lundi 5 octobre 2015

ROSCOSMOS: October 4, 1957 - The space age

ROSCOSMOS - Vostok-1 Mission patch.


October 4, 1957 launched the first artificial Earth satellite "Sputnik". This date is now belongs not only to Russia but also worldwide. It is from this date began the space age.

Sputnik 1, the first artificial satellite

Creation of the first spacecraft launched in the OKB-1 in November 1956, satellite was designed as a very simple device with two beacons for trajectory measurements.

Rocket R-7 number 8K71PS, which launched the first artificial satellite, was much easier than with regular missiles: massive warhead replaced by a transition at the satellite radio system equipment removed and one of the telemetry systems, simplified automatic engine shutdown. Mass missile has been reduced by 7 tons.

Sputnik launch, carried by a R-7 rocket

October 4, 1957 at 22 hours 28 minutes 34 seconds Moscow time (19 hours 28 minutes 34 seconds GMT) has been committed by the successful launch of R-7 rocket. After 295 seconds after the start of the first satellite and the central unit missiles were put into an elliptical orbit altitude at apogee 947 km, perigee 288 km. At 314.5 seconds after the start there was a separation of the satellite, and he gave his vote. "Beep! Beep! "- So sounded his call sign. On the training ground they were caught 2 minutes, then satellite "gone" beyond the horizon. On the first turn of his flight was made TASS: "... As a result, a large hard work of research institutes and design bureaus created the world's first artificial satellite of the Earth ..."

The Pravda announce the Sputnik successfully launched in orbit

Sputnik flew 92 days, until January 4, 1958 having made 1440 orbits around the Earth (flying about 60 million km.) And its transmitters working within two weeks after the launch.

ROSCOSMOS Press Release:

Images, Text, Credits: Press Service of the Russian Federal Space Agency (Roscosmos)/Wikimedia/ Aerospace.

Best regards,

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