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201–250 of 2184 results (0.001 seconds)
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attribute definition:
minimum_spectral_contrast
The minimum_spectral_contrast element provides the minimum value of spectral contrast within a given set of data. See spectral_contrast_ range. -
attribute definition:
model_desc
The MODEL_DESC element provides a textual description of a model (or a pointer to a file containing the description). This is not intended to be a brief summary, but rather a detailed description of the model; at minimum, it should include a reference to a detailed description of the model in published literature. While other data elements such as CALIBRATION_SOURCE_ID, SOURCE_ID, COORDINATE_SYSTEM_NAME, and MODEL_COMPONENT_NAME provide quick identifiers that distinguish how this model was generated, the details and data behind each of these identifiers should be explicitly included in the model description. -
attribute definition:
model_component_9
The MODEL_COMPONENT_9 element provides the value of the component of the MODEL_COMPONENT_ID for the nineth element. -
attribute definition:
phase_angle
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. -
attribute definition:
minimum_radial_resolution
The minimum_radial_resolution element indicates the minimum (finest) radial distance over which changes in ring properties can be detected within a data product. -
attribute definition:
decal_name
The decal_name element describes the specific decalibration data file. This element is used only in AMMOS-Magellan mission operations. -
attribute definition:
coordinate_system_type
There are three basic types of coordinate systems: body-fixed rotating, body-fixed non-rotating and inertial. A body-fixed coordinate system is one associated with a body (e.g., planetary body or satellite). In contrast to inertial coordinate systems, a body-fixed coordinate system is centered on the body and rotates with the body (unless it is a non-rotating type). For the inertial coordinate system type, the coordinate system is fixed at some point in space. 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 be body-fixed rotating Planetographic. -
attribute definition:
msl:telemetry_source_start_time
The MSL:TELEMETRY_SOURCE_START_TIME element specifies the creation time of the source product from which this product was derived. It is the same as TELEMETRY_SOURCE_SCLK_START converted to Spacecraft Event Time (SCET). -
attribute definition:
msl:flat_field_file_desc
The MSL:FLAT_FIELD_FILE_DESC element specifies a description of the corresponding flat field files listed in FLAT_FIELD_FILE_NAME. -
attribute definition:
dawn:heater1_flag
Baffle Heater: OFF = The Baffle heater (HEATER1) is switched on. ON = The Baffle heater (HEATER1) is switched off. The heater produces 1.0 W (26 Ohm at +5 V). The heater's duty cycle is controlled to ensure adequate heating. It is not surprising to see ONs and OFFs interspersed in a single image acquisition session. -
attribute definition:
mosaic_images
The mosaic_images element identifies the number of images which are contained in a given mosaic. -
attribute definition:
sc_target_position_vector
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. -
attribute definition:
telemetry_source_id
The telemetry source identifier element identifies the telemetry (TLM) source. Normally, the telemetry from the spacecraft is routed through a dedicated channel into the user workstation. All of these elements in the TLM source may, however, be different over the lifecycle of a mission, e.g., the spacecraft flight model 1 and flight model 2 (FM1, FM2) or an electrical model (EM) might be used to send the data via a virtual channel 0 (VC0) or virtual channel 1 (VC1) to a electrical ground support equipment (EGSE) computer 0 (EGSE_ID_0). The different routes can be defined with the telemetry source id element. Examples (substitute quotes instead of apostrophe in the below example): TELEMETRY_SOURCE_ID = ('FM1','VC0','EGSE_ID_1') TELEMETRY_SOURCE_ID = ('EM','VC1','EGSE_ID_1') -
attribute definition:
mro:phase_correction_type
The MRO:PHASE_CORRECTION_TYPE element is the Parameter used by the SHARAD ground processing software for the selection of the algorithm used for the correction of any phase distortion in the signal caused by the ionosphere. -
attribute definition:
test_pulse_state
The state of the Cassini UVIS instrument's test pulse mechanism. -
attribute definition:
keyword_value_help_text
The keyword_value_help_text element provides text which describes the information required from the data supplier to assign a value to a template keyword. -
attribute definition:
