COSMOS 2540, 44517
Orbit data source: Space-Track
COSMOS 2540, 44517 is a payload satellite owned by TS VS RF (CIS) in SSO that was launched on Fri, 30 Aug 2019 UTC via an ROKOT 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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44517 intel report (Beta)
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Identifier
Orbit
Country
CISRelated business
Manufacturer
Resehetnev ISS
Mission
Operational Defense Geodetic
Bus & Motor
GEO-IK-2 14F31, Unknown motor
Mass
~900 kg wet, ~900 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 2540
1 44517U 19057A 26253.23196804 .00000041 00000-0 73541-4 0 9993
2 44517 99.2078 263.3415 0014829 305.2954 54.6815 13.85960439355655Epoch: 2026-09-10T05:34Z
TLE epoch observation values (Epoch: 2026-09-10T05:34:02.038Z)
Latitude
0.00001°
Longitude
-169.43963°
Altitude
939.406 km
Speed
7.385 km/s
True Right ascension
17h 33m 21s
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
01:49:45
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
950.902 km
Perigee altitude
929.198 km
Semi-major axis
7,318.187 km
Eccentricity
0.00148
Inclination
99.2078°
RAAN
263.3415°
Arg. of periapsis
305.2954°
True anomaly
54.8203°
Mean anomaly
54.6815°
Eccentric anomaly
54.75089°
Mean motion
3.46687 °/min
Orbital period
103.84 mins
BSTAR
0.000073541
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Other satellites on launch #57 in the year 2019 (2019-08-30 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 2540 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. |
|---|---|---|---|---|---|---|---|
| 10 mins | 2026-09-10 13:05:29.367Z | 29.337° NE | 2026-09-10 13:10:29.367Z | 95.979° ESE | 45.03° | 2026-09-10 13:15:29.367Z | 168.109° S |
| 8 mins | 2026-09-10 14:49:29.367Z | 340.777° N | 2026-09-10 14:52:29.367Z | 302.056° NW | 27.684° | 2026-09-10 14:57:29.367Z | 241.714° WSW |
| 5 mins | 2026-09-10 23:05:29.367Z | 79.221° E | 2026-09-10 23:07:29.367Z | 57.067° ENE | 15.263° | 2026-09-10 23:10:29.367Z | 26.093° NE |
| 10 mins | 2026-09-11 00:44:29.367Z | 166.984° S | 2026-09-11 00:49:29.367Z | 318.481° NNW | 79.224° | 2026-09-11 00:54:29.367Z | 344.525° N |
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 descending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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