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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). Payloads include a variety of satellites, spacecraft, and rockets 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.

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COSMOS 1691 details
Identifier
16139, 1985-094B
Orbit
LEO
Last TLE update6 hours ago
Origin
Flag of CISGUKOS (CIS)
ManufacturerNPO PM
MissionDefense Communications
Bus & MotorSTRELA-3, Unknown motor
Mass225 kg wet, 225 kg dry
Launch date (UTC)
1985-10-09 (39 years ago)
Launch vehicle
TSIKLON-3
Launch site
Plesetsk Missile And Space Complex (PKMTR)
Object type
Payload
Rocket body
Debris
Shape & HBRCyl, 1.6 m
Radar Cross Section1.257 m², Medium (>0.1 m² and < 1m²)

Expand to show TLE details & history

TLE from 6 hours ago
0 COSMOS 1691
1 16139U 85094B   25025.55757058  .00000043  00000-0  17836-3 0  9997
2 16139  82.6087 252.4544 0000430  80.7484 292.0319 12.62455474811182
Epoch: 2025-01-25T13:22Z
Definitive object data (Epoch: 2025-01-25T13:22:54.098Z)
Latitude12.63134°
Longitude-71.71803°
Altitude1,414.686 km
Speed7.154 km/s
True Right ascension16h 56m 26s
True Declination12° 33' 52"
Sunlit
Object was in daylight at TLE epoch
Visualization TLE readout
Latitude34.23128°
Longitude101.41603°
Altitude1,417.072 km
Speed7.155 km/s
Apparent Right ascension06h 26m 50s
Apparent Declination1° 48' 05"
Sunlit
Object is in daylight
Visualization observer readout
Local Sidereal Time21:08:20
Azimuth51.622° ENE
Elevation-34.325°
Doppler factor1
Orbital elements
Apogee altitude1,410.48 km
Perigee altitude1,409.81 km
Semi-major axis7,788.282 km
Eccentricity0.000043
Inclination82.6087°
RAAN252.4544°
Arg. of periapsis80.7484°
True anomaly292.02733°
Mean anomaly292.0319°
Eccentric anomaly292.02962°
Mean motion3.15777 °/min
BSTAR0.00017836
Orbital period114 mins
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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.
12 mins2025-01-26 01:20:20.092Z17.89° NNE2025-01-26 01:26:20.092Z66.855° ENE22.438°2025-01-26 01:32:20.092Z116.32° SE
14 mins2025-01-26 03:15:20.092Z345.802° N2025-01-26 03:22:20.092Z255.361° W42.925°2025-01-26 03:29:20.092Z187.494° SSW
11 mins2025-01-26 14:10:20.092Z123.38° SE2025-01-26 14:15:20.092Z81.082° E21.897°2025-01-26 14:21:20.092Z33.592° NE
15 mins2025-01-26 16:02:20.092Z198.713° SSW2025-01-26 16:09:20.092Z272.484° WNW42.802°2025-01-26 16:17:20.092Z2.195° NNE
4 mins2025-01-26 18:04:20.092Z287.412° WNW2025-01-26 18:06:20.092Z302.185° NW11.905°2025-01-26 18:08:20.092Z316.869° NNW
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