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attribute definition:
newhorizons:approx_target_line
Used in New Horizons (NH) mission instrument observations labels as an approximate line location in an image of the center of a target. This is only an estimate of the location and may be off by a large fraction, or multiple, of the size of the image, especially for flyby encounters. See also NEWHORIZONS:APPROX_TARGET_NAME and NEWHORIZONS:APPROX_TARGET_SAMPLE. -
attribute definition:
true_anomaly_angle
The true_anomaly_angle element provides the value of the angle between the line connecting an orbiting body and the body around which it is orbiting (its primary) and the line connecting the periapsis position and the primary. True_anomaly is measured in the orbiting body's orbital plane in the direction of motion from periapsis. -
attribute definition:
stop_error_state
The STOP_ERROR_STATE element provides the state of the error flags returned by an instrument or instrument host at the end of a specified event. Note: For Mars Pathfinder, this was the state of the APXS error state flags at the end of an APXS sampling interval. -
attribute definition:
cognizant_full_name
The cognizant_full_name element provides the full name of the individual who has either developed the processing software or has current knowledge of its use. See also: full_name. -
attribute definition:
effective_time
The effective_time is an alias for start_time used by AMMOS- MGN ephemeris files to define the time at which the data takes effect. -
attribute definition:
telescope_id
The telescope_id element uniquely identifies a particular telescope. -
attribute definition:
lro:dlre_scalt_max
The LRO:DLRE_SCALT_MAX element gives the maximum recorded spacecraft altitude value (distance from surface of moon to spacecraft) in a DLRE RDR data product. -
attribute definition:
mess:aex_mine
The minimum allowable exposure time from an 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:
ppi:time_format
The keyword PPI:TIME_FORMAT is used to modify the meaning of the keyword-value pair DATA_TYPE = TIME within a data element (COLUMN or FIELD). This keyword can only be used in data elements where the DATA_TYPE is set to TIME. If the PPI:TIME_FORMAT keyword does not appear in the data element object, then DATA_TYPE=TIME will have the default interpretation of time in PDS standard time format. This keyword may only be used to define alternative time formats used in data files. Time values provided in labels and catalog files must be in PDS format. The value assigned to the PPI:TIME_FORMAT keyword is a format specification. This specification defines the interpretation of every character (alpha, numeric, and non alpha-numeric) included in a date/time string. Some characters are interpreted as components of the date/time while others are delimiters. Any character or group of characters that are interpreted are described using a date/time element 'token'. The set of valid tokens forms a standard value set, described below. The format specification describes the parsing algorithm for the date/time string of the length BYTES (not including any quotes) from left to right. PPI:TIME_FORMAT may not be used to describe times which are defined relative to some reference time or epoch (e.g. Julian Date). As a result, times defined relative to some epoch must be declared as having some DATA_TYPE other than 'TIME'. Each of the tokens are described as follows: %YEAR% is the four-digit integer year token (length = 4). %YR% is the two-digit integer year token. Values greater then 50 are referenced to 1900 and values less or equal to 50 are referenced to 2000 (length = 2). %YEARBC% is the four-digit integer year BC token (length = 2). %FYEAR% is the generic fractional year token. There can be any number of digits before the decimal point, however, four should be sufficient for most data sets. If less than 4 digits precede the decimal point, leading zeros are implied. FYEAR is referenced to 0001 AD for positive values and negative values indicate years BC. %MM% is the two-digit integer month token. Valid range is 1-12 (length = 2). %MON% is the three character month abbreviation token from the set {JAN, FEB, MAR, APR, MAY, JUN, JUL, AUG, SEP, OCT, NOV, DEC}. The set is not case sensitive so that Jan = jan = JAN (length=3). %MONTH% is the full month name (English) token where month is from the set {January, February, March, April, May, June, July, August, September, October, November, December}. The month value is not case sensitive so that May = may = MAY (length = 3-8). %DD% is the two-digit integer day of month token. Valid range is 1-31 (length = 2). %DOY% is a three-digit integer day of year token where Jan 1 = 