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OSCAR 7

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OSCAR 7 is classified as:


NORAD ID: 7530
Int'l Code: 1974-089B
Perigee: 1,446.8 km
Apogee: 1,465.8 km
Inclination: 102.0 °
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


Uplink (MHz): 432.125-432.175
Downlink (MHz): 145.975-145.925
Beacon (MHz): 145.970
Mode: B C
Call sign:
Status: Active


Uplink (MHz):
Downlink (MHz): 2304.100
Beacon (MHz): 435.100
Mode: D(RTTY)
Call sign:
Status: Inactive


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   24117.52957455 -.00000042  00000-0  29466-4 0  9998
2 07530 101.9779 111.6957 0012130 181.2469 294.5321 12.53674624262566
Source of the keplerian elements: Caltech