urn:nasa:pds:cassini_iss_cruise:data_raw:index 1.0 1.11.0.0 Product_Metadata_Supplemental M. R. Showalter, R. S. French, M. W. Evans, M. K. Gordon, and M. S. Tiscareno 2020 metadata This table describes the general properties of each Cassini ISS image. 2019-08-01 1.0 Initial delivery index.tab 2019-07-30T21:46:22 112979822 35878 2a285a95c8c699a9eaae99765f3cb112 This table describes the general properties of each Cassini ISS image. 0 35878 This version of the Cassini ISS image index for PDS3 volumes COISS_1001 to COISS_1009 has been edited by the PDS Ring-Moon Systems Node for compliance with PDS3 standards. Invalid rows have been edited so they obey the specified DATA_TYPE and can therefore be read more easily by software. For example, where a numeric column contained 'NULL', that value has been replaced by '-1.e32' and, in the label, a numeric value of -1.e32 has been identified as the NULL_CONSTANT or NOT_APPLICABLE_CONSTANT. Note that NULL_CONSTANT identifies values that could be known but are not, whereas NOT_APPLICABLE_CONSTANT refers to values that are undefined. An example of the former would be a missing value of SC_SUN_POSITION_VECTOR; an example of the latter would be a value of LOWER_LEFT_LATITUDE in an image where the lower left corner does not intercept the target body. Note: This file was obtained from the PDS Ring-Moon Systems Node at this URL: https://pds-rings.seti.org/viewmaster/metadata/COISS_1xxx/COISS_1999/COISS_1999_index.tab It was downloaded on July 30, 2019. Two additional, leading columns, containing the image LID and PDS4 raw image file path, have been pre-pended to each record; the remainder of each record is unchanged. Carriage-Return Line-Feed 121 0 3149 Image LID 1 1 ASCII_LID 52 The LID for this image. File Specification 2 54 ASCII_File_Specification_Name 26 The directory path to the associated raw image file. FILE_NAME 3 82 ASCII_String 22 The name of the image file as stored on the archive media. FILE_SPECIFICATION_NAME 4 107 ASCII_String 48 Path name locating images in DATA directory on PDS3 data set volumes. VOLUME_ID 5 158 ASCII_String 11 The PDS3 volume on which the product is stored. ANTIBLOOMING_STATE_FLAG 6 172 ASCII_String 4 Indicator of whether antiblooming was used for this image. BIAS_STRIP_MEAN 7 178 ASCII_Real 11 Mean value of the overclocked pixel values from all lines except the first and last. Not affected by light or dark current. 0. CALIBRATION_LAMP_STATE_FLAG 8 191 ASCII_String 4 Indicates whether calibration lamp was used for this image. (ISSNA has none, so it's always 'N/A') COMMAND_FILE_NAME 9 198 ASCII_String 64 The name of the IOI file containing the observation description for this product - sent from the ISS Team Lead to IO. COMMAND_SEQUENCE_NUMBER 10 264 ASCII_Integer 11 Numeric identifier for a sequence of commands sent to the spacecraft. Also known as 'trigger number'. (Comes from the TRIGGER_NUMBER keyword in the IOI file.) Note that 1-12 are reserved for IO use and 8 is reserved for OpNav. 65534 DARK_STRIP_MEAN 11 276 ASCII_Real 11 Mean value of the extended pixel values from all lines except the first and last. Not affected by light, but by dark current and Dark Band problem. 