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OSCAR 2

From Wikipedia, the free encyclopedia
Amateur radio satellite
OSCAR 2
OSCAR 2
Mission typeCommunications
OperatorProject OSCAR / DoD
Harvard designation1962 Chi 1
COSPAR ID1962-022BEdit this at Wikidata
SATCATno.305
Mission duration22 days
Spacecraft properties
Launch mass10.0 kilograms (22.0 lb)
Dimensions15.2 by 25.4 by 33 centimeters (6.0 in × 10.0 in × 13.0 in)
Start of mission
Launch date2 June 1962, 00:43 UTC
RocketThor DM-21 Agena-B
Launch siteVandenbergLC-75-3-4
End of mission
Decay date21 June 1962 (1962-06-21)
Orbital parameters
Reference systemGeocentric
RegimeLow Earth
Eccentricity0.01399
Perigee altitude207 kilometers (129 mi)
Apogee altitude394 kilometers (245 mi)
Inclination101.00 degrees
Period90.5 minutes
← OSCAR 1
OSCAR 3 →

OSCAR 2 is the secondamateur radio satellite launched by Project OSCAR intoLow Earth orbit. OSCAR 2 was launched June 2, 1962, by aThor-DM21 Agena B launcher from Vandenberg Air Force Base, Lompoc, California. The satellite, a rectangular box (30 cm × 25 cm × 12 cm (11.8 in × 9.8 in × 4.7 in)) weighing 10 kg (22 lb), was launched as a secondary payload (ballast) forCorona 43, the fifth launch of a KH-4 satellite.

The satellite employed a monopole transmitting antenna 60 cm (24 in) long extended from the center of the convex surface, but had no attitude control system. OSCAR 2 lasted 18 days, ceasing operation on June 20, 1962, and re-entered June 21, 1962.[1][2]

OSCAR 2 incorporated certain design changes from the earlierOSCAR 1.[2]

The continuous radio Morse message "hi hi hi ..." by the first private satellites called OSCAR, beginning withOSCAR 1 in 1961 (recording from OSCAR 2, 1962)

See also

[edit]

References

[edit]
  1. ^"Oscar 2". NASA National Space Science Data Center. 30 June 1977. Retrieved14 February 2013.
  2. ^ab"OSCAR 2". Gunter's Space Page. 31 December 1999. Retrieved14 February 2013.

Public Domain This article incorporatespublic domain material from websites or documents of theNational Aeronautics and Space Administration.

Payloads are separated by bullets ( · ), launches by pipes ( | ). Crewed flights are indicated inunderline. Uncatalogued launch failures are listed initalics. Payloads deployed from other spacecraft are denoted in (brackets).
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