first_standard_parallel
The first_standard_parallel element is used in Conic projections. If a Conic projection has a single standard parallel, then the first_standard_parallel is the point of tangency between the sphere of the planet and the cone of the projection. If there are two standard parallels (first_standard_parallel, second_standard_parallel), these parallel are the intersection lines between the sphere of the planet and the cone of the projection. The map_scale is defined at the standard parallels. -
attribute definition:
z_axis_step_size
The Z_AXIS_STEP_SIZE element specifies the distance or step size required to move the z-axis of an instrument. Note: For MER, this is the distance the RAT is moved in the negative direction once the grinding wheel is no longer able to complete a full revolution in the seek and scan operation. This is also the distance required to move the z-axis in the positive direction once the grinding wheel completes a full revolution. -
attribute definition:
raw_rad_antenna_power
The raw_rad_antenna_power element provides the value of the radiometer noise power when the receiver is connected to the SAR antenna. It is corrected for systematic errors resulting from leakage of the altimeter signal. -
attribute definition:
inst_cmd_columns
The INST_CMD_COLUMNS element gives the commanded value of the number of columns to acquire for the data product. -
attribute definition:
mcp_gain_mode_id
The MCP_gain_mode_id element identifies the MCP (Micro Channel Plate) gain state of an instrument. -
attribute definition:
image_duration
The IMAGE_DURATION element provides the measurement of time required to collect all the frames of all the bands in an image. For Odyssey THEMIS, the time between successive frames is stored in the INTERFRAME_DELAY keyword. When set at 1 second, a 3-frame, 1-band image would have an IMAGE_DURATION of (3 frames)*(1sec/frame)= 3 seconds. If more than one band is selected, the computation becomes more complex. The IMAGE_DURATION can be modified to change the amount of overlap between frames. -
attribute definition:
data_set_name
The data_set_name element provides the full name given to a data set or a data product. The data_set_name typically identifies the instrument that acquired the data, the target of that instrument, and the processing level of the data. Example value: MR9/VO1/VO2 MARS IMAGING SCIENCE SUBSYSTEM/VIS 5 CLOUD V1.0. See also: data_set_id. Note: In PDS, the data_set_name is constructed according to standards outlined in the Standards Reference. Note: This element is defined in the AMMOS Magellan catalog as an alias for file_name to provide backward compatibility -
attribute definition:
orbit_direction
The orbit_direction element provides the direction of movement along the orbit about the primary as seen from the north pole of the 'invariable plane of the solar system', which is the plane passing through the center of mass of the solar system and perpendicular to the angular momentum vect or of the solar system orbit motion. PROGRADE for positive rotation according to the right-hand rule, RETROGRADE for ne gative rotation. See also: orbital_inclination -
attribute definition:
lro:dlre_ch9_tb_min
The LRO:DLRE_CH9_TB_MIN element gives the minimum recorded brightness temperature value for channel 9 in a DLRE RDR data product. -
attribute definition:
edit_routine_name
The edit_routine_name element provides the name of a edit routine name that the catalog bulk loading software should execute during any validation procedures. -
attribute definition:
map_sequence_number
The map_sequence_number element identifies the sequence number of a particular series of decommutation maps. -
attribute definition:
mess:dpu_id
The identified of the DPU used during acquisition of an MDIS image: 0 = DPU-A 1 = DPU-B. -
attribute definition:
lro:dlre_date_min
The LRO:DLRE_DATE_MIN element gives the minimum recorded date value in a DLRE RDR data product. -
attribute definition:
mro:hdf_software_version_id
The MRO:HDF_SOFTWARE_VERSION_ID element indicates the version of the software used by the CRISM hyperspectral data filter application. -
attribute definition:
permission_flag
The permission_flag element indicates whether or not a query is orderable. -
attribute definition:
target_pixels
The number of pixels in which the target appears. -
attribute definition:
mro:felics_compression_flag
The MRO:FELICS_COMPRESSION_FLAG element identifies whether FELICS data compression was applied to a HiRISE image. -
attribute definition:
alt_skip_factor
The alt_skip_factor elements provide the values of the altimeter skip factor taken from the radar burst header. alt_skip_factor[0] pertains to the measurement of raw_rad_antenna_power and alt_skip_factor[1] to raw_rad_load_power. -
