Search Results
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attribute definition:
raw_rad_load_power
The raw_rad_load_power element provides the value of the radiometer noise power when the receiver is connected to a load at a known temperature. It is averaged over as many as 10 successive measurements and corrected for systematic errors resulting from leakage of the altimeter signal. -
attribute definition:
slit_position_angle
The SLIT_POSITION_ANGLE element describes the orientation of the slit of a spectrograph as projected on the sky. This position angle is measured on the inside of the celestial sphere from the direction of the celestial North Pole in a counter-clockwise direction (eastward) toward the long axis of the spectrograph. This angle is defined such that 0 degrees points north and 90 degrees points east. North Pole is defined in J2000 coordinates. -
attribute definition:
mro:weighting_function_name
The MRO:WEIGHTING_FUNCTION_NAME element gives the Parameter used by the SHARAD ground processing software for the selection of the function used for weighting the contribution of different frequencies in the signal before range compression.. -
attribute definition:
lro:dlre_ch7_tb_min
The LRO:DLRE_CH7_TB_MIN element gives the minimum recorded brightness temperature value for channel 7 in a DLRE RDR data product. -
attribute definition:
frames
The frames element provides the number of frames within a particular cycle, which is identified by the cycle_id element. -
attribute definition:
data_quality_desc
The data_quality_desc element describes the data quality which is associated with a particular data_quality_id value. The various values of data_quality_id and data_quality_desc are instrument dependent. -
attribute definition:
msl:instrument_coord_frame_index
The MSL:INSTRUMENT_COORD_FRAME_INDEX element specifies, along with INSTRUMENT_COORD_FRAME_ID, the index of the coordinate frame in which the pointing for this instrument is expressed. Only the SITE, LL, RSM_JOINTS and FIDUCIAL frames are indexed. A positive value means to use specifically that index; a negative value means an index relative to the current. -
attribute definition:
mro:observation_start_count
The MRO:OBSERVATION_START_COUNT element provides the spacecraft clock count corresponding to the UTC time identified by the MRO:OBSERVATION_START_TIME. This is the time when the HiRISE instrument begins its image acquisition sequence. -
attribute definition:
uncorrected_distance_to_nadir
The uncorrected_distance_to_nadir element provides the 'raw' measurement of range-to-surface, obtained from the pulse-compressed altimeter signals by the MGMTAC phase of the altimetry and radiometry data reduction program. -
attribute definition:
articulation_dev_vector_name
The ARTICULATION_DEV_VECTOR_NAME element provides the formal name of the vector type acting on the articulation device. -
attribute definition:
x_offset
The x_offset element indicates a shift or displacement of a data value in the x-direction. Note: For Cassini, this refers to the commanded mirror offset (in the x direction) within the infrared normal resolution field of view. For visible and infrared, the actual data collection area will differ when not in normal resolution mode. -
attribute definition:
line_projection_offset
The line_projection_offset element provides the line offset value of the map projection origin position from the 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:
instrument_coordinate_id
The INSTRUMENT_COORDINATE_ID element identifies the frame in which the INSTRUMENT_COORDINATE values are given -
attribute definition:
lro:last_elevation_command_max
The LAST_ELEVATION_COMMAND_MAX element gives the maximum value of the last elevation command in the set of observations that make up a Diviner data product. -
attribute definition:
msl:local_mean_solar_time
The MSL:LOCAL_MEAN_SOLAR_TIME element specifies the local mean solar time, or LMST, on a given sol. It is one of two types of solar time used to express the time of day at a point on the surface of a planetary body. 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 is defined, by analogy with local true solar time (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. For MSL, the valid value is embedded with a Sol value that can be different than the Sol (See PLANET_DAY_NUMBER) associated with LTST (LOCAL_TRUE_SOLAR_TIME). The time portion of the valid value is expressed in terms of a 24-hour clock. So, in an example using Sol 27, the valid value range for the 24-hour clock would be represented as 'Sol-00027M00:00:00.000' to 'Sol-00027M23:59:59.999'. -
attribute definition:
start_time_from_closest_aprch
The start_time_from_closest_approach element provides the time from spacecraft periapsis at the beginning of a sequence. See time_from_closest_approach. -
