Key statistics
Satellite SL-12 R/B(AUX MOTOR) at a glance.
Uptime
7199
Days in orbit
Revolutions
≈ 4.2
Per day
Orbit
HEO
HEO
Inclination
65.0
Latest
Satellite identification and parameters
Extended collection of information and parameters for SL-12 R/B(AUX MOTOR).
Object identification
Identified? True
Debris? False
Object name: SL-12 R/B(AUX MOTOR)
International designator: 2005-050F
Object number (NORAD): 28920
Object ID (CCSDS): 28920
Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)
Current information (Y/N): Y
RCS size: MEDIUM
Orbital parameters
Period: 342.559 minutes
Inclination: 64.9978 deg
SMA: 16217.489 km
Apoapsis: 19358.368 km
Periapsis: 320.34 km
RAAN: 169.5271 deg
Eccentricy: 0.58695977
Argument of periapsis: 179.2746 deg
Mean anomaly: 182.4323 deg
Mean motion: 4.2036576 rev/day
Mean motion (dot): 0.00002388 rev/day2
B* drag term: 0.00086696548 1/REarth
Two-line elements (TLE)
Creation date: Sept. 9, 2025, 10:35 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Sept. 9, 2025, 2:09 a.m. UTC
TLE line 0: 0 SL-12 R/B(AUX MOTOR)
TLE line 1: 1 28920U 05050F 25252.08960393 .00002388 00000-0 86697-3 0 9995
TLE line 2: 2 28920 64.9978 169.5271 5869598 179.2746 182.4323 4.20365760303397
Live tracking on map
Real-time ground track for satellite SL-12 R/B(AUX MOTOR).
Associated space launch
GLONASS navigation satellites
SL-12 R/B(AUX MOTOR) was lifted into orbit during the mission ‘Proton | Uragan 87, Uragan-M 4 & 5’, on board a Proton space rocket.
The launch took place on Dec. 25, 2005, 5:07 a.m. from 81/24 (81P).
For more information about the launch, click the button.

Proton | Uragan 87, Uragan-M 4 & 5
Agency: N/A
Status: Launch Successful
Launch date: Dec. 25, 2005, 5:07 a.m. UTC
Rocket: Proton
Launch pad: 81/24 (81P)
Location: Baikonur Cosmodrome, Republic of Kazakhstan
...
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