0. DATA_CONVERSION_TYPE 12 289 ASCII_String 5 The method of conversion used to convert image from 12 to 8 bits selected for this image. '12BIT' = no conversion 'TABLE' = conversion by look-up table '8LSB' = keep only the 8 least significant bits DATA_SET_ID 13 297 ASCII_String 40 PDS/Cassini-supplied name for this data set. DELAYED_READOUT_FLAG 14 340 ASCII_String 4 Indicator of whether the image may have waited on the CCD while the other camera was performing a readout. DESCRIPTION 15 347 ASCII_String 255 Descriptive comment up to 255 characters. Populated by IO telemetry processing, validation and reconciliation software to describe known limitations of this product. DETECTOR_TEMPERATURE 16 604 ASCII_Real 11 degC Temperature of CCD in Celsius degrees. -999. EARTH_RECEIVED_START_TIME 17 616 ASCII_String 22 Earth Received time of the earliest record containing valid data for this image (UTC). UNK EARTH_RECEIVED_STOP_TIME 18 639 ASCII_String 22 Earth Received time of the latest record containing valid data for this image (UTC). UNK ELECTRONICS_BIAS 19 662 ASCII_Integer 11 Commanded electronics bias to ensure that all DN values are greater than zero. (Comes from the VIDEO_OFFSET keyword in the IOI file.) 65534 EXPECTED_MAXIMUM 20 674 ASCII_Real 23 2-valued array. First, represents the ratio of the expected maximum DN in the image to the VALID_MAXIMUM (full well DN). Second, represents the ratio of the expected maximum DN in the image to the VALID_MAXIMUM (maxDN). 1e+32 EXPECTED_PACKETS 21 698 ASCII_Integer 11 This keyword provides the total number of packets expected to be stored on the SSR for this image. To convert to volume in bits, multiply this value by 7616 bits/packet. (Comes from the EXPECTED_PACKETS keyword in the IOI file.) 65534 EXPOSURE_DURATION 22 710 ASCII_Real 11 ms Exposure duration for the image in milliseconds. 63 distinct values from 0 to 1200000. (See table in Appendix A.) -999.0 if extended header is unavailable FILTER_NAME 23 723 ASCII_String 13 2-valued array. First, filters used on filter wheel 1. Second, filters used on filter wheel 2. FILTER_TEMPERATURE 24 738 ASCII_Real 11 degC Temperature of the filter wheels. -999. 0. FLIGHT_SOFTWARE_VERSION_ID 25 751 ASCII_String 4 Indicates version of instrument flight software used to acquire image. GAIN_MODE_ID 26 758 ASCII_String 20 The electronics gain setting selected for this image, given in units of electrons per DN. (This is an approximate value so both cameras can use the same set of values.) IMAGE_MID_TIME 27 780 ASCII_String 22 Exposure mid-time calculated from spacecraft clock using both the coarse (seconds) and fine (subRTI) counters (UTC). (A subRTI is approximately 4 msec (1/256 second)). This value is calculated from the SPACECRAFT_CLOCK_STOP_COUNT - (EXPOSURE_DURATION/ 2) then converted to UTC. When the shutter was inhibited (ie SHUTTER_STATE_ID='DISABLED'), the IMAGE_MID_TIME = START_TIME = STOP_TIME, and all three represent the start of the exposure window during the prepare cycle of the image. IMAGE_NUMBER 28 804 ASCII_String 10 s The seconds portion of the spacecraft clock at shutter close. IMAGE_OBSERVATION_TYPE 29 817 ASCII_String 48 A multi-valued list describing the purpose(s) of this image, for example, OPNAV, science, calibration, engineering and/or support imaging. (Comes from the IMAGE_OBSERVATION_TYPE_* keywords in the IOI file parameter set description.) This list can contain up to five values where the purposes of the image are identified. More than one value may be specified. IMAGE_TIME 30 867 ASCII_String 22 Time of shutter close calculated from spacecraft clock using both the coarse (seconds) and fine (subRTI) counters (UTC). (A subRTI is approximately 4 msec (1/256 second)). When the shutter was inhibited (ie SHUTTER_STATE_ID='DISABLED'), the IMAGE_TIME = START_TIME = STOP_TIME, and all three represent the start of the exposure window during the prepare cycle of the image. INSTRUMENT_DATA_RATE 31 890 ASCII_Real 11 kb/s The rate at which data was transferred out of instrument. -999.0 if channelized data and extended header are unavailable. -999. INSTRUMENT_HOST_NAME 32 903 ASCII_String 15 Name of the spacecraft upon which this instrument resides. INSTRUMENT_ID 33 921 ASCII_String 5 Indicator of which camera took this image. INSTRUMENT_MODE_ID 34 929 