US-PM
US-PM |
US-PM (Upravlenniye Sputnik Passivny Modifikirovanny) (also reported as US-PU) was a solar powered improved EORSAT (Electronic Ocean Reconnaisance Satellite). It used an passive ELINT devices to track naval vessels from space by registering their electronic emmissions.
US-PM was a modified version of the US-P and replaced both the US-P and the nuclear US-A satellites.
It shared the same US bus with its precedessors, which provided maneuvering capabilities to the spacecraft.
The US-PM were placed into a 420 km orbits inclined 65 degrees by the Tsiklon-2 booster. Systems aboard the 3300 kg satellite included the Radio-Technical Reconnaissance system and systems for electronic camouflage and self-protection. An engine unit maintained the orbital altitude and made a final deorbit of the satellite at the end of the mission.
It has been reported, that Kosmos 2421 failed to open one of its eight solar panel segments after launch.
US-PM will be replaced by the new Pion-NKS ELINT satellites of the Liana system.
| Nation: | U.S.S.R. |
|---|---|
| Type / Application: | Ocean surveilance, passive |
| Operator: | |
| Contractors: | |
| Equipment: | |
| Configuration: | US-Bus |
| Propulsion: | |
| Lifetime: | |
| Mass: | |
| Orbit: |
| Satellite | Date | LS | Launcher | Remarks: | |
|---|---|---|---|---|---|
| Kosmos 2238 (US-PM #1) | 30.03.1993 | TB LC-90 | Tsiklon-2 | ||
| Kosmos 2244 (US-PM #2) | 28.04.1993 | TB LC-90 | Tsiklon-2 | ||
| Kosmos 2258 (US-PM #3) | 07.07.1993 | TB LC-90 | Tsiklon-2 | ||
| Kosmos 2264 (US-PM #4) | 17.09.1993 | TB LC-90 | Tsiklon-2 | ||
| Kosmos 2293 (US-PM #5) | 02.11.1994 | TB LC-90 | Tsiklon-2 | ||
| Kosmos 2313 (US-PM #6) | 08.06.1995 | TB LC-90 | Tsiklon-2 | ||
| Kosmos 2326 (US-PM #7) | 20.12.1995 | TB LC-90 | Tsiklon-2 | ||
| Kosmos 2335 (US-PM #8) | 11.12.1996 | TB LC-90 | Tsiklon-2 | ||
| Kosmos 2347 (US-PM #9) | 09.12.1997 | TB LC-90 | Tsiklon-2 | ||
| Kosmos 2367 (US-PM #10) | 26.12.1999 | TB LC-90 | Tsiklon-2 | ||
| Kosmos 2383 (US-PM #11) | 21.12.2001 | TB LC-90 | Tsiklon-2 | ||
| Kosmos 2405 (US-PM #12) | 28.05.2004 | TB LC-90 | Tsiklon-2 | ||
| Kosmos 2421 (US-PM #13) | 25.06.2006 | TB LC-90 | Tsiklon-2 |
| Further US missions: |
Last update: 27.09.2009
Contact: gunter.krebs@skyrocket.de
© Gunter Dirk Krebs