Key statistics
Satellite SL-16 R/B at a glance.
Uptime
14097
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: 101.613 minutes
Inclination: 71.0032 deg
SMA: 7213.169 km
Apoapsis: 839.732 km
Periapsis: 830.336 km
RAAN: 210.9857 deg
Eccentricy: 0.00065133
Argument of periapsis: 315.684 deg
Mean anomaly: 44.3761 deg
Mean motion: 14.17142689 rev/day
Mean motion (dot): 0.00000063 rev/day2
B* drag term: 0.000055213543 1/REarth
Two-line elements (TLE)
Creation date: Oct. 21, 2025, 3:26 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Oct. 20, 2025, 10:24 p.m. UTC
TLE line 0: 0 SL-16 R/B
TLE line 1: 1 17590U 87027B 25293.93399500 .00000063 00000-0 55214-4 0 9995
TLE line 2: 2 17590 71.0032 210.9857 0006513 315.6840 44.3761 14.17142689995585
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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