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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Edit Public Description
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: 20 hours ago
TLE from 20 hours ago
0 COSMOS 1831
1 17586U 87026E 25261.20238956 .00000008 00000-0 -12887-4 0 9990
2 17586 82.5651 345.7833 0015493 29.0277 358.3436 12.65537525779037Epoch: 2025-09-18T04:51Z
TLE epoch observation values (Epoch: 2025-09-18T04:51:26.457Z)
Latitude
27.15279°
Longitude
-80.62565°
Altitude
1,391.303 km
Speed
7.172 km/s
True Right ascension
23h 18m 24s
True Declination
27° 01' 29"
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
17:29:49
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,409.535 km
Perigee altitude
1,385.441 km
Semi-major axis
7,775.625 km
Eccentricity
0.00155
Inclination
82.5651°
RAAN
345.7833°
Arg. of periapsis
29.0277°
True anomaly
358.33846°
Mean anomaly
358.3436°
Eccentric anomaly
358.34103°
Mean motion
3.16548 °/min
Orbital period
113.73 mins
BSTAR
-0.000012887
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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 | 2025-09-19 05:28:35.161Z | 150.547° SSE | 2025-09-19 05:35:35.161Z | 83.612° E | 32.888° | 2025-09-19 05:42:35.161Z | 22.553° NE |
| 14 mins | 2025-09-19 07:23:35.161Z | 222.164° SW | 2025-09-19 07:29:35.161Z | 278.987° WNW | 32.99° | 2025-09-19 07:37:35.161Z | 354.173° N |
| 7 mins | 2025-09-19 15:30:35.161Z | 36.894° NE | 2025-09-19 15:33:35.161Z | 60.172° ENE | 14.676° | 2025-09-19 15:37:35.161Z | 90.673° ESE |
| 15 mins | 2025-09-19 17:22:35.161Z | 355.1° N | 2025-09-19 17:29:35.161Z | 57.648° ENE | 44.503° | 2025-09-19 17:37:35.161Z | 169.389° S |
| 9 mins | 2025-09-19 19:19:35.161Z | 313.011° NW | 2025-09-19 19:23:35.161Z | 280.063° WNW | 18.253° | 2025-09-19 19:28:35.161Z | 241.378° WSW |
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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