PDS_VERSION_ID = PDS3 RECORD_TYPE = FIXED_LENGTH RECORD_BYTES = 90 FILE_RECORDS = 11069 ^TABLE = "MRI.TAB" DATA_SET_ID = "DIF-C-HRII/HRIV/MRI-6-TEMPS-V1.0" PRODUCT_NAME = "DEEP IMPACT MRI INSTRUMENT TEMPERATURES V1.0" PRODUCT_ID = "MRI_TAB-200702" PRODUCT_CREATION_TIME = 2007-01-26T21:29:00 INSTRUMENT_HOST_NAME = "DEEP IMPACT FLYBY SPACECRAFT" INSTRUMENT_NAME = "DEEP IMPACT MEDIUM RESOLUTION INSTRUMENT - VISIBLE CCD" TARGET_NAME = "9P/TEMPEL 1 (1867 G1)" START_TIME = 2005-01-15T00:30:14.4 STOP_TIME = 2005-07-09T23:35:31.2 OBJECT = TABLE INTERCHANGE_FORMAT = "ASCII" NAME = "DI_MRI_INST_TEMPS" ROWS = 11069 ROW_BYTES = 90 COLUMNS = 9 DESCRIPTION = "This table provides resampled (raw, averaged) measurements from nine different temperature sensors located at various points on the MRI telescope and the MRI visible CCD. These temperature sensors were connected to side A or B of the flby spacecraft's Thermal Interface Board (TIB). All temperatures are in degrees Celsius. When available the spacecraft sensor numbers (TSnnn) and AMMOS numbers (T-nnnn), Advanced Multi-Mission Operations System) are provided in the column description to help researchers locate the thermal sensors illustrated in the Pictorial Atlas of Deep Impact (& EPOXI) Instrument Thermal Telemetry document which included in this data set. It is important to note these temperature sensors are independent of those used to record measurements that were embedded in the science data image headers by the software on-board the spacecraft. This table was created by averaging all measurements for each sensor within a 20-minute interval in the original telemetry stream received from the flyby spacecraft. No corrections or conversions were applied to the resulting, averaged temperatures. However, the SIM bench temperatures recorded in the telemetry were known be one to two degrees different than the measurements collected by the instruments and recored in the science data image headers. See the instrument calibration paper by Klaasen, et al. (2006) [KLAASENETAL2006] located in the Deep Impact Documentation data set, DI-C-HRII/HRIV/MRI/ITS-6-DOC-SET-V1.0." OBJECT = COLUMN COLUMN_NUMBER = 1 NAME = "DECIMAL_DAY_OF_YEAR" START_BYTE = 2 BYTES = 7 DATA_TYPE = "ASCII_REAL" FORMAT = "F7.3" DESCRIPTION = "This is a time stamp represented as a decimal day of year (2005) at which the temperature measurements in this row were obtained. It is the mean of the spacecraft ephemeris times (SCET) for the measurements within a 20-minute interval. The median, when compared to the average, introduced a maximum uncertainty of +/- 10 minutes which was considered to be negligible because thermal changes occurred over several hours. This time stamp can be used as UTC at the spacecraft because the SCET was good to sub-seconds when compared to the UTC." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 2 NAME = "OPTBEN" START_BYTE = 11 BYTES = 8 DATA_TYPE = "ASCII_REAL" FORMAT = "F8.3" UNIT = "DEGREE CELSIUS" MISSING_CONSTANT = -999.999 DESCRIPTION = "Temperature of the MRI optical bench at the primary mirror (from TIB side A); S/C sensor # TS132 AMMOS # T-0277" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 3 NAME = "CCDA" START_BYTE = 21 BYTES = 8 DATA_TYPE = "ASCII_REAL" FORMAT = "F8.3" UNIT = "DEGREE CELSIUS" MISSING_CONSTANT = -999.999 DESCRIPTION = "Temperature of the MRI CCD plate assembly, the first sensor (from TIB side A); S/C sensor # TS106 AMMOS # T-0284" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 4 NAME = "TELA" START_BYTE = 31 BYTES = 8 DATA_TYPE = "ASCII_REAL" FORMAT = "F8.3" UNIT = "DEGREE CELSIUS" MISSING_CONSTANT = -999.999 DESCRIPTION = "Temperature at the center bottom of the MRI telescope box (from TIB side A); S/C sensor # TS105 AMMOS # T-0299" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 5 NAME = "BAREXT" START_BYTE = 41 BYTES = 8 DATA_TYPE = "ASCII_REAL" FORMAT = "F8.3" UNIT = "DEGREE CELSIUS" MISSING_CONSTANT = -999.999 DESCRIPTION = "Temperature of the MRI telescope box extension (from TIB side B); S/C sensor # TS133 AMMOS # T-1778" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 6 NAME = "CCDB" START_BYTE = 51 BYTES = 8 DATA_TYPE = "ASCII_REAL" FORMAT = "F8.3" UNIT = "DEGREE CELSIUS" MISSING_CONSTANT = -999.999 DESCRIPTION = "Temperature of the MRI CCD plate assembly, second sensor (from TIB side B); S/C sensor # TS112 AMMOS # T-1797" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 7 NAME = "PRIMIR" START_BYTE = 61 BYTES = 8 DATA_TYPE = "ASCII_REAL" FORMAT = "F8.3" UNIT = "DEGREE CELSIUS" MISSING_CONSTANT = -999.999 DESCRIPTION = "Temperature of the MRI primary mirror (from TIB side B); S/C sensor # TS111 AMMOS # T-1800" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 8 NAME = "PREAMP" START_BYTE = 71 BYTES = 8 DATA_TYPE = "ASCII_REAL" FORMAT = "F8.3" UNIT = "DEGREE CELSIUS" MISSING_CONSTANT = -999.999 DESCRIPTION = "Temperature of the MRI pre-amp box (from TIB side B); S/C sensor # TS113 AMMOS # T-1805" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 9 NAME = "ELCTBX" START_BYTE = 81 BYTES = 8 DATA_TYPE = "ASCII_REAL" FORMAT = "F8.3" UNIT = "DEGREE CELSIUS" MISSING_CONSTANT = -999.999 DESCRIPTION = "Temperature of the MRI electronics box (from TIB side B); S/C sensor # TS117 AMMOS # T-1819" END_OBJECT = COLUMN END_OBJECT = TABLE END