PDS_VERSION_ID = PDS3 LABEL_REVISION_NOTE = " 2013-08-28 EPOXI:McLaughlin New. 2014-04-27 EPOXI:McLaughlin Added data for DOYs 2013/065-069 that were missing for Mar 2014 peer review. " RECORD_TYPE = "FIXED_LENGTH" RECORD_BYTES = 563 FILE_RECORDS = 6258 ^HEADER = ("MRI_2_EPOXI_ISON.TAB",1) ^TABLE = ("MRI_2_EPOXI_ISON.TAB",3) DATA_SET_ID = { "DI-C-HRII/HRIV/MRI/ITS-6-DOC-SET-V4.0", "DIF-C-MRI-2-EPOXI-ISON-V1.0"} MISSION_NAME = "EPOXI" INSTRUMENT_HOST_NAME = "DEEP IMPACT FLYBY SPACECRAFT" INSTRUMENT_HOST_ID = "DIF" INSTRUMENT_NAME = "DEEP IMPACT MEDIUM RESOLUTION INSTRUMENT - VISIBLE CCD" INSTRUMENT_ID = "MRI" START_TIME = 2013-01-17T02:09:05.008 STOP_TIME = 2013-03-10T05:39:41.448 OBJECT = HEADER HEADER_TYPE = "TEXT" BYTES = 1126 RECORDS = 2 END_OBJECT = HEADER OBJECT = TABLE INTERCHANGE_FORMAT = ASCII NAME = "MRI_2_EPOXI_ISON_TABLE" ROWS = 6256 ROW_BYTES = 563 COLUMNS = 35 DESCRIPTION = "This table contains image parameters extracted from the PDS labels for raw MRI C/2012 S1 observations acquired during the EPOXI mission. This table is sorted in ascending order by the IMAGE_MID_TIME values in column 1. The values for time- and geometry-related keywords were extracted from the PDS data labels, which were computed using the best available SPICE kernels at the time the data products were generated. Most kernels are available in the EPOXI SPICE dataset, DIF-C/E/X-SPICE-6-V1.0; others that had not yet been archived in the PDS when this dataset was produced are available online at the Operational Flight Project Kernels website maintained by the NASA Navigation and Ancillary Information Facility (NAIF), http://naif.jpl.nasa.gov/naif/data_operational.html. " OBJECT = COLUMN COLUMN_NUMBER = 1 NAME = "IMAGE_MID_TIME" START_BYTE = 1 BYTES = 23 DATA_TYPE = "CHARACTER" FORMAT = "A23" DESCRIPTION = "This parameter provides the UTC time, at the spacecraft, for the mid-point of this observation. The format is YYYY-MM-DDTHH:MM:SS.sss." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 2 NAME = "MID_JULIAN_DATE_VALUE" START_BYTE = 25 BYTES = 15 DATA_TYPE = "ASCII_REAL" FORMAT = "F15.7" DESCRIPTION = "This parameter provides the full Julian date, at the spacecraft, for mid-point of this observation. The format is YYYY-MM-DDTHH:MM:SS.sss." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 3 NAME = "EXPOSURE_ID" START_BYTE = 41 BYTES = 11 DATA_TYPE = "CHARACTER" FORMAT = "A11" DESCRIPTION = "This parameter provides the exposure ID for this observation. The exposure ID is composed of a seven-digit sequence number followed by a three-digit sequential image number within the sequence number. When multiple images were commanded for one sequence number, the image number was sequentially incremented starting with the value 001. Sequence numbers are not necessarily unique; some were reused during the mission." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 4 NAME = "TARGET_NAME" START_BYTE = 53 BYTES = 24 DATA_TYPE = "CHARACTER" FORMAT = "A24" DESCRIPTION = "This parameter identifies the intended target of this observation." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 5 NAME = "TARGET_CENTER_DISTANCE" START_BYTE = 78 BYTES = 14 DATA_TYPE = "ASCII_REAL" FORMAT = "F14.4" UNIT = "KILOMETER" NOT_APPLICABLE_CONSTANT = -88888888.8888 MISSING_CONSTANT = -99999999.9999 DESCRIPTION = "This parameter provides the distance from the spacecraft to the center of the target." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 6 NAME = "PIXEL_SCALE" START_BYTE = 93 BYTES = 12 DATA_TYPE = "ASCII_REAL" FORMAT = "F12.3" UNIT = "METER/PIXEL" NOT_APPLICABLE_CONSTANT = -8888888.888 MISSING_CONSTANT = -9999999.999 DESCRIPTION = "This parameter provides the pixel scale for this observation. For a CCD image it is simply the square pixel scale. For an IR spectral image it is the spatial (vertical) pixel scale where the vertical direction is associated with the slowest varying index of the FITS image." