Key statistics
Satellite SL-12 R/B(2) at a glance.
Uptime
14110
Days in orbit
Revolutions
≈ 1.0
Per day
Orbit
OTHER
Other
Inclination
11.5
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: 1987-028D
Object number (NORAD): 17705
Object ID (CCSDS): 17705
Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 1441.838 minutes
Inclination: 11.5019 deg
SMA: 42277.033 km
Apoapsis: 36003.039 km
Periapsis: 35794.757 km
RAAN: 322.4319 deg
Eccentricy: 0.0024633
Argument of periapsis: 113.4733 deg
Mean anomaly: 77.0471 deg
Mean motion: 0.99872521 rev/day
Mean motion (dot): 0.00000108 rev/day2
B* drag term: 0.0 1/REarth
Two-line elements (TLE)
Creation date: Nov. 3, 2025, 11:16 p.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Nov. 3, 2025, 5:18 p.m. UTC
TLE line 0: 0 SL-12 R/B(2)
TLE line 1: 1 17705U 87028D 25307.72130463 .00000108 00000-0 00000+0 0 9996
TLE line 2: 2 17705 11.5019 322.4319 0024633 113.4733 77.0471 0.99872521142212
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 20’, on board a Proton-K/DM space rocket.
The launch took place on March 19, 1987, 3:54 a.m. from 200/40.
For more information about the launch, click the button.
Proton-K/DM | Raduga 20
Agency: N/A
Status: Launch Successful
Launch date: March 19, 1987, 3:54 a.m. UTC
Rocket: Proton-K/DM
Launch pad: 200/40
Location: Baikonur Cosmodrome, Republic of Kazakhstan
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