Showing default

COSMOS 1691, 16139

Orbit data source: Space-Track

COSMOS 1691, 16139 is a payload satellite owned by GUKOS (CIS) in LEO that was launched on Wed, 09 Oct 1985 UTC via a TSIKLON-3 launch vehicle from the Plesetsk Missile And Space Complex (PKMTR). Payload-class satellites include a variety of spacecraft equipped with specific instruments for various scientific and technological missions. These include communications satellites like Starlink; space stations such as the ISS; scientific satellites like the Hubble; Earth observation satellites from companies like Planet Labs, Umbra, and HawkEye 360; GPS; miniature CubeSats for education and research; and military/defense satellites.

Loading next visibility...
Identifier
16139, 1985-094B
Orbit
LEO
Last TLE update
13 hours ago
Origin
Manufacturer
NPO PM
Mission
Defense Communications
Bus & Motor
STRELA-3, Unknown motor
Mass
225 kg wet, 225 kg dry
Launch date (UTC)
1985-10-09 (40 years ago)
Launch vehicle
TSIKLON-3
Launch site
Plesetsk Missile And Space Complex (PKMTR)
Object type
Payload
Rocket body
Debris
Shape & HBR
Cyl, 1.6 m
Radar Cross Section
1.257 m², Medium (>0.1 m² and < 1m²)

Expand to show TLE details & history

TLE from 13 hours ago
0 COSMOS 1691
1 16139U 85094B   25186.38715532  .00000029  00000-0  10467-3 0  9994
2 16139  82.6122 150.2877 0001080  83.1779  72.0055 12.62462733831475
Epoch: 2025-07-05T09:17Z
TLE epoch observation values (Epoch: 2025-07-05T09:17:30.219Z)
Latitude
24.6097°
Longitude
-96.10211°
Altitude
1,415.367 km
Speed
7.155 km/s
True Right ascension
21h 47m 35s
True Declination
24° 29' 27"
Sunlit
Object was in daylight at epoch
Visualization orbit readout
Latitude
41.18103°
Longitude
-99.54518°
Altitude
1,418.17 km
Speed
7.156 km/s
Apparent Right ascension
21h 58m 06s
Apparent Declination
5° 33' 13"
Sunlit
Object is in daylight
Visualization observer readout
Local Sidereal Time
10:27:14
Azimuth
10.112° NNE
Elevation
-44.037°
Doppler factor
1
Orbital elements
Apogee altitude
1,410.956 km
Perigee altitude
1,409.274 km
Semi-major axis
7,788.252 km
Eccentricity
0.00011
Inclination
82.6122°
RAAN
150.2877°
Arg. of periapsis
83.1779°
True anomaly
Unknown
Mean anomaly
72.0055°
Eccentric anomaly
Unknown
Mean motion
3.15779 °/min
Orbital period
114 mins
BSTAR
0.00010467
Loading maneuver chart data...
Loading SW <> Apogee altitude chart data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...

COSMOS 1691 Visibility forecast

Observer location: undefined°, undefined°

Span
Click to sort rows by Start time (UTC) header in descending order
Start Az.
Max El. time (UTC)
Max El. Az.
Max El.
End time (UTC)
End Az.
13 mins2025-07-05 23:49:02.593Z238.154° WSW2025-07-05 23:55:02.593Z287.946° WNW24.64°2025-07-06 00:02:02.593Z346.245° N
10 mins2025-07-06 07:56:02.593Z27.061° NE2025-07-06 08:01:02.593Z72.451° E22.279°2025-07-06 08:06:02.593Z113.702° SE
15 mins2025-07-06 09:49:02.593Z346.473° N2025-07-06 09:56:02.593Z276.126° WNW42.999°2025-07-06 10:04:02.593Z186.728° SSW
10 mins2025-07-06 20:45:02.593Z120.004° SE2025-07-06 20:49:02.593Z85.807° E21.745°2025-07-06 20:55:02.593Z35.98° NE
|