Key statistics
Satellite SL-12 R/B(2) at a glance.
Uptime
17895
Days in orbit
Revolutions
≈ 1.0
Per day
Orbit
GEO
Geostationary Orbit
Inclination
4.2
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: 1976-092F
Object number (NORAD): 17872
Object ID (CCSDS): 17872
Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 1435.867 minutes
Inclination: 4.1953 deg
SMA: 42160.233 km
Apoapsis: 35851.975 km
Periapsis: 35712.221 km
RAAN: 274.3649 deg
Eccentricy: 0.00165741
Argument of periapsis: 194.3493 deg
Mean anomaly: 295.0077 deg
Mean motion: 1.00287835 rev/day
Mean motion (dot): -0.00000285 rev/day2
B* drag term: 0.0 1/REarth
Two-line elements (TLE)
Creation date: Sept. 8, 2025, 3:16 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Sept. 7, 2025, 9:22 p.m. UTC
TLE line 0: 0 SL-12 R/B(2)
TLE line 1: 1 17872U 76092F 25250.89056368 -.00000285 00000-0 00000-0 0 9994
TLE line 2: 2 17872 4.1953 274.3649 0016574 194.3493 295.0077 1.00287835116091
Live tracking on map
Real-time ground track for satellite SL-12 R/B(2).
Associated space launch
Geostationary communications satellite for military and governmental puposes
SL-12 R/B(2) was lifted into orbit during the mission ‘Proton-K/DM | Raduga 2’, on board a Proton-K/DM space rocket.
The launch took place on Sept. 11, 1976, 6:24 p.m. from 81/24 (81P).
For more information about the launch, click the button.
Proton-K/DM | Raduga 2
Agency: N/A
Status: Launch Successful
Launch date: Sept. 11, 1976, 6:24 p.m. UTC
Rocket: Proton-K/DM
Launch pad: 81/24 (81P)
Location: Baikonur Cosmodrome, Republic of Kazakhstan
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