Key statistics
Satellite SL-12 R/B(2) at a glance.
Uptime
14751
Days in orbit
Revolutions
≈ 14.2
Per day
Orbit
LEO
Low Earth Orbit
Inclination
71.1
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: 1985-042D
Object number (NORAD): 15772
Object ID (CCSDS): 15772
Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 101.271 minutes
Inclination: 71.1102 deg
SMA: 7196.982 km
Apoapsis: 844.69 km
Periapsis: 793.004 km
RAAN: 29.6603 deg
Eccentricy: 0.00359083
Argument of periapsis: 344.5357 deg
Mean anomaly: 182.8762 deg
Mean motion: 14.21926361 rev/day
Mean motion (dot): 0.00000203 rev/day2
B* drag term: 0.00011286369 1/REarth
Two-line elements (TLE)
Creation date: Oct. 18, 2025, 2:17 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Oct. 17, 2025, 6:28 p.m. UTC
TLE line 0: 0 SL-12 R/B(2)
TLE line 1: 1 15772U 85042D 25290.76976373 .00000203 00000-0 11286-3 0 9993
TLE line 2: 2 15772 71.1102 29.6603 0035908 344.5357 182.8762 14.21926361 94077
Live tracking on map
Real-time ground track for satellite SL-12 R/B(2).
In-orbit conjunctions
A list of the most updated potential collisions computed for object SL-12 R/B(2).
Associated space launch
Second generation ELING satellite
SL-12 R/B(2) was lifted into orbit during the mission ‘Proton | Tselina-2 2’, on board a Proton space rocket.
The launch took place on May 30, 1985, 2:59 p.m. from 200/40.
For more information about the launch, click the button.
Proton | Tselina-2 2
Agency: N/A
Status: Launch Successful
Launch date: May 30, 1985, 2:59 p.m. UTC
Rocket: Proton
Launch pad: 200/40
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.
