Key statistics
Satellite SL-12 R/B(2) at a glance.
Uptime
12373
Days in orbit
Revolutions
≈ 2.1
Per day
Orbit
MEO
Medium Earth Orbit
Inclination
64.8
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: 1992-005F
Object number (NORAD): 21858
Object ID (CCSDS): 21858
Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 675.37 minutes
Inclination: 64.786 deg
SMA: 25498.884 km
Apoapsis: 19139.368 km
Periapsis: 19102.129 km
RAAN: 75.9222 deg
Eccentricy: 0.00073021
Argument of periapsis: 47.443 deg
Mean anomaly: 126.5036 deg
Mean motion: 2.13216599 rev/day
Mean motion (dot): -0.0000004 rev/day2
B* drag term: 0.0 1/REarth
Two-line elements (TLE)
Creation date: Dec. 12, 2025, 3:16 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Dec. 11, 2025, 7:24 p.m. UTC
TLE line 0: 0 SL-12 R/B(2)
TLE line 1: 1 21858U 92005F 25345.80839265 -.00000040 00000-0 00000-0 0 9995
TLE line 2: 2 21858 64.7860 75.9222 0007302 47.4430 126.5036 2.13216599252367
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
GLONASS navigation satellites
SL-12 R/B(2) was lifted into orbit during the mission ‘Proton | Uragan 45 to 47’, on board a Proton space rocket.
The launch took place on Jan. 29, 1992, 10:19 p.m. from 81/23 (81L).
For more information about the launch, click the button.
Proton | Uragan 45 to 47
Agency: N/A
Status: Launch Successful
Launch date: Jan. 29, 1992, 10:19 p.m. UTC
Rocket: Proton
Launch pad: 81/23 (81L)
Location: Baikonur Cosmodrome, Republic of Kazakhstan
...
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