ASCII_String 4 The summation mode used for this image. INSTRUMENT_NAME 35 936 ASCII_String 38 Name of the CASSINI Instrument which acquired the image data. INST_CMPRS_PARAM 36 976 ASCII_Integer 47 4-valued array. First, the lossy compression MALGO (algorithm) parameter. MALGO. Second, the lossy compression TB (block type) parameter. TB. Third, the lossy compression group-of-blocks (number of blocks per group) parameter. GOB. Fouth, the lossy compression the compression rate parameter (quantization factor). QF. -2147483648 INST_CMPRS_RATE 37 1024 ASCII_Real 23 bits/pixel 2-valued array. First, the expected average number of bits and comes from the BITS_PER_PIXEL keyword in the IOI file. Second, the actual average number of bits and is calculated during telemetry processing. 1e+32 INST_CMPRS_RATIO 38 1048 ASCII_Real 9 Ratio of expected image size to size of image received. (Calculation of this value does not include data outages due to truncated readouts or data lost in transmission.) -1e+32 0. INST_CMPRS_TYPE 39 1059 ASCII_String 8 Compression type used for the image. LIGHT_FLOOD_STATE_FLAG 40 1070 ASCII_String 4 Indicator of whether Light Flood was used just prior to taking this image. METHOD_DESC 41 1077 ASCII_String 75 This keyword describes the information and/or algorithm used to calculate the I/F value used by the ISS team to determine the EXPOSURE_DURATION. (Limited to char(75)). (Comes from the METHOD_DESC keyword in the IOI file.) MISSING_LINES 42 1154 ASCII_Integer 11 For non-lossy compressed data only, number of missing or incomplete image lines. For all data, including lossy compressed images, when data is missing, the missing pixel values are replaced by 0. 'N/A' for lossy compressed data. -2147483648 1024 0 MISSING_PACKET_FLAG 43 1167 ASCII_String 4 Indicator of whether consecutive packets were received. If set to 'YES', this flag indicates that packets needed to construct a complete image were missing. If set to 'NO', all consecutive packets were received. However, data may be missing at the beginning or end of the image. In this case, missing data would be reflected in the MISSING_LINES keyword for non-lossy data, and through visual inspection for lossy compressed data. MISSION_NAME 44 1174 ASCII_String 15 Mission name associated with this image. MISSION_PHASE_NAME 45 1192 ASCII_String 32 Mission phase of which this image is a part. OBSERVATION_ID 46 1227 ASCII_String 32 Name of observation of which this image is a part. OPTICS_TEMPERATURE 47 1261 ASCII_Real 23 degC 2-valued array. First, temperature of front optics in Celsius degrees. Note that there is no rear optics temperature for the WAC camera, so when INSTRUMENT_ID = ISSWA, the second element of the array will always be -999.0. (-999.0, -999.0) if the extended header is unavailable. Second, temperature of rear optics in Celsius degrees. Note that there is no rear optics temperature for the WAC camera, so when INSTRUMENT_ID = ISSWA, the second element of the array will always be -999.0. (-999.0, -999.0) if the extended header is unavailable. -999. 0. ORDER_NUMBER 48 1285 ASCII_Integer 11 Identifier provided by Team Lead for this image which is unique within the IOI file. This value will not be unique for parameter sets described in the IOI file with ITERATION_COUNT > 1 or with LOOP_COUNT > 1 65534 PARALLEL_CLOCK_VOLTAGE_INDEX 49 1297 ASCII_Integer 11 Commanded parallel clock voltage index. Controls clocking frequency. (Comes from the PC_VOLTAGE keyword in the IOI file.) 65534 PREPARE_CYCLE_INDEX 50 1309 ASCII_Integer 11 The element number within the Prepare Cycle table selected for this image. (see Appendix B tables) PRODUCT_CREATION_TIME 51 1321 ASCII_String 22 Time of creation of this image on the ground (Pacific local time). PRODUCT_ID 52 1345 ASCII_String 18 Unique identifier for each image commanded. Required by PDS/Cassini. The PRODUCT_ID will be constructed: SPACECRAFT_CLOCK_CNT_PARTITION'_' ISPACECRAFT_CLOCK_STOP_COUNT, where I is 'N' if the INSTRUMENT_ID is 'ISSNA', and I is 'W' if the INSTRUMENT_ID is 'ISSWA'. PRODUCT_VERSION_TYPE 53 1366 ASCII_String 11 Identifies the version of an individual data product. Always 'FINAL' for products archived with PDS/Cassini. 