Trumpet (original) (raw)

Trumpet
Class: SIGINT. Destination: Molniya Orbit. Nation: USA. Agency: U.S. Air Force. Trumpet signals intelligence satellites were equipped with a large deployable mesh antenna, and were designed to monitor Soviet communications and missile tests. They were placed into Molniya-type orbits. The structural limitation of the Centaur upper stage implies their mass was limited to 5200 kg, although the theoretical payload of the Titan IV launch vehicle into a Molniya-type orbit was more like 8,000 kg. Number Flights: 3.00. First Flight: USA 103. First Flight Date: 1994-05-03. Last Flight: USA 136. Last Flight Date: 1997-11-08. Typical orbit: 872 x 26198 km, 60.8 deg inclinaton. Associated Launch Vehicle: Titan 4. Trumpet Chronology 1994 May 3 - USA 103 - Launch Site: Cape Canaveral. Launch Vehicle: Titan 4. Mass: 5�200 kg (11�400 lb). Perigee: 518 km (321 mi). Apogee: 537 km (333 mi). Inclination: 55.10 deg. Period: 95.20 min. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B). 1995 July 10 - USA 112 - Launch Site: Cape Canaveral. Launch Vehicle: Titan 4. Mass: 5�200 kg (11�400 lb). Perigee: 1�000 km (600 mi). Apogee: 39�000 km (24�000 mi). Inclination: 64.00 deg. 1997 November 8 - USA 136 - Launch Site: Cape Canaveral. Launch Vehicle: Titan 4. Mass: 5�200 kg (11�400 lb). Perigee: 1�100 km (600 mi). Apogee: 39�059 km (24�270 mi). Inclination: 63.60 deg. Bibliography and Further Reading McDowell, Jonathan, Jonathan's Space Report (Internet Newsletter), Harvard University, Weekly, 1989 to Present. Essential internet newsletter recording worldwide weekly space events. Accessed at: http://www.planet4589.org/jsr.html. USAF Satellite Database, USAF Institute of Technology, 1995. Accessed at: ftp://archive.afit.af.mil/pub/space/. Krebs, Gunter, Gunter's Space Page, University of Frankfurt, 1996. Accessed at: http://www.skyrocket.de/space. JPL Mission and Spacecraft Library, Jet Propulsion Laboratory, 1997. Accessed at: http://msl.jpl.nasa.gov/home.html. McDowell, Jonathan, Jonathan's Space Home Page, Harvard University, 1997-present. Jonathan McDowell's complete on-line listing of all objects orbited and over 20,000 rocket launches Accessed at: http://www.planet4589.org/jsr.html.
Contact us with any corrections, additions, or comments. Conditions for use of drawings, pictures, or other materials from this site.. To contact astronauts or cosmonauts.© Mark Wade, 1997 - 2007 except where otherwise noted.