SPUTNIK 1
From The Space Library
 | |
| Major contractors | OKB-1, Soviet Ministry of Radiotechnical Industry |
|---|---|
| Mission type | Atmospheric studies |
| Satellite of | Earth |
| Orbits | 1,440 |
| Launch date | 19:28:34, October 4, 1957 (UTC) (22:28:34 MSK) |
| Launch vehicle | R-7 Rocket |
| Mission duration | 3 months |
| Orbital decay | 4 January 1958 |
| COSPAR ID | 1957-001B |
| Home page | NASA NSSDC Master Catalog |
| Mass | 83.6 kg (184.3 lb) |
| Semimajor axis | 6,955.2 km (4,321.8 mi) |
| Eccentricity | 0.05201 |
| Inclination | 65.1° |
| Orbital period | 96.2 minutes |
| Apoapsis | 7,310 km (4,540 mi) from centre, 939 km (583 mi) from surface |
| Periapsis | 6,586 km (4,092 mi) from centre, 215 km (134 mi) from surface |