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 7 NAME = "PHASE_ANGLE" START_BYTE = 106 BYTES = 7 DATA_TYPE = "ASCII_REAL" FORMAT = "F7.3" UNIT = "DEGREE" NOT_APPLICABLE_CONSTANT = -88.888 MISSING_CONSTANT = -99.999 DESCRIPTION = "This parameter provides the angle between the Sun, the target, and the observer (instrument boresight) for this observation." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 8 NAME = "INSTRUMENT_MODE_ID" START_BYTE = 114 BYTES = 1 DATA_TYPE = "CHARACTER" FORMAT = "A1" DESCRIPTION = "This parameter identifies the mode of the instrument, also known as image mode, used for this observation: For the HRII instrument: MinExp X-Size Y-Size #Images Bin Mode Name (sec) (pix) (pix) Output Type Comments ---- ------ ------ ------ ------- ---- ---------------------- 1 BINFF 2.861 512 256 1 2x2 2 BINSF1 1.432 512 126 1 2x2 3 BINSF2 0.717 512 64 1 2x2 4 UBFF 2.861 1024 512 1 1x1 5 ALTFF 1.432 512 256 1 2x2 6 DIAG 1.432 1024 512 2 1x1 Reset,data frames 7 MEMCK 1.432 1024 512 1 1x1 Memory check Note: For diagnostic mode 6, a reset frame is acquired first, then a read (i.e., data) frame. Each frame is stored as a separate FITS file. The pair of diagnostic frames have the same exposure ID with consecutive image numbers such that the odd IMAGE_NUMBER is the reset frame and the even IMAGE_NUMBER is the read frame (e.g., exposure ID 1021000 and image number 001 for the reset frame or image number 002 for the read frame). For the HRIV and MRI instruments: MinExp Xsize Ysize Bin Mode Name (ms) (pix) (pix) Type Comments ---- ------ ------ ----- ----- ---- --------------------------- 1 FF 3.5 1024 1024 1x1 Shuttered 2 SF1 3.5 512 512 1x1 Shuttered 3 SF2S 3.5 256 256 1x1 Shuttered 4 SF2NS 217.8 256 256 1x1 Not shuttered 5 SF3S 3.5 128 128 1x1 Shuttered 6 SF3NS 98.4 128 128 1x1 Not shuttered 7 SF4O 47.4 64 64 1x1 Not shuttered 8 SF4NO 47.4 64 64 1x1 Not shuttered,no overclocks 9 FFD 3.5 1024 1024 1x1 Shuttered; diagnostic " END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 9 NAME = "INSTRUMENT_MODE_NAME" START_BYTE = 116 BYTES = 6 DATA_TYPE = "CHARACTER" FORMAT = "A6" DESCRIPTION = "This parameter provides the name associated with the instrument mode used for this observation." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 10 NAME = "INTEGRATION_DURATION" START_BYTE = 123 BYTES = 11 DATA_TYPE = "ASCII_REAL" FORMAT = "F11.3" UNIT = "MILLISECOND" DESCRIPTION = "This parameter provides the total integration or true exposure time for this observation: For HRII modes: integration duration = minimum exposure duration + commanded exposure duration For shuttered HRIV and MRI image modes (1, 2, 3, 5, and 9): integration duration = minimum exposure duration + commanded exposure duration For unshuttered HRIV and MRI image modes (4, 6, 7, and 8): integration duration = minimum exposure duration + commanded exposure duration + interframe delay duration + (0.5 ms if interframe delay duration > 0) " END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 11 NAME = "FILTER_NAME" START_BYTE = 135 BYTES = 11 DATA_TYPE = "CHARACTER" FORMAT = "A11" DESCRIPTION = "This parameter provides the name for the particular HRIV or MRI filter used for this observation. The filter is determined by the position of the Hall Sensor for the filter wheel. If the filter could not be determined, this parameter is set to UNK (unknown). For HRII spectral observations, this parameter is set to N/A (not applicable). Additional information about the filters is provided here: For the HRIV instrument: Fil Filter Center Width # Name (nm) (nm) Comments --- ---------- ----- ----- ------------------------------- N/A N/A N/A Used for HRII and ITS UNK UNK UNK Filter position unknown 0,1 CLEAR1 650 >700 