Key statistics
Satellite COSMOS 1691 at a glance.
Uptime
14681
Days in orbit
Revolutions
≈ 12.6
Per day
Orbit
LEO
Low Earth Orbit
Inclination
82.6
Latest
Satellite identification and parameters
Extended collection of information and parameters for COSMOS 1691.
Object identification
Identified? True
Debris? False
Object name: COSMOS 1691
International designator: 1985-094B
Object number (NORAD): 16139
Object ID (CCSDS): 16139
Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)
Current information (Y/N): Y
RCS size: MEDIUM
Orbital parameters
Period: 114.062 minutes
Inclination: 82.6124 deg
SMA: 7790.902 km
Apoapsis: 1413.535 km
Periapsis: 1411.999 km
RAAN: 44.6833 deg
Eccentricy: 0.0000986
Argument of periapsis: 120.7168 deg
Mean anomaly: 50.6455 deg
Mean motion: 12.62470164 rev/day
Mean motion (dot): 0.00000041 rev/day2
B* drag term: 0.00016666744 1/REarth
Two-line elements (TLE)
Creation date: Dec. 18, 2025, 8:02 p.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Dec. 18, 2025, 1:51 p.m. UTC
TLE line 0: 0 COSMOS 1691
TLE line 1: 1 16139U 85094B 25352.57713160 .00000041 00000-0 16667-3 0 9997
TLE line 2: 2 16139 82.6124 44.6833 0000986 120.7168 50.6455 12.62470164852442
Live tracking on map
Real-time ground track for satellite COSMOS 1691.
In-orbit conjunctions
A list of the most updated potential collisions computed for object COSMOS 1691.
Associated space launch
Second generation store-dump military communications satellite
COSMOS 1691 was lifted into orbit during the mission ‘Tsiklon-3 | Strela-3 7 to 12’, on board a Tsiklon-3 space rocket.
The launch took place on Oct. 9, 1985, 9:35 p.m. from 32/1.
For more information about the launch, click the button.
Tsiklon-3 | Strela-3 7 to 12
Agency: N/A
Status: Launch Successful
Launch date: Oct. 9, 1985, 9:35 p.m. UTC
Rocket: Tsiklon-3
Launch pad: 32/1
Location: Plesetsk Cosmodrome, Russian Federation
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