[Cesg-all] PRP A3-31 Announcement of Review Opportunity

[ccsds_rapporteur]

Control Number: PRP A3-31

The following draft CCSDS Recommendation has been placed on line for CCSDS 
Agency review:

      CCSDS 502.0-R-3.  Orbit Data Messages.
                        Red Book.  November 2003.

DOCUMENT DESCRIPTION:  This draft Recommendation specifies a modern 
spacecraft ephemeris (trajectory) data standard for use in transferring 
spacecraft orbit information between CCSDS Member Agencies.  Two 
recommended orbit data messages are described:  the Orbit Parameter Message 
(OPM) and the Orbit Ephemeris Message (OEM).  The two recommended orbit 
data messages carry the object identification, the coordinate frame center, 
the coordinate frame identification, and the time system.

The due date for receipt of review comments by the Secretariat is 
2004-2-17.  Area Directors and WG/BOF Chairs may submit review comments 
directly to the CCSDS Review Coordinator.  More information is available at 
the Web sites identified below.

The review document, in Portable Document Format (PDF), and associated 
review materials are available for downloading at the following locations:

primary site:   http://www.ccsds.org/review/rpa331/
alternate site: http://ccsds.gst.com/review/rpa331/