COSMOS 2535, 44421
Orbit data source: Space-Track
COSMOS 2535, 44421 is a payload satellite owned by TS VS RF (CIS) in SSO that was launched on Wed, 10 Jul 2019 UTC via a SOYUZ-2-1V 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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44421 intel report (Beta)
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Identifier
Orbit
Country
CISRelated business
Manufacturer
Lavochkin
Mission
Non-operational Defense Technology
Bus & Motor
KARAT-200, Unknown motor
Mass
547 kg wet, ~400 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Cyl + 2 Pan, 1.5 m
Radar Cross Section
3.727 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 9 hours ago
TLE from 9 hours ago
0 COSMOS 2535
1 44421U 19039A 26252.57718199 .00000391 00000-0 43769-4 0 9997
2 44421 97.5732 277.5024 0006792 296.7915 63.2609 14.92078940389224Epoch: 2026-09-09T13:51Z
TLE epoch observation values (Epoch: 2026-09-09T13:51:08.523Z)
Latitude
-0.00008°
Longitude
81.08965°
Altitude
592.374 km
Speed
7.565 km/s
True Right ascension
18h 30m 00s
True Declination
0° 00' 00"
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
15:11:52
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
593.196 km
Perigee altitude
583.733 km
Semi-major axis
6,966.602 km
Eccentricity
0.00068
Inclination
97.5732°
RAAN
277.5024°
Arg. of periapsis
296.7915°
True anomaly
63.33043°
Mean anomaly
63.2609°
Eccentric anomaly
63.29566°
Mean motion
3.7326 °/min
Orbital period
96.45 mins
BSTAR
0.000043769
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Other satellites on launch #39 in the year 2019 (2019-07-10 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 2535 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. |
|---|---|---|---|---|---|---|---|
| 6 mins | 2026-09-10 01:15:20.835Z | 133.799° SE | 2026-09-10 01:18:20.835Z | 71.473° E | 37.349° | 2026-09-10 01:21:20.835Z | 10.143° NNE |
| 4 mins | 2026-09-10 02:52:20.835Z | 239.546° WSW | 2026-09-10 02:54:20.835Z | 273.129° WNW | 16.628° | 2026-09-10 02:56:20.835Z | 303.61° NW |
| 7 mins | 2026-09-10 14:34:20.835Z | 15.667° NNE | 2026-09-10 14:37:20.835Z | 135.308° SSE | 79.423° | 2026-09-10 14:41:20.835Z | 189.939° SSW |
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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