Uncoated and not band limited 2 BLUE 450 100 3 GREEN 550 100 4 VIOLET 350 100 Shortpass coating 5 IR 950 100 Longpass 6 CLEAR6 650 >700 Uncoated and not band limited 7 RED 750 100 8 NIR 850 100 9 ORANGE 650 100 For the MRI instrument: Fil Filter Center Width # Name (nm) (nm) Comments --- ---------- ----- ----- ------------------------------------ N/A N/A N/A Used for HRII and ITS UNK UNK UNK Filter position unknown 0,1 CLEAR1 650 >700 For context; not band limited 2 C2 514 11.8 For C2 in coma 3 GREEN_CONT 526 5.6 For dust in coma 4 RED 750 100 For context 5 IR 950 100 For context; longpass 6 CLEAR6 600 >700 For context; not band limited 7 CN 387 6.2 For CN in coma 8 VIOLET_CONT 345 6.8 For dust in coma 9 OH 309 6.2 For OH in coma where 'Fil #' is the mission-defined number for a particular filter determined by the position of the Hall Sensor for the filter wheel. " END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 12 NAME = "OBS_YEAR" START_BYTE = 147 BYTES = 4 DATA_TYPE = "CHARACTER" FORMAT = "A4" DESCRIPTION = "This parameter provides the year of this observation." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 13 NAME = "OBS_DAY_OF_YEAR" START_BYTE = 152 BYTES = 3 DATA_TYPE = "CHARACTER" FORMAT = "A3" DESCRIPTION = "This parameter provides the day of year of this observation." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 14 NAME = "FILE_NAME" START_BYTE = 156 BYTES = 29 DATA_TYPE = "CHARACTER" FORMAT = "A29" DESCRIPTION = "This parameter provides the FITS file name for this observation." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 15 NAME = "COMPRESSED_IMAGE_VALUE" START_BYTE = 186 BYTES = 12 DATA_TYPE = "CHARACTER" FORMAT = "A12" DESCRIPTION = "This parameter provides image compression information for this observation: UNCOMPRESSED : The raw image was never compressed by flight software. COMPRESSED : The raw image was compressed onboard the spacecraft and was received on the ground as compressed. All raw compressed data are archived in the same compressed format. " END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 16 NAME = "EARTH_OBSERVER_MID_TIME" START_BYTE = 199 BYTES = 23 DATA_TYPE = "CHARACTER" FORMAT = "A23" MISSING_CONSTANT = "UNK" DESCRIPTION = "This parameter provides the UTC time, at the Earth, for the mid-point of this observation. The format is YYYY-MM-DDTHH:MM:SS.sss." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 17 NAME = "RIGHT_ASCENSION" START_BYTE = 223 BYTES = 13 DATA_TYPE = "ASCII_REAL" FORMAT = "F13.9" UNIT = "DEGREE" MISSING_CONSTANT = -99.999999999 DESCRIPTION = "This parameters provides the EME J2000 right ascension where the boresight was pointing for this observation. Values are positive and range from 0 to 360 degrees." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 18 NAME = "DECLINATION" START_BYTE = 237 BYTES = 13 DATA_TYPE = "ASCII_REAL" FORMAT = "F13.9" UNIT = "DEGREE" MISSING_CONSTANT = -99.999999999 DESCRIPTION = "This parameters provides the EME J2000 declination where the boresight was pointing for this observation. Values range from -90 to +90 degrees." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 19 NAME = "TARGET_HELIOCENTRIC_DISTANCE" START_BYTE = 251 BYTES = 14 DATA_TYPE = "ASCII_REAL" FORMAT = "F14.3" UNIT = "KILOMETER" NOT_APPLICABLE_CONSTANT = -888888888.888 MISSING_CONSTANT = -999999999.999 DESCRIPTION = "This parameter provides the distance from the target to the Sun for this observation." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 20 NAME = "TARGET_GEOCENTRIC_DISTANCE" START_BYTE = 266 BYTES = 14 DATA_TYPE = "ASCII_REAL" FORMAT = "F14.3" UNIT = "KILOMETER" NOT_APPLICABLE_CONSTANT = -888888888.888 MISSING_CONSTANT = -999999999.999 DESCRIPTION = "This parameter provides the distance from the target to the Earth for this observation." