The MER mission dictionary contains classes and attributes specific to the MER mission and instruments. This dictionary was created for the migration of MER data products from PDS3 to PDS4. Built with LDDTool -plMJ ldd-mer.xml Subclass for values of angular distance. Container class for general MER related parameters. Specifies the set of commands used to acquire a miniTES observation. Specifies one of several coordinate parameters for a miniTES observation. Main class to hold parameters related to a miniTES observation. Class for RAT brush request parameters RAT diagnostics and calibration parameters. Class of RAT grind request parameters. Container class for RAT parameters RAT operation parameters Class of RAT seek scan parameters. Subclass for values of rotation motor voltages. Subclass for values of torque gain. Subclass for values of z-axis velocity. This section contains the simpleTypes that provide more constraints than those at the base data type level. The simpleTypes defined here build on the base data types. This is another component of the common dictionary and therefore falls within the common namespace. The amount of radians to move around the RAT revolve axis before a scan completes or amount of radians to move before moving the RAT z-axis down one step. The name of the operation with the RAT revolve motor movement. The angular velocity used in the operation of the RAT revolve axis. Commanded number of calibration observations to average together. Commanded value of the number of icks to acquire during a calibration observation. Commanded value of the minimum number of icks between internal calibration looks. The commanded center azimuth of the acquired data. The commanded center elevation of the acquired data. The RAT z-axix backoff distance for a dwell operation after a grind to clear the RAT hole of dust. Commanded number of spectra to average together. Commanded value of the number of columns (azimuth steps) to acquire. This value is a code that defines the command operation. Identifies the frame in which the coordinate values are given. Name associated with each coordinate in the Coordinate_Parameters class. The unit for the coordinate value by coordinate_name in the Coordinate_Parameters class. The value of the coordinate named by coordinate_name in the Coordinate_Parameters class. The download_priority attribute specifies which data to downlink/transmit, based on order of importance. The lower numerical priority (higher-ranked number) data products are transmitted before higher numerical priority (lower-ranked number) data products. For example, an image with a downlink priority of 24 will be transmitted before an image with a downlink priority of 62. The allowable range is 0 to 99. Commanded value of the number of icks to acquire at one azimuth/elevation position. RAT error condition, mostly likely related to the butterfly contact switchs. Flags to indicate various RAT error states. See the RAT SIS for more details. The instantaneous field of view of the instrument that was used while acquiring the data. Specifies the gain state of the MiniTES analog signal amplifier. Commanded value of the end channel number to acquire minus one. Commanded value of the horizontal spacing between consecutive columns. Status of the primary laser. Only onen laser can be on at one time. Status of the backup laser. Only onen laser can be on at one time. The status of the laser heater. Provides the status of the Michelson motor. The 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. The reference day is '1', as landing day is Sol 1. Commanded value of the start channel number to acquire. Channel numbers start at zero. The magnet_id specifies a magnet that is visible in an image or measured by an instrument. The maximum RAT revolve motor velocity for a scan and grind operation. Number of RTIs at maximum current. The maximum allowable travel distance relative to the RAT z-axis hard stop. The mission_phase_name identifies a time period within the mission. Indicates which of the optical switches was used by the miniTES optical mirror. There are two switches for redundancy in case one fails. Commanded value of the phase correction algorithm to use on board. The producer_institution_name specifies the identity of the facility or institution that produced the product. The product_type identifies a group of data products within a collection that have some property in common, such as processing level, resolution, or instrument-specific setting. The product_version_id specifies the version of the product. It usually begins with a 'V' and followed by an identifier for the controlling camera SIS. Release_id is the identifier of a scheduled release of MER data from PDS. The first MER data release is Release 0001. The release_id for a given product is always the first release in which it appears, and does not change if the product is revised later. Specifics the RAT noload current value. Units are mA, but not given in the label. Specifics a torque value for the RAT grinding wheel rotation during a scan or grind operation. Given in units of mN*meter, but units are not listed in the label. Value of the voltage applied to the RAT grinding wheel rotation motor. The name of the RAT operation that the rotation voltage applies. Commanded value of the number of rows (elevation steps) to acquire. Specifics the number of RTIs that are skipped between telemetry samples in detailed RAT reports. Sol_number is the number of the Mars day on which an observation was acquired. Landing day is Sol 1. The spacecraft_clock_count_partition provides the clock partition active for the spacecraft_clock_start_count and spacecraft_clock_stop_count attributes. This attribute may be used when the spacecraft_clock values do not include a partition number. The spacecraft_clock_start_count is the value of the spacecraft clock at the beginning of an observation. It represents the number of ticks. If a fractional value is present, in some cases it means a true decimal fraction (i.e. milliseconds) while in other cases it stands for a count of 1/256th of a second (which stems from the fact that the fractional part was represented by a single byte in the original telemetry stream.) When comparing SCLK times or converting them to other time systems, it is important to know which of the two representations the SCLK string follows. Normally the documentation accompanying a particular data set defines which type of SCLK fractional part was used in that data set. The spacecraft_clock_stop_count is the value of the spacecraft clock at the end of an observation. It represents the number of ticks. If a fractional value is present, in some cases it means a true decimal fraction (i.e. milliseconds) while in other cases it stands for a count of 1/256th of a second (which stems from the fact that the fractional part was represented by a single byte in the original telemetry stream.) When comparing SCLK times or converting them to other time systems, it is important to know which of the two representations the SCLK string follows. Normally the documentation accompanying a particular data set defines which type of SCLK fractional part was used in that data set. The status of the spare bit within the command word. Specifics the time limit for the RAT revolve moter to make a complete revolution during a grind operation. Ratio of RAT rotate motor torque to current. Units are mN*meter/mA, but unit is not listed in label. RAT torque controller gain value. See RAT SIS, appendix B for units. The name for the type of RAT torque gain. Commanded value of the vertical spacing between consecutive rows. This is the offset for the RAT z-axis position at the start of a diagnostic, calibration, grind, or brush command. This is the RAT z-axis offset relative to the lower hard stop that the RAT will move to at the start of a brush command. The is the distance that the z-axis will step after a complete revolution. Specifics the z-axis velocity during a movement. Units are in mm/s, but are not listed in the label. The name of the RAT operation that the z-axis velocity applies. Commanded length of the center-burst region of the interferogram, which is compressed separately from zone1 and zone-3.