Search Results
701–750 of 2184 results (0.002 seconds)
-
attribute definition:
group_applicability_flag
The GROUP_APPLICABILITY_FLAG element indicates that a group of keywords are valid values. Is present in a Group only when information is received from telemetry. -
attribute definition:
mro:inst_cont_fpga_pos_2_5_voltage
The MRO:INST_CONT_FPGA_POS_2_5_VOLTAGE element provides the positive 2_5 voltage state of the HiRISE instrument control Field-Programmable Gate Array. -
attribute definition:
mean_radius
The mean_radius element is measured or derived using a variety of methods. It provides, approximately, an average of the equatorial and polar radii of the best fit spheroid (for planets) or ellipsoid (for satellites). -
attribute definition:
inst_cmprs_param
The inst_cmprs_param element is a JPEG specific variable which specifies on-board compression determination by image quality or by compression factor, based on a selected on-board compression mode. -
attribute definition:
msl:stop_row_vis
The MSL:STOP_ROW_VNIR element provides the end row of the ChemCam CCD over which UV integration occurs. -
attribute definition:
blemish_file_name
The blemish_file_name element indicates the file that provides corrections for blemishes (reseaus, dust spots, etc.) that affect the response of the sensor at specific locations. The blemish file is selected based on camera, filter, gain-state, camera mode, and time. -
attribute definition:
dawn:purpose
Used during ground tests to describe the purpose of the test. Typically N/A for flight images -
attribute definition:
computer_vendor_name
The computer_vendor_name element identifies the manufacturer of the computer hardware on which the processing software operates. -
attribute definition:
nav_unique_id
The nav_unique_id element is an AMMOS-MGN unique element used to express a NAV-unique identifier for the file. Note: This data element is obsolete. The source_product_id element should be used instead. -
attribute definition:
maximum_phase_angle
The maximum_phase_angle element provides the maximum phase angle value. See phase_angle. -
attribute definition:
sample_resolution
The SAMPLE_RESOLUTION element provides the horizontal size of the pixel at the center of an image as projected onto the surface of the target. -
attribute definition:
reference_azimuth
The REFERENCE_AZIMUTH element specifies the azimuth which is at the top (vertical in the polar projection. (MIPL Projections - Polar) -
attribute definition:
filter_temperature
The filter_temperature element provides the temperature, in degrees celsius (unless otherwise specified), of the instrument filter. Note: For Cassini, this provides the temperature of the filter wheel housing. -
attribute definition:
mosaic_sequence_number
The mosaic_sequence_number element is a numeric identifier which defines a group of related images on a single mosaic. The mosaic_sequence_number is necessary when several groups of images covering different regions are printed on one photo_product. -
attribute definition:
ict_zigzag_pattern
The ict_zigzag_pattern element provides the name of the Integer Cosine Transform zigzag pattern used to rearrange the transform. For Galileo, the valid values are: ZIGZAG or ALT. -
attribute definition:
msl:instrument_focus_init_flag
The MSL:INSTRUMENT_FOCUS_INIT_FLAG element specifies whether the instrument focus mechanism should be (or was) initialized before use. For MSL ChemCam, 'TRUE' brings the focus stage to the limit switch to initialize its position. -
attribute definition:
target_geocentric_distance
The TARGET_GEOCENTRIC_DISTANCE provides the distance from the center of the earth to the center of the target of an observation at the time of the observation. The default unit is kilometers. 'Center' is generally taken as center of figure, although in some higher-level products it may be center of mass. Users should consult the data set documentation to determine which is presented in those cases where the difference might be significant. -
attribute definition:
mean_truncated_bits
The MEAN_TRUNCATED_BITS element provides the mean number of truncated bits/pixel. -
attribute definition:
mro:sec_mirror_mtr_rng_temperature
The MRO:SEC_MIRROR_MTR_RNG_TEMPERATURE element provides the temperature of the HiRISE instrument's secondary mirror metering ring in degrees Centigrade. See Figure 2.3, MRO HiRISE EDR SIS, REFKEYID JPLD-32004. -
attribute definition:
item_bytes