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 21 NAME = "SC_HELIOCENTRIC_DISTANCE" START_BYTE = 281 BYTES = 14 DATA_TYPE = "ASCII_REAL" FORMAT = "F14.3" UNIT = "KILOMETER" NOT_APPLICABLE_CONSTANT = -888888888.888 MISSING_CONSTANT = -999999999.999 DESCRIPTION = "This parameter provides the distance from the spacecraft to the Sun for this observation." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 22 NAME = "SC_GEOCENTRIC_DISTANCE" START_BYTE = 296 BYTES = 14 DATA_TYPE = "ASCII_REAL" FORMAT = "F14.3" UNIT = "KILOMETER" NOT_APPLICABLE_CONSTANT = -888888888.888 MISSING_CONSTANT = -999999999.999 DESCRIPTION = "This parameter provides the distance from the spacecraft to the Earth for this observation." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 23 NAME = "CELESTIAL_NORTH_CLOCK_ANGLE" START_BYTE = 311 BYTES = 8 DATA_TYPE = "ASCII_REAL" FORMAT = "F8.4" UNIT = "DEGREE" NOT_APPLICABLE_CONSTANT = -88.8888 MISSING_CONSTANT = -99.9999 DESCRIPTION = "This parameter provides the direction of celestial north at the center of the image plane. It is measured from the 'upward' direction, clockwise to the direction toward celestial north when the FITS image is displayed such that the fastest-varying axis increases to the right and the slower-varying axis to the top (up). These directions are also specified by the SAMPLE_DISPLAY_DIRECTION and LINE_DISPLAY_DIRECTION elements in the PDS label. The epoch of the celestial coordinate system is J2000. Values are positive and range from 0 to 360 degrees." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 24 NAME = "ECLIPTIC_NORTH_CLOCK_ANGLE" START_BYTE = 320 BYTES = 8 DATA_TYPE = "ASCII_REAL" FORMAT = "F8.4" UNIT = "DEGREE" NOT_APPLICABLE_CONSTANT = -88.8888 MISSING_CONSTANT = -99.9999 DESCRIPTION = "This parameter provides the direction of ecliptic north at the center of the image plane. It is measured from the 'upward' direction, clockwise to the direction toward ecliptic north when the FITS image is displayed such that the fastest-varying axis increases to the right and the slower-varying axis to the top (up). These directions are also specified by the SAMPLE_DISPLAY_DIRECTION and LINE_DISPLAY_DIRECTION elements in the PDS label. The epoch of the coordinate system is J2000. Values are positive and range from 0 to 360 degrees." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 25 NAME = "SUN_DIRECTION_CLOCK_ANGLE" START_BYTE = 329 BYTES = 8 DATA_TYPE = "ASCII_REAL" FORMAT = "F8.4" UNIT = "DEGREE" NOT_APPLICABLE_CONSTANT = -88.8888 MISSING_CONSTANT = -99.9999 DESCRIPTION = "This parameter provides the direction to the Sun at the center of the image plane. It is measured from the 'upward' direction, clockwise to the direction of the sun as projected into the image plane when the FITS image is displayed such that the fastest-varying axis increases to the right and the slower-varying axis to the top (up). These directions are also specified by the SAMPLE_DISPLAY_DIRECTION and LINE_DISPLAY_DIRECTION elements in the PDS label. Values are positive and range from 0 to 360 degrees." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 26 NAME = "BODY_POSITIVE_POLE_CLOCK_ANGLE" START_BYTE = 338 BYTES = 8 DATA_TYPE = "ASCII_REAL" FORMAT = "F8.4" UNIT = "DEGREE" NOT_APPLICABLE_CONSTANT = -88.8888 MISSING_CONSTANT = -99.9999 DESCRIPTION = "This parameter provides the direction of the target body's positive rotation axis in the image plane. It is measured from the 'upward' direction, clockwise to the direction of the positive rotational pole as projected into the image plane when the FITS image is displayed such that the fastest-varying axis increases to the right and the slower-varying axis to the top (up). These directions are also specified by the SAMPLE_DISPLAY_DIRECTION and LINE_DISPLAY_DIRECTION elements in the PDS label. Values are positive and range from 0 to 360 degrees." