TDRS-J was initially positioned in geostationary orbit at a longitude 153 degrees west of the Greenwich Meridian,[6] and following on-orbit testing, it received the operational designation TDRS-10. In December 2003, it was moved to 151.5° west, arriving the next month. It remained there until June, when it departed for 42.3° west. It arrived there in November, and has since been slowly drifting eastwards. By November 2005, it was at 42° west, and in November 2006, it was recorded to have been at 41.6° west.[6] In July 2009, it was at 40.75° west.[1] In May 2020, it was at 171 degrees west.[7]
^Krebs, Gunter. "TDRS 8, 9, 10". Gunter's Space Page. Retrieved 10 August 2009.
^McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved 10 August 2009.
^McDowell, Jonathan. "Index". Geostationary Orbit Catalog. Jonathan's Space Page. Archived from the original on 6 April 2010. Retrieved 10 August 2009.
Launches are separated by dots ( • ), payloads by commas ( , ), multiple names for the same satellite by slashes ( / ). Crewed flights are underlined. Launch failures are marked with the † sign. Payloads deployed from other spacecraft are (enclosed in parentheses).