Sputnik 1
"Спутник-1" |
| Major contractors |
OKB-1, Soviet Ministry of Radiotechnical Industry |
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| Mission type |
Atmospheric studies |
|---|
| Satellite of |
Earth |
|---|
| Orbits |
1,440 |
|---|
| Launch date |
19:28:34, October 4, 1957 (UTC) (1957-10-04T19:28:34Z) (22:28:34 MSK) |
|---|
| Launch vehicle |
R-7 Rocket |
|---|
| Mission duration |
3 months |
|---|
| Orbital decay |
4 January 1958 |
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| COSPAR ID |
1957-001B |
|---|
| Home page |
NASA NSSDC Master Catalog |
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| 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 |
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| Periapsis |
6,586 km (4,092 mi) from centre, 215 km (134 mi) from surface |
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