001. Valid range is 1-366 (length=3) %DOY0% is a three-digit integer day of year token where Jan 1 = 000. If less than three digits are found then leading zero's are implied. Valid range is 0-365 (length = 3). %FDAY% is the generic fractional day token. The field is terminated by a non-numeric character when the column BYTES is reached. FDAY can be either floating point or integer and can be either positive or negative. The start (FDAY=0.0) date/time for the generic FDAY counter is specified by a year elsewhere in the TIME_FORMAT string. %HR% is the two digit integer hour of day token. If only one digit is found, then a leading zero is implied. Valid range is 0-23 (length = 2). %FHR% is the generic fractional hour token. The field is terminated by a non-numeric character or when the column BYTES is reached. FHR can be either floating point or integer and can be either positive or negative. The start date/time for the generic FHR is set elsewhere in the TIME_FORMAT string by the next largest time element token. %MIN% is the two-digit integer minute of hour token. If only one digit is found, then a leading zero is implied. Valid range is 0-59 (length = 2). %FMIN% is the generic fractional minute token. The field is terminated by a non-numeric character or when the column BYTES is reached. FMIN can be either floating point or integer and can be either positive or negative. The start date/time for the generic FMIN is set elsewhere in the TIME_FORMAT string by the next largest time element token. %SEC% is the two-digit second of minute token. If only one digit is found, then a leading zero is implied. The valid range is 0- 60 (length = 2). %FSEC% is the generic fractional second token. The field is terminated by a non-numeric character or when the column BYTES is reached. FSEC can be either floating point or integer and can be either positive or negative. The start date/time for the generic FSEC is set by the next largest time element token in the TIME_FORMAT string. %MSEC% is the three-digit integer millisecond of second token. If less than 3 digits are found, the leading zeros are implied. The valid range is 0-999 (length = 3). %FMSEC% is the generic fractional millisecond token. The field is terminated by a non-numeric character or when the column BYTES is reached. FMSEC can be either floating point or integer and can be either positive or negative. The start date/time for the generic FMSEC is set by the next largest time element token in the TIME_FORMAT string. -
attribute definition:
valid_minimum
The valid_minimum data element represents the minimum value that is valid for a data object. Valid_minimum and valid_ maximum define the valid range of values for a data object, such as -90 to 90 for a column object containing latitude values. Note: this element should appear in labels only between the 'OBJECT =' and 'END_OBJECT=' lines of an object with a specific data type. -
attribute definition:
lro:dlre_ch6_radiance_min
The LRO:DLRE_CH6_RADIANCE_MIN element gives the minimum recorded value of radiance for channel 6 in a DLRE RDR data product. -
attribute definition:
angular_distance_name
The ANGULAR_DISTANCE_NAME element is an array that provides the formal names identifying each value in ANGULAR_DISTANCE. -
attribute definition:
maximum_brightness_temperature
The maximum_brightness_temperature element provides the maximum brightness temperature value measured within a given set of data or a given sequence. Brightness temperature is the temperature of aideal blackbody whose radiant energy in a particular wavelength range is the same as that of an observed object or feature. -
attribute definition:
articulation_dev_instrument_id
The ARTICULATION_DEV_INSTRUMENT_ID element provides an abbreviated name or acronym that identifies the instrument mounted on an articulation device. -
attribute definition:
contamination_desc
The contamination_desc element describes the type of data contamination which is associated with a particular contamination_id value. The various values of contamination_id and contamination_desc are instrument dependent. -
attribute definition:
resource_name
The Resource_Name element provides the descriptive name of a resource url as it should appear in the Data Set Search results page. -
attribute definition:
iras_clock_angle_range
The change in the clock angle during the elapsed time of the scan. -
attribute definition:
oblique_proj_x_axis_vector
