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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Edit Public Description
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: 14 hours ago
TLE from 14 hours ago
0 COSMOS 2535
1 44421U 19039A 25305.59876074 .00001391 00000-0 14535-3 0 9993
2 44421 97.6051 337.2312 0007020 247.1411 112.9067 14.91201642342718Epoch: 2025-11-01T14:22Z
TLE epoch observation values (Epoch: 2025-11-01T14:22:12.927Z)
Latitude
-0.00005°
Longitude
80.55081°
Altitude
599.141 km
Speed
7.559 km/s
True Right ascension
22h 28m 55s
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
00:19:55
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
596.093 km
Perigee altitude
586.308 km
Semi-major axis
6,969.337 km
Eccentricity
0.0007
Inclination
97.6051°
RAAN
337.2312°
Arg. of periapsis
247.1411°
True anomaly
112.98077°
Mean anomaly
112.9067°
Eccentric anomaly
112.94374°
Mean motion
3.7304 °/min
Orbital period
96.5 mins
BSTAR
0.00014535
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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. |
|---|---|---|---|---|---|---|---|
| 7 mins | 2025-11-02 15:05:33.294Z | 12.999° NNE | 2025-11-02 15:09:33.294Z | 184.346° SSW | 43.414° | 2025-11-02 15:12:33.294Z | 192.054° SSW |
| 6 mins | 2025-11-03 01:56:33.294Z | 141.927° SSE | 2025-11-03 01:59:33.294Z | 47.611° ENE | 36.833° | 2025-11-03 02:02:33.294Z | 0.317° NNE |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
Click to sort rows by RSO header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Type header in ascending order | Click to sort rows by Inclination Δ header in ascending order | Click to sort rows by RAAN Δ header in ascending order | Click to sort rows by Coplanar Angle header in ascending order | Click to sort rows by SMA Δ header in ascending order | Click to sort rows by Orbital period header in ascending order | Click to sort rows by <5km Md TCA header in ascending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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