PDS_VERSION_ID = PDS3 RECORD_TYPE = STREAM OBJECT = TEXT INTERCHANGE_FORMAT = ASCII PUBLICATION_DATE = 2011-11-22 NOTE = "Explanation of labels for STARDUST Navcam Preflight Calibration PDS images labels." END_OBJECT = TEXT END Example label ============= PDS_VERSION_ID = PDS3 /*** FILE FORMAT ***/ RECORD_TYPE = FIXED_LENGTH RECORD_BYTES = 2880 FILE_RECORDS = 1486 /*** POINTERS TO OBJECTS IN FILE ***/ ^FITS_HEADER = ("nc370034.fit",1) ^IMAGE = ("nc370034.fit",2) /*** GENERAL DATA DESCRIPTION PARAMETERS ***/ MISSION_NAME = "STARDUST" DATA_SET_ID = "STARDUST-CAL-NC-2-PREFLIGHT-V2.0" OBSERVATION_NAME = "CALIBRATION AT MINUS 30 DEGREES C" OBSERVATION_TYPE = "-30" TEST_PHASE_NAME = "-30 C" PRODUCT_ID = "NC370034.FIT" IMAGE_NUMBER = "144754" ORIGINAL_PRODUCT_ID = "usd9898-144754.pds" PRODUCER_INSTITUTION_NAME = "JPL/ACT" PRODUCT_TYPE = "EDR" SOFTWARE_NAME = "ACT DMAPKTDECOM 1.0" MISSION_PHASE_NAME = "PREFLIGHT CALIBRATION" TARGET_NAME = "CALIBRATION" FRAME_SEQUENCE_NUMBER = 34 /*** TIME PARAMETERS ***/ START_TIME = 1998-04-08T14:47:54 STOP_TIME = "N/A" PRODUCT_CREATION_TIME = 2012-08-14T09:39:13 /*** CAMERA RELATED PARAMETERS ***/ INSTRUMENT_NAME = "NAVIGATION CAMERA" INSTRUMENT_ID = "NAVCAM" EXPOSURE_DURATION = 0.020 CALIBRATION_LAMP_STATE_FLAG = "OFF" SQRT_COMPRESSION_FLAG = "FALSE" FILTER_NUMBER = "7" FILTER_NAME = "HiRes" CENTER_FILTER_WAVELENGTH = 596.4 BANDWIDTH = 200.0 /*** CALIBRATION EQUIPMENT PARAMETERS ***/ MEASUREMENT_SOURCE_DESC = "KEITHLY 607 ELECTROMETER" NOTE = "RADIANCE = 0.981 " /*** TEMPERATURE PARAMETERS IN ***/ INSTRUMENT_TEMPERATURE = 306.95 FOCAL_PLANE_TEMPERATURE = 243.15 /*** DESCRIPTION OF OBJECTS CONTAINED IN THE FILE ***/ OBJECT = FITS_HEADER HEADER_TYPE = "FITS" BYTES = 2880 RECORDS = 1 END_OBJECT = FITS_HEADER OBJECT = IMAGE LINES = 1024 LINE_SAMPLES = 1044 AXIS_ORDER_TYPE = "FIRST_INDEX_FASTEST" SAMPLE_TYPE = MSB_UNSIGNED_INTEGER SAMPLE_BITS = 16 SAMPLE_DISPLAY_DIRECTION = "RIGHT" LINE_DISPLAY_DIRECTION = "UP" SATURATED_PIXEL_COUNT = 0 END_OBJECT = IMAGE END General notes regarding label ============================= * Strings appear in quotes. * Integers and PDS Times do not take quotes. * Lists are enclosed within {} type brackets. * If a field is unknown, "UNK" may be entered. * If a field is not applicable, "N/A" may be entered. * Fields can spill freely, with or without white space, onto following lines. Definition of Keywords/Values from the PDS Data Dictionary: ====================================================================== PDS_VERSION_ID The pds_version_id Keywords indicates the version number of the PDS standards documents that is valid when a data product label is created. Values for the PDS_VERSION_ID are formed by appending the integer for the latest version number to the letters 'PDS'. Example: PDS3. RECORD_TYPE The record_type keyword indicates the record format of a file. Note: In the PDS, when record_type is used in a detached label file it always describes its corresponding detached data file, not the label file itself. The use of record_type along with other file-related data elements is fully described in the PDS Standards Reference. RECORD_BYTES The record_bytes keyword indicates the number of bytes in a physical file record, including record terminators and separators. FILE_RECORDS The file_records keyword indicates the number of physical file records, including both label records and data records. ^FITS_HEADER The ^fits_header pointer represents the record offset to the FITS header records within the named data file. A pointer value of 1 indicates the FITS header record starts at the first record (i.e., at the beginning) of the data file. ^IMAGE The ^image pointer represents a record offset to the image within the named data file. A pointer value of 2 indicates the FITS header record starts at the second record (i.e., 2880 bytes) into the data file. MISSION_NAME The mission_name element identifies a major planetary mission or project. A given planetary mission may be associated with one or more spacecraft. DATA_SET_ID The data_set_id element is a unique alphanumeric identifier for a data set or a data product. The data_set_id value for a given data set or product is constructed according to flight project naming conventions. In most cases the data_set_id is an abbreviation of the data_set_name. Example value: STARDUST-CAL-NC-2-PREFLIGHT-V2.0. OBSERVATION_NAME The observation_name element provides the identifier for an observation