Key statistics
Satellite SL-12 R/B(2) at a glance.
Uptime
7500
Days in orbit
Revolutions
≈ 2.1
Per day
Orbit
MEO
Medium Earth Orbit
Inclination
64.0
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: 2004-053E
Object number (NORAD): 28512
Object ID (CCSDS): 28512
Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 675.057 minutes
Inclination: 63.9943 deg
SMA: 25491.027 km
Apoapsis: 19174.05 km
Periapsis: 19051.734 km
RAAN: 71.7715 deg
Eccentricy: 0.0023992
Argument of periapsis: 231.9931 deg
Mean anomaly: 350.273 deg
Mean motion: 2.13315179 rev/day
Mean motion (dot): -0.00000026 rev/day2
B* drag term: 0.0 1/REarth
Two-line elements (TLE)
Creation date: July 9, 2025, 2:22 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: July 8, 2025, 5:01 p.m. UTC
TLE line 0: 0 SL-12 R/B(2)
TLE line 1: 1 28512U 04053E 25189.70951454 -.00000026 00000-0 00000-0 0 9999
TLE line 2: 2 28512 63.9943 71.7715 0023992 231.9931 350.2730 2.13315179159967
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 85, 86 & Uragan-M 3’, on board a Proton space rocket.
The launch took place on Dec. 26, 2004, 1:53 p.m. from 200/39 (200L).
For more information about the launch, click the button.
Proton | Uragan 85, 86 & Uragan-M 3
Agency: N/A
Status: Launch Successful
Launch date: Dec. 26, 2004, 1:53 p.m. UTC
Rocket: Proton
Launch pad: 200/39 (200L)
Location: Baikonur Cosmodrome, Republic of Kazakhstan
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