|Mission type||Optical imaging|
|Mission duration||8 days|
|Launch mass||4,730.0 kilograms (10,427.9 lb)|
|Start of mission|
|Launch date||7 January 1966, 08:24UTC|
|Launch site||Baikonur 31/6|
|End of mission|
|Landing date||15 January 1966, 06:00UTC|
|Perigee||193 kilometres (120 mi)|
|Apogee||380 kilometres (240 mi)|
|Epoch||8 January 1966|
Kosmos 104 (Russian: Космос 104 meaning Cosmos 104) or Zenit-2 No.36 was a Soviet optical film-return reconnaissance satellite launched in 1966. A Zenit-2 spacecraft, Kosmos 104 was the thirty-second of eighty-one such satellites to be launched and had a mass of 4,730.0 kilograms (10,427.9 lb).
Kosmos 104 was launched by a Vostok-2 rocket flying from Site 31/6 at the Baikonur Cosmodrome. The launch took place at 08:24 UTC on 7 January 1966; however, the carrier rocket malfunctioned, placing the spacecraft into the wrong orbit. The spacecraft received a Kosmos designation, along with the International Designator 1966-001A and the Satellite Catalog Number 1903.
Despite the problem during its launch, Kosmos 104 was able to complete most of its imaging mission. Its orbit, at an epoch of 8 January 1966, had a perigee of 193 kilometres (120 mi), an apogee of 380 kilometres (240 mi) inclination of 65 degrees and a period of 90.24 minutes. On 15 January 1966, after eight days in orbit, the satellite was deorbited with its return capsule descending by parachute for a successful recovery.
- "Cosmos 104". National Space Science Data Center. Retrieved 2 January 2014.
- McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved 2 January 2014.
- McDowell, Jonathan. "Satellite Catalog". Jonathan's Space Page. Retrieved 2 January 2014.
- Krebs, Gunter. "Zenit-2 (11F61)". Gunter's Space Page. Retrieved 2 January 2014.
- Wade, Mark. "Zenit-2". Encyclopedia Astronautica. Retrieved 2 January 2014.
- Wade, Mark. "Vostok 8A92". Encyclopedia Astronautica. Retrieved 2 January 2014.
|This article about one or more spacecraft of the Soviet Union is a stub. You can help Wikipedia by expanding it.|