PDS_VERSION_ID = PDS3 RECORD_TYPE = "FIXED_LENGTH" RECORD_BYTES = 182 FILE_RECORDS = 4751 ^TABLE = "TEMPLOG_TV2_HRI.TAB" DATA_SET_ID = "DIF-CAL-HRII/HRIV-GROUND-TV2-V1.0" PRODUCT_NAME = "DEEP IMPACT TEMPERATURE LOG TV2 HRI" PRODUCT_ID = "TEMPLOG_TV2_HRI-20040326" INSTRUMENT_HOST_NAME = "DEEP IMPACT FLYBY SPACECRAFT" INSTRUMENT_ID = { "HRII", "HRIV" } TARGET_NAME = "CALIBRATION" PRODUCT_CREATION_TIME = 2004-03-26T16:25:00 START_TIME = 2002-08-15T23:57:09 /* day of year 227 */ STOP_TIME = 2002-09-01T20:04:27 /* day of year 244 */ OBJECT = TABLE INTERCHANGE_FORMAT = "ASCII" NAME = "TEMPS_TV2_HRI" ROWS = 4751 ROW_BYTES = 182 COLUMNS = 18 DESCRIPTION = "HRI IR flocal plane array (FPA) temperatures were automatically recorded by the HRI thermister monitor during the second thermal-vacuum test. On a daily basis, the time stamps recorded by the monitor for the HRI temperatures varied by 5 to 20 minutes from the time on the ITOC, the ground support computer, and the time stamp recorded in the image headers. The times recorded by the thermister monitor were corrected to match the ITOC times and are included in the second column of this table. The corrected time stamps should be used for calibration and data analysis. All time stamps in this table are local Mountain Daylight Savings time, the HRI thermister monitor. Local time stamps are also used in the filenames for HRI data. This table contains HRI temperatures recorded from 2002-08-15 (day of year 227) through 2002-09-01 (day of year 244), except for 2002-08-17 (day of year 229) for which the HRI temperature log was never saved at Ball Aerospace. Since the HRI instrument was tested during the second and fourth thermal-vacuum tests, the same table layout was used for the HRI temperatures for TV2 and TV4. " OBJECT = COLUMN COLUMN_NUMBER = 1 NAME = "RECORDED_DOY_TIME" START_BYTE = 1 BYTES = 14 DATA_TYPE = "ASCII_REAL" FORMAT = "F14.8" DESCRIPTION = "This column contains the decimal day of the year that the HRI thermistor monitor recorded a set of bench temperatures. The time is the clock time for the HRI thermistor monitor, a computer. The format is yyddd.hhhhhhhh where yy is the last two digits of the year, ddd is the day of year, and hhhhhhhh is time of day converted to a fraction of a day." NOTE = "Do not use this column for calibration or time-based temperature analyses. Use the corrected time, CORRECTED_DOY_TIME." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 2 NAME = "CORRECTED_DOY_TIME" START_BYTE = 17 BYTES = 14 DATA_TYPE = "ASCII_REAL" FORMAT = "F14.8" DESCRIPTION = "This column contains the time stamp corrected to match the time on the ITOC, the ground support computer. The time is the clock time for the ITOC. The format of the time is yyddd.hhhhhhhh where yy is the last two digits of the year, ddd is the day of year, and hhhhhhhh is time of day converted to a fraction of a day." NOTE = "Use this column for calibration and data analysis." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 3 NAME = "IR_FPA_TEMP" START_BYTE = 33 BYTES = 7 DATA_TYPE = "ASCII_REAL" FORMAT = "F7.3" UNIT = "KELVIN" MISSING_CONSTANT = -9.999 DESCRIPTION = "Temperature of the IR focal plane array (IR FPA), the primary radiator; After thermal-vacuum 4 (TV4), Ball Aerospace personnel analyzed all IR FPA temperatures and determined the temperatures recorded by the thermister monitor needed to be adjusted by -3.26K because the cable connected to this temperature point included about 18 inches of manganin wire which resulted in higher temperature measurements due to its higher electrical resistance. All IR FPA temperatures in this column have been adjusted by -3.26K." