OSCAR-IV
Launch Date: 21 December 1965, Cape Kennedy, FL.
Orbit type: Elliptical, inclination 26 degrees, altitude 160 km/ 34000
km.
Weight:
Stabilization: Spin generated by a spring on separation from
launchvehicle.
Payloads: Transponder. Beacon (432 MHz).
Transponders: 144 MHz uplink, 432 MHz downlink, 3W, 10kHz BW.
Telemetry: none.
Antennas: Sleeve dipole (432), monopole (144) (Estimated from
photos).
Power: 10 W solar cells, battery.
Notes: Intended for high-altitude (18,000 miles) circular orbit. Launch
vehicle failure left it in an elliptical orbit with perigee 100 miles. Built by
TRW Radio Club.
References:
"The World Above 50 Mc", Sam Harris, W1FZJ,
QST, February 1966, p. 81.
"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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