Key statistics
Satellite SL-12 R/B(2) at a glance.
Uptime
12277
Days in orbit
Revolutions
≈ 2.1
Per day
Orbit
MEO
Medium Earth Orbit
Inclination
64.7
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: 675.369 minutes
Inclination: 64.7293 deg
SMA: 25498.874 km
Apoapsis: 19140.428 km
Periapsis: 19101.05 km
RAAN: 79.2034 deg
Eccentricy: 0.00077215
Argument of periapsis: 50.3288 deg
Mean anomaly: 307.3138 deg
Mean motion: 2.13216718 rev/day
Mean motion (dot): 0.00000053 rev/day2
B* drag term: 0.0 1/REarth
Two-line elements (TLE)
Creation date: Sept. 8, 2025, 3:16 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Sept. 7, 2025, 8:52 a.m. UTC
TLE line 0: 0 SL-12 R/B(2)
TLE line 1: 1 21858U 92005F 25250.37009604 .00000053 00000-0 00000-0 0 9991
TLE line 2: 2 21858 64.7293 79.2034 0007722 50.3288 307.3138 2.13216718250324
Live tracking on map
Real-time ground track for satellite 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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