Kosmos 47Spacecraft:3KV-2 Launch Vehicle: Voskhod 11A57 Launched: 6 Oct 1964 |
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Description: 1st Vostok 3KV SL-4 unmanned orbital |
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| Duration: 1.01 days
Decay Date: 1964-10-07 USAF Sat Cat: 891 COSPAR: 1964-062A Apogee: 383 km (237 mi) Perigee: 174 km (108 mi) Inclination: 64.6000 deg Period: 90.10 min Unmanned test of the Vostok 3KV 4 spacecraft and R-7 carrier rocket with an improved upper stage. The spacecraft made a good landing, with the parachute-rocket soft landing system working perfectly; the spacecraft had zero velocity on impact with the ground. The strong winds caught the parachute after landing and dragged it 160 m, but if a crew had been aboard they could have quickly commanded separation of the parachute. All systems of the booster and spacecraft worked perfectly, except that the third stage engines' thrust fell by 10% for three seconds, but the engine controller detected the shortfall and made up the velocity with a longer burn time. References:
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