| Kosmos 64 | |
| Names List: | Zenit 2-26 |
| Mission Type: | Optical imaging reconnaissance |
| Operator: | OKB-1 |
| Cospar Id: | 1965-025A |
| Satcat: | 1305 |
| Mission Duration: | 8 days |
| Spacecraft Type: | Zenit-2 |
| Manufacturer: | OKB-1 |
| Launch Mass: | 4720 kg[1] |
| Launch Date: | 25 March 1965, 10:04:00 GMT[2] |
| Launch Rocket: | Vostok-2 |
| Launch Site: | Baikonur 31/6 |
| Launch Contractor: | OKB-1 |
| Disposal Type: | Recovered |
| Landing Date: | 2 April 1965 |
| Orbit Epoch: | 25 March 1965 |
| Orbit Reference: | Geocentric[3] |
| Orbit Regime: | Low Earth |
| Orbit Periapsis: | 201 km |
| Orbit Apoapsis: | 267 km |
| Orbit Inclination: | 65.0° |
| Orbit Period: | 89.2 minutes |
| Apsis: | gee |
| Programme: | Zenit programme Zenit-2 |
| Previous Mission: | Zenit 2-25 |
| Next Mission: | Zenit 2-27 |
| Programme2: | Kosmos (satellites) |
| Previous Mission2: | Kosmos 63 |
| Next Mission2: | Kosmos 65 |
Kosmos 64 (Russian: Космос 64 meaning Cosmos 64) or Zenit-2 No.26 was a Soviet, first generation, low resolution, optical film-return reconnaissance satellite launched in 1965. A Zenit-2 satellite, Kosmos 64 was the twenty-sixth of eighty-one such spacecraft to be launched[4] [5] and had a mass of 4720kg (10,410lb).
Kosmos 64 was launched by a Vostok-2 rocket, serial number G15001-06,[6] flying from Site 31/6 at the Baikonur Cosmodrome. The launch took place at 10:04 GMT on 25 March 1965, and following its successful arrival in orbit the spacecraft received its Kosmos designation; along with the International Designator 1965-025A and the Satellite Catalog Number 01305.[7]
Kosmos 64 was operated in a low Earth orbit, on 25 March 1965 it had a perigee of 201km (125miles), an apogee of 267km (166miles), an inclination of 65.0° and an orbital period of 89.2 minutes. On 2 April 1965, after eight days in orbit, Kosmos 64 was deorbited with its return capsule descending by parachute for recovery by Soviet forces.[5]