'PRELIMINARY' indicates additional processing is underway at IO/MIPL, for instance, to recover additional telemetry if possible. READOUT_CYCLE_INDEX 54 1379 ASCII_Integer 11 The element number within the Readout Cycle table selected for this image. (see Appendix B tables) RECEIVED_PACKETS 55 1391 ASCII_Integer 11 This keyword provides the actual number of packets received from the SSR for this image. To convert to volume in bits, multiply this value by 7616 bits/packet. This value reflects data received. In the event the image is incomplete due to an outage in the transmission, this field will not be an accurate indicator of actual volume on the SSR. 65534 SENSOR_HEAD_ELEC_TEMPERATURE 56 1403 ASCII_Real 11 Temperature of the sensor head electronics. -999. SEQUENCE_ID 57 1416 ASCII_String 4 Identifies the segment associated with this image. Note that this keyword does not come from the IOI file. Ex: 'C22', 'S19' SEQUENCE_NUMBER 58 1422 ASCII_Integer 11 Indicates the order in which this image was expected to be taken within the given observation (OBSERVATION_ID). 65534 SEQUENCE_TITLE 59 1435 ASCII_String 60 The name assigned by the Team Lead for the activity of which this image is a part. Comes from the SEQUENCE_TITLE keyword in the IOI file. Limited to 30 characters. Example = ???. SHUTTER_MODE_ID 60 1498 ASCII_String 7 Indicator of whether this exposure was part of a joint observation with the other ISS camera. SHUTTER_STATE_ID 61 1508 ASCII_String 8 Indicator of whether the shutter was enabled during the exposure. SOFTWARE_VERSION_ID 62 1519 ASCII_String 20 Ground software version used to generate this image. SPACECRAFT_CLOCK_CNT_PARTITION 63 1541 ASCII_Integer 4 Indicates the clock partition active for the SPACECRAFT_CLOCK_START_COUNT and SPACECRAFT_CLOCK_STOP_COUNT elements. Remains at '1' unless the spacecraft clock rolls over or is reset. SPACECRAFT_CLOCK_START_COUNT 64 1547 ASCII_String 16 The seconds and subRTI portions of the spacecraft clock at shutter open. Calculated from spacecraft clock of shutter close less the exposure duration. When the shutter was inhibited (ie SHUTTER_STATE_ID='DISABLED'), the SPACECRAFT_CLOCK_START_COUNT = SPACECRAFT_CLOCK_STOP_COUNT, and both represent the start of the exposure window during the prepare cycle of the image. EX: '832898283.123' UNK SPACECRAFT_CLOCK_STOP_COUNT 65 1566 ASCII_String 16 The seconds and subRTI portions of the spacecraft clock at shutter close. (A subRTI is approximately 4 msec (1/256 second)). When the shutter was inhibited (ie SHUTTER_STATE_ID='DISABLED'), the SPACECRAFT_CLOCK_STA RT_COUNT = SPACECRAFT_CLOCK_STOP_COUNT, and both represent the start of the exposure window during the prepare cycle of the image. EX: '832898284.456' UNK START_TIME 66 1584 ASCII_String 22 Time of shutter open. Calculated from spacecraft clock of shutter close less the exposure duration. Expressed in UTC format, and includes subRTI resolution. (A subRTI is approximately 4 msec (1/256 second)). When the shutter was inhibited (ie SHUTTER_STATE_ID='DISABLED'), the START_TIME = STOP_TIME, and both represent the start of the exposure window during the prepare cycle of the image. EX: 1996-158T05:53:34.000Z UNK STOP_TIME 67 1607 ASCII_String 22 Time of shutter close from spacecraft clock (UTC). Identical to