Sputnik 1

Sputnik 1
	Replica of Sputnik 1
Names	Спутник-1
Mission type	Technology demonstration
Operator	OKB-1
Harvard designation	1957 Alpha 2
COSPAR ID	1957-001B
SATCAT no.	00002
Mission duration	21 days
Orbits completed	1440
Spacecraft properties
Manufacturer	OKB-1 ; Ministry of Radiotechnical Industry
Launch mass	83.6 kg (184 lb)
Dimensions	58 cm (23 in) diameter
Power	1 watt
Start of mission
Launch date	4 October 1957, 19:28:34 UTC
Rocket	Sputnik 8K71PS
Launch site	Baikonur 1/5
End of mission
Disposal	Orbital decay
Last contact	26 October 1957
Decay date	4 January 1958
Orbital parameters
Reference system	Geocentric
Regime	Low Earth
Semi-major axis	6,955 km (4,322 mi)
Eccentricity	0.05201
Perigee	215 km (134 mi)
Apogee	939 km (583 mi)
Inclination	65.1°
Period	96.2 minutes
Epoch	4 October 1957, 15:12 UTC
Instruments
	Radio transmitter ; (20.005 MHz - 40.002 MHz)
	Sputnik program ← None Sputnik 2 →

Sputnik 1 was the first artificial satellite to go around the Earth . ^[2] It was made by the Soviet Union . ^[2] It was launched on 4 October 1957 at Baikonur Cosmodrome . ^[2] It orbited (went around) the Earth for three months. ^[2] It carried a radio transmitter. It did 1,440 orbits of the Earth during this time. It went down into Earth's atmosphere on 4 January 1958 and burned up. ^[2]

The United States was very surprised when the Soviet Union sent Sputnik 1 into space . It did not want to fall behind. So, it began spending more money on science and education . ^[3] This was when the Space Race between the Soviet Union and the United States began. The competition helped the US and Russia fuel the United States’ space exploration endeavors

Etymology [ change | change source ]

The word Sputnik comes from the Russian Спутник, literally traveling companion . It is pronounced IPA: ['sput.nik] or IPA: ['sput.nık] , not 'sp?t.nık . ^[2]^[4]

Related pages [ change | change source ]

References [ change | change source ]

↑ ^1.0 ^1.1 ^1.2 Wade, Mark. "Sputnik 1" . Encyclopedia Astronautica. Archived from the original on 27 December 2016 . Retrieved 8 January 2017 .
↑ ^2.0 ^2.1 ^2.2 ^2.3 ^2.4 ^2.5 "Sputnik 1" . NASA NSSDC. Archived from the original on 2011-10-19 . Retrieved 2011-12-24 .
↑ Calmes, Jackie (2010-12-06). "Obama Calls for New 'Sputnik Moment' " . The New York Times . Retrieved 2011-12-24 .
↑ Siddiqi, Asif A. (2003). Sputnik and the Soviet Space Challenge . Universityy of Florida Press. p. 155. ISBN 0-8130-2627-X .

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[astronautix-1] 1.0 ^1.1 ^1.2 Wade, Mark. "Sputnik 1" . Encyclopedia Astronautica. Archived from the original on 27 December 2016 . Retrieved 8 January 2017 .

[nasa1-2] 2.0 ^2.1 ^2.2 ^2.3 ^2.4 ^2.5 "Sputnik 1" . NASA NSSDC. Archived from the original on 2011-10-19 . Retrieved 2011-12-24 .

[3] Calmes, Jackie (2010-12-06). "Obama Calls for New 'Sputnik Moment' " . The New York Times . Retrieved 2011-12-24 .

[4] Siddiqi, Asif A. (2003). Sputnik and the Soviet Space Challenge . Universityy of Florida Press. p. 155. ISBN 0-8130-2627-X .

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