The item_bytes data element represents the size in bytes of an item within a data object such as a column. Notes: (1) In the PDS, the term item_bytes is distinguished from the term bytes because both elements may appear in a single data object definition (e.g., a label) and refer to different parts of the data object. In an object such as a column, bytes represents the size of the column. Should the column be split into equal items, item_bytes would represent the size of each item. (2) In a field object, item_bytes specifies the maximum size of each item. -
attribute definition:
image_count
The IMAGE_COUNT element provides the number of images or exposures which were co-added or combined to produce the data product. For a simple data product made up of a single exposure, image_count is 1. -
attribute definition:
exposure_duration_count
The EXPOSURE_DURATION_COUNT element provides the value, in raw counts, of the time interval between the opening and closing of an instrument aperture (such as a camera shutter). This is a raw value taken directly from telemetry, as opposed to EXPOSURE_DURATION, which has been converted to engineering units. For MER, one count is equivalent to 5.1 ms. -
attribute definition:
mess:subframe
Number of rectangular subframes within an MDIS image to be retained after image compression by the MESSENGER spacecraft main processor (MP). Subframes may overlap each other, and are defined in the original 1024x1024 pixel MDIS coordinate system before pixel binning as described by MESS:FPU_BIN and MESS:PIXELBIN. Either a full image may be specified, or up to five discrete regions within the full image. In all cases, the first four columns of the original 1024x1024 image, which are physically masked and serve as a dark current reference, are downlinked as subframe 0, even if the full image case is described. Within the subframes, pixel binning as described by MESS:FPU_BIN and MESS:PIXELBIN is performed. 0 - no subframes (full image) 1 - 1 subframe 2 - 2 subframes 3 - 3 subframes 4 - 4 subframes 5 - 5 subframes -
attribute definition:
mess:aex_stat
The bin in a DPU histogram of image brightness used for MDIS automatic exposure time calculation. In a test image that it analyzed to determine an exposure time using automatic exposure, DPU hardware generates a histogram of the image. The histogram is analyzed by the software to determine if the image is overexposed or underexposed, and the exposure time is adjusted accordingly by analyzing the histogram of raw DN values in different brightness bins. The background or dark current level (MESS:AEX_BACB) is taken into account and is assumed to be a constant value. A threshold of number of pixels (MESS:AEX_STHR) is allowed to exceed a target brightness (MESS:AEX_TGTB). Starting with the maximum value, the number of pixels exceeding the target is counted, and the brightness of the histogram bin in which that threshold is reached (MESS:AEX_STAT) is reported. The exposure time is scaled back by the ratio of MESS:AEX_TGTB/MESS:AEX_STAT. -
attribute definition:
b1950_right_ascension
The B1950_right_ascension element provides the right ascension of a star or other object using the B1950 coordinate frame rather than the J2000 frame. -
attribute definition:
alt_gain_factor
The alt_gain_factor elements provide the values of the altimeter gain factor taken from the radar burst header. alt_gain_factor[0] pertains to the measurement of raw_rad_antenna_power and alt_gain_factor[1] to raw_rad_load_power. -
attribute definition:
surface_temperature
The surface_temperature element provides the value of the physical surface temperature of the radiometer footprint, calculated from average_planetary_radius and the project-adopted atmospheric model. -
attribute definition:
mess:subf_x5
The zero-based starting column of the FIFTH 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:
mro:typespec_num_lat
The latitude (N) at the center pixel of the type location for a particular CRISM type spectrum used as the numerator of the spectral ratio. -
attribute definition:
scaled_image_height
The scaled_image_height element provides the height on the target surface of the projection of an image onto the surface. This is the distance on the surface between intercept points 2 (upper middle) and 8 (lower middle). -
attribute definition:
target_desc
The target_desc element describes the characteristics of a particular target. -
attribute definition:
light_source_phase_angle
The light_source_phase_angle element provides a measure of the relationship between the spacecraft viewing position and the light source. Light_source_phase_angle is defined as the angle between a vector from the intercept point to the light source and a vector from the intercept point to the spacecraft. -
attribute definition:
mro:dll_locked_once_flag
The MRO:DLL_LOCKED_ONCE_FLAG element indicates if the Digital Lock Loop ever locked during a HiRISE observation. -
attribute definition:
msl:laser_mode
