A. List of New International Designations and Launch Dates. USA 81 Apr 25 B. Text of Launch Announcements. It also carries an RPA for plasma measurement and another instrument for detecting gamma-ray bursts. U.S.A.'s space shuttle Endeavor was launched from Cape Canaveral. 1992-023A U.S.A. 81, a USA spacecraft was launched.
Orbital parameters are unavailable.
C. Spacecraft Particularly Suited for International Participation Category I Spacecraft with essentially continuous radio beacons on frequencies less than 150 MHz, or higher frequencies if especially suited for ionospheric or geodetic studies. To see a list select here . Global Positioning System satellites useful for navigational purposes and geodetic studies. To see a list select here . Due to budgetary constraints, this category has not been listed.