Abstract 

ISO 22644:2006 specifies two standard message formats for use in transferring spacecraft orbit information between space Agencies: the Orbit Parameter Message (OPM) and the Orbit Ephemeris Message (OEM). Such exchanges are used for

  • pre-flight planning for tracking or navigation support;
  • scheduling tracking support;
  • carrying out tracking operations (sometimes called metric predicts);
  • performing orbit comparisons;
  • carrying out navigation operations such as orbit propagation.

ISO 22644:2006 includes sets of requirements and criteria that the message formats have been designed to meet. For exchanges where these requirements do not capture the needs of the participating Agencies, another mechanism may be selected.


General information

  • Status :  Withdrawn
    Publication date : 2006-05
  • Edition : 1
    Number of pages : 50
  • :
    ISO/TC 20/SC 13
    Space data and information transfer systems
  • 49.140
    Space systems and operations

Got a question?

Check out our FAQs

Customer care
+41 22 749 08 88

Opening hours:
Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1)

Keep up to date with ISO

Sign up to our newsletter for the latest news, views and product information.