IMAGE_TIME. Includes subRTI resolution. (A subRTI is approximately 4 msec (1/256 second)). When the shutter was inhibited (ie SHUTTER_STATE_ID='DISABLED'), the START_TIME = STOP_TIME, and both represent the start of the exposure window during the prepare cycle of the image. EX: 1996-158T05:53:34.000Z TARGET_DESC 68 1631 ASCII_String 75 The name of the intended target for which the exposure was calculated/selected in the given image. May include calibration type information. Limited to 75 characters. (Comes from the TARGET_DESC keyword in the IOI file.) TARGET_NAME 69 1709 ASCII_String 24 Identifies a target. The target may be a planet, satellite, ring, region, feature, asteroid or comet. TELEMETRY_FORMAT_ID 70 1736 ASCII_String 16 The telemetry mode in effect when sending data from the instrument to the spacecraft computer. VALID_MAXIMUM 71 1754 ASCII_Integer 23 2-valued array. First, indicates the minimum full well saturation level of the instrument, which is a function of INSTRUMENT_MODE_ID, INSTRUMENT_ID, and GAIN_MODE_ID, expressed as a DN value. This may exceed 4095. Second, indicates the maximum DN saturation level for the signal returned by the A/D converter. Valid values are 255 and 4095. See Appendix B tables 65534 CENTRAL_BODY_DISTANCE 72 1778 ASCII_Real 14 km Distance from spacecraft to center of primary body. -1e+32 COORDINATE_SYSTEM_NAME 73 1794 ASCII_String 32 The full name of the coordinate system to which the state vectors are referenced. DECLINATION 74 1828 ASCII_Real 11 deg Declination of camera optic axis. -1e+32 EMISSION_ANGLE 75 1840 ASCII_Real 11 deg Emission angle at aimpoint on target. 0. -1e+32 90. 1e-10 INCIDENCE_ANGLE 76 1852 ASCII_Real 11 deg Incidence angle at aimpoint on target. 0. -1e+32 90. 1e-06 LOWER_LEFT_LATITUDE 77 1864 ASCII_Real 11 deg Planetocentric latitude of lower-left pixel. -1e+32 LOWER_LEFT_LONGITUDE 78 1876 ASCII_Real 11 deg West longitude of lower-left pixel. -1e+32 LOWER_RIGHT_LATITUDE 79 1888 ASCII_Real 11 deg Planetocentric latitude of lower-right pixel. -1e+32 LOWER_RIGHT_LONGITUDE 80 1900 ASCII_Real 11 deg West longitude of lower-right pixel. -1e+32 MAXIMUM_RING_RADIUS 81 1912 ASCII_Real 14 km Maximum ringplane radius in image. -1e+32 MINIMUM_RING_RADIUS 82 1927 ASCII_Real 14 km Minimum ringplane radius in image. -1e+32 NORTH_AZIMUTH_CLOCK_ANGLE 83 1942 ASCII_Real 11 deg Direction of the northward-pointing azimuth at the aimpoint on the target body, measured clockwise. -1e+32 TARGET_NORTH_CLOCK_ANGLE 84 1954 ASCII_Real 11 deg Angle, about optic axis, between 'up' image direction and target pole projected onto image plane, measured clockwise. -1e+32 PHASE_ANGLE 85 1966 ASCII_Real 11 deg Phase angle at subspacecraft point on target. -1e+32 PIXEL_SCALE 86 1978 ASCII_Real 11 km Size of one pixel at subspacecraft point on target body. -1e+32 PLANET_CENTER 87 1990 ASCII_Real 23 2-valued array. First, Line of target body center. Second, Sample of target body center. -1e+32 RIGHT_ASCENSION 88 2014 ASCII_Real 11 deg Right ascension of camera optic axis. -1e+32 RING_CENTER_LATITUDE 89 2026 ASCII_Real 11 deg Planetocentric latitude at aimpoint on ring -1e+32 RING_CENTER_LONGITUDE 90 2038 ASCII_Real 11 deg West longitude at aimpoint on ring -1e+32 RING_EMISSION_ANGLE 91 2050 ASCII_Real 11 deg Emission angle relative to target ring northward- pointing normal at aimpoint. -1e+32 RING_INCIDENCE_ANGLE 92 2062 ASCII_Real 11 deg Incidence angle relative to target ring northward- pointing normal at aimpoint. -1e+32 RINGS_FLAG 93 2075 ASCII_String 4 If any part of the A, B, C, D, E, F, or G ring is visible in the image, this quantity is 'YES'; 'NO' otherwise. SC_PLANET_POSITION_VECTOR 94 2081 ASCII_Real 44 km 3-valued array. X, Y, Z components of the position vector