Key statistics
Satellite SL-16 R/B at a glance.
Uptime
13992
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: 71.0034 deg
SMA: 7213.232 km
Apoapsis: 837.85 km
Periapsis: 832.345 km
RAAN: 72.304 deg
Eccentricy: 0.0003816
Argument of periapsis: 159.29 deg
Mean anomaly: 200.8379 deg
Mean motion: 14.17124136 rev/day
Mean motion (dot): -0.00000119 rev/day2
B* drag term: -0.000035031 1/REarth
Two-line elements (TLE)
Creation date: July 8, 2025, 2:27 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: July 7, 2025, 9:38 p.m. UTC
TLE line 0: 0 SL-16 R/B
TLE line 1: 1 17590U 87027B 25188.90171152 -.00000119 00000-0 -35031-4 0 9995
TLE line 2: 2 17590 71.0034 72.3040 0003816 159.2900 200.8379 14.17124136980702
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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