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Launch Date: 12 December 1961, Vandenberg AFB, California.
Orbit type: Elliptical, 81 degree inclination, 245/431 km.
Weight: 4.5 kg
Stabilization: none.
Beacon: 145 MHz CW, 100 mW.
Telemetry: 1 channel (morse code speed varied with temperature).
Antenna: 1/4 wavelength monopole.
Power: Mercury battery.
Notes: Launched with Discoverer XXXVI. Orbital lifetime 22 days.

"Oscar I: A Summary of the World's First Radio Amateur Satellite", William I. Orr, W6SAI, QST, September 1962, p. 54.
"The Satellite Experimenter's Handbook", 1st edition, Martin Davidoff, K2UBC, American Radio Relay League, Newington, CT, 1985.
"OSCAR at 25: The Amateur Space Program Comes of Age", Jan King, W3GEY, et al., QST, December 1986, p. 15.

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