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attribute definition:
feature_type
The FEATURE_TYPE element identifies the type of a particular feature, defined according to International Astronomical Union (IAU) standards. A standard value list would be very large, and could change frequently as new features and types are discovered, so the user of this keyword is refered to the USGS web site that maintains the IAU list: http://planetarynames.wr.usgs.gov/append5.html -
attribute definition:
image_number
The image_number element is a value obtained from the spacecraft_clock_start_count. The image number is another commonly used identifier for an image. Example: Viking - Frame Start Count (FSC) Voyager - Flight Data Subsystem (FDS) clock count (integer 7 digit) -
attribute definition:
orbital_eccentricity
The orbital_eccentricity provides a measure of the non-circularity of an orbit. Circular orbits have eccentricities of 0, elliptical orbits have eccentricities between 0 and 1, parabolic trajectories have eccentricities of 1, and hyperbolic trajectories have eccentricities greater than 1. -
attribute definition:
suffix_item_bytes
The xxx_suffix_item_bytes element of a 1-3 dimensional qube object (where xxx is an axis_name of the qube) provides the sequence of sizes (in bytes) of the suffix items along the xxx axis. Though all items occupy the number of bytes specified by the suffix_bytes element, an item may be defined to be less than 4 bytes in length. The length of the sequence is specified by the axes element, and its order must correspond to the order of names in the xxx_suffix_names element. In a Standard ISIS Qube, the axis names are restricted to SAMPLE, LINE and BAND. For the BAND axis, for example, the element will be named BAND_SUFFIX_ITEM_BYTES. -
attribute definition:
surface_model_type
The SURFACE_MODEL_TYPE element specifies the type of surface used for the re-projection performed during the mosaicing process. -
attribute definition:
mro:typespec_phase
The specific mineralogic or material name for the identified type spectrum. -
attribute definition:
sample_projection_offset
The sample_projection_offset element provides the sample offset value of the map projection origin position from line and sample 1,1 (line and sample 1,1 is considered the upper left corner of the digital array). Note: that the positive direction is to the right and down. -
attribute definition:
pds_user_id
The pds_user_id element provides a unique identifier for each individual who is allowed access to the PDS. The system manager at the Central Node assigns this identifier at the time of user registration. -
attribute definition:
inst_laser_2_status_flag
The INST_LASER_2_STATUS_FLAG element provides the status of the backup Mini-TES 980nm monochromatic laser. Valid values are ON and OFF. -
attribute definition:
lro:dlre_vlookz_max
The LRO:DLRE_VLOOKZ_MAX element gives the maximum recorded value of the Z component of the Diviner Look Unit Vector in a DLRE RDR data product. -
attribute definition:
inst_cmprs_blocks
The inst_cmprs_blocks element provides the number of blocks used to spatially segment a data product prior to compression. -
attribute definition:
field_number
The FIELD_NUMBER is the sequential number of the enclosing FIELD object within the current SPREADSHEET definition. FIELD objects should be numbered from the beginning of the record to the end. -
attribute definition:
product_id
The product_id data element represents a permanent, unique identifier assigned to a data product by its producer. See also: source_product_id. Note: In the PDS, the value assigned to product_id must be unique within its data set. Additional note: The product_id can describe the lowest-level data object that has a PDS label. -
attribute definition:
coordinate_system_name
The coordinate_system_name element provides the full name of the coordinate system to which the state vectors are referenced. PDS has currently defined body-fixed rotating coordinate systems. The Planetocentric system has an origin at the center of mass of the body. The planetocentric latitude is the angle between the equatorial plane and a vector connecting the point of interest and the origin of the coordinate system. Latitudes are defined to be positive in the northern hemisphere of the body, where north is in the direction of Earth's angular momentum vector, i.e., pointing toward the hemisphere north of the solar system invariant plane. Longitudes increase toward the east, making the Planetocentric system right-handed. The Planetographic system has an origin at the center of mass of the body. The planetographic latitude is the angle between the equatorial plane and a vector through the point of interest, where the vector is normal to a biaxial ellipsoid reference surface. Planetographic longitude is defined to increase with time to an observer fixed in space above the object of interest. Thus, for prograde rotators (rotating counter clockwise as seen from a fixed observer located in the hemisphere to the north of the solar system invariant plane), planetographic longitude increases toward the west. For a retrograde rotator, planetographic longitude increases toward the east. Note: If this data element is not present in the PDS Image Map Projection Object (for pre-V3.1 PDS Standards), the default coordinate system is assumed to body-fixed rotating Planetographic. -
attribute definition:
mro:barrel_baffle_temperature
The MRO:BARREL_BAFFLE_TEMPERATURE element provides the temperature of the HiRISE instrument's barrel baffle in degrees Centigrade. See Figure 2.3, MRO HiRISE EDR SIS, REFKEYID JPLD-32004. -
