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attribute definition:
spacecraft_id
The spacecraft_id element provides a synonym or mnemonic for the name of a spacecraft which is uniquely associable with the spacecraft name. Note: Within AMMOS only, this element is also an alias for dsn_spacecraft_num. This interpretation is not portable to the PDS. -
attribute definition:
optional_object_set
The optional_object_set element identifies the ODL objects that are optional members of a defined object. -
attribute definition:
mess:subf_x4
The zero-based starting column of the FOURTH rectangular subframe within an MDIS image to be retained after image compression by the MESSENGER spacecraft main processor (MP). There may be up to five subframes per image as defined by MESS:SUBFRAME. Subframes are defined in the original 1024x1024 pixel MDIS coordinate system before pixel binning as described by MESS:FPU_BIN and MESS:PIXELBIN. -
attribute definition:
msl:start_row_uv
The MSL:START_ROW_UV element provides the beginning row of the ChemCam CCD over which UV integration occurs. -
attribute definition:
inst_cmprs_segments
The INST_CMPRS_SEGMENTS element identifies the number of segments into which the image was partitioned for the error containment purposes. For ICER compression, the data within each segment is compressed independently, so that data loss across segments is compartmentalized or contained across segments. -
attribute definition:
interchange_format
The interchange_format element represents the manner in which data items are stored. Example values: BINARY, ASCII. -
attribute definition:
ch1:sc_orientation_rate
The CH1:SC_ORIENTATION_RATE provides the rotation rates (roll, pitch and yaw rotation rates, deg/sec). -
attribute definition:
data_set_parameter_name
The data_set_parameter_name element provides the name of the scientific parameter or physical quantity that was derived from measured data. A description of the dataset parameter is provided by the data_set_or_inst_parm_desc. See also instrument_parameter_name. Example value: MAGNETIC FIELD INTENSITY -
attribute definition:
start_error_state
The START_ERROR_STATE provides the state of the error flags returned by an instrument or instrument host at the beginning of a specified event. Note: For Mars Pathfinder, this was the state of the APXS error state flags at the beginning of an APXS sampling interval. -
attribute definition:
lro:dlre_orientlon_min
The LRO:DLRE_ORIENTLON_MIN element gives the minimum recorded orientation longitude value in a DLRE RDR data product. -
attribute definition:
y_offset
The y_offset element indicates a shift or displacement of a data value in the y-direction. -
attribute definition:
system_classification_id
The system_classification_id data element identifies a data element or object according to the data system that uses it. In this document, system_classification_id is an indexing mechanism for data element names, to allow them to be identified as either system-specific, or recommended for common use. See also: general_classification_type. -
attribute definition:
msl:instrument_coordinate_type
The INSTRUMENT_COORDINATE_TYPE element specifies the type of coordinate in INSTRUMENT_COORDINATE and INSTRUMENT_COORDINATE_NAME. For MSL, these represent the possible ways in which pointing of mast instruments can be commanded. XYZ means an XYZ coordinate in the frame specified by INSTRUMENT_COORD_FRAME_ID; the others represent combinations of azimuth/elevation pointing where the angle can be an absolute angle or a relative angle from the previous pointing, expressed relative to the INSTRUMENT_COORD_FRAME_ID or as low-level joint angles. NO_MOTION and NO_MOTION_NO_ARB mean that the mast should not be moved from its previous location. -
attribute definition:
articulation_device_angle_name
The ARTICULATION_DEVICE_ANGLE_NAME element provides the formal name which identifies each of the values used in ARTICULATION_DEVICE_ANGLE. -
attribute definition:
row_prefix_bytes
The row_prefix_bytes element indicates the number of bytes prior to the start of the data content of each row of a table. The value must represent an integral number of bytes. -
attribute definition:
offset_number
The OFFSET_NUMBER indicates the offset value used in the analog to digital conversion. The OFFSET_NUMBER times a constant is the voltage value added to the measured voltage signal before digitization. -
attribute definition:
derived_image_type
