPL1I00PDS000000000 = PDS_SFDU_LABEL
- FILE_TYPE = TABLE
- RECORD_TYPE = FIXED_LENGTH
- RECORD_BYTES = 132
- TABLE_ROWS = 351
- TABLE_STRUCTURE = (
- /*
- /* THE FOLLOWING IS AN IN-LINE TABLE DOCUMENTING THE FORMAT
- /* OF THE PIONEER VENUS ORBITER DIRECTORY FILE
- /*
- NJPL1I00PDS000000000 = PDS_SFDU_LABEL
- FILE_TYPE = TABLE
- RECORD_TYPE = STREAM
- TABLE_ROWS = 19
- ROW_COLUMNS = 6
- COLUMN_NAME = (COLUMN_NAME,
- COLUMN_TYPE,
- COLUMN_START_BYTE,
- COLUMN_BYTES,
- COLUMN_UNITS,
- COLUMN_NOTE)
- COLUMN_TYPE = (LITERAL,LITERAL,INTEGER,
- INTEGER,LITERAL,STRING)
- FILE_NOTE = "
- The Pioneer Venus Orbiter (PVO) Line-Of-Sight (LOS) gravity database
- is stored in two formatted direct access files, a directory file and
- a data file. The directory file (PVOLOSDIR.TAB) contains summary
- information for each PVO orbit with each record having the
- items described below.
-
- /* NAME TYPE STRT LEN FORMAT UNITS NOTE
- /*----- ------- --- --- ------ ----- ----------------------"
- END
- ORBNUM, INTEGER, 1, 5, I5, ,"Orbit number (87 - 634)"
- YEAR, INTEGER, 8, 4, I4, ,"Time tag"
- MONTH, INTEGER, 14, 2, I2, ,"Time tag"
- DAY, INTEGER, 18, 2, I2, ,"Time tag"
- HOUR, INTEGER, 22, 2, I2, ,"Time tag"
- MINUTE, INTEGER, 26, 2, I2, ,"Time tag"
- ELONG, REAL, 30, 8, F8.3, DEG,"Sub-earth longitude"
- ELAT, REAL, 40, 7, F7.3, DEG,"Sub-earth latitude"
- EDIST, REAL, 49, 10,F10.0, KM, "Sub-earth distance"
- BEGREC, INTEGER, 61, 6, I6, ,"Pointer to first data record &
- of this orbit in the data file"
- NUMRECS,INTEGER, 69, 4, I4, ,"Number of data records for &
- this orbit in the data file"
- SOUTH, REAL, 75, 7, F7.3, DEG,"South-most latitude of orbit data"
- WEST, REAL, 84, 8, F8.3, DEG,"West-most longitude of orbit data"
- NORTH, REAL, 94, 7, F7.3, DEG,"North-most latitude of orbit data"
- EAST, REAL, 103, 8, F8.3, DEG,"East-most longitude of orbit data"
- ALTMIN, REAL, 113, 9, F9.4, KM,"Minimum altitude of orbit data"
- ALTMAX, REAL, 124, 9, F9.4, KM,"Maximum altitude of orbit data"
- )
- /*
- /* END OF IN-LINE TABLE
- /*
- SPACECRAFT_NAME = PIONEER_VENUS_ORBITER
- ORBIT_RANGE = (87,634)
- FILE_NOTE = "
- PVOLOS Database Description &
- Brian Fessler &
- Lunar and Planetary Institute &
-
- The PVO gravity data set is a database of line-of-sight
- observations stored in two files. One file 'LOSGDIR.DAT' is a
- directory file. Each record in this file contains summary
- information for a particular PVO orbit number as well as pointers
- to where data for that particular orbit may be found in the data
- file. The second file, 'LOSGDAT.DAT' contains individual data
- points for each orbit, including lat, lon, accelleration and
- altitude."
- /*
- TABLE_SFDU = NJPL1I00PDS000046332
- TABLE_POINTER = 'LOSGDIR.DAT'
- END