PDS_VERSION_ID                 = PDS3

/* FILE CHARACTERISTICS */
RECORD_TYPE                    = FIXED_LENGTH
RECORD_BYTES                   = 96
FILE_RECORDS                   = 2592

/* POINTERS TO DATA OBJECTS */
^TABLE                         = "AHD_02_240_255.DAT"

/* IDENTIFICATION DATA ELEMENTS */
DATA_SET_NAME                  = "ODY MARS GAMMA RAY SPECTROMETER 5 AHD V1.0"
DATA_SET_ID                    = "ODY-M-GRS-5-AHD-V1.0"
PRODUCT_ID                     = "AHD_02_240_255"
PRODUCT_TYPE                   = "AVERAGED_HEND_DATA"
PRODUCT_VERSION_ID             = "2.0"
RELEASE_ID                     = "0015"

/* DESCRIPTIVE DATA ELEMENTS */
INSTRUMENT_HOST_NAME           = "2001 MARS ODYSSEY"
INSTRUMENT_NAME                = "GAMMA RAY SPECTROMETER"
SPACECRAFT_ID                  = ODY
TARGET_NAME                    = MARS
MISSION_PHASE_NAME             = "EXTENDED MISSION"
START_TIME                     = 2005-06-30T00:00:00.000
STOP_TIME                      = 2005-07-24T00:00:00.000
START_SOLAR_LONGITUDE          = 240
STOP_SOLAR_LONGITUDE           = 255
SPACECRAFT_CLOCK_START_COUNT   = 205966607346
SPACECRAFT_CLOCK_STOP_COUNT    = 206497446556
PRODUCT_CREATION_TIME          = 2006-05-25T16:43:05.768

/* DATA OBJECT DEFINITION */
OBJECT                         = TABLE

  INTERCHANGE_FORMAT           = BINARY
  ROWS                         = 2592
  ROW_BYTES                    = 96

  /* The complete column definitions are contained in an external file */
  /* found in the LABEL directory of the archive disk.                 */

  COLUMNS                      = 24
  ^STRUCTURE                   = "AVG_HEND_DATA_COLS.FMT"

  /* DESCRIPTIVE data elements */

  DESCRIPTION                  = "

     The AND product data has been averaged spatially over a
     5 degree by 5 degree grid and temporally over intervals of 15
     degrees of solar longitude.

     The AHD product data is presented in a table corresponding to the
     5 degree by 5 degree grid. There are 36 latitude bands and 72
     longitude bands, thus 2592 grid cells. Each cell corresponds to
     one row in the table. The first 72 rows in the table are the
     data for the 5 degree latitude band centered at 87.5 degrees north
     latitude, the second 72 rows are the data for the band centered at
     82.5 degrees north latitude, and so on. Within each band, longitude
     increases eastward from the cell centered at 2.5 degrees east
     longitude to the cell centered at 357.5 degrees east longitude.

     Averaged HEND Data products are composed of averaged normalized counting
     rates, orbital neutron fluxes and the associated timing, spatial and
     engineering information. The AHDs consists of the cumulative background
     subtracted and normalized counts of neutrons at the four HEND detectors
     averaged over the 5x5 degree latitude longitude, 15-degree Ls.

     Please refer to the HEND processing document located in the document
     directory that accompanies this release for a full description of how
     HEND spectra are processed to yield averaged normalized counting rates
     and orbital neutron fluxes.

"

END_OBJECT                     = TABLE

END