Unit vector in the direction of the X axis of the oblique coordinate system used in the OBLIQUE CYLINDRICAL projection, in terms of the X, Y, and Z axes of the standard body-fixed coordinate system. In each system, the X axis points from the body center toward longitude and latitude (0,0) in that system, and the Z axis to (0,90), and the Y axis completes a right-handed coordinate system. The OBLIQUE_PROJ_X/Y/Z_AXIS_VECTORS make up the rows of a rotation matrix that when multiplied on the left of a vector referenced to the standard coordinate system converts it into its equivalent in the oblique coordinate system. This rotation matrix is the product of successively applied rotations by +/- OBLIQUE_PROJ_POLE_LONGITUDE around the Z axis, 90 - OBLIQUE_PROJ_POLE_LATITUDE around the once-rotated Y axis, and OBLIQUE_PROJ_POLE_ROTATION around the twice-rotated Z axis. For the first of these rotations, a positive sign is used if the OBLIQUE_PROJ_POLE_LONGITUDE is given as an east longitude, and a negative sign if it is expressed as a west longitude. -
attribute definition:
comment_text
The comment_text indicates a line of text in a user's comments. -
attribute definition:
early_pixel_scale_flag
The EARLY_PIXEL_SCALE_FLAG element indicates the scaling of pixels. If TRUE, pixels are scaled early (from 12 to 8 bits). -
attribute definition:
row_suffix_structure
The row_suffix_structure element indicates a pointer to a file that defines the structure of the ROW_SUFFIX_BYTES. See also: file_name Note: In the PDS this data element is obsolete. It is kept in the data dictionary for historical purposes to allow data validation tools to function. According to current standards, the structures of prefix and suffix data are illustrated through the use of the table object. -
attribute definition:
stop_time_et
The STOP_TIME_ET element provides the time of the end of data acquisition in spacecraft event time (SCET), ephemeris time (ET) format. -
attribute definition:
inst_cmprs_seg_first_line_samp
The INST_CMPRS_SEG_FIRST_LINE_SAMP element is an array of values which each nth element identifies the line sample within a source image that corresponds to the first line sample the nth compression segment applies. -
attribute definition:
mess:latch_up
Indicator if MDIS FPU (focal plane unit) is latched up. If the value is 1 then the image data are probably invalid. 0 = OK 1 = Latched. -
attribute definition:
vector_component_type
The vector_component_type element identifies the type of information which is provided by a particular vector component identification element. Example values: LATITUDE, LONGITUDE, VELOCITY. -
attribute definition:
solar_elongation
The angle between the line of sight of observation and the direction of the Sun. Note: For IRAS: The line of sight of observation is the boresight of the telescope as measured by the satellite sun sensor. -
attribute definition:
minimum_instrument_temperature
The minimum instrument_temperature element provides the minimum temperature, in degrees Celcius, of an instrument or some part of an instrument. -
attribute definition:
mro:cpmm_positive_1_8_current
The MRO:CPMM_POSITIVE_1_8_CURRENT element provides the positive 1_8 current of the HiRISE CCD Processing/Memory Module. -
attribute definition:
sequence_number
The sequence_number element indicates a number designating the place occupied by an item in an ordered sequence. -
attribute definition:
max_auto_expos_iteration_count
The MAX_AUTO_EXPOS_ITERATION_COUNT element specifies the maximum number of exposure iterations the instrument will perform in order to obtain the requested exposure when operating in an autonomous mode. -
attribute definition:
start_byte
The start_byte element in a data object identifies the location of the first byte of the object, counting from 1. For nested objects, the start_byte value is relative to the start of the enclosing object. -
attribute definition:
receiver_name
The receiver_name element provides the unique full name of a receiving instrument. It is used for experiments that have both transmitting and receiving instruments, in which case the instrument_name element refers to the transmitter. -
attribute definition:
msl:instrument_focus_distance
The MSL:INSTRUMENT_FOCUS_DISTANCE element specifies the distance to the target to use for focusing the instrument. See also INSTRUMENT_FOCUS_MODE. For MSL ChemCam, specifies the distance to target for 'MANUAL' focus, or the seed for 'BASELINE' focus. -
attribute definition:
instrument_azimuth_method
The instrument_azimuth_method identifies the method used to calculate the instrument azimuth from the azimuth motor clicks. -
attribute definition:
elevation
The elevation element provides the angular elevation 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) above the azimuthal reference plane. Elevation is measured in a spherical coordinate system. The zero elevation point lies in the azimuthal reference plane and positive elevation is measured toward the positive direction of the principal axis of the spherical coordinate system. See azimuth. -
