Key statistics
Satellite COSMOS 1691 at a glance.
Uptime
14581
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: 114.063 minutes
Inclination: 82.6083 deg
SMA: 7790.925 km
Apoapsis: 1413.758 km
Periapsis: 1411.822 km
RAAN: 108.5076 deg
Eccentricy: 0.00012428
Argument of periapsis: 81.1442 deg
Mean anomaly: 39.4332 deg
Mean motion: 12.62464629 rev/day
Mean motion (dot): 0.00000034 rev/day2
B* drag term: 0.00013247041 1/REarth
Two-line elements (TLE)
Creation date: Sept. 9, 2025, 10:35 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Sept. 9, 2025, 3:45 a.m. UTC
TLE line 0: 0 COSMOS 1691
TLE line 1: 1 16139U 85094B 25252.15684147 .00000034 00000-0 13247-3 0 9995
TLE line 2: 2 16139 82.6083 108.5076 0001243 81.1442 39.4332 12.62464629839776
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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