or sequence of commands. For this dataset, this keyword has 3 possibilities, based on the day the calibration was completed: 4/08/98 "CALIBRATION AT MINUS 30 DEGREES C" 4/09/98 "CALIBRATION AT MINUS 40 DEGREES C" 4/10/98 "CALIBRATION AT MINUS 50 DEGREES C" OBSERVATION_TYPE The observation_type element identifies the general type of an observation. This keyword has 3 possibilities, based on the day the calibration was completed: 4/08/98 "-30" 4/09/98 "-40" 4/10/98 "-50" TEST_PHASE_NAME The test_phase_name provides the name of a testing period or phase. This keyword has 3 possibilities, based on the day the calibration was completed: 4/08/98 "-30 C" 4/09/98 "-40 C" 4/10/98 "-50 C" PRODUCT_ID The product_id data element represents a permanent, unique identifier assigned to a data product by its producer. Note: In the PDS, the value assigned to product_id must be unique within its data set. This value represents the actual name of the image file on the archive. The output directory is also available. IMAGE_NUMBER The image_number provides the original number assigned to this observation during testing. ORIGINAL_PRODUCT_ID The original_product_id element provides the temporary product identifier that was assigned to a product during active flight operations which was eventually replaced by a permanent id (see product_id). In this dataset, this value represents the original filename recorded by the calibration equipment. This name can be linked back to the original calibration log files. PRODUCER_INSTITUTION_NAME The producer_institution_name element identifies a university, research center, NASA center or other institution associated with the production of a data set. This would generally be an institution associated with the element producer_full_name. In this dataset, this field has the value "JPL/ACT", described as: JPL = Jet Propulsion Laboratory. ACT = Applied Coherent Technology Corp. PRODUCT_TYPE The product_type data element identifies the type or category of a data product within a data set. Example: EDR for edited, raw data record. SOFTWARE_NAME The software_name element identifies data processing software such as a program or a program library. MISSION_PHASE_NAME The mission_phase_name element provides the commonly-used identifier of a mission phase. TARGET_NAME The target_name element identifies a target. The target may be a planet, satellite, ring, region, feature, asteroid or comet. See target_type. In this calibration dataset, the target is "CALIBRATION FIELD". FRAME_SEQUENCE_NUMBER The frame_sequence_number element indicates the location within a cycle at which a specific frame occurs. Frames are repeated in a specific order within each cycle. In this dataset, this value represents a uniquely sequential identifier assigned to each image of the archive. START_TIME The start_time element provides the date and time of the beginning of an event or observation (whether it be a spacecraft, ground-based, or system event) in UTC system format. Formation rule: YYYY-MM-DDThh:mm:ss. STOP_TIME The stop_time element provides the date and time of the end of an observation or event (whether it be a spacecraft, ground-based, or system event) in UTC system format. Formation rule: YYYY-MM-DDThh:mm:ss. PRODUCT_CREATION_TIME The product_creation_time element defines the UTC system format time when a product was created. Formation rule: YYYY-MM-DDThh:mm:ss. INSTRUMENT_NAME The instrument_name element provides the full name of an instrument. Note: that the associated instrument_id element provides an abbreviated name or acronym for the instrument. INSTRUMENT_ID The instrument_id element provides an abbreviated name or acronym which identifies an instrument. Note that the associated instrument_name element provides the full name of the instrument. EXPOSURE_DURATION The exposure_duration element provides the value of the time interval between the opening and closing of an instrument aperture (such as a camera shutter). The unit is seconds. CALIBRATION_LAMP_STATE_FLAG The calibration_lamp_state_flag element indicates whether the calibration lamp was ON or OFF when this image was acquired. SQRT_COMPRESSION_FLAG The sqrt_compression_flag indicates if the data were compressed when acquired. A value of "off" indicates that the data were not compressed while a value of "on" indicates that the data were compressed. In this dataset, this value indicates that the image was compressed with a hardware