COSMOS 1690, 16138
Orbit data source: Space-Track
COSMOS 1690, 16138 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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16138 intel report (Beta)
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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
CYL + ANT, 1.1 m
Radar Cross Section
Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 18 hours ago
TLE from 18 hours ago
0 COSMOS 1690
1 16138U 85094A 26306.80603095 .00000027 00000-0 84740-4 0 9999
2 16138 82.6041 132.3682 0021574 339.9856 31.4387 12.66110315897533Epoch: 2026-11-02T19:20Z
TLE epoch observation values (Epoch: 2026-11-02T19:20:41.074Z)
Latitude
11.41282°
Longitude
161.61336°
Altitude
1,385.505 km
Speed
7.174 km/s
True Right ascension
08h 55m 26s
True Declination
11° 21' 06"
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
09:22:09
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,411.91 km
Perigee altitude
1,378.369 km
Semi-major axis
7,773.277 km
Eccentricity
0.00216
Inclination
82.6041°
RAAN
132.3682°
Arg. of periapsis
339.9856°
True anomaly
31.56794°
Mean anomaly
31.4387°
Eccentric anomaly
31.50329°
Mean motion
3.16692 °/min
Orbital period
113.68 mins
BSTAR
0.00008474
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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 1690 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. |
|---|---|---|---|---|---|---|---|
| 14 mins | 2026-11-03 14:21:20.473Z | 224.194° SW | 2026-11-03 14:28:20.473Z | 285.461° WNW | 35.88° | 2026-11-03 14:35:20.473Z | 349.771° N |
| 9 mins | 2026-11-03 22:28:20.473Z | 32.146° NE | 2026-11-03 22:32:20.473Z | 64.106° ENE | 17.682° | 2026-11-03 22:37:20.473Z | 101.923° ESE |
| 15 mins | 2026-11-04 00:21:20.473Z | 352.874° N | 2026-11-04 00:28:20.473Z | 162.366° S | 85.569° | 2026-11-04 00:36:20.473Z | 174.464° S |
| 7 mins | 2026-11-04 02:18:20.473Z | 307.585° NW | 2026-11-04 02:21:20.473Z | 283.809° WNW | 16.804° | 2026-11-04 02:25:20.473Z | 252.63° W |
| 6 mins | 2026-11-04 11:17:20.473Z | 96.489° ESE | 2026-11-04 11:19:20.473Z | 80.522° E | 15.571° | 2026-11-04 11:23:20.473Z | 49.425° ENE |
| 15 mins | 2026-11-04 13:06:20.473Z | 183.971° SSW | 2026-11-04 13:13:20.473Z | 33.862° NE | 85.536° | 2026-11-04 13:21:20.473Z | 8.195° NNE |
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 descending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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