Almanac information is available for download from this page. You may very well need to change the health settings when you use Yuma or SEM almanac data. While the orbital description data is generally usable for months, the satellite health may change at any time. For information on satellite health at times other than the almanac "Time Of Applicability", see the NANUs or status messages. An almanac entry of 000 indicates the satellite is healthy.

• Current Almanac - YUMA Format (.alm)
• Current SEM Almanac - SEM Format (.al3)
• Almanac, NANU, and Ops Advisory Archives, sorted by year, 1990-2007
• Definition of a YUMA Almanac
• Definition of a SEM Almanac