Engineering:Kosmos 725
| Mission type | ABM radar target |
|---|---|
| COSPAR ID | 1975-026A |
| Spacecraft properties | |
| Spacecraft type | DS-P1-Yu |
| Manufacturer | Yuzhnoye |
| Launch mass | 400 kilograms (880 lb) |
| Start of mission | |
| Launch date | 8 April 1975, 18:29:56 UTC |
| Rocket | Kosmos-2I 63SM |
| Launch site | Plesetsk 133/1 |
| End of mission | |
| Decay date | 6 January 1976 |
| Orbital parameters | |
| Reference system | Geocentric |
| Regime | Low Earth |
| Perigee altitude | 267 kilometres (166 mi) |
| Apogee altitude | 466 kilometres (290 mi) |
| Inclination | 70.9 degrees |
| Period | 91.9 minutes |
Kosmos 725 (Russian: Космос 725 meaning Cosmos 725), also known as DS-P1-Yu No.77, was a Soviet satellite which was launched in 1975 as part of the Dnepropetrovsk Sputnik programme. It was a 400-kilogram (880 lb) spacecraft, which was built by the Yuzhnoye Design Bureau, and was used as a radar calibration target for anti-ballistic missile tests.[1]
A Kosmos-2I 63SM carrier rocket was used to launch Kosmos 725 from Site 133/1 of the Plesetsk Cosmodrome.[2] The launch occurred at 18:29:56 UTC on 8 April 1975, and resulted in the successfully insertion of the satellite into low Earth orbit.[3] Upon reaching orbit, the satellite was assigned its Kosmos designation, and received the International Designator 1975-026A.[4] The North American Aerospace Defense Command assigned it the catalogue number 07730.
Kosmos 725 was the seventy-sixth of seventy nine DS-P1-Yu satellites to be launched,[1] and the sixty-ninth of seventy two to successfully reach orbit.[5] It was operated in an orbit with a perigee of 267 kilometres (166 mi), an apogee of 466 kilometres (290 mi), 70.9 degrees of inclination, and an orbital period of 91.9 minutes.[6] It remained in orbit until it decayed and reentered the atmosphere on 6 January 1976.[6]
See also
- 1975 in spaceflight
References
- ↑ 1.0 1.1 Wade, Mark. "DS-P1-Yu". Encyclopedia Astronautica. http://www.astronautix.com/craft/dsp1yu.htm.
- ↑ McDowell, Jonathan. "Launch Log". Jonathan's Space Page. http://planet4589.org/space/log/launchlog.txt.
- ↑ Wade, Mark. "Kosmos 2". Encyclopedia Astronautica. http://www.astronautix.com/lvs/kosmos2.htm.
- ↑ "Cosmos 725". NSSDC Master Catalog. US National Space Science Data Center. https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1975-026A.
- ↑ Krebs, Gunter. "DS-P1-Yu (11F618)". Gunter's Space Page. http://space.skyrocket.de/doc_sdat/ds-p1-yu.htm.
- ↑ 6.0 6.1 McDowell, Jonathan. "Satellite Catalog". Jonathan's Space Page. http://www.planet4589.org/space/log/satcat.txt.
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