attribute definition:
product_data_set_id
The product_data_set_id element provides the data_set_id of a cataloged data set that resulted from the application of the processing software to the source data sets. The data set name associated with the product data set is provided by the data_set_name element. -
attribute definition:
coordinate_system_index
The COORDINATE_SYSTEM_INDEX element describes an integer array. The array values are used to record and track the movement of a rover during surface operations. When in a COORDINATE_SYSTEM_STATE group, this keyword identifies which instance of the coordinate frame, named by COORDINATE_SYSTEM_NAME, is being defined by the group. NOTE: For MER, the indices are based on the ROVER_MOTION_COUNTER. This counter is incremented each time the rover moves (or may potentially have moved, e.g., due to arm motion). The full counter may have up to 5 values (SITE, DRIVE, IDD, PMA, HGA), but normally only the first value (for SITE frames) or the first two values (for LOCAL_LEVEL or ROVER frames) are used for defining coordinate system instances. It is legal to use any number of indices to describe a coordinate system instance, however. Example: COORDINATE_SYSTEM_INDEX = (1,3,2,3,2). -
attribute definition:
projection_elevation_line
The PROJECTION_ELEVATION_LINE element specifies the image line which corresponds to PROJECTION_ELEVATION for each column of the CYLIND-PERSPECTIVE projection. -
attribute definition:
missing_packet_flag
The missing_packet_flag element indicates whether or not there were telemetry packets that were expected but not received. -
attribute definition:
mro:ikf_start_channel
The MRO:IKF_START_CHANNEL 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 first channel number for a given spectral region of the Iterative Kernel Filter procedure. -
attribute definition:
lro:a1_channel_max_value
The A1_CHANNEL_MAX_VALUE element gives the maximum value of the Diviner instrument A1 detector channel in the set of observations that make up a Diviner data product. -
attribute definition:
node_institution_name
The node_institution_name element identifies a university, research center, NASA center or other institution associated with a PDS node. -
attribute definition:
msl:brightness_correct_file
The MSL:BRIGHTNESS_CORRECT_FILE element specifies the name of the file containing brightness correction parameters for each input file of a mosaic. The file is in XML format. -
attribute definition:
mro:powered_cpmm_flag
The MRO:POWERED_CPMM_FLAG element provides a set of 14 values that identify which HiRISE CCD Processing/Memory Modules were commanded to acquire imaging during the observation. The first element is for CPMM 0 and the last element is for CPMM 13. -
attribute definition:
rad_receiver_system_temp
The rad_receiver_system_temp element provides the value of the receiver input radiometer reading, converted to equivalent noise temperature. This is the difference between raw_rad_antenna_power and raw_rad_load_power, converted to equivalent noise temperature and compensated for changes in receiver gain and temperature. -
attribute definition:
line_last_pixel
The line_last_pixel element provides the line index for the last pixel that was physically recorded at the end of the image array. Note: In the PDS, for a fuller explanation on the use of this data element in the Image Map Projection Object, please refer to the PDS Standards Reference. -
attribute definition:
occultation_port_state
The occultation port state describes a small aperture located away from the normal viewing direction, which is either open, in which case light is directed toward the telescope mirror by a small grazing incidence mirror or closed in which case a mechanism is used to block the light path. -
attribute definition:
fov_shape_name
The field_of_view_shape_name element identifies the geometric shape of the field of view of an instrument. -
attribute definition:
model_component_6
The MODEL_COMPONENT_6 element provides the value of the component of the MODEL_COMPONENT_ID for the sixth element. -
attribute definition:
msl:sam_gc_column_description
The msl:sam_gc_column_description specifies the operational configuration of the Gas Chromatograph column used in an experiment. -
attribute definition:
reference_object_name
The reference_object_name element identifies the point, vector, or plane used as the origin from which an angle or a distance is measured. As an example, the reference object could be the center of a given planet (a point), the spacecraft z_axis (a vector) or the equatorial plane.
Data Sets and Information