Specifies how to interpret the pixel values in a derived image RDR (or colloquially, the type of the derived image itself). Values are defined as: IMAGE - Standard image, where pixels represent intensity. Note that this implies nothing about radiometric, geometric, or other corrections that may have been applied. DISPARITY_MAP - Pixels represent line and sample disparity coordinates with respect to another image (2 bands). DISPARITY_LINE_MAP - Pixels represent line disparity only. DISPARITY_SAMPLE_MAP - Pixels represent sample disparity only. DISPARITY_ERROR_MAP - Pixels represent a disparity error metric. DELTA_DISPARITY_MAP - Pixels represent line and sample as an offset with respect to another image (2 bands). DELTA_DISPARITY_LINE_MAP - Pixels represent the line delta disparity only. DELTA_DISPARITY_SAMPLE_MAP - Pixels represent the sample delta disparity only. MASK - Pixels represent a mask to apply to another image. XYZ_MAP - Pixels represent XYZ values (3 bands). XYZ_ERROR_MAP - Pixels represent an XYZ error metric. X_MAP - Pixels represent the X component of an XYZ image. Y_MAP - Pixels represent the Y component of an XYZ image. Z_MAP - Pixels represent the Z component of an XYZ image. ANGLE_MAP - Pixels represent an angle between 2 vectores. RANGE_MAP - Pixels represent a distance from the camera center. RANGE_ERROR_MAP - Pixels represent a range error metric. UVW_MAP - Pixels represent Surface Normal values (3 bands associating to X,Y,Z). U_MAP - Pixels represent the U (X) component of a Surface Normal image. V_MAP - Pixels represent the V (Y) component of a Surface Normal image. W_MAP - Pixels represent the W (Z) component of a Surface Normal image. ROUGHNESS_MAP - Pixels represent a measure of surface roughness. REACHABILITY_MAP - Pixels flag what is reachable on the target feature by the respective IDD instrument. PRELOAD_MAP - Pixels represent an arm preload value. SLOPE_MAP - Pixels represent a slope angle. RADIAL_SLOPE_MAP - Pixels represent the component of slope radial to the rover. SLOPE_HEADING_MAP - Pixels represent a slope heading. SLOPE_MAGNITUDE - Pixels represent a slope magnitude. NORTHERLY_TILT_MAP - Pixels represent the north- facing component of slope. SOLAR_ENERGY_MAP - Pixels represent the available fraction of maximum solar energy. IEP_MAP - Pixels represent Incidence, Emmission and Phase angles. -
attribute definition:
derived_thresh_detector_index
The derived_thresh_detector_index element provides the value of the element in range_sharp_echo_profile that satisfies the altimeter threshold detection algorithm, representing the distance to the nearest object in this radar footprint in units of 33.2 meters, modulus a 10.02 kilometer altimeter range ambiguity. -
attribute definition:
maximum_length
The maximum_length element supplies the maximum number of units associated with the representation of a data element. -
attribute definition:
inst_cmprs_quantz_tbl_id
The inst_cmprs_quantz_tbl_id element identifies the reference table used for quantization in the frequency domain for on-board transform compression. This name or code should be specific enough to allow the user of the data to have sufficient information to reference the quantization table used to compress the data. -
attribute definition:
msl:sequence_execution_count
The MSL:SEQUENCE_EXECUTION_COUNT element indicates how many times this sequence has executed since the last reset of the flight computer. For MSL, this means RCE (Rover Compute Element) start-up. -
attribute definition:
lro:dlre_af_min
The LRO:DLRE_AF_MIN element gives the minimum recorded activity flag value in a DLRE RDR data product. -
attribute definition:
alt_spacecraft_position_vector
The alt_spacecraft_position_vector element provides the value of the spacecraft position at altimetry_footprint_tdb_time, relative to the Venus center of mass, expressed in inertial coordinates in the J2000 coordinate system. -
attribute definition:
bad_pixel_replacement_flag
The bad_pixel_replacement_flag element indicates whether or not bad pixel replacement processing was completed. If set to TRUE, certain pixels in the image were replaced based on a bad pixel table. -
attribute definition:
revolution_period
The revolution_period element provides the time period of revolution of a solar system object about its spin axis. -
attribute definition:
lcross:vsp_bracket_number
The LCROSS:VSP_BRACKET_NUMBER element applies to LCROSS Visible Spectrometer (VSP) products only. When in bracket mode, the VSP captures three spectra in quick succession, varying the integration time between each to bracket a given, nominal integration time. This approach was used to manage uncertainty about what the proper integration time should be. The bracket number indicates whether the spectra is first, second or third within one of those triples and is useful for tracking back to identify where in the downlinked packet the spectra was stored. -
attribute definition:
lro:dlre_az_cmd_max
The LRO:DLRE_AZ_CMD_MAX element gives the maximum recorded last azimuth command value in a DLRE RDR data product. -
attribute definition:
lro:sub_spacecraft_ground_azimuth