attribute definition:
positive_azimuth_direction
The POSITIVE_AZIMUTH_DIRECTION element provides the direction in which azimuth is measured in positive degrees for an observer on the surface of a body. The azimuth is measured with respect to the elevational reference plane. A value of CLOCKWISE indicates that azimuth increases positively clockwise, while a value of COUNTERCLOCKWISE indicates that azimuth increases positively counter-clockwise. -
attribute definition:
important_instrument_parms
The important_instrument_parameters element provides the number of instrument parameters which are required to derive a particular data set parameter. This value depends partly on the particular characteristics of the instruments providing the instrument parameters. For example, in the case of Voyager instruments, the data set parameter PLASMA BETA may be derived from the following set of instrument parameters: ELECTRON RATE, ION RATE, MAGNETIC FIELD COMPONENT. In that case, the value of the important_instrument_parameters element is 3. -
attribute definition:
sub_solar_azimuth
The sub_solar_azimuth element provides the value of the angle between the line from the center of an image to the subsolar 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. -
attribute definition:
local_mean_solar_time
The desire to work with solar days, hours, minutes, and seconds of uniform length led to the concept of the fictitious mean Sun or FMS. The FMS is defined as a point that moves on the celestial equator of a planetary body at a constant rate that represents the average mean motion of the Sun over a planetary year. Local mean solar time, or LMST, is defined, by analogy with LTST, as the difference between the areocentric right ascensions of a point on the surface and of the FMS. The difference between LTST and LMST varies over time. The length of a mean solar day is constant and can be computed from the mean motion of the FMS and the rotation rate of a planet. The mean solar day is also called a 'sol'. Mean solar hours, minutes, and seconds are defined in the same way as the true solar units. The acceptable range of values for local_mean_solar_time is '00:00:00.000' to '23:59:59.999'. See also LOCAL_TRUE_SOLAR_TIME. (Definition adapted from [VAUGHAN1995].) -
attribute definition:
dawn:target
Used during ground tests to describe the target the FC was pointing at during the test. Typically N/A for flight images. -
attribute definition:
mro:rsc_res_xy_ply_order
The MRO:RSC_RES_XY_PLY_ORDER element is one of the control parameters for the CRISM hyperspectral data filtering application used to convert TRR3 radiance data to I/F and indicates the order of the polynomial used to model low frequency content in the XY direction used as part of the application of the ratio shift correction procedure while computing the resolve cube during the post processing steps. -
attribute definition:
lro:dlre_vlooky_min
The LRO:DLRE_VLOOKY_MIN element gives the minimum recorded value of the Y component of the Diviner Look Unit Vector in a DLRE RDR data product. -
attribute definition:
status_type
The status_type element indicates one of a fixed number of statuses that can describe a particular data element or object. Examples: PENDING, APPROVED. -
attribute definition:
derived_rms_surface_slope
The derived_rms_surface_slope element provides the value of the root mean square meter-scale surface slope, averaged over the radar footprint, obtained by fitting the altimeter echo to a suite of theoretical templates derived from the Hagfors scattering model. -
attribute definition:
software_purpose
The software_purpose element describes the intended use of the software. -
attribute definition:
ccsds_spacecraft_number
The ccsds_spacecraft_number element provides the number assigned by the CCSDS to a given spacecraft. Note: Due to conflicting numbering schemes between the DSN and the CCSDS it is recommended that this element not be used in AMMOS catalog headers. -
attribute definition:
optics_temperature
The optics_temperature element provides the temperature, in degrees celsius, of the optics of an instrument. Note: For Cassini, this temperature is specifically that of the front optics. -
attribute definition:
usage_note
The usage_note element provides the information about the use of a particular data element or object within a particular context. -
attribute definition:
msl:instrument_focus_position_cnt
The MSL:INSTRUMENT_FOCUS_POSITION_CNT element specifies the position in motor counts of the focus motor on a camera. For MSL Chemcam and MMM, when in a request group, this specifies the initial focus position used by the autofocus algorithm. When in INSTRUMENT_STATE, it specifies the actual focus position used for the image. -
attribute definition:
msl:calibration_file_name
The MSL:CALIBRATION_FILE_NAME element specifies the name of the calibration or test file assigned during testing and may also indicate the calibration method. -
attribute definition:
mess:comp12_8
12 to 8 bit image compression enabled or disabled. Which algorithm is used is specified by MESS: 0 = disabled (images are 12-bit) 1 = enabled (images are 8-bit). -
attribute definition:
mro:opt_bnch_mirror_temperature
The MRO:OPT_BNCH_MIRROR_TEMPERATURE element provides the temperature of the HiRISE instrument's optical bench near the tertiary mirror in degrees Centigrade. See Figure 2.3, MRO HiRISE EDR SIS, REFKEYID JPLD-32004. -
attribute definition:
volume_set_id
