PDS_VERSION_ID = PDS3 RECORD_TYPE = FIXED_LENGTH RECORD_BYTES = 2880 FILE_RECORDS = 11 ^HEADER = "SDC_0027064320_0X700_SCI_1.FIT" ^EXTENSION_CHARGE_DATA_HEADER = ("SDC_0027064320_0X700_SCI_1.FIT", 9) ^EXTENSION_CHARGE_DATA_TABLE = ("SDC_0027064320_0X700_SCI_1.FIT", 11) NOTE = " - Earth Mean Equator and Vernal Equinox of J2000 is the inertial reference frame used to specify observational geometry. Geometric parameters are based on best available data at time of product creation. Refer to the SPICE archive for the most current observational geometry data. - All positions are relative to body centers - Sun wrt S/C - Light time corrected for light originating from Sun and received by S/C at observation midpoint - Earth wrt S/C - Light time corrected for light originating from Earth and received by S/C at observation midpoint - Solar phase angle (relative to inverted boresight) - No overlap with STIM CALIBRATION " MISSION_NAME = "NEW HORIZONS" DATA_SET_ID = "NH-X-SDC-3-LAUNCH-V3.0" PRODUCT_ID = "SDC_0027064320_0X700_SCI_1" PRODUCER_INSTITUTION_NAME = "SOUTHWEST RESEARCH INSTITUTE" PRODUCT_TYPE = "EDR" MISSION_PHASE_NAME = "POST-LAUNCH CHECKOUT" NEWHORIZONS:SEQUENCE_ID = " COSD_004" NEWHORIZONS:OBSERVATION_DESC = " Science data collection " TARGET_NAME = "DUST" PRODUCT_CREATION_TIME = 2014-11-09T04:50:19 START_TIME = 2006-11-26T09:35:16.379 STOP_TIME = 2006-11-28T10:39:22.379 SPACECRAFT_CLOCK_CNT_PARTITION = 1 SPACECRAFT_CLOCK_START_COUNT = "0026839634:00000" SPACECRAFT_CLOCK_STOP_COUNT = "0027016279:49990" INSTRUMENT_NAME="STUDENT DUST COUNTER" INSTRUMENT_HOST_NAME = "NEW HORIZONS" INSTRUMENT_HOST_ID = "NH" INSTRUMENT_ID = "SDC" TELEMETRY_APPLICATION_ID = "0x700" EXPOSURE_DURATION = 176646.000 FILTER_NAME = "N/A" DETECTOR_ID = "SDC" DETECTOR_TYPE = "PVDF PLASTIC FILM" INST_CMPRS_TYPE = "N/A" SC_TARGET_POSITION_VECTOR = ( "N/A" , "N/A" , "N/A" ) TARGET_CENTER_DISTANCE = "N/A" TARGET_SUN_POSITION_VECTOR = ( "N/A" , "N/A" , "N/A" ) SOLAR_DISTANCE = "N/A" SC_SUN_POSITION_VECTOR = ( 313518702.2525392 , 531104928.2135258 , 221006056.3582232 ) SPACECRAFT_SOLAR_DISTANCE = 655141281.2377379 SC_EARTH_POSITION_VECTOR = ( 376144302.1021421 , 653747642.7503487 , 274176030.7800624 ) SC_GEOCENTRIC_DISTANCE = 802522904.5079366 PHASE_ANGLE = 100.65244 QUATERNION = ( 0.4571300940 , 0.3131976183 , -0.7569310400 , 0.3464025546 ) QUATERNION_DESC = "QUAT_AXYZ_J2K_TO_INSTR.ASC" SPICE_FILE_NAME = { "naif0010.tls" , "new_horizons_0725.tsc" , "nh_stars_kbo_centaur_ppinp.tpc" , "pck00008.tpc" , "nh_v220.tf" , "nh_allinstruments_v002.ti" , "nh_alice_v120.ti" , "nh_lorri_v100.ti" , "nh_pepssi_v110.ti" , "nh_ralph_v100.ti" , "nh_rex_v100.ti" , "nh_sdc_v101.ti" , "nh_swap_v100.ti" , "nh_soc_misc_v001.tf" , "sb_2002jf56_2.bsp" , "jup260.bsp" , "kbo_centaur_horizons_20131129.bsp" , "nh_extras.bsp" , "nh_stars.bsp" , "plu017.bsp" , "nh_nep_ura_000.bsp" , "de418.bsp" , "nh_recon_e2j_v1.bsp" , "nh_recon_j2sep07_prelimv1.bsp" , "merged_nhpc_2006_v001.bc" , "merged_nhpc_2007_v001.bc" , "merged_nhpc_2008_v001.bc" , "merged_nhpc_2009_v001.bc" , "merged_nhpc_2010_v001.bc" , "merged_nhpc_2011_v001.bc" , "merged_nhpc_2012_v001.bc" , "merged_nhpc_2013_v001.bc" , "merged_nhpc_2014_01_v002.bc" , "merged_nhpc_2014_06_v001.bc" , "merged_nhpc_2014_07_v002.bc" , "merged_nhpc_2014_08_v001.bc" } OBJECT = HEADER BYTES = 23040 HEADER_TYPE = "FITS" INTERCHANGE_FORMAT = "BINARY" RECORDS = 8 DESCRIPTION = " FITS format defined in NASA/Science Office Standards Technology 100-1.0 " END_OBJECT = HEADER OBJECT = EXTENSION_CHARGE_DATA_HEADER BYTES = 5760 HEADER_TYPE = "FITS" INTERCHANGE_FORMAT = "BINARY" RECORDS = 2 DESCRIPTION = " This is the FITS header for FITS EDU number: 1 FITS EDU name: CALIBRATED_DATA " END_OBJECT = EXTENSION_CHARGE_DATA_HEADER OBJECT = EXTENSION_CHARGE_DATA_TABLE INTERCHANGE_FORMAT = "BINARY" ROW_BYTES = 80 ROWS = 30 COLUMNS = 10 DESCRIPTION = " FITS EDU number: 1 FITS EDU name: CALIBRATED_DATA SDC recorded events