Double Star
Satellite
Double Star was a joint satellite based space mission by the China National Space Administration and the European Space Agency. It was the first space mission launched by China to investigate Earth's magnetosphere. It consisted of two satellites:... Wikipedia
Decay date: 14 October 2007 (TC-1)
Launch date: 29 December 2003, 19:06 UTC (TC-1); 25 July 2004, 07:05 UTC (TC-2)
Mission duration: 3 years, 9 months, 15 days (TC-1); 19 years, 8 months and 15 days (TC-2)