The volume_set_id element identifies a data volume or a set of volumes. Volume sets are normally considered as a single orderable entity. Examples: USA_NASA_PDS_MG_1001, USA_NASA_PDS_GR_0001_TO_GR_0009 -
attribute definition:
ring_radius
The ring_radius element indicates a radial location within a planetary ring system. Radii are measured from the center of the planet along the nominal ring plane. -
attribute definition:
sampling_count
The SAMPLING_COUNT element provides the number of data samples taken by an instrument or detector. -
attribute definition:
mess:ccd_temp
MDIS CCD temperature in raw counts. The conversion formula to degrees Celsius depends on the camera performing the observation: For WAC: Temperature = -318.4553 + Raw * 0.2718 For NAC: Temperature = -323.3669 + Raw * 0.2737 Where Raw is the raw counts in telemetry (MESS:CCD_TEMP). -
attribute definition:
mailing_address_line
The mailing_address_line element provides one line of the mailing address of an individual or institution. The ordering of the mailing address lines is provided by the associated tuple_sequence_number. -
attribute definition:
target_distance
The TARGET_DISTANCE element provides a measure of the distance from an observing position (e.g., a spacecraft) to a point on a target body. If not specified otherwise, the target point is assumed to be at the center of the instrument field of view. -
attribute definition:
minimum
The minimum element indicates the smallest value occurring in a given instance of the data object. Note: For PDS and Mars Observer applications -- because of the unconventional data type of this data element, the element should appear in labels only within an explicit object, i.e. anywhere between an 'OBJECT =' and an 'END_OBJECT'. -
attribute definition:
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). -
attribute definition:
mro:atmo_correction_flag
The MRO:ATMO_CORRECTION_FLAG element identifies whether a correction has been performed on a CRISM data product for photometric and atmospheric effects. This correction starts using I over F, and consists of division by cosine of the solar incidence angle, removal of modeled attenuation by atmospheric gases, and removal of modeled scattering and attenuation by atmospheric aerosols. ON indicates that a correction has been performed. In this case the units are Lambert albedo. OFF indicates that no correction has been performed. The units may be I_OVER_F, or LAMBERT_ALBEDO in which case I_OVER_F has been divided by cosine of the solar incidence angle but no further correction has occurred. More details can be found in the CRISM Data Products SIS. -
attribute definition:
software_desc
The software_desc element describes the functions performed by the data processing software. If the subject software is a program library, this element may provide a list of the contents of the library. -
attribute definition:
standard_value_type
The standard_value_type element indicates the type of standard value which exists for a PDS data element. Example values: static - values for the data element exist in a defined and fixed set of standard values, dynamic - values for the data element must either exist in a set of defined standard values or be approved by peer review for inclusion to the set of standard values, suggested - values for the data element must exist in a set of defined standard values or may be added to the set of standard values with no requirement for peer review, range - values for the data element must fall within a default range specified with the minimum and maximum elements, formation - values for the data element must conform to a formation rule. -
attribute definition:
star_description
The star_description element describes the properties of a particular star. Information provided may include, for example, the star's type, V and K magnitudes, catalog references, alternative names, etc. -
attribute definition:
region_name
The region_name element identifies a region of a planetary surface. In many cases, the name of a region derives from the major geologic features found within the region. -
attribute definition:
mission_phase_name
The mission_phase_name element provides the commonly-used identifier of a mission phase. -
attribute definition:
lro:dlre_sclk_max
The LRO:DLRE_SCLK_MAX element gives the maximum recorded spacecraft clock value in a DLRE RDR data product. -
attribute definition:
inst_cmprs_mode
The inst_cmprs_mode element identifies the method used for on-board compression of data. Note: The inst_cmprs_name element provides the full name of an inst_cmprs_mode. Note: For MPF, the modes were assigned to the corresponding inst_cmprs_names as follows: 1 JPEG DISCRETE COSINE TRANSFORM (DCT); HUFFMAN/QUALITY 2 JPEG DISCRETE COSINE TRANSFORM (DCT); HUFFMAN/RATIO 3 JPEG DISCRETE COSINE TRANSFORM (DCT); ARITHMETIC/QUALITY 4 JPEG DISCRETE COSINE TRANSFORM (DCT); ARITHMETIC/RATIO 5 JPEG DISCRETE COSINE TRANSFORM (DCT); HUFFMAN/QUALITY/LCT 6 JPEG DISCRETE COSINE TRANSFORM (DCT); HUFFMAN/RATIO/LCT 7 JPEG DISCRETE COSINE TRANSFORM (DCT); ARITHMETIC/QUALITY/LCT 8 JPEG DISCRETE COSINE TRANSFORM (DCT); ARITHMETIC/RATIO/LCT 9 RICE ADAPTIVE VARIABLE-LENGTH CODING (RICE) -
attribute definition:
assumed_warm_sky_temperature
The assumed_warm_sky_temperature element provides the value of the temperature assumed for the dominant portion of 'sky' reflected by the radiometer footprint, including atmospheric absorption and emission. -
attribute definition:
node_manager_pds_user_id
The node_manager_pds_user_id element provides the pds_user_id of the node manager.
Data Sets and Information
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