PDS_VERSION_ID = PDS3 RECORD_TYPE = STREAM ^HDR_TEXT = "INDEX.HDR" ^CSV_TEXT = "INDEX.CSV" ^INDEX_TABLE = "INDEX.TAB" DATA_SET_ID = "STARDUST-C/E/L-NC-2-EDR-V1.0" SPACECRAFT_NAME = "STARDUST" INSTRUMENT_NAME = "NAVIGATION CAMERA" VOLUME_ID = "SDNC_0001" OBJECT = HDR_TEXT NAME = INDEX_HEADER PUBLICATION_DATE = 2001-11-01 INTERCHANGE_FORMAT = ASCII NOTE = "The index header file contains one record that is a comma delimited list of the index table column names. This is to facilitate the use of this index file with spreadsheet applications such as EXCEL." END_OBJECT = HDR_TEXT OBJECT = CSV_TEXT NAME = INDEX_CSV PUBLICATION_DATE = 2001-11-01 INTERCHANGE_FORMAT = ASCII NOTE = "The index CSV (comma-separated value) file contains the header file along with the normal index table appended below. This file contains no new information, but is presented in this form because it is very useful on workstations which easily decode CSV files in spreadsheet applications. Each line is comma delimited list of the index table names and values. This is to facilitate the use of this index file with spreadsheet applications such as EXCEL." END_OBJECT = CSV_TEXT OBJECT = INDEX_TABLE ROWS = 67 ROW_BYTES = 828 COLUMNS = 68 INDEX_TYPE = SINGLE INTERCHANGE_FORMAT = ASCII DESCRIPTION = "The image index table contains parameters that describe the observation and camera states for each image found on the archive." OBJECT = COLUMN NAME = FRAME_SEQUENCE_NUMBER COLUMN_NUMBER = 1 DATA_TYPE = ASCII_INTEGER START_BYTE = 1 BYTES = 4 FORMAT = "I4" DESCRIPTION = "Sequential frame number of the image acquired during preflight calibration experiments." END_OBJECT = COLUMN OBJECT = COLUMN NAME = START_TIME COLUMN_NUMBER = 2 DATA_TYPE = TIME START_BYTE = 6 BYTES = 14 FORMAT = "A14" DESCRIPTION = "Time of start of observation. This time refers to the start of the integration time of the camera, presented in a human readable form." END_OBJECT = COLUMN OBJECT = COLUMN NAME = SPACECRAFT_CLOCK_START_COUNT COLUMN_NUMBER = 3 DATA_TYPE = TIME START_BYTE = 31 BYTES = 19 FORMAT = "A23" DESCRIPTION = "Time of start of observation. This time refers to the start of the integration time of the camera, presented in spacecraft clock units" END_OBJECT = COLUMN OBJECT = COLUMN NAME = FILE_NAME COLUMN_NUMBER = 4 DATA_TYPE = CHARACTER START_BYTE = 48 BYTES = 13 FORMAT = "A13" DESCRIPTION = "The file_name element is the same as the product_id from the attached PDS header and represents the permanent, unique identifier assigned to a data product by its producer. The product_id is identical to the name of the EDR file. The product_id is of the form NXXXXPPFV.IMG, where: N = Navigation Camera (fixed) XXXX = frame sequence # ordered sequentially by time. PP = Mission Phase ( possible values ) PL: Prelaunch Data C1: Cruise 1 EE: Earth/Moon Encounter C2: Cruise 2 WE: Wild-2 Encounter C3: Cruise 3 ER: Earth Return C4: Cruise 4 F = filter number, possible values: 0: Navigation Filter 1: NH2 Filter 2: Oxygen ( O[1D] ) Filter 3: C2 ( & Blue ) Filter 4: Yellow Continuum Filter 5: Red Continuum Filter 6: Infrared Continuum Filter 7: High Resolution Filter V = Image version number IMG = file extension (fixed)" END_OBJECT = COLUMN OBJECT = COLUMN NAME = PATH_NAME COLUMN_NUMBER = 5 DATA_TYPE = CHARACTER START_BYTE = 64 BYTES = 5 FORMAT = "A5" DESCRIPTION = "The path name element refers to the complete directory location name of the file. The syntax of the path name follows the UNIX convention where subdirectories are