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 27 NAME = "SOLAR_ELONGATION" START_BYTE = 347 BYTES = 8 DATA_TYPE = "ASCII_REAL" FORMAT = "F8.4" UNIT = "DEGREE" NOT_APPLICABLE_CONSTANT = -88.8888 MISSING_CONSTANT = -99.9999 DESCRIPTION = "This parameter provides the angle between the line of sight of observation and the direction of the Sun. Values are positive and range from 0 to 180 degrees." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 28 NAME = "SUB_SPACECRAFT_LONGITUDE" START_BYTE = 356 BYTES = 11 DATA_TYPE = "ASCII_REAL" FORMAT = "F11.7" UNIT = "DEGREE" NOT_APPLICABLE_CONSTANT = -98.8888888 MISSING_CONSTANT = -99.9999999 DESCRIPTION = "This parameter provides the longitude of the subspacecraft point. The subspacecraft point is that point on a body's reference surface where a line from the spacecraft center to the body center intersects the surface. The coordinate system is body-fixed rotating, planetocentric. Values are positive and range from 0 to 360 degrees." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 29 NAME = "SUB_SPACECRAFT_LATITUDE" START_BYTE = 368 BYTES = 11 DATA_TYPE = "ASCII_REAL" FORMAT = "F11.7" UNIT = "DEGREE" NOT_APPLICABLE_CONSTANT = -98.8888888 MISSING_CONSTANT = -99.9999999 DESCRIPTION = "This parameter provides the latitude of the subspacecraft point. The subspacecraft point is that point on a body's reference surface where a line from the spacecraft center to the body center intersects the surface. The coordinate system is body-fixed rotating, planetocentric. Values range from -90 to +90 degrees." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 30 NAME = "SUB_SOLAR_LONGITUDE" START_BYTE = 380 BYTES = 11 DATA_TYPE = "ASCII_REAL" FORMAT = "F11.7" UNIT = "DEGREE" NOT_APPLICABLE_CONSTANT = -98.8888888 MISSING_CONSTANT = -99.9999999 DESCRIPTION = "This parameter provides the longitude of the subsolar point. The subsolar point is that point on a body's reference surface where a line from the body center to the sun center intersects that surface. The coordinate system is body-fixed rotating, planetocentric. Values are positive and range from 0 to 360 degrees." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 31 NAME = "SUB_SOLAR_LATITUDE" START_BYTE = 392 BYTES = 11 DATA_TYPE = "ASCII_REAL" FORMAT = "F11.7" UNIT = "DEGREE" NOT_APPLICABLE_CONSTANT = -98.8888888 MISSING_CONSTANT = -99.9999999 DESCRIPTION = "This parameter provides the latitude of the subsolar point. The subsolar point is that point on a body's reference surface where a line from the body center to the sun center intersects that surface. The coordinate system is body-fixed rotating, planetocentric. Values range from -90 to +90 degrees." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 32 NAME = "MISSION_PHASE_NAME" START_BYTE = 404 BYTES = 20 DATA_TYPE = "CHARACTER" FORMAT = "A20" DESCRIPTION = "This parameter provides the name of the mission phase when this observation was acquired." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 33 NAME = "MISSION_ACTIVITY_TYPE" START_BYTE = 425 BYTES = 45 DATA_TYPE = "CHARACTER" FORMAT = "A45" DESCRIPTION = "This parameter identifies the type of mission activity or sequence being performed when this observation was acquired." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 34 NAME = "OBSERVATION_DESC" START_BYTE = 471 BYTES = 45 DATA_TYPE = "CHARACTER" FORMAT = "A45" DESCRIPTION = "This parameter provides the description or purpose of this observation." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 35 NAME = "POINTING_DESC" START_BYTE = 517 BYTES = 45 DATA_TYPE = "CHARACTER" FORMAT = "A45" DESCRIPTION = "This parameter provides the planned spacecraft pointing as defined in the imaging sequence used for acquiring this observation." END_OBJECT = COLUMN END_OBJECT = TABLE END