Key statistics
Satellite SL-12 R/B(2) at a glance.
Uptime
14594
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: 101.274 minutes
Inclination: 71.1095 deg
SMA: 7197.141 km
Apoapsis: 845.598 km
Periapsis: 792.415 km
RAAN: 1.0915 deg
Eccentricy: 0.0036947
Argument of periapsis: 234.1313 deg
Mean anomaly: 208.6573 deg
Mean motion: 14.21879256 rev/day
Mean motion (dot): 0.00000069 rev/day2
B* drag term: 0.000052426 1/REarth
Two-line elements (TLE)
Creation date: May 14, 2025, 3:37 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: May 13, 2025, 8:57 p.m. UTC
TLE line 0: 0 SL-12 R/B(2)
TLE line 1: 1 15772U 85042D 25133.87310845 .00000069 00000-0 52426-4 0 9999
TLE line 2: 2 15772 71.1095 1.0915 0036947 234.1313 208.6573 14.21879256 71777
Live tracking on map
Real-time ground track for satellite 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
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