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: 4 hours ago
TLE from 4 hours ago
0 COSMOS 2535
1 44421U 19039A 26164.85601821 .00000797 00000-0 84063-4 0 9995
2 44421 97.5767 193.1473 0007278 214.4921 145.5827 14.91936370376149Epoch: 2026-06-13T20:32Z
TLE epoch observation values (Epoch: 2026-06-13T20:32:39.973Z)
Latitude
-0.00001°
Longitude
-17.18437°
Altitude
599.132 km
Speed
7.558 km/s
True Right ascension
12h 52m 35s
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
10:47:26
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
593.98 km
Perigee altitude
583.838 km
Semi-major axis
6,967.046 km
Eccentricity
0.00073
Inclination
97.5767°
RAAN
193.1473°
Arg. of periapsis
214.4921°
True anomaly
145.6298°
Mean anomaly
145.5827°
Eccentric anomaly
145.60626°
Mean motion
3.73225 °/min
Orbital period
96.46 mins
BSTAR
0.000084063
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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 | 2026-06-14 01:29:37.750Z | 145.099° SSE | 2026-06-14 01:33:37.750Z | 69.151° E | 35.111° | 2026-06-14 01:36:37.750Z | 5.617° NNE |
| 6 mins | 2026-06-14 14:49:37.750Z | 10.054° NNE | 2026-06-14 14:52:37.750Z | 233.17° WSW | 44.636° | 2026-06-14 14:55:37.750Z | 196.025° 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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