Key statistics
Satellite COSMOS 1691 at a glance.
Uptime
14631
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: 82.6098 deg
SMA: 7790.912 km
Apoapsis: 1413.393 km
Periapsis: 1412.161 km
RAAN: 77.1778 deg
Eccentricy: 0.00007907
Argument of periapsis: 82.4172 deg
Mean anomaly: 332.6 deg
Mean motion: 12.62467896 rev/day
Mean motion (dot): 0.00000059 rev/day2
B* drag term: 0.00026787163 1/REarth
Two-line elements (TLE)
Creation date: Oct. 28, 2025, 7:11 p.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Oct. 28, 2025, 10:27 a.m. UTC
TLE line 0: 0 COSMOS 1691
TLE line 1: 1 16139U 85094B 25301.43564914 .00000059 00000-0 26787-3 0 9990
TLE line 2: 2 16139 82.6098 77.1778 0000791 82.4172 332.6000 12.62467896845993
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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