The Mars Phoenix mission dictionary contains classes and attributes specific to the Mars Phoenix mission and its instruments. Phoenix version 1.0.0.0 PDS Build 1.24.0.0 (1O00) LDDTool version 15.3.0 Created with lddtool -plJ PDS4_PHOENIX_IngestLDD.xml Change Log 6/11/2026 GEO/JGW Initial version The Observation_Information class provides information about a science observation. The Phoenix_Parameters class is a superclass containing all Phoenix mission classes. 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 instument_mode_id attribute identifies an instrument-dependent designation of operating mode. The local_true_solar_time attribute is the local true solar time, as defined in the main PDS4 data dictionary, at the beginning of an observation. The mission_phase_name identifies a time period within the mission. The ops_token is a code associated with a Phoenix data product that provides information about the command sequence that caused the product to be acquired. The value is a 32-bit unsigned hexadecimal integer expressed in a PDS label as 16#AAAAPCCC#, where: - AAAA is the campaign ID assigned by the sequence planning team, - P is a 4-bit payload ID reserved for use by each instrument team, as defined by the team, and - CCC is the command sequence number, which is set to zero for each new campaign and automatically incremented with each command. The combination of ops_token and sol number should uniquely identify a Phoenix data product. ops_token_activity is the 16-bit activity code (campaign id) from the ops_token, represented as a 4-digit Hex value. ops_token_command is the 12-bit command sequence number of the ops token, represented as a 3-digit Hex value. ops_token_payload is the 4-bit payload id value of the ops token, represented as a single Hex digit. The product_type attribute identifies a group of data products within a collection that have some property in common. The product_version_id attribute identifies the version of an individual data product. The sol_number attibute is the number of the Mars day on which an observation was acquired. Landing day is Sol 0. The spacecraft_clock_start attribute provides the value of the spacecraft clock at the beginning of a time period of interest. The spacecraft_clock_stop attribute provides the value of the spacecraft clock at the end of a time period of interest.