Key statistics
Satellite SL-16 R/B at a glance.
Uptime
14051
Days in orbit
Revolutions
≈ 14.2
Per day
Orbit
LEO
Low Earth Orbit
Inclination
71.0
Latest
Satellite identification and parameters
Extended collection of information and parameters for SL-16 R/B.
Object identification
Identified? True
Debris? False
Object name: SL-16 R/B
International designator: 1987-027B
Object number (NORAD): 17590
Object ID (CCSDS): 17590
Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 101.614 minutes
Inclination: 71.0041 deg
SMA: 7213.206 km
Apoapsis: 837.855 km
Periapsis: 832.286 km
RAAN: 309.4522 deg
Eccentricy: 0.00038601
Argument of periapsis: 20.6853 deg
Mean anomaly: 339.4426 deg
Mean motion: 14.17131926 rev/day
Mean motion (dot): 0.00000269 rev/day2
B* drag term: 0.00015743037 1/REarth
Two-line elements (TLE)
Creation date: Sept. 4, 2025, 10:13 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Sept. 4, 2025, 4:56 a.m. UTC
TLE line 0: 0 SL-16 R/B
TLE line 1: 1 17590U 87027B 25247.20610078 .00000269 00000-0 15743-3 0 9990
TLE line 2: 2 17590 71.0041 309.4522 0003860 20.6853 339.4426 14.17131926988969
Live tracking on map
Real-time ground track for satellite SL-16 R/B.
In-orbit conjunctions
A list of the most updated potential collisions computed for object SL-16 R/B.
Associated space launch
Dynamic simulator of the Tselina-2 ELINT satellite
SL-16 R/B was lifted into orbit during the mission ‘Zenit-2 | GVM Tselina-2’, on board a Zenit-2 space rocket.
The launch took place on March 18, 1987, 8:30 a.m. from 45/1.
For more information about the launch, click the button.
Zenit-2 | GVM Tselina-2
Agency: N/A
Status: Launch Successful
Launch date: March 18, 1987, 8:30 a.m. UTC
Rocket: Zenit-2
Launch pad: 45/1
Location: Baikonur Cosmodrome, Republic of Kazakhstan
...
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