The sub_spacecraft_ground_azimuth element provides the value of the angle, measured on the target body surface, between the direction from a ground point to the north pole and the direction from the ground point to the sub-spacecraft point. If the location of the ground point at which the azimuth is measured is not otherwise specified, it is assumed to correspond to the center of the image. The values of this angle increase in a clockwise direction. When a pair of values is given, e.g. (350.0, 10.0), they represent the ordered end-members of a range of ground azimuth values that extends clockwise from the first to the second, modulo 360 degrees. -
attribute definition:
overwritten_channel_flag
The overwritten_channel_flag element indicates whether spectral data was sacrificed in leiu of more precise timing information. Note: For Cassini, if the flag is set to 'ON', the observation time values are collected for each pixel and stored in the backplanes of the spectral cube. The spectral data in channels 347-352 will be set to the CORE_NULL value (-8192). -
attribute definition:
light_source_type
The LIGHT_SOURCE_TYPE element identifies that source of illumination used in instrument calibration. -
attribute definition:
x_axis_maximum
The X_AXIS_MAXIMUM element provides the value of the X coordinate of a VERTICAL at the top of the image. Note that +X is at the top of the image and is at the right, so +X corresponds to North. -
attribute definition:
data_format
The data_format element supplies the name of the data format or language that was used to archive the science data that this software accesses. -
attribute definition:
object_name
The object_name element provides the template object name assigned by the Central Node data administrator to a logical template used in the PDS. -
attribute definition:
clustered_key
The clustered_key element indicates whether a column in a table is part of a unique clustered index. This index determines uniqueness in the table and the sorting order of the data. -
attribute definition:
reference_longitude
The reference_longitude element defines the zero longitude in a rotated spherical coordinate system that was used in a given map_projection_type. -
attribute definition:
rows
The rows element represents the number of rows in a data object. Note: In PDS, the term 'rows' is synonymous with 'records'. In PDS attached labels, the number of rows is equivalent to the number of file_records minus the number of label_records, as indicated in the file_object definition. -
attribute definition:
instrument_parameter_name
The instrument_parameter_name element provides the name of the data parameter which was measured by an instrument. As an example, the instrument_parameter_name value could be ELECTRIC FIELD COMPONENT. It is intended that the instrument_parameter_name element provide the name of the rawest measured value which has some physical significance. Thus, for example, while the detector of an instrument may actually record voltage differences, the electric field component which is proportional to those differences is considered to be the instrument parameter. Note: that the associated data_set_or_inst_parm_desc element describes the measured parameter. -
attribute definition:
line_prefix_structure
The line_prefix_structure element indicates a pointer to a file containing a definition of the structure of the line prefix bytes. Note: In the PDS this data element is obsolete. It is kept in the data dictionary for historical purposes to allow data validation software to function. According to current standards, the structures of prefix and suffix data are illustrated through the use of the table object. -
attribute definition:
model_component_2
The MODEL_COMPONENT_2 element provides the value of the component of the MODEL_COMPONENT_ID for the second element. -
attribute definition:
inst_cmprs_type
The inst_cmprs_type element identifies the type of on-board compression used for data storage and transmission. Note that inst_cmprs_name provides the full name of a compression algorithm (ex. Rice Adaptive Variable-Length Coding), whereas the inst_cmprs_type gives a simple indicator of the type of compression (ex. LOSSLESS). Note: For Cassini, the LOSSY compression scheme was Discrete Cosine Transform, the LOSSLESS compression scheme was RICE, and NOTCOMP meant no compression scheme was used. -
attribute definition:
torque_gain_name
The TORQUE_GAIN_NAME element specifies the formal name of the TORQUE_GAIN element. -
attribute definition:
file_state
