Post by Deleted on Oct 4, 2020 11:00:04 GMT
The Soviet Union launched it into an elliptical low Earth orbit on 4 October 1957.
It orbited for three weeks before its batteries died and then orbited silently for two months before it fell back into the atmosphere
It was 58 cm (23 in) in diameter and a polished metal sphere
four external radio antennas to broadcast radio pulses.
Its radio signal was easily detectable by radio amateurs, and duration of its orbit made its flight path cover virtually the entire inhabited Earth.
The satellite's unanticipated success triggered the Space Race
The signals continued for 21 days until the transmitter batteries ran out on 26 October 1957.
Sputnik burned up on 4 January 1958 while re-entering Earth's atmosphere, after three months, 1440 completed orbits of the Earth
and a distance travelled of about 43 million miles
It orbited for three weeks before its batteries died and then orbited silently for two months before it fell back into the atmosphere
It was 58 cm (23 in) in diameter and a polished metal sphere
four external radio antennas to broadcast radio pulses.
Its radio signal was easily detectable by radio amateurs, and duration of its orbit made its flight path cover virtually the entire inhabited Earth.
The satellite's unanticipated success triggered the Space Race
The signals continued for 21 days until the transmitter batteries ran out on 26 October 1957.
Sputnik burned up on 4 January 1958 while re-entering Earth's atmosphere, after three months, 1440 completed orbits of the Earth
and a distance travelled of about 43 million miles