signified by a slash character (/)." END_OBJECT = COLUMN OBJECT = COLUMN NAME = EXPOSURE_DURATION COLUMN_NUMBER = 6 DATA_TYPE = ASCII_INTEGER START_BYTE = 71 BYTES = 5 UNIT = "MS" FORMAT = "I5" DESCRIPTION = "Exposure duration (integration time) of the image observation expressed in milliseconds." END_OBJECT = COLUMN OBJECT = COLUMN NAME = FILTER_NAME COLUMN_NUMBER = 7 DATA_TYPE = CHARACTER START_BYTE = 78 BYTES = 6 FORMAT = "A6" DESCRIPTION = "The Filter Name corresponds to the well-known names for filters as assigned by the Stardust Science Team. Each of the filter position values has a corresponding value: 0: OpNav 1: NH2 2: Oxygen 3: C2 4: Yellow 5: Red 6: NIR 7: HiRes END_OBJECT = COLUMN OBJECT = COLUMN NAME = FILTER_POSITION COLUMN_NUMBER = 8 DATA_TYPE = CHARACTER START_BYTE = 86 BYTES = 1 FORMAT = "A1" DESCRIPTION = "Filter position. The filter position are assigned based on their position on the filter wheel. There are 10 possible values for this quantity: 0: Navigation Filter 1: NH2 Filter 2: Oxygen ( O[1D] ) Filter 3: C2 ( & Blue ) Filter 4: Yellow Continuum Filter 5: Red Continuum Filter 6: Infrared Continuum Filter 7: High Resolution Filter" END_OBJECT = COLUMN OBJECT = COLUMN NAME = FILTER_CENTER_WAVELENGTH COLUMN_NUMBER = 9 DATA_TYPE = ASCII_REAL START_BYTE = 88 BYTES = 5 FORMAT = "E5.1" UNIT = "NM" DESCRIPTION = "Each filter has a corresponding center wavelength. This value is measured in nanometers. The values are: 0: 698.8 nm 1: 665.1 nm 2: 633.6 nm 3: 513.2 nm 4: 580.2 nm 5: 712.9 nm 6: 874.6 nm 7: 596.4 nm" END_OBJECT = COLUMN OBJECT = COLUMN NAME = FILTER_FULL_WIDTH_HALF_MAX COLUMN_NUMBER = 10 DATA_TYPE = ASCII_REAL START_BYTE = 94 BYTES = 7 FORMAT = "E5.1" UNIT = "NM" DESCRIPTION = "Each filter has a corresponding full-width-half-max value. This value represents the width of the filter at the half transmission point and is measured in nanometers. The values are: 0: 400 nm 1: 15 nm 2: 12 nm 3: 12 nm 4: 4 nm 5: 6 nm 6: 30 nm 7: 200 nm" END_OBJECT = COLUMN OBJECT = COLUMN NAME = FOCAL_PLANE_TEMPERATURE COLUMN_NUMBER = 11 DATA_TYPE = ASCII_REAL START_BYTE = 100 BYTES = 6 FORMAT = "F6.2" UNIT = "KELVIN" DESCRIPTION = "Temperature of the Charge Coupled Device (CCD)." END_OBJECT = COLUMN OBJECT = COLUMN NAME = SCAN_MIRROR_TEMPERATURE COLUMN_NUMBER = 12 DATA_TYPE = ASCII_REAL START_BYTE = 107 BYTES = 6 FORMAT = "F6.2" UNIT = "KELVIN" DESCRIPTION = "Temperature of the Scan Mirror." END_OBJECT = COLUMN OBJECT = COLUMN NAME = LINES COLUMN_NUMBER = 13 DATA_TYPE = ASCII_INTEGER START_BYTE = 114 BYTES = 4 FORMAT = "I4" DESCRIPTION = " The lines element indicates the total number of data instances along the vertical axis of an image." END_OBJECT = COLUMN OBJECT = COLUMN NAME = LINE_SAMPLES COLUMN_NUMBER = 14 DATA_TYPE = ASCII_INTEGER START_BYTE = 119 BYTES = 4 FORMAT = "I4" DESCRIPTION = " The lines element indicates the total number of data instances along the horizontal axis of an image." END_OBJECT = COLUMN OBJECT = COLUMN NAME = MINIMUM COLUMN_NUMBER = 15 DATA_TYPE = ASCII_INTEGER START_BYTE = 124 BYTES = 4 FORMAT = "I4" DESCRIPTION = "The smallest value occurring in a given instance of the image array excluding any prefix or suffix bytes." END_OBJECT = COLUMN OBJECT = COLUMN NAME = MAXIMUM COLUMN_NUMBER = 16 DATA_TYPE = ASCII_INTEGER START_BYTE = 129 BYTES = 4 FORMAT = "I4" DESCRIPTION = "The largest value occurring in a given instance of the image array, excluding any prefix or suffix bytes." END_OBJECT = COLUMN OBJECT = COLUMN NAME = MEAN COLUMN_NUMBER = 17 DATA_TYPE = ASCII_REAL START_BYTE = 134 BYTES = 8 FORMAT = "F8.3" DESCRIPTION = "The mean value of the image array, excluding any prefix and suffix bytes." END_OBJECT = COLUMN OBJECT = COLUMN NAME = STANDARD_DEVIATION COLUMN_NUMBER = 18 DATA_TYPE = ASCII_REAL START_BYTE = 143 BYTES = 8 FORMAT = "F8.3" DESCRIPTION = "The stardard deviation of the image array, excluding any prefix or suffix bytes." END_OBJECT = COLUMN OBJECT = COLUMN NAME = SATURATED_PIXELS COLUMN_NUMBER = 19 DATA_TYPE = ASCII_INTEGER START_BYTE = 152 BYTES = 7 FORMAT = "I7" DESCRIPTION = "The number of pixels in the image whose pixel intensity value are equal to the maximum allowable digital number for the image. For 8-bit data, that maximum value is 255. For 12-bit data, that value is 4095." END_OBJECT = COLUMN OBJECT = COLUMN NAME = LINE_PREFIX_BYTES COLUMN_NUMBER = 20 DATA_TYPE = ASCII_INTEGER START_BYTE = 160 BYTES = 2 FORMAT = "I2" DESCRIPTION = "The number of non-image bytes at the beginning of each line." END_OBJECT = COLUMN OBJECT = COLUMN NAME = LINE_SUFFIX_BYTES COLUMN_NUMBER = 21 DATA_TYPE = ASCII_INTEGER START_BYTE = 163 BYTES = 2 FORMAT = "I2" DESCRIPTION = "The number of non-image bytes at the end of each line." END_OBJECT = COLUMN OBJECT = COLUMN NAME = DATA_STREAM_TYPE COLUMN_NUMBER = 22 DATA_TYPE = CHARACTER START_BYTE = 167 BYTES = 9 FORMAT = "A9" DESCRIPTION = "The data_stream_type element identifies a particular type of data stream to which the given data product is related. Two possible values exists for this keyword: CRUISE and ENCOUNTER. This refers to the mode the spacecraft was in when the image data was acquired." END_OBJECT = COLUMN OBJECT = COLUMN NAME = TELEMETRY_MUX_MODE_ID COLUMN_NUMBER = 23 DATA_TYPE = CHARACTER START_BYTE = 178 BYTES = 1 FORMAT = "A1" DESCRIPTION = "The telemetry_mux_mode_id element indicates that the navcam telemetry multiplexor has sampled all digital engineering measurements. This value should always be 1 by the nature of the timing of the sampling of the multiplexor." END_OBJECT = COLUMN OBJECT = COLUMN NAME = FILTER_WHEEL_IN_MOTION_MODE_ID COLUMN_NUMBER = 24 DATA_TYPE = CHARACTER START_BYTE = 180 BYTES = 1 FORMAT = "A1" DESCRIPTION = "The filter_wheel_in_motion_mode_id indicates that the filter wheel is in motion. Upon completion of the movement of the filter wheel, this value is set to a 0." END_OBJECT = COLUMN OBJECT = COLUMN NAME = EXPOSURE_ENABLE_MODE_ID COLUMN_NUMBER = 25 DATA_TYPE = CHARACTER START_BYTE = 182 BYTES = 1 FORMAT = "A1" DESCRIPTION = "The exposure_enable_mode_id element indicates that the shutter has been enabled to open, and if successfully closed, should have a value of 0." END_OBJECT = COLUMN OBJECT = COLUMN NAME = CCD_HEATER_MODE_ID COLUMN_NUMBER = 26 DATA_TYPE = CHARACTER START_BYTE = 184 BYTES = 1 FORMAT = "A1" DESCRIPTION = "The ccd_heater_mode_id element indicates if the CCD heater is on, with a value of 1, or off, with a value of 0. This value is controlled independently by spacecraft commands." END_OBJECT = COLUMN OBJECT = COLUMN NAME = SLEEP_MODE_ID COLUMN_NUMBER = 27 DATA_TYPE = CHARACTER START_BYTE = 186 BYTES = 1 FORMAT = "A1" DESCRIPTION = "The sleep_mode_id element indicates if the camera is in sleep mode, or in a low-power state. A value of 1 indicates that sleep mode is enables and a value of 0 indicates that sleep mode is disables. Once sleep mode has been enabled, it can only be disabled by cycling power to the navcam." END_OBJECT = COLUMN