COSMOS 87, 1585
Orbit data source: Space-Track
COSMOS 87, 1585 is a payload satellite owned by OKB-10 (CIS) in LEO that was launched on Sat, 18 Sep 1965 UTC via a KOSMOS 65S3 launch vehicle from the Tyuratam Missile And Space Complex (TTMTR). 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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1585 intel report (Beta)
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Identifier
Orbit
Country
CISRelated business
Manufacturer
OKB-10
Mission
Spacecraft
Bus & Motor
STRELA-1 11F610, Unknown motor
Mass
50 kg wet, 50 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Unknown
Radar Cross Section
Medium (>0.1 m² and <1 m²)
Expand to show TLE details & historyLast TLE update: 15 hours ago
TLE from 15 hours ago
0 COSMOS 87
1 1585U 65073B 26130.99039721 -.00000102 00000-0 -43820-4 0 9998
2 1585 56.0642 23.7340 0203326 337.7015 34.0192 12.47462967761118Epoch: 2026-05-10T23:46Z
TLE epoch observation values (Epoch: 2026-05-10T23:46:10.318Z)
Latitude
10.78398°
Longitude
165.73196°
Altitude
1,344.127 km
Speed
7.247 km/s
True Right ascension
02h 04m 14s
True Declination
10° 43' 33"
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
23:13:49
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,634.621 km
Perigee altitude
1,315.273 km
Semi-major axis
7,853.084 km
Eccentricity
0.02033
Inclination
56.0642°
RAAN
23.734°
Arg. of periapsis
337.7015°
True anomaly
35.35064°
Mean anomaly
34.0192°
Eccentric anomaly
34.6821°
Mean motion
3.11877 °/min
Orbital period
115.43 mins
BSTAR
-0.00004382
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Other satellites on launch #73 in the year 1965 (1965-09-18 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 87 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. |
|---|---|---|---|---|---|---|---|
| 9 mins | 2026-05-11 17:07:40.155Z | 147.899° SSE | 2026-05-11 17:11:40.155Z | 116.976° SE | 17.174° | 2026-05-11 17:16:40.155Z | 78.607° E |
| 15 mins | 2026-05-11 19:04:40.155Z | 216.027° SW | 2026-05-11 19:11:40.155Z | 105.297° ESE | 44.448° | 2026-05-11 19:19:40.155Z | 47.315° ENE |
| 14 mins | 2026-05-11 21:06:40.155Z | 275.026° WNW | 2026-05-11 21:12:40.155Z | 333.15° NNW | 32.502° | 2026-05-11 21:20:40.155Z | 40.884° NE |
| 14 mins | 2026-05-11 23:09:40.155Z | 310.832° NW | 2026-05-11 23:15:40.155Z | 358.496° N | 25.798° | 2026-05-11 23:23:40.155Z | 59.145° ENE |
| 16 mins | 2026-05-12 01:11:40.155Z | 321.426° NNW | 2026-05-12 01:19:40.155Z | 36.83° NE | 36.065° | 2026-05-12 01:27:40.155Z | 100.018° ESE |
| 17 mins | 2026-05-12 03:12:40.155Z | 309.122° NW | 2026-05-12 03:20:40.155Z | 226.632° WSW | 42.767° | 2026-05-12 03:29:40.155Z | 152.045° SSE |
| 8 mins | 2026-05-12 05:16:40.155Z | 269.896° W | 2026-05-12 05:19:40.155Z | 249.672° W | 15.395° | 2026-05-12 05:24:40.155Z | 217.497° SW |
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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