OBJECT        = COLUMN
   NAME           = MET
   COLUMN_NUMBER  = 1
   BYTES          = 4
   DATA_TYPE      = MSB_UNSIGNED_INTEGER
   START_BYTE     = 1
   DESCRIPTION    = "Time tag in seconds of the start of the associated
     reporting/accumulation period."
END_OBJECT    = COLUMN

OBJECT        = COLUMN
   NAME           = ORBIT_NUMBER
   COLUMN_NUMBER  = 2
   BYTES          = 2
   DATA_TYPE      = MSB_UNSIGNED_INTEGER
   START_BYTE     = 5
   DESCRIPTION    = "Orbit number is a unique identifier for a given orbit of
   the MESSENGER spacecraft around Mercury. Orbit number is defined as
   starting at apoherm and is calculated using the MET value and the
   appropriate SPICE kernels. Orbit numbering does not start until MESSENGER
   performs the Mercury orbit insertion. Until that time the value for orbit
   number is 0."
END_OBJECT    = COLUMN

OBJECT        = COLUMN
   NAME           = EVT_MODE_LEN
   COLUMN_NUMBER  = 3
   BYTES          = 2
   DATA_TYPE      = MSB_UNSIGNED_INTEGER
   START_BYTE     = 7
   DESCRIPTION    = "Event mode data length. This specifies the N number of 
   items containing data in the following event mode data fields.  Event mode 
   data length is commandable and can vary from 0-255."
END_OBJECT    = COLUMN

OBJECT        = COLUMN
   NAME           = EVT_MODE_TTSP
   COLUMN_NUMBER  = 4
   BYTES          = 510
   DATA_TYPE      = MSB_UNSIGNED_INTEGER
   START_BYTE     = 9
   ITEMS          = 255
   ITEM_BYTES     = 2
   DESCRIPTION    = "Event mode data for Time-To-Second-Pulse (TTSP) values.
   The Ith item in the TTSP field is the TTSP for the Ith correlated time
   event. If EVT_MODE_LEN is less than 255 then the item columns greater
   than N do not contain valid data and will default to 0."
END_OBJECT    = COLUMN

OBJECT        = COLUMN
   NAME           = EVT_MODE_BPP
   COLUMN_NUMBER  = 5
   BYTES          = 510
   DATA_TYPE      = MSB_UNSIGNED_INTEGER
   START_BYTE     = 519
   ITEMS          = 255
   ITEM_BYTES     = 2
   DESCRIPTION    = "Event mode data containing the BPP event energies, in 
   raw ADC units. The Nth item corresponds to the prompt energy of the Nth
   time-correlated event. If EVT_MODE_LEN is less than 255 then the item
   columns greater than N do not contain valid data and will default to 0."
END_OBJECT    = COLUMN

OBJECT        = COLUMN
   NAME           = EVT_MODE_BPS
   COLUMN_NUMBER  = 6
   BYTES          = 510
   DATA_TYPE      = MSB_UNSIGNED_INTEGER
   START_BYTE     = 1029
   ITEMS          = 255
   ITEM_BYTES     = 2
   DESCRIPTION    = "Event mode data containing the BPS event energies, in
   raw ADC units. The Nth item in the field corresponds to the
   delayed-deposited energies of the Nth time-correlated event. If 
   EVT_MODE_LEN is less than 255 then the item columns greater than N do not
   contain valid data and will default to 0."
END_OBJECT    = COLUMN