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Report Style: Spice BodyList

Provides a listing of the SPICE segments from the SPICE ephemeris files (i.e., *.bsp files) that have been loaded and sorted by body id.

Each segment contains data (indicated by the segment type) to generate ephemeris for one body (indicated by the body id). The data uses a reference origin (indicated by the center id) and a reference frame (indicated by the frame id). The span of the ephemeris data is reported by the Start Time and Stop Time.

SPICE uses a priority scheme to resolve conflicts when more than one segment contains ephemeris for the same body id: see the description for Status.



Data Provider:Spice Body List

Type: Fixed data. Intended to be used only with elements from this same data provider.

Availability: Reports

Column Listing

ColumnColumn NameElementTypeDimensionDescription
1Body IdBody IdIntegerUnitlessThe integer identifer used by SPICE for the body. Typically, natural bodies (e.g., planets, moons, asteroids, comets) have positive numbers and spacecraft are assigned negative numbers.
2Body NameBody NameTextUnitlessThe name that corresponds to the body id as defined by SPICE.
3StatusStatusTextUnitlessAn enumeration indicating whether (i) the segment's ephemeris has no overlap with any other segment at higher priority for this body in the currently loaded set of SPICE files (Active); (ii) there exists another segment at higher priority that overlaps part of this segment's ephemeris span (Partially Superseded); or (iii) there exists another segment at higher priority that entirely overlaps this segment's ephemeris span (Superseded). When Active, this segment's ephemeris may be used by SPICE when generating ephemeris for the body. When Superseded, none of the ephemeris of this segment is used by SPICE to generate ephemeris. When Partially Superseded, only the portions of the ephemeris span that are not overlapped by a higher priority segment's span may be used to generate ephemeris for the body. SPICE prioritizes later segments over earlier segments for segments contained within the same file and prioritizes files loaded later over those loaded earlier.
4Start TimeStart TimeReal Number or TextDateThe start time of the segment's ephemeris.
5Stop TimeStop TimeReal Number or TextDateThe end time of the segment's ephemeris.
6FilenameFilenameTextUnitlessThe filename of the file that contains this segment.
7Segment NameSegment NameTextUnitlessA short description of the segment (if provided).
8Center Body IdCenter Body IdIntegerUnitlessThe integer identifer used by SPICE for the body serving as the reference origin. The segment's ephemeris for the body is provided as an offset with respect to this origin. Typically, natural bodies (e.g., planets, moons, asteroids, comets) have positive numbers and spacecraft are assigned negative numbers.
9Center Body NameCenter Body NameTextUnitlessThe name that corresponds to the center id as defined by SPICE.
10Frame IdFrame IdIntegerUnitlessThe integer identifer used by SPICE for the reference frame in which the segment's ephemeris is expressed.
11Frame NameFrame NameTextUnitlessThe name that corresponds to the frame id as defined by SPICE. Note: SPICE uses J2000 as the name when id=1 but actually means ICRF. This is denoted by J2000 (ICRF) in this data provider.
12Segment TypeSegment TypeIntegerUnitlessThe integer identifer used by SPICE that identifies the type of information being stored for generating the ephemeris of the body.
13Segment Type NameSegment Type NameTextUnitlessThe name that corresponds to the segment type as defined by SPICE.
14File Segment NumberFile Segment NumberIntegerUnitlessThe integer identifier of the segment within the file. The first segment uses the value 1 and the last segment has the value of the number of segments within the file.
15FilepathFilepathTextUnitlessThe absolute filepath for the file containing this segment.