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 Satellite Detail - OSCAR IV
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OSCAR IV
(OSCAR 4 )


Spacecraft Summary

OSCAR Designation:  OSCAR IV     Oscar Number:  OSCAR IV    
International Designator:  1965-108C     Norad Number:  1902    
Common Name:  OSCAR 4     Satellite Type:  Satellite    
Launch Date:  21 December, 1965     Launch Location:  Cape Canaveral    
Launch Vehicle:  Titan 3C     Decay Date:  12 April, 1976    
Apogee:  29120.00     Perigee:  168.00    
Inclination:  26.47     Period:  89.16    
Weight:  18.100 Kg    
Organization: TRW Radio Club/Project OSCAR


Frequency Information
 
Mode U/V (B) Linear Transponder (): Non-Operational
Uplink: 432.1450 - 432.1550 MHz SSB/CW
Downlink 144.3000 - 144.3100 MHz SSB/CW


Detailed Description

OSCAR IV was launched December 21, 1965 by a Titan 3C launcher from Cape Canaveral, Florida. OSCAR IV was launched piggyback with three United States Air Force satellites. The launch vehicle had a partial failure and placed the spacecraft in a low orbit preventing widespread amateur use. Orbit 29120 x 168 km. Inclination 26.8 degrees. Period 587.5 minutes. Weight 18.1 kg. Four monopole antennas.

OSCAR IV was built by the TRW Radio Club of Redondo Beach, California. It had a 3 Watt 10 kHz wide linear transponder (144 MHz uplink and 432 MHz downlink). In operation until March 16, 1966. Re-entry April 12, 1976. Total operation 85 days. OSCAR IV provided the first US-Soviet amateur link.


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