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OSCAR 7

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OSCAR 7 is classified as:


NORAD ID: 7530
Int'l Code: 1974-089B
Perigee: 1,447.2 km
Apogee: 1,465.7 km
Inclination: 101.7 °
Period: 114.9 minutes
Semi major axis: 7827 km
RCS: 0.7708 m2 (medium)
Launch date: November 15, 1974
Source: United States (US)
Launch site: AIR FORCE WESTERN TEST RANGE (AFWTR)
Uplink (MHz): 145.850-145.950
Downlink (MHz): 29.400- 29.500
Beacon (MHz): 29.502
Mode: A
Call sign:
Status: Active


This satellite was a small communications satellite designed by amateur radio operators. Attitude control was accomplished with a magnetic and damping rods. There were two beacon experiments (near 30 and 430 MHz), and two repeaters with code storage capability. The repeater receiver frequencies were near 146 and 432 MHz, and the transmitter frequencies near 30 and 146 MHz. The command system was manufactured in Australia and the second repeater in Germany.
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NASA's NSSDC Master Catalog

Two Line Element Set (TLE):
1 07530U 74089B   18017.19009561 -.00000049  00000-0 -26540-4 0  9997
2 07530 101.6652 346.9109 0011823 268.1729 162.4761 12.53630683975678
Source of the keplerian elements: Caltech