OBJECT = COLUMN NAME = CAL_LAMP_MODE_ID COLUMN_NUMBER = 28 DATA_TYPE = CHARACTER START_BYTE = 188 BYTES = 1 FORMAT = "A1" DESCRIPTION = "The cal_lamp_mode_id element indicates if the calibration lamp is on or not. The calibration lamp is on if the value is 1 and is off if the value is 0." END_OBJECT = COLUMN OBJECT = COLUMN NAME = QUANTIZATION_MODE_ID COLUMN_NUMBER = 29 DATA_TYPE = CHARACTER START_BYTE = 190 BYTES = 1 FORMAT = "A1" DESCRIPTION = "The quantization_mode_id element indicates if the pixel data is expressed as either 8 or 12 bit data. The non-quantized data is 12 bit, stored as 16 bit values with the upper nibble padded with zeros. The Navcam has an on-board quantization process which converts 12 bit data from the CCD into 8 bit data for transmission. This conversion is in fact a square-root style quantization process and there is loss. Consult the calibration documentation to unpack the 8 bit data into its 12 bit approximations." END_OBJECT = COLUMN OBJECT = COLUMN NAME = FIFO_EMPTY_MODE_ID COLUMN_NUMBER = 30 DATA_TYPE = CHARACTER START_BYTE = 192 BYTES = 1 FORMAT = "A1" DESCRIPTION = "The fifo_empty_mode_id indicates if the readout fifo is empty or not. When this value is set to 1, the fifo is empty and when it is 0, the fifo is not empty." END_OBJECT = COLUMN OBJECT = COLUMN NAME = FIFO_FULL_MODE_ID COLUMN_NUMBER = 31 DATA_TYPE = CHARACTER START_BYTE = 194 BYTES = 1 FORMAT = "A1" DESCRIPTION = "The fifo_full_mode_id indicates if the readout fifo is full or not. When this value is set to 1, the fifo is full and when it is 0, the fifo is not full. When the fifo becomes full, pixel data is overwritten in the Navcam's fifo. This value represents the state of the fifo just before the new image was taken and represents the previous image's success." END_OBJECT = COLUMN OBJECT = COLUMN NAME = BULB_MODE_ID COLUMN_NUMBER = 32 DATA_TYPE = CHARACTER START_BYTE = 196 BYTES = 1 FORMAT = "A1" DESCRIPTION = "The bulb_mode_id element indicates if the shutter has been commanded open. As long as this value remains a 1, the shutter will remain open. This value is controlled only by spacecraft commands. When a command is received from the spacecraft to set the bulb_mode value to 0, the shutter is closed. No image is acquired as a result of a bulb_mode off command. This value is used to take images whose exposure duration must be longer than 20 seconds." END_OBJECT = COLUMN OBJECT = COLUMN NAME = FILTER_STEPS COLUMN_NUMBER = 33 DATA_TYPE = CHARACTER START_BYTE = 198 BYTES = 1 FORMAT = "A1" DESCRIPTION = "The filter_steps element indicates how many filters were traversed to reach the filter of interest. To move from one filter to the next takes one second, so a three step move would take three seconds." END_OBJECT = COLUMN OBJECT = COLUMN NAME = FILTER_PARITY COLUMN_NUMBER = 34 DATA_TYPE = CHARACTER START_BYTE = 200 BYTES = 1 FORMAT = "A1" DESCRIPTION = "The filter_parity element is an odd parity bit to allow for identification of a faulty bit amongst one of the three bits needed to represent the filter number." END_OBJECT = COLUMN OBJECT = COLUMN NAME = NAVCAM_DIGITAL_TELEMETRY COLUMN_NUMBER = 35 DATA_TYPE = CHARACTER START_BYTE = 203 BYTES = 20 FORMAT = "A20" DESCRIPTION = "The navcam_digital_telemetry element is used to indicate the eight bytes returned from the camera at the completion of the acquisition of an image. The upper nibbles of each of the eight bytes should follow the pattern of 0x89abcdef. This is a check that can be used to determine