Kosmos 1867
Kosmos 1867 | |
Mission type | Radar ocean surveillance |
---|---|
COSPAR ID | 1987-060A |
SATCAT no. | 18187 |
Mission duration | ~ 11 months |
Spacecraft properties | |
Spacecraft type | Plazma-A |
Launch mass | 1,500 kilograms (3,307 lb) |
Start of mission | |
Launch date | July 10, 1987, 15:36:00 (1987-07-10UTC15:36Z) UTC |
Rocket | Tsyklon-2 |
Launch site | Baikonur 90 |
Orbital parameters | |
Reference system | Geocentric |
Regime | Low Earth |
Eccentricity | 0.00111 |
Perigee altitude | 797 kilometres (495 mi) |
Apogee altitude | 813 kilometres (505 mi) |
Inclination | 65.01 degrees |
Period | 100.8 minutes |
Epoch | April 14, 2014 UTC 21:26:10.75 |
Kosmos 1867 (Russian: Космос 1867) is a nuclear powered radar ocean reconnaissance satellite (RORSAT) that was launched by the Soviet Union on July 10, 1987. It was put into an orbit of about 800 km (500 mi). Its mission was to monitor the oceans for naval and merchant vessels, and had a mission life of about eleven months.[1][2][3][4]
Description
Kosmos 1867 was launched on July 10, 1987, on a Tsyklon-2 rocket from the Baikonur Cosmodrome. It was put into an orbit about 800 km (500 mi) above the Earth's surface at an inclination of 65° and a period of 100.8 minutes. The satellite had a mission life of about 11 months.[1][2][4]
The satellite was powered by TOPAZ 1 nuclear reactor. This reactor was cooled by liquid sodium-potassium (NaK) metal, and used a high-temperature moderator containing hydrogen and highly enriched fuel. The reactor produced electricity using a thermionic converter. The satellite used a Plazma-2 SPT Hall-effect thruster for propulsion.[3][4]
The mission of Kosmos 1867 was to search the oceans for naval and merchant vessels. Unlike earlier Soviet RORSAT satellites, Kosmos 1867 and its twin, Kosmos 1818, were launched into high orbits. This reduced the likelihood of mishaps resulting in uncontrolled re-entry of radioactive material, as had occurred with Kosmos 954 and Kosmos 1402, which showered the Earth with radioactive debris.[4]
In 1992, Kosmos 1867 had a visual magnitude of approximately 3.3.[5]
Kosmos 1867 had become damaged, resulting in several fragments of space debris. It is suspected that the coolant tube had leaked NaK metal, in a manner similar to Kosmos 1818 in 2008.[6] On April 8, 2014, the US Space Surveillance Network reported that 11 new objects were detected, and 24 more objects ware reported on April 15, 2014.[citation needed] The coolant tube of Kosmos 1867 may have cracked due to thermal stresses by repeated solar heating, or by an impact.
References
- ^ a b "Cosmos 1867". Real Time Satellite Tracking. N2YO.com. Retrieved 2009-01-25.
- ^ a b "Cosmos 1867". NSSDC Master Catalog Search. NASA. Retrieved 2009-01-24.
- ^ a b Broad, William J. (January 15, 1989), "Russians Disclose Satellites Carry New Reactor Type", New York Times
- ^ a b c d "New Debris Seen from Decommissioned Satellite with Nuclear Power Source" (PDF). Orbital Debris Quarterly News. 13 (1). NASA. January 2009. Retrieved 18 June 2018.
- ^ "Spacecraft Particularly Suited for International Participation: Category I". SPACEWARN Bulletin Number 461. NASA. March 25, 1992. Retrieved 25 January 2009.
- ^ "Flurry of Small Breakups in First Half of 2014" (PDF). Orbital Debris Quarterly News. 18, Issue (3). NASA. July 2014. Retrieved 18 June 2018.
- v
- t
- e
- SNAP-10A
- Transit-4A
- Transit-4B
- Transit 5BN-1
- Transit 5BN-2
- Kosmos 198
- Kosmos 209
- Kosmos 367
- Kosmos 402
- Kosmos 469
- Kosmos 516
- Kosmos 626
- Kosmos 651
- Kosmos 654
- Kosmos 723
- Kosmos 724
- Kosmos 785
- Kosmos 860
- Kosmos 861
- Kosmos 954
- Kosmos 1176
- Kosmos 1249
- Kosmos 1266
- Kosmos 1299
- Kosmos 1365
- Kosmos 1372
- Kosmos 1402
- Kosmos 1607
- Kosmos 1670
- Kosmos 1677
- Kosmos 1682
- Kosmos 1736
- Kosmos 1771
- Kosmos 1818
- Kosmos 1860
- Kosmos 1867
- Kosmos 1900
- Kosmos 1932
- LES-8
- LES-9
- Kosmos 954
- Kosmos 1402
- Nimbus-B
- Nimbus 3
- Transit 5BN-3
- 1973 Launch failure