attribute definition:
flattening
The flattening data element provides the value of the geometric oblateness of a target body, defined as the ratio of the difference between the body's equatorial and polar radii to the equatorial radius (in most cases, evaluated as: ( a_axis_radius - c_axis_radius ) / a_axis_radius). -
attribute definition:
product_release_date
The product_release_date data element identifies the date on which a particular data product is released from one system or process to another, according to system- or application-specific criteria. -
attribute definition:
instrument_mode_desc
The instrument_mode_desc element describes the instrument mode which is identified by the instrument_mode_id element. -
attribute definition:
sun_line_sample
The SUN_LINE_SAMPLE element provides the sample location of the sun within the image. -
attribute definition:
mess:subf_y3
The zero-based starting row of the THIRD 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:
site_name
The site_name element is used to describe the spacecraft commanding site for AMMOS CMD subsystem. Values include MASTER, MCCC, SEQTRAN, GSOC. -
attribute definition:
core_null
The core_null element identifies a special value whose presence indicates missing data. This value must be algebraically less than the value of the core_valid_minimum element. For Standard ISIS Qubes, the null value is chosen to be the algebraically smallest value allowed by the core_item_type and core_item_bytes elements. The general data type of this element is determined by the core_item_type element. If the latter is integer or unsigned integer, the general data type is integer. If core_item_type is real, the value will be hardware- specific (or rather floating-point-representation-specific) so that it may be specified exactly at the bottom of the allowable range of values. A non-decimal (hexadecimal) general data type is used for this purpose; e.g. 16#FFFFFFFF# for a VAX. Note: In the PDS, the CORE_NULL element corresponds directly to the data element MISSING. -
attribute definition:
target_parameter_value
The target_parameter_value element provides the numeric value associated with a particular target parameter, whose name is provided in the associated target_parameter_name element. Each value provided is associated with a particular source, which is completely referenced in the associated data_source_desc. See also target_parameter_uncertainty, target_parameter_epoch. -
attribute definition:
msl:obs_from_limit_switch
The MSL:OBS_FROM_LIMIT_SWITCH, when set to 1, causes the mast unit (MU) focus motor to move to the limit switch position before moving to the specified focus position in the MANUAL or BASELINE focus options. It is ignored with the AF_OFFSET focus option. -
attribute definition:
mro:ikf_confidence_level
The MRO:IKF_CONFIDENCE_LEVEL 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 confidence level parameter associated with the Grubb's Test used for outlier detection of elements of the model residuals in the Iterative Kernel Filter procedure. Typical values are near 0.95. -
attribute definition:
detector_desc
The detector_desc element describes a detector utilized by an instrument. -
attribute definition:
minimum_instrument_parameter
The minimum_instrument_parameter element provides an instrument's minimum usefully detectable signal level for a given instrument parameter. This value indicates the physical value corresponding to the minimum output of an instrument. The instrument parameter to which this relates is identified by the instrument_parameter_name element. -
attribute definition:
data_records
The data_records data element indicates the number of records that appear in a particular data file. Note: Within AMMOS, this element is used as a validation tool to ensure data integrity for stream files that have no end marker. -
attribute definition:
packet_map_mask
The PACKET_MAP_MASK element is a binary or hexadecimal number identifying which of a data file's expected packets were actually received. The digits correspond positionally with the relative packet numbers of the data file. The bits are to be read left to right; i.e., the first (left-most) digit of the number corresponds to the first packet of the data file. A bit value of 1 indicates that the packet was received; a value of 0 indicates that it was not received. The number is stored in the PDS radix notation of <radix>#<value>#. -
attribute definition:
lro:dlre_ch2_radiance_max
The LRO:DLRE_CH2_RADIANCE_MAX element gives the maximum recorded value of radiance for channel 2 in a DLRE RDR data product.
Data Sets and Information
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