COSMOS 2503, 40420
Orbit data source: Space-Track
COSMOS 2503, 40420 is a payload satellite owned by VVKO VKS (CIS) in SSO that was launched on Fri, 27 Feb 2015 UTC via a SOYUZ-2-1A 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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40420 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
CISRelated business
Manufacturer
Arsenal
Mission
Operational Defense Imaging
Bus & Motor
BARS, AOCS
Mass
3,700 kg wet, ~3,500 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Cyl + 2 Pan, 5.0 m
Radar Cross Section
20.881 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 11 hours ago
TLE from 11 hours ago
0 COSMOS 2503
1 40420U 15009A 25296.62158832 .00003159 00000-0 22304-3 0 9996
2 40420 97.8668 344.0748 0015912 336.8556 23.1951 15.05599321583322Epoch: 2025-10-23T14:55Z
TLE epoch observation values (Epoch: 2025-10-23T14:55:05.230Z)
Latitude
-0.0001°
Longitude
88.02481°
Altitude
542.592 km
Speed
7.597 km/s
True Right ascension
22h 56m 17s
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
21:20:39
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
557.691 km
Perigee altitude
535.653 km
Semi-major axis
6,924.809 km
Eccentricity
0.00159
Inclination
97.8668°
RAAN
344.0748°
Arg. of periapsis
336.8556°
True anomaly
23.26705°
Mean anomaly
23.1951°
Eccentric anomaly
23.23106°
Mean motion
3.76644 °/min
Orbital period
95.58 mins
BSTAR
0.00022304
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Other satellites on launch #9 in the year 2015 (2015-02-27 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 2503 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. |
|---|---|---|---|---|---|---|---|
| 5 mins | 2025-10-24 03:49:09.876Z | 208.839° SW | 2025-10-24 03:51:09.876Z | 264.156° W | 30.893° | 2025-10-24 03:54:09.876Z | 326.41° NNW |
| 5 mins | 2025-10-24 15:26:09.876Z | 55.539° ENE | 2025-10-24 15:28:09.876Z | 97.244° ESE | 22.37° | 2025-10-24 15:31:09.876Z | 149.407° SSE |
| 4 mins | 2025-10-24 17:01:09.876Z | 323.907° NNW | 2025-10-24 17:03:09.876Z | 279.76° WNW | 21.442° | 2025-10-24 17:05:09.876Z | 244.705° WSW |
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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