COSMOS 1831, 17586
Orbit data source: Space-Track
COSMOS 1831, 17586 is a payload satellite owned by UNKS (CIS) in LEO that was launched on Fri, 13 Mar 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.
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17586 intel report (Beta)
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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, Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 19 hours ago
TLE from 19 hours ago
0 COSMOS 1831
1 17586U 87026E 26052.49837296 .00000009 00000-0 -91048-5 0 9990
2 17586 82.5548 245.1872 0015669 31.5109 356.0051 12.65544289798804Epoch: 2026-02-21T11:57Z
TLE epoch observation values (Epoch: 2026-02-21T11:57:39.423Z)
Latitude
27.28854°
Longitude
-81.80077°
Altitude
1,391.183 km
Speed
7.172 km/s
True Right ascension
16h 36m 08s
True Declination
27° 09' 36"
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
10:27:14
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,409.644 km
Perigee altitude
1,385.277 km
Semi-major axis
7,775.598 km
Eccentricity
0.00157
Inclination
82.5548°
RAAN
245.1872°
Arg. of periapsis
31.5109°
True anomaly
355.99257°
Mean anomaly
356.0051°
Eccentric anomaly
355.99884°
Mean motion
3.1655 °/min
Orbital period
113.73 mins
BSTAR
-0.0000091048
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Other satellites on launch #26 in the year 1987 (1987-03-13 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 1831 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 | 2026-02-22 12:34:51.420Z | 152.771° SSE | 2026-02-22 12:41:51.420Z | 81.926° E | 34.349° | 2026-02-22 12:48:51.420Z | 21.222° NNE |
| 13 mins | 2026-02-22 14:29:51.420Z | 224.941° SW | 2026-02-22 14:35:51.420Z | 280.675° WNW | 31.537° | 2026-02-22 14:42:51.420Z | 349.67° N |
| 8 mins | 2026-02-22 22:36:51.420Z | 36.82° NE | 2026-02-22 22:39:51.420Z | 60.772° ENE | 15.808° | 2026-02-22 22:44:51.420Z | 98.665° ESE |
| 15 mins | 2026-02-23 00:28:51.420Z | 353.739° N | 2026-02-23 00:35:51.420Z | 49.408° ENE | 44.86° | 2026-02-23 00:43:51.420Z | 172.206° S |
| 8 mins | 2026-02-23 02:25:51.420Z | 311.6° NW | 2026-02-23 02:29:51.420Z | 279.388° WNW | 16.905° | 2026-02-23 02:33:51.420Z | 248.302° W |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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