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: 5 hours ago
TLE from 5 hours ago
0 COSMOS 2535
1 44421U 19039A 26058.87958233 .00001617 00000-0 16616-3 0 9991
2 44421 97.5909 91.1704 0007606 207.8348 152.2465 14.91671991360348Epoch: 2026-02-27T21:06Z
TLE epoch observation values (Epoch: 2026-02-27T21:06:35.913Z)
Latitude
-0.00003°
Longitude
-23.18895°
Altitude
600.462 km
Speed
7.557 km/s
True Right ascension
06h 04m 40s
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
05:25:28
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
595.033 km
Perigee altitude
584.434 km
Semi-major axis
6,967.87 km
Eccentricity
0.00076
Inclination
97.5909°
RAAN
91.1704°
Arg. of periapsis
207.8348°
True anomaly
152.28705°
Mean anomaly
152.2465°
Eccentric anomaly
152.26678°
Mean motion
3.73158 °/min
Orbital period
96.47 mins
BSTAR
0.00016616
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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. |
|---|---|---|---|---|---|---|---|
| 8 mins | 2026-02-28 02:03:19.413Z | 165.287° S | 2026-02-28 02:07:19.413Z | 21.679° NNE | 44.846° | 2026-02-28 02:11:19.413Z | 348.745° N |
| 5 mins | 2026-02-28 15:24:19.413Z | 342.914° N | 2026-02-28 15:26:19.413Z | 284.936° WNW | 34.338° | 2026-02-28 15:29:19.413Z | 220.521° 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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