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.
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16139 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
CISRelated business
Manufacturer
NPO PM
Mission
Spacecraft
Bus & Motor
STRELA-3, Unknown motor
Mass
225 kg wet, 225 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Unknown
Radar Cross Section
Medium (>0.1 m² and <1 m²)
Expand to show TLE details & historyLast TLE update: 18 hours ago
TLE from 18 hours ago
0 COSMOS 1691
1 16139U 85094B 25311.76336122 .00000036 00000-0 14334-3 0 9995
2 16139 82.6116 70.6148 0000678 91.1338 78.7243 12.62468305847296Epoch: 2025-11-07T18:19Z
TLE epoch observation values (Epoch: 2025-11-07T18:19:14.409Z)
Latitude
9.99809°
Longitude
-72.70133°
Altitude
1,414.665 km
Speed
7.154 km/s
True Right ascension
16h 37m 14s
True Declination
9° 56' 40"
Sunlit
Visualization orbit readout
Latitude
Unknown
Longitude
Unknown
Altitude
Unknown
Speed
Unknown
Apparent Right ascension
Unknown
Apparent Declination
Unknown
Sunlit
Visualization observer readout
Local Sidereal Time
08:07:01
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,410.62 km
Perigee altitude
1,409.564 km
Semi-major axis
7,788.229 km
Eccentricity
0.00007
Inclination
82.6116°
RAAN
70.6148°
Arg. of periapsis
91.1338°
True anomaly
78.73192°
Mean anomaly
78.7243°
Eccentric anomaly
78.72811°
Mean motion
3.1578 °/min
Orbital period
114 mins
BSTAR
0.00014334
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Other satellites on launch #94 in the year 1985 (1985-10-09 UTC)
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You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.COSMOS 1691 Visibility forecast
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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 mins | 2025-11-08 18:45:47.667Z | 12.293° NNE | 2025-11-08 18:52:47.667Z | 78.611° E | 29.515° | 2025-11-08 18:58:47.667Z | 131.37° SE |
| 14 mins | 2025-11-08 20:40:47.667Z | 338.502° N | 2025-11-08 20:47:47.667Z | 264.251° W | 36.717° | 2025-11-08 20:54:47.667Z | 201.541° SSW |
| 12 mins | 2025-11-09 07:34:47.667Z | 139.626° SSE | 2025-11-09 07:40:47.667Z | 81.297° E | 29.461° | 2025-11-09 07:46:47.667Z | 28.343° NE |
| 14 mins | 2025-11-09 09:28:47.667Z | 215.783° SW | 2025-11-09 09:34:47.667Z | 275.986° WNW | 36.561° | 2025-11-09 09:42:47.667Z | 356.188° N |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
Click to sort rows by RSO header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Type header in ascending order | Click to sort rows by Inclination Δ header in ascending order | Click to sort rows by RAAN Δ header in ascending order | Click to sort rows by Coplanar Angle header in ascending order | Click to sort rows by SMA Δ header in ascending order | Click to sort rows by Orbital period header in ascending order | Click to sort rows by <5km Md TCA header in ascending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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