The file_state element indicates whether a cube file possibly contains potentially corrupted data. Note: This keyword element is derived directly from the USGS' ISIS software keyword element of the same name. The following is a direct description of this keyword element from the ISIS software documentation. : 'The I/O for ISIS cube files and table files is buffered, i.e., part of the data for a file is held in memory and is not actually written to the file until the file is closed. This improves processing efficiency. However, when a new file is opened for creation or an existing file is opened for update (Read/Write) access, the file will not be properly closed if a system crash occurs or if the program is aborted (either due to a program malfunction or due to user action). This results in a possibility that the file contains corrupted data. When this happens, the FILE_STATE label keyword is set to 'DIRTY' and most ISIS applications normally refuse to process this potentially corrupted data. ISIS includes a keyword called FILE_STATE in every ISIS cube (qube), table, and Instrument Spectral Library (ISL) data file. This keyword will be set to either CLEAN or DIRTY. Each time the cube is opened this keyword will be checked. If the FILE_STATE is equal to CLEAN, then the program will continue on normally. However, if the FILE_STATE is DIRTY, then the application will halt with the appropriate error message. When a FILE_STATE becomes DIRTY, it indicates that something has gone wrong in a previously run application. ISIS will always set the FILE_STATE to DIRTY when the file is being opened for writing. If the application crashes and does not close the cube properly the FILE_STATE will remain DIRTY. However, this does not always mean the file is corrupt. To help restore a file from DIRTY to CLEAN, ISIS has an application called 'cleanlab'. 'cleanlab' will modify the FILE_STATE keyword in the label to a CLEAN state. This program should be used with caution as the contents of the file may not be valid when an ISIS file is left in a DIRTY state. -
attribute definition:
coordinate_system_center_name
The coordinate_system_center_name element identifies a named target, such as the Sun, a planet, a satellite or a spacecraft, as being the location of the center of the reference coordinate system. The coordinate_system_center_name element can also be used to identify a barycenter used for a SPICE s_ or p_kernel. -
attribute definition:
origin_rotation_quaternion
The ORIGIN_ROTATION_QUATERNION element provides an array of four values that specifies the rotation of the coordinate system being defined by the enclosing COORDINATE_SYSTEM_STATE group, relative to the reference system. Mathematically this can be expressed as follows: Given a vector expressed in the current frame, multiplication by this quaternion will give the same vector as expressed in the reference frame. Quaternions are expressed as a set of four numbers in the order (s, v1, v2, v3), where s = cos(theta/2) and v(n) = sin(theta/2)*a(n). Theta is the angle of rotation and a is the (x,y,z) vector around which the rotation occurs. -
attribute definition:
exposure_offset_flag
The exposure_offset_flag element indicates the (instrument_dependent) mode of the offset state of a camera. Offset is a constant value which is added to an instrument's output signal to increase or decrease the level of that output. -
attribute definition:
msl:commanded_video_frames
The MSL:COMMANDED_VIDEO_FRAMES element indicates the number of video image frames commanded. -
attribute definition:
apxs_mechanism_angle
The APXS_MECHANISM_ANGLE provides an angular measurement of the position of the deployment mechanism on which the alpha proton x-ray spectrometer is mounted. It is measured in degrees. Note: For Mars Pathfinder, this value was measured at STOP_TIME. It was derived from the raw data value returned in the APXS Results as part of the spectrum data. The value was derived by subtracting 112.64 from the product of the raw value multiplied by 1.28. -
attribute definition:
msl:spectrometer_control_byte
The MSL:SPECTROMETER_CONTROL_BYTE element provides an overall enable for CCD clocks. Also included is a deprecated temperature check enable, which is not implemented. A value of 0x02 enables clocks; a value of 0x04 enables temperature checks. The default value should be 0x02. -
attribute definition:
msl:image_radiance_factor
The MSL:IMAGE_RADIANCE_FACTOR element specifies the overall multiplicative factor, for a multi-input image (such as a mosaic), that was applied to each image as the mosaic was being assembled. Together with IMAGE_RADIANCE_OFFSET, this specifies a simple linear adjustment of the form 'dn * factor + offset', that can be used for (limited) radiometric seam correction. Each pixel within a given input image receives the same correction. The order of images is as defined in the input list file (generally delivered along with the mosaic) or INPUT_PRODUCT_ID. Applies to RDRs only, not EDRs. NOTE: This correction is applied after radiometric correction, if any, performed on the inputs. -
attribute definition:
mro:measurement_mass
The MRO:MEASUREMENT_MASS element provides the mass of a sample used in a particular laboratory spectral measurement.
Data Sets and Information
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