calibrated to charge data as a table " OBJECT = COLUMN NAME = "UTC_TIME" BYTES = 20 ITEMS = 1 ITEM_BYTES = 20 COLUMN_NUMBER = 1 DATA_TYPE = "CHARACTER" START_BYTE = 1 DESCRIPTION = " The UTC time corresponding to the the MET (Mission Event Time) of this row " UNIT = "N/A" END_OBJECT = COLUMN OBJECT = COLUMN NAME = "MET" BYTES = 8 ITEMS = 1 ITEM_BYTES = 8 COLUMN_NUMBER = 2 DATA_TYPE = "IEEE_REAL" START_BYTE = 21 DESCRIPTION = " Mission Event Time Approximately equal to seconds past 19.January, 2006 18:08:02 UTC " UNIT = "N/A" END_OBJECT = COLUMN OBJECT = COLUMN NAME = "CHANNEL" BYTES = 2 ITEMS = 1 ITEM_BYTES = 2 COLUMN_NUMBER = 3 DATA_TYPE = "MSB_INTEGER" START_BYTE = 29 DESCRIPTION = " Channel for a particular event " UNIT = "N/A" END_OBJECT = COLUMN OBJECT = COLUMN NAME = "CHARGE" BYTES = 8 ITEMS = 1 ITEM_BYTES = 8 COLUMN_NUMBER = 4 DATA_TYPE = "IEEE_REAL" START_BYTE = 31 DESCRIPTION = " The calibrated magnitude of the event in units of charge, expressed as equivalent number of electrons. " UNIT = "CHARGE-EQUIVALENT NUMBER OF ELECTRONS" END_OBJECT = COLUMN OBJECT = COLUMN NAME = "MASS" BYTES = 8 ITEMS = 1 ITEM_BYTES = 8 COLUMN_NUMBER = 5 DATA_TYPE = "IEEE_REAL" START_BYTE = 39 DESCRIPTION = " The calibrated magnitude of the event in units of grams " UNIT = "GRAM" END_OBJECT = COLUMN OBJECT = COLUMN NAME = "MASS_THRSH" BYTES = 8 ITEMS = 1 ITEM_BYTES = 8 COLUMN_NUMBER = 6 DATA_TYPE = "IEEE_REAL" START_BYTE = 47 DESCRIPTION = " The threshold of the channel at the time of the event. Note that it is rare, but possible, to get hits smaller than this threshold. It is expressed in grams. " UNIT = "GRAM" END_OBJECT = COLUMN OBJECT = COLUMN NAME = "M_SIGPLUS" BYTES = 8 ITEMS = 1 ITEM_BYTES = 8 COLUMN_NUMBER = 7 DATA_TYPE = "IEEE_REAL" START_BYTE = 55 DESCRIPTION = " The magnitude of the likely positive offset due to uncertainty in the measurement, expressed in grams. The Standard Deviation from the ground calibration is used as an analog for the 1-sigma combined uncertainty of the calibration charge pulse measurement and of the calibration and in-flight DN measurement. See the SOC ICD for details. " UNIT = "GRAM" END_OBJECT = COLUMN OBJECT = COLUMN NAME = "M_SIGMINUS" BYTES = 8 ITEMS = 1 ITEM_BYTES = 8 COLUMN_NUMBER = 8 DATA_TYPE = "IEEE_REAL" START_BYTE = 63 DESCRIPTION = " The magnitude of the likely negative offset due to uncertainty in the measurement, expressed in grams. The Standard Deviation from the ground calibration is used as an analog for the 1-sigma combined uncertainty of the calibration charge pulse measurement and of the calibration and in-flight DN measurement. See the SOC ICD for details. " UNIT = "GRAM" END_OBJECT = COLUMN OBJECT = COLUMN NAME = "QUALITY_FLAG" BYTES = 2 ITEMS = 1 ITEM_BYTES = 2 COLUMN_NUMBER = 9 DATA_TYPE = "CHARACTER" START_BYTE = 71 DESCRIPTION = " The value in this column will be the string `OK` unless there were spacecraft thruster firings less than two seconds before, or less than one second after, the recorded event. If there were such firings, the intials `TF` (meaning Thrusters Fired) will be the value this column. " UNIT = "N/A" END_OBJECT = COLUMN OBJECT = COLUMN NAME = "IMP_VEL" BYTES = 8 ITEMS = 1 ITEM_BYTES = 8 COLUMN_NUMBER = 10 DATA_TYPE = "IEEE_REAL" START_BYTE = 73 DESCRIPTION = " Assumed dust impact speed, km/s; the spacecraft-relative speed of a dust particle, at the same position as the New Horizons spacecraft, in a theoretical, stable, prograde, heliocentric keplerian orbit with an instantaneous velocity parallel to the J2000 ecliptic plane [parallel to the XY plane of of NAIF/SPICE frame ECLIPJ2000], according to this formula: IMP_VEL = 1E-3 x SQRT(G x Msun x (1-beta) / R) where G = Gravitational constant = 6.77384E-11 Msun = Mass of the Sun, kg beta = 0 = correction for solar pressure R = Heliocentric distance, m Units consistent with G (m**3 kg**-1 s**-2) " UNIT = "N/A" END_OBJECT = COLUMN END_OBJECT = EXTENSION_CHARGE_DATA_TABLE END