Key statistics
Satellite RADIO 8 at a glance.
Uptime
15974
Days in orbit
Revolutions
≈ 12.0
Per day
Orbit
LEO
Low Earth Orbit
Inclination
83.0
Latest
Satellite identification and parameters
Extended collection of information and parameters for RADIO 8.
Object identification
Identified? True
Debris? False
Object name: RADIO 8
International designator: 1981-120B
Object number (NORAD): 12998
Object ID (CCSDS): 12998
Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)
Current information (Y/N): Y
RCS size: MEDIUM
Orbital parameters
Period: 119.682 minutes
Inclination: 82.9531 deg
SMA: 8044.732 km
Apoapsis: 1681.6 km
Periapsis: 1651.595 km
RAAN: 272.1616 deg
Eccentricy: 0.00186485
Argument of periapsis: 338.4891 deg
Mean anomaly: 194.8824 deg
Mean motion: 12.03193176 rev/day
Mean motion (dot): 0.00000009 rev/day2
B* drag term: 0.000002353845 1/REarth
Two-line elements (TLE)
Creation date: Sept. 11, 2025, 3:57 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Sept. 10, 2025, 7:40 p.m. UTC
TLE line 0: 0 RADIO 8
TLE line 1: 1 12998U 81120B 25253.81949662 .00000009 00000-0 23538-5 0 9998
TLE line 2: 2 12998 82.9531 272.1616 0018649 338.4891 194.8824 12.03193176920569
Live tracking on map
Real-time ground track for satellite RADIO 8.
Associated space launch
6 Soviet amateur radio satellites
RADIO 8 was lifted into orbit during the mission ‘Kosmos-3M | Radio Sputnik 3 to 8’, on board a Kosmos-3M space rocket.
The launch took place on Dec. 17, 1981, 11 a.m. from 132/2.
For more information about the launch, click the button.
Kosmos-3M | Radio Sputnik 3 to 8
Agency: N/A
Status: Launch Successful
Launch date: Dec. 17, 1981, 11 a.m. UTC
Rocket: Kosmos-3M
Launch pad: 132/2
Location: Plesetsk Cosmodrome, Russian Federation
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