attribute definition:
mess:subf_dx4
The number of columns in 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:
coordinate_system_desc
The coordinate_system_desc element describes a named reference coordinate system in terms of the definitions of the axes and the 'handedness' of the system. It also provides other necessary descriptive information, such as the rotation period for rotating coordinate systems. -
attribute definition:
volume_version_id
The volume_version_id element indentifies the version of a data volume. All original volumes should use a volume_version_id of 'Version 1'. Versions are used when data products are remade due to errors or limitations in the original volumes (test volumes, for example), and the new version makes the previous volume obsolete. Enhancements or revisions to data products which constitute alternate data products should be assigned a unique volume id, not a new version id. Examples: Version 1, Version 2. -
attribute definition:
resolution_time
The resolution_time element provides the date (and time, where appropriate) as of which a user's request is resolved. -
attribute definition:
articulation_device_angle
The ARTICULATION_DEVICE_ANGLE element provides the value of an angle between two parts or segments of an articulated device. -
attribute definition:
distribution_type
The DISTRIBUTION_TYPE element identifies the type or category of a data product within a data set release. -
attribute definition:
item_offset
The item_offset data element indicates the number of bytes from the start of one item to the start of the next item in any ASCII column or array. -
attribute definition:
dawn:data_routing_id
This keyword describes the priority of the acquired image and thus how it was handled on board. Op-Nav = The image is processed with highest priority and streamed into VR10 of the s/c. Science 1 = The image is processed with high priority and streamed into VR8 of the s/c. Science 2 = The image is processed with mid priority and streamed into VR8 of the s/c. Science 3 = The image is processed with low priority and streamed into VR8 of the s/c. Science 4 = The image is processed with least priority and streamed into VR8 of the s/c. -
attribute definition:
apxs_communication_error_count
The APXS_COMMUNICATION_ERROR_COUNT element provides the number of communication errors recorded by an instrument host when trying to query the Alpha Proton X-ray Spectrometer. Note: For Mars Pathfinder, the APXS_COMMUNICATION_ERROR_COUNT was returned in the Rover telemetry. -
attribute definition:
noise_type
The noise_type element indicates the type of the noise statistics in a data product. -
attribute definition:
axis_unit
The axis_unit element provides the unit(s) of measure of associated axes identified by the axis_name element in an ARRAY data object. For arrays with more than 1 dimension, this element provides a sequence of values corresponding to the number of axes specified. The rightmost item in the sequence corresponds to the most rapidly varying axis, by default. -
attribute definition:
maximum_current_persistence
The MAXIMUM_CURRENT_PERSISTENCE element gives the value of the persistence of the maximum current. -
attribute definition:
instrument_manufacturer_name
The instrument_manufacturer_name element identifies the manufacturer of an instrument. -
attribute definition:
table_desc
The table_desc element provides the ascii text description for a table in the PDS data base. -
attribute definition:
mro:measurement_temperature
The MRO:MEASUREMENT_TEMPERATURE element gives the temperature of the environment during a laboratory spectral measurement. -
attribute definition:
twist_angle
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. Note: The specific mathematical definition of TWIST_ANGLE depends on the value of the TWIST_ANGLE_TYPE element. If unspecified, TWIST_ANGLE_TYPE = GALILEO for Galileo data and TWIST_ANGLE_TYPE = DEFAULT for all other data. Note: This element bears a simple relationship to the value of CELESTIAL_NORTH_CLOCK_ANGLE. When TWIST_ANGLE_TYPE = DEFAULT, TWIST_ANGLE = (180 - CELESTIAL_NORTH_CLOCK_ANGLE) mod 360; when TWIST_ANGLE_TYPE = GALILEO, TWIST_ANGLE = (270 - CELESTIAL_NORTH_CLOCK_ANGLE) mod 360. -
attribute definition:
mapping_stop_time
The mapping_stop_time element is an alias for stop_time used exclusively by AMMOS-MGN ephemeris files. -
attribute definition:
formal_correlations_group
The formal_correlations_group provides the formal correlations between the derived_planetary_radius and the derived_rms_surface_fresnel_reflect elements, and between the derived_fresnel_reflectivity and the derived_planetary_radius elements, respectively. As the profile fitting algorithm is non-linear, the correlations may not be symmetric. -
