COSMOS 2552, 49503
Orbit data source: Space-Track
COSMOS 2552, 49503 is a payload satellite owned by VVKO VKS (CIS) in HEO that was launched on Thu, 25 Nov 2021 UTC via a SOYUZ-2-1B 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.
Focus sentinelFocus sentinel
Request partner network tasking
Focus sentinelFocus sentinel
Embed this page
Focus sentinelFocus sentinel
49503 intel report (Beta)
Focus sentinelFocus sentinel
Edit Public Description
Focus sentinelFocus sentinel
Edit Sat Name
Focus sentinelFocus sentinel
Create New Watchlist
Identifier
Orbit
Country
CISRelated business
Manufacturer
RKKE/KOMET
Mission
Operational Defense Early Warn
Bus & Motor
14F142 EKS, Unknown motor
Mass
2,550 kg wet, ~2,000 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 2 Pan, 5.0 m
Radar Cross Section
14.304 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 2 days ago
TLE from 2 days ago
0 COSMOS 2552
1 49503U 21113A 26171.92752245 -.00000169 00000-0 00000+0 0 9998
2 49503 62.8379 207.0752 6432564 272.4899 20.7123 2.00632292 33470Epoch: 2026-06-20T22:15Z
TLE epoch observation values (Epoch: 2026-06-20T22:15:37.939Z)
Latitude
-0.0001°
Longitude
-35.94635°
Altitude
8,788.373 km
Speed
6.128 km/s
True Right ascension
13h 48m 23s
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
21:25:56
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
37,256.251 km
Perigee altitude
3,094.693 km
Semi-major axis
26,553.609 km
Eccentricity
0.64326
Inclination
62.8379°
RAAN
207.0752°
Arg. of periapsis
272.4899°
True anomaly
87.63538°
Mean anomaly
20.7123°
Eccentric anomaly
48.17806°
Mean motion
0.5016 °/min
Orbital period
717.7 mins
BSTAR
0
Loading maneuver chart data...
Computing Atmospheric mass density...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Other satellites on launch #113 in the year 2021 (2021-11-25 UTC)
Did you know?
You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.COSMOS 2552 Visibility forecast
Loading observer location...
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. |
|---|---|---|---|---|---|---|---|
| 432 mins | 2026-06-22 12:02:56.392Z | 316.496° NNW | 2026-06-22 16:06:56.392Z | 325.553° NNW | 23.28° | 2026-06-22 19:14:56.392Z | 303.719° NW |
| 529 mins | 2026-06-22 22:41:56.392Z | 78.664° E | 2026-06-23 01:48:56.392Z | 38.278° NE | 27.507° | 2026-06-23 07:30:56.392Z | 63.535° ENE |
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 |
|---|
CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
Authenticating...
Click to sort rows by Secondary header in ascending order | Click to sort rows by Secondary name header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Owner header in ascending order | Click to sort rows by Obj. Type header in ascending order | Click to sort rows by Miss dist. header in ascending order | Click to sort rows by Rel. speed header in ascending order | Click to sort rows by Apr. angle header in ascending order | Click to sort rows by TCA header in descending order |
|---|