if the camera is functioning properly. The lower nibbles of each of the eight bytes were used in determining many of the other parameters given in the other columns of data." END_OBJECT = COLUMN OBJECT = COLUMN NAME = SCAN_MIRROR_ANGLE COLUMN_NUMBER = 36 DATA_TYPE = ASCII_REAL START_BYTE = 225 BYTES = 9 FORMAT = "F9.5" DESCRIPTION = "The scan_mirror_angle element indicates the angle of the scan mirror at the instant the image was taken. The mirror sweeps through the plane formed by the spacecraft X and Z axes. When the mirror is at 0 degrees, the light path is essentially from the +X axis. As the mirror rotates to +90 degrees, the light path is from the -Z axis. When the mirror moves on to +180 degrees, the light path is in the direction of the -X axis. The range of the mirror is approximately 0 degrees to +200 degrees." END_OBJECT = COLUMN OBJECT = COLUMN NAME = SCAN_MIRROR_LAST_COMMANDED_VELOCITY COLUMN_NUMBER = 37 DATA_TYPE = ASCII_REAL START_BYTE = 235 BYTES = 9 FORMAT = "F9.5" DESCRIPTION = "The scan_mirror_last_commanded_velocity element indicates the last commanded velocity for the scan mirror. The scan mirror is not commanded to a position, but rather is reset to an initial position and is then commanded at a specific velocity for a specific amount of time. The value given here is that commanded velocity." END_OBJECT = COLUMN OBJECT = COLUMN NAME = SCAN_MIRROR_MOTOR_MODE_ID COLUMN_NUMBER = 38 DATA_TYPE = CHARACTER START_BYTE = 245 BYTES = 1 FORMAT = "A1" DESCRIPTION = "The scan_mirror_motor_mode_id indicates if the scan mirror motor is either on or off. When the value is a 1, the motor is on. When the value is a 0, the motor is off." END_OBJECT = COLUMN OBJECT = COLUMN NAME = MISSION_PHASE_NAME COLUMN_NUMBER = 39 DATA_TYPE = CHARACTER START_BYTE = 248 BYTES = 20 FORMAT = "A20" DESCRIPTION = "The mission_phase_name element provides the commonly-used identifier of a mission phase. The mission phases and their abbreviations: PL: Prelaunch Data C1: Cruise 1 EE: Earth/Moon Encounter C2: Cruise 2 WE: Wild-2 Encounter C3: Cruise 3 ER: Earth Return C4: Cruise 4" END_OBJECT = COLUMN OBJECT = COLUMN NAME = TIME_FROM_CLOSEST_APPROACH COLUMN_NUMBER = 40 DATA_TYPE = ASCII_REAL START_BYTE = 270 BYTES = 9 FORMAT = "F9.3" UNIT = "DAYS" DESCRIPTION = "The time_from_closest_approach element provides the time with respect to periapsis or closest approach." END_OBJECT = COLUMN OBJECT = COLUMN NAME = RIGHT_ASCENSION COLUMN_NUMBER = 41 DATA_TYPE = ASCII_REAL START_BYTE = 280 BYTES = 9 FORMAT = "F9.4" DESCRIPTION = "The right_ascension element provides the right ascension value. Right_ascension is defined as the arc of the celestial equator between the vernal equinox and the point where the hour circle through the given body intersects the Earth's mean equator (reckoned eastward)." END_OBJECT = COLUMN OBJECT = COLUMN NAME = DECLINATION COLUMN_NUMBER = 42 DATA_TYPE = ASCII_REAL START_BYTE = 290 BYTES = 9 FORMAT = "F9.4" DESCRIPTION = "The declination element provides the value of an angle, corresponding to latitude, used to fix position on the celestial sphere. Declination is measured positive north and negative south of the celestial equator, and is defined relative to a specified reference period or epoch." END_OBJECT = COLUMN OBJECT = COLUMN NAME = TWIST_ANGLE COLUMN_NUMBER = 43 DATA_TYPE = ASCII_REAL START_BYTE = 300 BYTES = 9 FORMAT = "F9.4" DESCRIPTION = "The twist_angle element provides the angle of rotation about an optical axis relative to