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 4 NAME = "FLEX_TEMP" START_BYTE = 42 BYTES = 7 DATA_TYPE = "ASCII_REAL" FORMAT = "F7.3" UNIT = "KELVIN" MISSING_CONSTANT = -9.999 DESCRIPTION = "Temperature of the HRI SIM (Spectral Imaging Module) bench at the rear flexure" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 5 NAME = "PRISM_A_TEMP" START_BYTE = 51 BYTES = 7 DATA_TYPE = "ASCII_REAL" FORMAT = "F7.3" UNIT = "KELVIN" MISSING_CONSTANT = -9.999 DESCRIPTION = "First of two temperatures from the HRI SIM bench at the prism" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 6 NAME = "PRISM_B_TEMP" START_BYTE = 60 BYTES = 7 DATA_TYPE = "ASCII_REAL" FORMAT = "F7.3" UNIT = "KELVIN" MISSING_CONSTANT = -9.999 DESCRIPTION = "Second of two temperatures from the HRI SIM bench at the prism" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 7 NAME = "BEAM_SPLITTER_TEMP" START_BYTE = 69 BYTES = 7 DATA_TYPE = "ASCII_REAL" FORMAT = "F7.3" UNIT = "KELVIN" MISSING_CONSTANT = -9.999 DESCRIPTION = "Temperature of the HRI beam splitter" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 8 NAME = "CCD_PLATE_ASSEMBLY_A_TEMP" START_BYTE = 78 BYTES = 7 DATA_TYPE = "ASCII_REAL" FORMAT = "F7.3" UNIT = "KELVIN" MISSING_CONSTANT = -9.999 DESCRIPTION = "First of two temperatures from the HRI CCD plate assembly" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 9 NAME = "PREAMP_BOX_TEMP" START_BYTE = 87 BYTES = 7 DATA_TYPE = "ASCII_REAL" FORMAT = "F7.3" UNIT = "KELVIN" MISSING_CONSTANT = -9.999 DESCRIPTION = "Temperature of the HRI pre-amp box" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 10 NAME = "CCD_PLATE_ASSEMBLY_B_TEMP" START_BYTE = 96 BYTES = 7 DATA_TYPE = "ASCII_REAL" FORMAT = "F7.3" UNIT = "KELVIN" MISSING_CONSTANT = -9.999 DESCRIPTION = "Second of two temperatures from the HRI CCD plate assembly, the secondary radiator" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 11 NAME = "AVG_PRISM_TEMP" START_BYTE = 105 BYTES = 7 DATA_TYPE = "ASCII_REAL" FORMAT = "F7.3" UNIT = "KELVIN" MISSING_CONSTANT = -9.999 DESCRIPTION = "The average of the two prism temperatures, calculated from PRISM_A_TEMP ad PRISM_B_TEMP" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 12 NAME = "TELE_BARREL_CENTER_A_TEMP" START_BYTE = 114 BYTES = 7 DATA_TYPE = "ASCII_REAL" FORMAT = "F7.3" UNIT = "KELVIN" MISSING_CONSTANT = -9.999 DESCRIPTION = "Temperature of the HRI telescope barrel at the center" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 13 NAME = "IR_COOLER_SECONDARY_RAD_TEMP" START_BYTE = 123 BYTES = 7 DATA_TYPE = "ASCII_REAL" FORMAT = "F7.3" UNIT = "KELVIN" MISSING_CONSTANT = -9.999 DESCRIPTION = "Temperature of the IR cooler secondary radiator" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 14 NAME = "PRIMARY_MIRROR_TEMP" START_BYTE = 132 BYTES = 7 DATA_TYPE = "ASCII_REAL" FORMAT = "F7.3" UNIT = "KELVIN" MISSING_CONSTANT = -9.999 DESCRIPTION = "Temperature of the HRI primary mirror" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 15 NAME = "TELE_BARREL_BAFFLE_EXT_TEMP" START_BYTE = 141 BYTES = 7 DATA_TYPE = "ASCII_REAL" FORMAT = "F7.3" UNIT = "KELVIN" MISSING_CONSTANT = -9.999 DESCRIPTION = "Temperature of the HRI telescope barrel baffle extension" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 16 NAME = "TELE_BARREL_CENTER_B_TEMP" START_BYTE = 150 BYTES = 7 DATA_TYPE = "ASCII_REAL" FORMAT = "F7.3" UNIT = "KELVIN" MISSING_CONSTANT = -9.999 DESCRIPTION = "Temperature of the HRI telescope barrel at the center" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 17 NAME = "TIME_SOURCE_ID" START_BYTE = 159 BYTES = 1 DATA_TYPE = "ASCII_INTEGER" FORMAT = "I1" DESCRIPTION = "An integer indentifying the source of the time stamp; For TV2, the 8 HRI temperatures could be recorded by a single thermister monitor. However, for TV4, 13 HRI temperatures were measured: 10 were recorded on the HRI thermister monitor and 3 were recorded on the MRI thermister monitor. The clocks one these monitors were not synchronized very well. 0 = For TV2, all time stamps and temperatures were taken from the HRI thermister. Temperatures were not interpolated. 1 = For TV4, the time stamp was taken from the HRI thermister monitor and the temperatures for the IR prism and the SIM bench rear flexure were interpolated. 2 = For TV4, the time stamp was taken from the MRI thermister monitor and the 10 temperatures associated with the HRI monitor were interpolated. 3 = For TV4, the time stamp was common to both monitors. All 13 HRI temperatures were recorded at the same time; interpolation was not performed." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 18 NAME = "CORRECTED_TIME" START_BYTE = 162 BYTES = 19 DATA_TYPE = "CHARACTER" FORMAT = "A19" DESCRIPTION = "The value of the decimal day-of-year time, CORRECTED_DOY_TIME, converted to a date and time and formatted as yyyy-mm-ddThh:mm:ss" END_OBJECT = COLUMN END_OBJECT = TABLE END