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.
Focus sentinelFocus sentinel
Request partner network tasking
Focus sentinelFocus sentinel
Embed this page
Focus sentinelFocus sentinel
16138 intel report (Beta)
Focus sentinelFocus sentinel
Edit Public Description
Focus sentinelFocus sentinel
Edit Sat Name
Focus sentinelFocus sentinel
Create New Watchlist
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: 17 hours ago
TLE from 17 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
08:06:12
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
Loading maneuver chart data...
Computing Atmospheric mass density...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Other satellites on launch #94 in the year 1985 (1985-10-09 UTC)
Did you know?
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
Loading observer location...
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 12:26:35.633Z | 156.527° SSE | 2026-11-03 12:33:35.633Z | 91.082° ESE | 46.192° | 2026-11-03 12:40:35.633Z | 21.543° NNE |
| 13 mins | 2026-11-03 14:22:35.633Z | 229.616° WSW | 2026-11-03 14:28:35.633Z | 289.141° WNW | 35.892° | 2026-11-03 14:35:35.633Z | 350.781° N |
| 8 mins | 2026-11-03 22:28:35.633Z | 33.886° NE | 2026-11-03 22:32:35.633Z | 66.293° ENE | 17.642° | 2026-11-03 22:36:35.633Z | 97.315° ESE |
| 14 mins | 2026-11-04 00:21:35.633Z | 352.945° N | 2026-11-04 00:27:35.633Z | 359.525° N | 81.526° | 2026-11-04 00:35:35.633Z | 174.349° S |
| 7 mins | 2026-11-04 02:18:35.633Z | 305.782° NW | 2026-11-04 02:21:35.633Z | 281.671° WNW | 16.81° | 2026-11-04 02:25:35.633Z | 250.994° W |
| 7 mins | 2026-11-04 11:16:35.633Z | 101.915° ESE | 2026-11-04 11:19:35.633Z | 78.422° E | 15.625° | 2026-11-04 11:23:35.633Z | 47.768° ENE |
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 |
|---|
CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
Authenticating...
Click to sort rows by Secondary header in ascending order | Click to sort rows by Secondary name header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Owner header in ascending order | Click to sort rows by Obj. Type header in ascending order | Click to sort rows by Miss dist. header in ascending order | Click to sort rows by Rel. speed header in ascending order | Click to sort rows by Apr. angle header in ascending order | Click to sort rows by TCA header in descending order |
|---|