celestial coordinates. The RIGHT_ASCENSION, DECLINATION and TWIST_ANGLE elements define the pointing direction and orientation of an image or scan platform." END_OBJECT = COLUMN OBJECT = COLUMN NAME = RETICLE_POINT_RA COLUMN_NUMBER = 44 DATA_TYPE = ASCII_REAL START_BYTE = 310 ITEMS = 4 ITEM_OFFSET = 11 ITEM_BYTES = 9 BYTES = 39 FORMAT = "F9.4" DESCRIPTION = "These parameters refer to the right ascension of the principal points of the camera. For the left pixel of the camera (line 1, sample 1), the upper right pixel (line 1 , last sample), lower left (last line, sample 1), and lower right(last line, last sample)." END_OBJECT = COLUMN OBJECT = COLUMN NAME = RETICLE_POINT_DEC COLUMN_NUMBER = 45 DATA_TYPE = ASCII_REAL START_BYTE = 350 ITEMS = 4 ITEM_OFFSET = 11 ITEM_BYTES = 9 BYTES = 39 FORMAT = "F9.4" DESCRIPTION = "These parameters refer to the declination of the principal points of the camera. For the left pixel of the camera (line 1, sample 1), the upper right pixel (line 1 , last sample), lower left (last line, sample 1), and lower right(last line, last sample)." END_OBJECT = COLUMN OBJECT = COLUMN NAME = EMEJ2000_SC_QUATERNION COLUMN_NUMBER = 46 DATA_TYPE = ASCII_REAL START_BYTE = 390 ITEMS = 4 ITEM_OFFSET = 10 ITEM_BYTES = 8 BYTES = 35 FORMAT = "F8.5" DESCRIPTION = "The emej2000_sc_quaternion element identifies the quaternion required to rotate a vector in Earth-Mean-Equator J2000 coordinates into the spacecraft frame." END_OBJECT = COLUMN OBJECT = COLUMN NAME = TARGET_NAME COLUMN_NUMBER = 47 DATA_TYPE = CHARACTER START_BYTE = 427 BYTES = 7 FORMAT = "A7" DESCRIPTION = "The target_name element identifies a target. The target may be a planet, satellite, ring, region, feature, asteroid or comet." END_OBJECT = COLUMN OBJECT = COLUMN NAME = SC_TARGET_POSITION_VECTOR COLUMN_NUMBER = 48 DATA_TYPE = ASCII_REAL START_BYTE = 436 ITEMS = 3 ITEM_OFFSET = 14 ITEM_BYTES = 12 BYTES = 39 FORMAT = "F12.1" DESCRIPTION = "The sc_target_position_vector element indicates the x-, y-, z- components of the position vector from observer to target center expressed in J2000 coordinates, and corrected for light time and stellar aberration, evaluated at epoch at which image was taken." END_OBJECT = COLUMN OBJECT = COLUMN NAME = SC_TARGET_VELOCITY_VECTOR COLUMN_NUMBER = 49 DATA_TYPE = ASCII_REAL START_BYTE = 475 ITEMS = 3 ITEM_OFFSET = 14 ITEM_BYTES = 12 BYTES = 39 FORMAT = "F12.1" DESCRIPTION = "The sc_target_velocity_vector element indicates the x-, y-, z- components of the velocity vector from observer to target center expressed in J2000 coordinates, and corrected for light time and stellar aberration, evaluated at epoch at which image was taken." END_OBJECT = COLUMN OBJECT = COLUMN NAME = TARGET_CENTER_DISTANCE COLUMN_NUMBER = 50 DATA_TYPE = ASCII_REAL START_BYTE = 514 BYTES = 12 FORMAT = "F12.1" DESCRIPTION = "The target_center_distance element provides the distance between an instrument and the center of mass of the named target." END_OBJECT = COLUMN OBJECT = COLUMN NAME = SUN_TARGET_POSITION_VECTOR COLUMN_NUMBER = 51 DATA_TYPE = ASCII_REAL START_BYTE = 527 ITEMS = 3 ITEM_OFFSET = 14 ITEM_BYTES = 12 BYTES = 39 FORMAT = "F12.1" DESCRIPTION = "The sun_target_position_vector element indicates the x-, y-, z- components of the position vector from sun to target center expressed in J2000 coordinates, and corrected for light time and stellar aberration, evaluated at epoch at which image was taken." END_OBJECT = COLUMN OBJECT = COLUMN NAME = SC_TARGET_VELOCITY_VECTOR