Key statistics
Satellite RADIO 5 at a glance.
Uptime
15974
Days in orbit
Revolutions
≈ 12.1
Per day
Orbit
LEO
Low Earth Orbit
Inclination
83.0
Latest
Satellite identification and parameters
Extended collection of information and parameters for RADIO 5.
Object identification
Identified? True
Debris? False
Object name: RADIO 5
International designator: 1981-120C
Object number (NORAD): 12999
Object ID (CCSDS): 12999
Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)
Current information (Y/N): Y
RCS size: MEDIUM
Orbital parameters
Period: 119.473 minutes
Inclination: 82.953 deg
SMA: 8035.404 km
Apoapsis: 1668.932 km
Periapsis: 1645.606 km
RAAN: 237.3169 deg
Eccentricy: 0.00145145
Argument of periapsis: 164.0329 deg
Mean anomaly: 312.0046 deg
Mean motion: 12.05289072 rev/day
Mean motion (dot): 0.00000056 rev/day2
B* drag term: 0.00054306431 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, 6:09 p.m. UTC
TLE line 0: 0 RADIO 5
TLE line 1: 1 12999U 81120C 25253.75687598 .00000056 00000-0 54306-3 0 9996
TLE line 2: 2 12999 82.9530 237.3169 0014515 164.0329 312.0046 12.05289072923917
Live tracking on map
Real-time ground track for satellite RADIO 5.
In-orbit conjunctions
There are no conjunctions computed for RADIO 5, at the moment. Check back to stay up to date, as we update our databases every day.
Go to all conjunctionsAssociated space launch
6 Soviet amateur radio satellites
RADIO 5 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
...
Latest news about this satellite
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