OBJECT = COLUMN NAME = MET COLUMN_NUMBER = 1 BYTES = 4 DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 1 DESCRIPTION = "Mission elapsed time, in seconds, corresponding to the start of the accumulation period for the spectra." END_OBJECT = COLUMN OBJECT = COLUMN NAME = ORBIT_NUM 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 = START_BIN COLUMN_NUMBER = 3 BYTES = 2 DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 7 DESCRIPTION = "Start Bin of the Microphonics detector." END_OBJECT = COLUMN OBJECT = COLUMN NAME = NUMBER_OF_BINS COLUMN_NUMBER = 4 BYTES = 2 DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 9 DESCRIPTION = "Number of bins in the raw spectra." END_OBJECT = COLUMN OBJECT = COLUMN NAME = BAD_DATA_FLAG COLUMN_NUMBER = 5 BYTES = 2 DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 11 DESCRIPTION = "Intended for use as a bit-string bad data flag to indicate specific problems associated with the data. Values are expected to be assigned to specific bits as problems are identified during the course of the mission. Currently no values have been assigned and will default to a value of zero." END_OBJECT = COLUMN OBJECT = COLUMN NAME = MICROPHONICS COLUMN_NUMBER = 6 BYTES = 65536 DATA_TYPE = MSB_INTEGER START_BYTE = 13 ITEMS = 32768 ITEM_BYTES = 2 DESCRIPTION = "One sample measurement of microphonics time series accumulated by microphonics detector. Contains the counts in each of the 32768 bins." END_OBJECT = COLUMN