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 26118.84542994 .00001157 00000-0 11987-3 0 9993
2 44421 97.5807 148.8918 0008841 27.7835 332.3855 14.91840800369287Epoch: 2026-04-28T20:17Z
TLE epoch observation values (Epoch: 2026-04-28T20:17:25.146Z)
Latitude
-0.00004°
Longitude
-12.27787°
Altitude
589.782 km
Speed
7.568 km/s
True Right ascension
09h 55m 34s
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
09:08:54
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
595.367 km
Perigee altitude
583.047 km
Semi-major axis
6,967.344 km
Eccentricity
0.00088
Inclination
97.5807°
RAAN
148.8918°
Arg. of periapsis
27.7835°
True anomaly
332.33849°
Mean anomaly
332.3855°
Eccentric anomaly
332.362°
Mean motion
3.73201 °/min
Orbital period
96.46 mins
BSTAR
0.00011987
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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 | 2026-04-29 02:51:14.429Z | 216.213° SW | 2026-04-29 02:54:14.429Z | 267.717° W | 20.942° | 2026-04-29 02:57:14.429Z | 316.454° NNW |
| 6 mins | 2026-04-29 14:35:14.429Z | 30.865° NE | 2026-04-29 14:37:14.429Z | 87.838° E | 39.601° | 2026-04-29 14:41:14.429Z | 178.389° S |
| 5 mins | 2026-04-30 01:25:14.429Z | 119.403° SE | 2026-04-30 01:27:14.429Z | 70.601° E | 28.879° | 2026-04-30 01:30:14.429Z | 11.959° NNE |
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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