square-root compression technique prior to transmission. FILTER_NUMBER The filter_number element provides the number of an instrument filter through which an image or measurement was acquired or which is associated with a given instrument mode. Note: that the filter_number is unique, while the filter_name is not. This element is set to "_" when the filter could not be determined. FILTER_NAME The filter_name element provides the commonly- used name of the instrument filter through which an image or measurement was acquired or which is associated with a given instrument mode. Example values: Red, HiRes. This element is set to "UNK" when the filter could not be determined. CENTER_FILTER_WAVELENGTH The center_filter_wavelength element provides the mid_point wavelength value between the minimum and maximum instrument filter wavelength values. The unit is nanometer. This element is set to -99.99 when the filter could not be determined. BANDWIDTH The bandwidth element provides the measurement for the full-width, half-max value associated with the filter. This is the width of the transmission curve at the point of half of the maximum transmission value. The unit is nanometer. This element is set to -99.9 when the filter could not be determined. MEASUREMENT_SOURCE_DESC The measurement_source_desc element describes the source of light used in a laboratory-generated data set, or the radar transmitter in the case of radar astronomy experiments. NOTE = "RADIANCE..." The note element captures the amount of current recorded from the photo-diode detector used to measure the radiance output from the source emitter. The unit is nanoAmpere. INSTRUMENT_TEMPERATURE The instrument_temperature element provides the temperature in degrees kelvin of the instrument at the time the observation was made. FOCAL_PLANE_TEMPERATURE The focal_plane_temperature element provides the temperature of the focal plane array in degrees kelvin at the time the observation was made. OBJECT = FITS_HEADER The header object defines the format of the FITS header. HEADER_TYPE The header_type element indicates the type of header. Example: "FITS". BYTES The bytes element specifies the number of of bytes for a record in the FITS header. RECORDS The record element specifies the total number of records in the FITS header. END_OBJECT The end_object element terminates the object description. OBJECT = IMAGE The image object defines the format of the FITS image. LINES The lines element indicates the total number of data instances along the vertical axis of an image. Note: In PDS label convention, the number of lines is stored in a 32-bit integer field. The minimum value of 0 indicates no data received. LINE_SAMPLES The line_samples element indicates the total number of data instances along the horizontal axis of an image. AXIS_ORDER_TYPE The axis_order_type element identifies the storage order for elements of a multidimensional image object. The default storage order for an image object presumes the rightmost or last index of a sequence varies the fastest. This is the ordering used in the C programming language and is equivalent to ROW_MAJOR storage order for COLUMN elements within tables. Specifying an AXIS_ORDER_TYPE of FIRST_INDEX_FASTEST may be used for images that must be labeled and referenced in the reverse, and is the ordering used in the FORTRAN programming language. SAMPLE_TYPE The sample_type element indicates the data storage representation of sample value. SAMPLE_BITS The sample_bits element indicates the stored number of bits, or units of binary information, contained in a line_sample value. LINE_DISPLAY_DIRECTION The line_display_direction element specifies the orientation of lines within an image for viewing on a display device. For Stardust NAVCAM images the value is "UP", meaning that increasing line numbers must be viewed bottom to top to bottom on the display. SAMPLE_DISPLAY_DIRECTION The sample_display_direction element specifies the orientation of samples within a line for viewing on a display device. For Stardust NAVCAM images the value is "RIGHT", meaning increasing sample numbers are viewed from left to right on the display. SATURATED_PIXEL_COUNT The saturated_pixel_count element provides a count of the number of pixels in the array which are at the maximum DN value. For this dataset, the non-quantized data have a maximum value of 4095, while the quantized data have a maximum value of 255. END End of the PDS Label.