NSSDCA/COSPAR ID: 1998-029A
USA 139 is an American (National Reconnoissance Office) military reconnoissance spacecraft in the MILSTAR 3 series that was launched from Cape Canaveral Air Station by a Titan 4B rocket.
Launch Date: 1998-05-09
Launch Vehicle: Titan 4B
Launch Site: Cape Canaveral, United States
Questions and comments about this spacecraft can be directed to: Coordinated Request and User Support Office