Cosmos-955 is the Soviet satellite of the Cosmos series. It was launched on September 20, 1977 at 04:01 Moscow time (01:01 UTC ) with the Vostok-2M rocket from the Plesetsk launch site . The satellite was designed for electronic intelligence. Descent from orbit on September 8, 2000.
| Cosmos-995 | |
|---|---|
| Tasks | radio intelligence |
| Satellite | Of the earth |
| Launch pad |  Plesetsk |
| Launch vehicle | Cyclone 2 |
| Launch | September 20, 1977 |
| NSSDC ID | 1977-091A |
| SCN | 10362 |
| Elements of the orbit | |
| Mood | 81.2 ° |
| Circulation period | 97.5 min |
| Apocenter | 664 km |
| Pericenter | 631 km |
Content
Orbital data
- Perigee - 631 km.
- Apogee - 664 km.
- The period of revolution around the Earth is 97.5 minutes.
- The angle of inclination of the orbital plane to the plane of the Earth's equator is 81.2 °.
Petrozavodsk phenomenon
In the early morning of September 20, 1977, in the north-west of Russia ( Karelia , Leningrad Oblast ) and Finland , a number of anomalous phenomena were observed, known as the Petrozavodsk Phenomenon . This phenomenon by foreign researchers was immediately associated with the launch of the Cosmos-955 satellite [1] [2] . The booster, flying to the northeast, left a characteristic multi-beam trace of combustion products in the upper atmosphere, lit from the horizon by the rising sun; in Petrozavodsk and other places southwest of Plesetsk this trace was observed as a kind of luminous “jellyfish” against the background of the dark sky in the northeast [2] . In the Soviet open press, the Petrozavodsk Phenomenon was explained not by the launch of the satellite, but by the fall of the meteorite [3] , since at that time the existence of the Plesetsk cosmodrome was not officially recognized by the Soviet authorities [2] .
See also
- Cosmos (spacecraft)
Notes
- ↑ Astronet> Petrozavodsk phenomenon
- ↑ 1 2 3 Soviet UFO due to secret launch (Eng.) // Science News . - October 8, 1977. - Vol. 112 , iss. 15 . - P. 230—231 . - DOI : 10.2307 / 3962476 .
- ↑ Unidentified natural phenomenon // Truth . - September 23, 1977.