The MSL:LASER_MODE element specifies, for ChemCam on MSL, whether to fire or not fire the laser. -
attribute definition:
buffer_mode_id
The BUFFER_MODE_ID element identifies the buffer storage mode used by an instrument. Note: For MARS EXPRESS the data from the Super Resolution Channel (SRC) are in 14-bit. A small buffer connected to this channel can store 4 images in 14-bit (BUFFER_14) or 8 images converted to 8-bit (BUFFER_8), which are then sent to the Data Processing Unit (DPU) at the end of imaging. The data can also be sent directly to the DPU (DIRECT), but this is only possible for 8-bit data. -
attribute definition:
lro:dlre_ch6_tb_max
The LRO:DLRE_CH6_TB_MAX element gives the maximum recorded brightness temperature value for channel 6 in a DLRE RDR data product. -
attribute definition:
map_series_id
The map_series_id element identifies a map series (as specified by the agency which issued the map). -
attribute definition:
axes
The axes element identifies the number of axes or dimensions of an array or qube data object. -
attribute definition:
star_name
The star_name element provides the identifying name of star, including the catalog name if necessary. Examples include 'sigma Sgr' and 'SAO 123456' (for star number 123456 in the Smithsonian Astrophysical Observatory catalog). -
attribute definition:
msl:auto_delete_flag
The msl:auto_delete_flag indicates if the product will be automatically deleted onboard after it is transmitted. -
attribute definition:
parameter_set_id
The parameter_set_id element identifies the parameter set which was used to produce the data file. Note: For Cassini, typically this will be the COMMAND_SEQUENCE_NUMBER with a counter/character appended to the end. Instrument operations (IO) does not insure or check that this convention is followed. -
attribute definition:
lro:calibration_software_ver_id
The CALIBRATION_SOFTWARE_VER_ID element indicates the version of calibration software used to generate a data product. -
attribute definition:
kernel_type_id
The kernel_type_id element identifies the type of the SPICE kernel file -
attribute definition:
mro:ccd_flag
The MRO:CCD_FLAG element identifies which CCDs were operating at the time of an observation. There is a special processing flag for each CCD used in the observation. The ordering for the values is RED0, RED1, RED2, RED3, RED4, RED5, RED6, RED7, RED8, RED9, IR10, IR11, BG12, and BG13. Values are as follows: ON = the CCD was actively acquiring data during the observation. OFF = the CCD was turned off during the observation. -
attribute definition:
mro:typespec_num_row
The center row of the type location for a particular CRISM type spectrum used as the numerator of the spectral ratio. -
attribute definition:
msl:gop_length
The MSL:GOP_LENGTH element provides an array of JPEG sizes in bytes, for each image in a GOP, starting with MSL:GOP_FRAME_INDEX 0. See note under MSL:GOP_TOTAL_FRAMES for GOP description. -
attribute definition:
mess:aex_bacb
The background brightness used for MDIS automatic exposure time calculation. In a test image that it analyzed to determine an exposure time using automatic exposure, DPU hardware generates a histogram of the image. The histogram is analyzed by the software to determine if the image is overexposed or underexposed, and the exposure time is adjusted accordingly by analyzing the histogram of raw DN values in different brightness bins. The background or dark current level (MESS:AEX_BACB) is taken into account and is assumed to be a constant value. A threshold of number of pixels (MESS:AEX_STHR) is allowed to exceed a target brightness (MESS:AEX_TGTB). Starting with the maximum value, the number of pixels exceeding the target is counted, and the brightness of the histogram bin in which that threshold is reached (MESS:AEX_STAT) is reported. The exposure time is scaled back by the ratio of MESS:AEX_TGTB/MESS:AEX_STAT. -
attribute definition:
msl:led_state_flag
The MSL:LED_STATE_FLAG element specifies, for the MAHLI, the state of the LED. LEDs states may be either ON or OFF. This keyword is not applicable for Mastcam and MARDI instruments. -
attribute definition:
timeout_parameter
The TIMEOUT_PARAMETER element provides the time at which an operation will timeout. Note: For MER, this is the revolve timeout for grinding. If the grinding doesn't complete a full revolution within this time it will determine that it is not making sufficient progress and end the grinding. -
attribute definition:
remote_node_privileges_id
The remote_node_priviledges_id element identifies the systems at a remote node (or nodes) which a user is priviledged to access.
Data Sets and Information
Result pages: 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24