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OSCAR 7

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OSCAR 7 is classified as:


NORAD ID: 7530
Int'l Code: 1974-089B
Perigee: 1,447.0 km
Apogee: 1,465.9 km
Inclination: 101.8 °
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  7530U 74089B   20191.43592560 -.00000034 +00000-0 +69452-4 0  9998
2  7530 101.8008 161.0552 0012038 323.8755 148.8707 12.53644097088745
Source of the keplerian elements: Caltech