COLUMN_NUMBER = 52 DATA_TYPE = ASCII_REAL START_BYTE = 566 ITEMS = 3 ITEM_OFFSET = 14 ITEM_BYTES = 12 BYTES = 39 FORMAT = "F12.1" DESCRIPTION = "The sun_target_velocity_vector element indicates the x-, y-, z- components of the velocity vector from sun to target center expressed in J2000 coordinates, and corrected for light time and stellar aberration, evaluated at epoch at which image was taken." END_OBJECT = COLUMN OBJECT = COLUMN NAME = SUN_TARGET_CENTER_DISTANCE COLUMN_NUMBER = 53 DATA_TYPE = ASCII_REAL START_BYTE = 605 BYTES = 12 FORMAT = "F12.1" DESCRIPTION = "The sun_target_center_distance element provides the distance between the sun and the center of mass of the named target." END_OBJECT = COLUMN OBJECT = COLUMN NAME = CENTER_LATITUDE COLUMN_NUMBER = 54 DATA_TYPE = ASCII_REAL START_BYTE = 618 BYTES = 9 FORMAT = "F9.4" DESCRIPTION = "The center_latitude element provides the latitude of the surface intercept point of the boresight of the camera." END_OBJECT = COLUMN OBJECT = COLUMN NAME = CENTER_LONGITUDE COLUMN_NUMBER = 55 DATA_TYPE = ASCII_REAL START_BYTE = 628 BYTES = 9 FORMAT = "F9.4" DESCRIPTION = "The center_longitude element provides the longitude of the surface intercept point of the boresight of the camera." END_OBJECT = COLUMN OBJECT = COLUMN NAME = HORIZONTAL_PIXEL_SCALE COLUMN_NUMBER = 56 DATA_TYPE = ASCII_REAL START_BYTE = 638 BYTES = 9 FORMAT = "F9.4" DESCRIPTION = "The horizontal_pixel_scale element indicates the horizontal picture scale." END_OBJECT = COLUMN OBJECT = COLUMN NAME = VERTICAL_PIXEL_SCALE COLUMN_NUMBER = 57 DATA_TYPE = ASCII_REAL START_BYTE = 648 BYTES = 9 FORMAT = "F9.4" DESCRIPTION = "The vertical_pixel_scale element indicates the vertical picture scale." END_OBJECT = COLUMN OBJECT = COLUMN NAME = SMEAR_MAGNITUDE COLUMN_NUMBER = 58 DATA_TYPE = ASCII_REAL START_BYTE = 658 BYTES = 9 FORMAT = "F9.4" DESCRIPTION = "The smear_magnitude element indicates how far an image was smeared during an exposure." END_OBJECT = COLUMN OBJECT = COLUMN NAME = SMEAR_AZIMUTH COLUMN_NUMBER = 59 DATA_TYPE = ASCII_REAL START_BYTE = 668 BYTES = 9 FORMAT = "F9.4" DESCRIPTION = "The smear_azimuth element indicates the direction in which an image was smeared. The values of this angle increment in a clockwise direction from a horizontal reference line." END_OBJECT = COLUMN OBJECT = COLUMN NAME = RETICLE_POINT_LATITUDE COLUMN_NUMBER = 60 DATA_TYPE = ASCII_REAL START_BYTE = 678 ITEMS = 4 ITEM_OFFSET = 11 ITEM_BYTES = 9 BYTES = 39 FORMAT = "F9.4" DESCRIPTION = "The reticle_point_latitude element provides the latitude of the surface intercept points of the principle points of the camera, defined as the upper left pixel of the camera (line 1,sample 1), the upper right pixel (line 1, last sample), lower left (last line, sample 1), and lower right (last line, last sample)." END_OBJECT = COLUMN OBJECT = COLUMN NAME = RETICLE_POINT_LONGITUDE COLUMN_NUMBER = 61 DATA_TYPE = ASCII_REAL START_BYTE = 718 ITEMS = 4 ITEM_OFFSET = 11 ITEM_BYTES = 9 BYTES = 39 FORMAT = "F9.4" DESCRIPTION = "The reticle_point_longitude element provides the longitude of the surface intercept points of the principle points of the camera, defined as the upper left pixel of the camera (line 1,sample 1), the upper right pixel (line 1, last sample), lower left (last line, sample 1), and lower right (last line, last sample)." END_OBJECT = COLUMN OBJECT = COLUMN NAME = SUB_SPACECRAFT_LATITUDE COLUMN_NUMBER = 62 DATA_TYPE = ASCII_REAL START_BYTE = 758 BYTES = 9 FORMAT = "F9.4" DESCRIPTION = "The sub_spacecraft_latitude element provides the latitude of the subspacecraft point. The subspacecraft point is that point on a body which lies directly beneath the spacecraft." END_OBJECT = COLUMN OBJECT = COLUMN NAME = SUB_SPACECRAFT_LONGITUDE COLUMN_NUMBER = 63 DATA_TYPE = ASCII_REAL START_BYTE = 768 BYTES = 9 FORMAT = "F9.4" DESCRIPTION = "The sub_spacecraft_longitude element provides the longitude of the subspacecraft point. The subspacecraft point is that point on a body which lies directly beneath the spacecraft." END_OBJECT = COLUMN OBJECT = COLUMN NAME = SUB_SPACECRAFT_AZIMUTH COLUMN_NUMBER = 64 DATA_TYPE = ASCII_REAL START_BYTE = 778 BYTES = 9 FORMAT = "F9.4" DESCRIPTION = "The sub_spacecraft_azimuth element provides the value of the angle between the line from the center of an image to the subspacecraft point and a horizontal reference line (in the image plane) extending from the image center to the middle right edge of the image. The values of this angle increase in a clockwise direction." END_OBJECT = COLUMN OBJECT = COLUMN NAME = SPACECRAFT_ALTITUDE COLUMN_NUMBER = 65 DATA_TYPE = ASCII_REAL START_BYTE = 788 BYTES = 9 FORMAT = "F9.4" DESCRIPTION = "The spacecraft_altitude element provides the distance from the spacecraft to a reference surface of the target body measured normal to that surface." END_OBJECT = COLUMN OBJECT = COLUMN NAME = PHASE_ANGLE COLUMN_NUMBER = 66 DATA_TYPE = ASCII_REAL START_BYTE = 798 BYTES = 9 FORMAT = "F9.4" DESCRIPTION = "The phase_angle element provides a measure of the relationship between the instrument viewing position and incident illumination (such as solar light). Phase_angle is measured at the target; it is the angle between a vector to the illumination source and a vector to the instrument. If not specfied, the target is assumed to be at the center of the instrument field of view. If illumination is from behind the instrument, phase_angle will be small." END_OBJECT = COLUMN OBJECT = COLUMN NAME = INCIDENCE_ANGLE COLUMN_NUMBER = 67 DATA_TYPE = ASCII_REAL START_BYTE = 808 BYTES = 9 FORMAT = "F9.4" DESCRIPTION = "The incidence_angle element provides a measure of the lighting condition at the intercept point. Incidence angle is the angle between the local vertical at the intercept point (surface) and a vector from the intercept point to the sun. The incidence_angle varies from 0 degrees when the intercept point coincides with the sub_solar point to 90 degrees when the intercept point is at the terminator (i.e., in the shadowed or dark portion of the target body). Thus, higher values to the middle right edge of the image. The values of this angle increase in a clockwise direction. of incidence_angle indicate the existence of a greater number of surface shadows." END_OBJECT = COLUMN OBJECT = COLUMN NAME = EMISSION_ANGLE COLUMN_NUMBER = 68 DATA_TYPE = ASCII_REAL START_BYTE = 818 BYTES = 9 FORMAT = "F9.4" DESCRIPTION = "The emission_angle element provides the value of the angle between the surface normal vector at the intercept point and a vector from the intercept point to the spacecraft. The emission_angle varies from 0 degrees when the spacecraft is viewing the subspacecraft point (nadir viewing) to 90 degrees when the intercept is tangent to the surface of the target body. Thus, higher values of emission_angle indicate more oblique viewing of the target. Values in the range of 90 to 180 degrees are possible for ring data." END_OBJECT = COLUMN END_OBJECT = INDEX_TABLE END