attribute definition:
sqrt_minimum_pixel
The sqrt_minimum_pixel element provides the minimum pixel value in an image prior to square root compression. -
attribute definition:
ch1:initial_sc_orientation
The CH1:INITIAL_SC_ORIENTATION element provides the initial spacecraft orientation (r/p/y) with respect to local orbit frame at T0 for this orbit. -
attribute definition:
mro:fram_stat_min_deviation
The MRO:FRAM_STAT_MIN_DEVIATION 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 minimum deviation from the mean of an element of the normalized frame median profile necessary to be classified as a bad frame during the preprocessing steps. -
attribute definition:
rotation_voltage
The ROTATION_VOLTAGE element specifies the open-loop voltage supplied to the instrument rotation motor. -
attribute definition:
lro:dlre_sclk_min
The LRO:DLRE_SCLK_MIN element gives the minimum recorded spacecraft clock value in a DLRE RDR data product. -
attribute definition:
lro:dlre_cloctime_max
The LRO:DLRE_CLOCTIME_MAX element gives the maximum recorded local time at FOV center in a DLRE RDR data product. -
attribute definition:
readout_cycle_index
The readout_cycle_index element provides the element number within the Readout Cycle table selected for this image. The readout cycle of an instrument involves that part of its function involved in reading the light values out of a CCD array. Note: for Cassini, the Readout Cycle table provides a translation of these values into cycle durations in seconds. -
attribute definition:
inst_cmprs_seg_missing_pixels
The INST_CMPRS_SEG_MISSING_PIXELS element identifies an array of elements in which the nth element identifies the total number of missing pixels defined by the nth compression segment. -
attribute definition:
instrument_temperature_point
The INSTRUMENT_TEMPERATURE_POINT element identifies the measurement point or location on an instrument or some part of an instrument. This keyword may be used in conjunction with INSTRUMENT_TEMPERATURE to more fully describe either single or multiple temperatures at various locations within a single instrument. If there is more than one measurement taken for a given instrument, a multi-value ordered set of values (i.e., sequence) may be constructed to associate each temperature measurement in the INSTRUMENT_TEMPERATURE list with a corresponding item in the INSTRUMENT_TEMPERATURE_POINT sequence of values. -
attribute definition:
flat_field_correction_flag
The flat_field_correction_flag element indicates whether or not a flat field correction was applied to an image. Note: For MPF, this correction was applied to the image on board the spacecraft, before the image was transmitted to Earth. -
attribute definition:
inst_cmprs_rate
The inst_cmprs_rate element provides the average number of bits needed to represent a pixel for an on-board compressed image. -
attribute definition:
occultation_type
The occultation type element distinguishes between two types of occultation experiments, stellar and radio. Stellar occultations involve observing a star as a targeted ring or body passes in front, as seen from either a spacecraft or Earth-based observatory. Radio occultations typically involve observing the continuous-wave radio transmissions from a spacecraft as it passes behind the target as seen from a radio telescope on Earth. -
attribute definition:
azimuth
The azimuth element provides the azimuth value of a point of interest (for example, the center point of an image of a solar system object taken from a lander or a rover). Azimuth is an angular distance from a fixed reference position. Azimuth is measured in a spherical coordinate system, in a plane normal to the principal axis. Azimuth values increase according to the right hand rule relative to the positive direction of the principal axis of the spherical coordinate system. See elevation. -
attribute definition:
msl:local_true_solar_time_sol
The MSL:LOCAL_TRUE_SOLAR_TIME_SOL element specifies the number of solar days elapsed since a reference day (e.g. the day on which a landing vehicle set down) for local true solar time (LTST). Days are measured in rotations of the planet in question from midnight to midnight. For MSL, the reference day is '0', as Landing day is Sol 0. If before Landing day, then value will be less than or equal to '0' and can be negative. See also LOCAL_TRUE_SOLAR_TIME and PLANET_DAY_NUMBER. -
attribute definition:
ch1:spacecraft_yaw_direction
The CH1:SPACECRAFT_YAW_DIRECTION element provides the spacecraft yaw (look) mode. -
attribute definition:
lro:dlre_clon_min
The LRO:DLRE_CLON_MIN element gives the minimum recorded FOV center longitude value in a DLRE RDR data product.
Data Sets and Information
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