|Harvard designation||1962 Upsilon 1|
|Launch mass||280 kilograms (620 lb)|
|Start of mission|
|Launch date||28 May 1962, 03:00UTC|
|Launch site||Kapustin Yar Mayak-2|
|End of mission|
|Decay date||2 May 1963|
|Perigee altitude||192 kilometres (119 mi)|
|Apogee altitude||1,578 kilometres (981 mi)|
|Epoch||27 March 1962, 23:07:00 UTC|
Kosmos 5 (Russian: Космос 5 meaning Cosmos 5), also known as 2MS #2 and occasionally in the West as Sputnik 15 was a scientific research and technology demonstration satellite launched by the Soviet Union in 1962. It was the fifth satellite to be designated under the Kosmos system, and the third spacecraft to be launched as part of the MS programme, after Kosmos 2 and Kosmos 3. Its primary missions were to develop systems for future satellites, and to record data about artificial radiation around the Earth.
It was launched aboard Kosmos-2I 63S1 s/n 3LK. It was the sixth flight of the Kosmos-2I, and the fourth to successfully reach orbit. The launch was conducted from pad 2 of the Mayak Launch Complex at Kapustin Yar, and occurred at 03:00 GMT on 28 May 1962.
Kosmos 5 was placed into a low Earth orbit with a perigee of 192 kilometres (119 mi), an apogee of 1,578 kilometres (981 mi), 49.1 degrees of inclination, and an orbital period of 102.6 minutes. It decayed on 2 May 1963, after nearly a year in orbit.
Kosmos 5 was a 2MS satellite, the second of two to be launched, following the first which was launched as Kosmos 3 on 24 April. The 2MS was the second of two types of MS satellite to be launched, following the first 1MS spacecraft which had been launched as Kosmos 2. Kosmos 5 was the penultimate MS satellite to be launched, and the last to successfully reach orbit. The last launch attempt, of a 1MS satellite, occurred in October, and failed to reach orbit.
- "NASA - NSSDCA - Spacecraft - Trajectory Details". nssdc.gsfc.nasa.gov. Retrieved 2018-05-02.
- Wade, Mark. "2MS". Encyclopedia Astronautica. Archived from the original on 2008-10-07. Retrieved 2009-05-23.
- McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved 2009-05-23.
- Wade, Mark. "Kosmos 2". Encyclopedia Astronautica. Archived from the original on 2012-07-08. Retrieved 2009-05-23.
- McDowell, Jonathan. "Satellite Catalog". Jonathan's Space Page. Retrieved 2009-05-23.
- Wade, Mark. "MS". Encyclopedia Astronautica. Retrieved 2009-05-23.
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