COSMOS 1880, 18339
Orbit data source: Space-Track
COSMOS 1880, 18339 is a payload satellite owned by UNKS (CIS) in LEO that was launched on Mon, 07 Sep 1987 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
18339 intel report (Beta)
Focus sentinelFocus sentinel
Edit Public Description
Focus sentinelFocus sentinel
Create New Watchlist
Identifier
Orbit
Country
CISRelated business
Manufacturer
NPO PM
Mission
Defense Communications
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, 0.8 m
Radar Cross Section
1.257 m², Medium (>0.1 m² and < 1m²)
Expand to show TLE details & historyLast TLE update: 9 hours ago
TLE from 9 hours ago
0 COSMOS 1880
1 18339U 87074F 26061.77668008 .00000030 00000-0 10342-3 0 9993
2 18339 82.5662 331.2657 0010339 58.4578 356.5490 12.65533636777491Epoch: 2026-03-02T18:38Z
TLE epoch observation values (Epoch: 2026-03-02T18:38:25.158Z)
Latitude
54.40984°
Longitude
-98.45229°
Altitude
1,401.066 km
Speed
7.168 km/s
True Right ascension
22h 46m 52s
True Declination
54° 15' 37"
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
07:10:43
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,405.543 km
Perigee altitude
1,389.465 km
Semi-major axis
7,775.641 km
Eccentricity
0.00103
Inclination
82.5662°
RAAN
331.2657°
Arg. of periapsis
58.4578°
True anomaly
356.54186°
Mean anomaly
356.549°
Eccentric anomaly
356.54543°
Mean motion
3.16547 °/min
Orbital period
113.73 mins
BSTAR
0.00010342
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 #74 in the year 1987 (1987-09-07 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 1880 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. |
|---|---|---|---|---|---|---|---|
| 13 mins | 2026-03-03 04:26:29.612Z | 13.019° NNE | 2026-03-03 04:33:29.612Z | 73.122° E | 25.892° | 2026-03-03 04:39:29.612Z | 124.294° SE |
| 14 mins | 2026-03-03 06:21:29.612Z | 342.254° N | 2026-03-03 06:28:29.612Z | 264.764° W | 40.135° | 2026-03-03 06:35:29.612Z | 194.978° SSW |
| 11 mins | 2026-03-03 17:14:29.612Z | 131.166° SE | 2026-03-03 17:19:29.612Z | 88.078° E | 24.76° | 2026-03-03 17:25:29.612Z | 34.291° NE |
| 14 mins | 2026-03-03 19:07:29.612Z | 206.439° SW | 2026-03-03 19:14:29.612Z | 294.498° NW | 40.269° | 2026-03-03 19:21:29.612Z | 359.104° 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 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 |
|---|