/* IBS_U3.FMT */ /* describes the structure of the IBS Data Table*/ OBJECT = COLUMN NAME = B_CYCLE_NUMBER DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 1 BYTES = 2 VALID_MINIMUM = 1 VALID_MAXIMUM = 340 MISSING_CONSTANT = 65535 DESCRIPTION = "B cycle number from the start of the day, a value of 65535 indicates no B-cycle data is available" END_OBJECT = COLUMN OBJECT = COLUMN NAME = A_CYCLE_NUMBER DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 3 BYTES = 2 VALID_MINIMUM = 1 VALID_MAXIMUM = 2732 MISSING_CONSTANT = 65535 DESCRIPTION = "A cycle number from the start of day" END_OBJECT = COLUMN OBJECT = COLUMN NAME = TIME DATA_TYPE = IEEE_REAL START_BYTE = 5 BYTES = 8 UNIT = SECOND VALID_MINIMUM = -7.1e+07 VALID_MAXIMUM = 1.5e+09 MISSING_CONSTANT = "10e+09" DESCRIPTION = "Start time of the A cycle, seconds from J2000 (barycentric dynamic time). An A-cycle is the 32 second instrument collection cycle." END_OBJECT = COLUMN OBJECT = COLUMN NAME = TELEMETRY_MODE DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 13 BYTES = 1 VALID_MINIMUM = 1 VALID_MAXIMUM = 136 MISSING_CONSTANT = 255 DESCRIPTION = "Logical telemetry rate and mode: 1 = 250 bps 2 = 500 bps 4 = 1 kbps 8 = 2 kbps 16 = 4 kbps 32 = 8 kbps 64 = 16 kbps 130 = 500 bps solar wind 132 = 1 kbps solar wind 136 = 2 kbps solar wind" END_OBJECT = COLUMN OBJECT = COLUMN NAME = IBS_MODE_SUBMODE_STRATEGY DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 14 BYTES = 1 VALID_MINIMUM = 0 VALID_MAXIMUM = 6 MISSING_CONSTANT = 255 DESCRIPTION = "IBS mode and submode flag: 0 - 6 Are DPU Acquire Normal 0 = Standard Sweep Collapse 1 = Standard Sweep Snapshot 2 = Solar Wind Search 3 = Solar Wind Track 4 = Magnetosphere Search 5 = Magnetosphere Survey 6 = Calibration Mode 16 - 22 Are DPU Acquire Solar Wind 16 = Standard Sweep Collapse 17 = Standard Sweep Snapshot 18 = Solar Wind Search 19 = Solar Wind Track 20 = Magnetosphere Search 21 = Magnetosphere Survey 22 = Calibration Mode 7,23-254 = spare In the latest version of flight software, there are small differences in the compression of these products 255 = Fill" END_OBJECT = COLUMN OBJECT = COLUMN NAME = OFFSET_TIME DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 15 BYTES = 4 UNIT = MILLISECOND VALID_MINIMUM = 0 VALID_MAXIMUM = 256000 MISSING_CONSTANT = 400000 DESCRIPTION = "Milliseconds from start of the IBS collection cycle. An IBS data product is constructed from 16 to 128 azimuths of data, with each azimuth representing 2 seconds of instrument data collection." END_OBJECT = COLUMN OBJECT = COLUMN NAME = FIRST_ENERGY_STEP DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 19 BYTES = 2 VALID_MINIMUM = 1 VALID_MAXIMUM = 852 MISSING_CONSTANT = 65535 DESCRIPTION = "Minimum energy step in collapsed data. This is an index into the energy table." END_OBJECT = COLUMN OBJECT = COLUMN NAME = LAST_ENERGY_STEP DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 21 BYTES = 2 VALID_MINIMUM = 1 VALID_MAXIMUM = 852 MISSING_CONSTANT = 65535 DESCRIPTION = "Maximum energy step in collapsed data This is an index into the energy table." END_OBJECT = COLUMN OBJECT = COLUMN NAME = FIRST_AZIMUTH_VALUE DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 23 BYTES = 2 VALID_MINIMUM = 1 VALID_MAXIMUM = 128 MISSING_CONSTANT = 65535 DESCRIPTION = "Minimum azimuth value in collapsed data" END_OBJECT = COLUMN OBJECT = COLUMN NAME = LAST_AZIMUTH_VALUE DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 25 BYTES = 2 VALID_MINIMUM = 1 VALID_MAXIMUM = 128 MISSING_CONSTANT = 65535 DESCRIPTION = "Maximum azimuth value in collapsed data" END_OBJECT = COLUMN OBJECT = COLUMN NAME = DATA DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 27 UNIT = COUNTS ITEMS = 3 ITEM_BYTES = 2 BYTES = 6 VALID_MINIMUM = 1 VALID_MAXIMUM = 65504 MISSING_CONSTANT = 65535 DESCRIPTION = "Counts in fans 1 through 3" END_OBJECT = COLUMN