Key statistics
Satellite SL-12 R/B(AUX MOTOR) at a glance.
Uptime
13969
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: 359.943 minutes
Inclination: 64.4047 deg
SMA: 16761.632 km
Apoapsis: 20039.311 km
Periapsis: 727.683 km
RAAN: 103.0819 deg
Eccentricy: 0.57606647
Argument of periapsis: 187.6903 deg
Mean anomaly: 156.9882 deg
Mean motion: 4.00062931 rev/day
Mean motion (dot): 0.00000226 rev/day2
B* drag term: 0.0033003617 1/REarth
Two-line elements (TLE)
Creation date: Dec. 14, 2025, 3:07 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Dec. 13, 2025, 10:45 a.m. UTC
TLE line 0: 0 SL-12 R/B(AUX MOTOR)
TLE line 1: 1 18375U 87079H 25347.44832703 .00000226 00000-0 33004-2 0 9999
TLE line 2: 2 18375 64.4047 103.0819 5760665 187.6903 156.9882 4.00062931573214
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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