Key statistics
Satellite SL-12 R/B(2) at a glance.
Uptime
18665
Days in orbit
Revolutions
≈ 1.0
Per day
Orbit
GEO
Geostationary Orbit
Inclination
2.1
Latest
Satellite identification and parameters
Extended collection of information and parameters for SL-12 R/B(2).
Object identification
Identified? True
Debris? False
Object name: SL-12 R/B(2)
International designator: 1974-060F
Object number (NORAD): 20836
Object ID (CCSDS): 20836
Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 1434.855 minutes
Inclination: 2.0865 deg
SMA: 42140.429 km
Apoapsis: 35830.479 km
Periapsis: 35694.109 km
RAAN: 259.6002 deg
Eccentricy: 0.00161805
Argument of periapsis: 220.041 deg
Mean anomaly: 342.9398 deg
Mean motion: 1.00358541 rev/day
Mean motion (dot): 0.00000064 rev/day2
B* drag term: 0.0 1/REarth
Two-line elements (TLE)
Creation date: Sept. 3, 2025, 10:15 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Sept. 3, 2025, 4:15 a.m. UTC
TLE line 0: 0 SL-12 R/B(2)
TLE line 1: 1 20836U 74060F 25246.17756734 .00000064 00000-0 00000-0 0 9995
TLE line 2: 2 20836 2.0865 259.6002 0016180 220.0410 342.9398 1.00358541 43126
Live tracking on map
Real-time ground track for satellite SL-12 R/B(2).
Associated space launch
First operational geostationary communications satellite of the Soviet Union
SL-12 R/B(2) was lifted into orbit during the mission ‘Proton-K/DM | Molniya-1S’, on board a Proton-K/DM space rocket.
The launch took place on July 29, 1974, noon from 81/24 (81P).
For more information about the launch, click the button.
Proton-K/DM | Molniya-1S
Agency: N/A
Status: Launch Successful
Launch date: July 29, 1974, noon UTC
Rocket: Proton-K/DM
Launch pad: 81/24 (81P)
Location: Baikonur Cosmodrome, Republic of Kazakhstan
...
Latest news about this satellite
There are no fresh news available about this satellite. Check back as we update our databases every day.
Newsletter sign-up
Weekly statistics, charts and insights to help you stay on top of the space industry.