from spacecraft to primary planet center, corrected for light-travel time and stellar aberration. -1e+32 SC_PLANET_VELOCITY_VECTOR 95 2126 ASCII_Real 44 km/s 3-valued array. X, Y, Z components of the velocity vector of primary planet relative to spacecraft, corrected for light-travel time. -1e+32 SC_SUN_POSITION_VECTOR 96 2171 ASCII_Real 44 km 3-valued array. X, Y, Z components of the position vector from spacecraft to sun center, corrected for light-travel time and stellar aberration. -1e+32 SC_SUN_VELOCITY_VECTOR 97 2216 ASCII_Real 44 km/s 3-valued array. X, Y, Z components of the velocity vector of sun relative to spacecraft, corrected for light-travel time. -1e+32 SC_TARGET_POSITION_VECTOR 98 2261 ASCII_Real 44 km 3-valued array. X, Y, Z components of the position vector from spacecraft to target center, corrected for light-travel time and stellar aberration. SC_TARGET_VELOCITY_VECTOR 99 2306 ASCII_Real 44 km/s 3-valued array. X, Y, Z components of the velocity vector of the target relative to spacecraft, corrected for light-travel time. -1e+32 SPICE_PRODUCT_ID 100 2352 ASCII_String 255 The names of the SPICE files used in processing the data. SUB_SOLAR_LATITUDE 101 2609 ASCII_Real 11 deg Planetocentric latitude of subsolar point on target; Ring_Subsolar_Latitude if target is a ring. -1e+32 SUB_SOLAR_LONGITUDE 102 2621 ASCII_Real 11 deg West longitude of subsolar point on target; Ring_Subsolar_Longitude if target is a ring. -1e+32 SUB_SPACECRAFT_LATITUDE 103 2633 ASCII_Real 11 deg Planetocentric latitude of subspacecraft point on target; Ring_Subspacecraft_Latitude if target is a ring. -1e+32 SUB_SPACECRAFT_LONGITUDE 104 2645 ASCII_Real 11 deg West longitude of subspacecraft point on target; Ring_Subspacecraft_Longitude if target is a ring. -1e+32 CENTER_LATITUDE 105 2657 ASCII_Real 11 deg Planetocentric latitude at aimpoint on target (or Ring_Aimpoint_Latitude if target is a ring). -1e+32 CENTER_LONGITUDE 106 2669 ASCII_Real 11 deg West longitude at aimpoint on target (or Ring_Aimpoint_Longitude if target is a ring). -1e+32 TARGET_DISTANCE 107 2681 ASCII_Real 14 km Distance from the spacecraft to the center of the target. -1e+32 TARGET_EASTERNMOST_LONGITUDE 108 2696 ASCII_Real 11 deg Easternmost longitude visible on target body. -1e+32 TARGET_NORTHERNMOST_LATITUDE 109 2708 ASCII_Real 11 deg Northernmost latitude visible on target body. -1e+32 TARGET_SOUTHERNMOST_LATITUDE 110 2720 ASCII_Real 11 deg Southernmost latitude visible on target body. -1e+32 TARGET_WESTERNMOST_LONGITUDE 111 2732 ASCII_Real 11 deg Westernmost longitude visible on target body. -1e+32 TWIST_ANGLE 112 2744 ASCII_Real 11 deg Twist angle of optic axis. TARGET_LIST 113 2757 ASCII_String 255 Name of each body visible in the image. A body is included if any part of its limb is not hidden by another body. Bodies may be obscured by rings. UPPER_LEFT_LATITUDE 114 3014 ASCII_Real 11 deg Planetocentric latitude of upper-left pixel. -1e+32 UPPER_LEFT_LONGITUDE 115 3026 ASCII_Real 11 deg West longitude of upper-left pixel. -1e+32 UPPER_RIGHT_LATITUDE 116 3038 ASCII_Real 11 deg Planetocentric latitude of upper-right pixel. -1e+32 UPPER_RIGHT_LONGITUDE 117 3050 ASCII_Real 11 deg West longitude of upper-right pixel. -1e+32 DATA_SET_NAME 118 3063 ASCII_String 60 The name given to the Cassini ISS EDR image data set. INSTRUMENT_HOST_ID 119 3126 ASCII_String 4 Unique identifier for the host where the instrument is located. PRODUCT_TYPE 120 3133 ASCII_String 4 Identifies the type of a data product within the data set. STANDARD_DATA_PRODUCT_ID 121 3140 ASCII_String 7 Used to link a data product (file) to a standard data product (collection of similar files) described within software interface specification document for a particular data set.