Key statistics
Satellite SL-12 R/B(AUX MOTOR) at a glance.
Uptime
13922
Days in orbit
Revolutions
≈ 4.0
Per day
Orbit
HEO
HEO
Inclination
64.4
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: 1987-079H
Object number (NORAD): 18375
Object ID (CCSDS): 18375
Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)
Current information (Y/N): Y
RCS size: MEDIUM
Orbital parameters
Period: 359.93 minutes
Inclination: 64.4015 deg
SMA: 16761.205 km
Apoapsis: 20054.838 km
Periapsis: 711.302 km
RAAN: 119.101 deg
Eccentricy: 0.577033
Argument of periapsis: 188.8035 deg
Mean anomaly: 153.6327 deg
Mean motion: 4.00078224 rev/day
Mean motion (dot): -0.00000059 rev/day2
B* drag term: -0.00078182305 1/REarth
Two-line elements (TLE)
Creation date: Oct. 26, 2025, 2:54 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Oct. 25, 2025, 4:55 p.m. UTC
TLE line 0: 0 SL-12 R/B(AUX MOTOR)
TLE line 1: 1 18375U 87079H 25298.70489774 -.00000059 00000-0 -78182-3 0 9992
TLE line 2: 2 18375 64.4015 119.1010 5770330 188.8035 153.6327 4.00078224571262
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 20 to 22’, on board a Proton space rocket.
The launch took place on Sept. 16, 1987, 2:53 a.m. from 200/40.
For more information about the launch, click the button.
Proton | Uragan 20 to 22
Agency: N/A
Status: Launch Successful
Launch date: Sept. 16, 1987, 2:53 a.m. UTC
Rocket: Proton
Launch pad: 200/40
Location: Baikonur Cosmodrome, Republic of Kazakhstan
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