COSMOS 249, 3504
Orbit data source: Space-Track
COSMOS 249, 3504 is a payload satellite owned by PKO (CIS) in LEO that was launched on Sun, 20 Oct 1968 UTC via a TSIKLON-2A launch vehicle from the Tyuratam Missile And Space Complex (TTMTR). 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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3504 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
CISRelated business
Manufacturer
TSKBM/KB1
Mission
Spacecraft
Bus & Motor
IS, Unknown motor
Mass
1,400 kg wet, ~1,400 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Unknown
Radar Cross Section
Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 19 hours ago
TLE from 19 hours ago
0 COSMOS 249
1 03504U 68091A 25310.13131013 .00000040 00000-0 48984-4 0 9991
2 03504 62.3484 107.2531 0992155 335.7291 19.9835 12.97004956691555Epoch: 2025-11-06T03:09Z
TLE epoch observation values (Epoch: 2025-11-06T03:09:05.195Z)
Latitude
-0.00003°
Longitude
14.38741°
Altitude
572.191 km
Speed
7.915 km/s
True Right ascension
07h 09m 00s
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
18:12:33
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
2,031.912 km
Perigee altitude
513.725 km
Semi-major axis
7,650.956 km
Eccentricity
0.09922
Inclination
62.3484°
RAAN
107.2531°
Arg. of periapsis
335.7291°
True anomaly
24.37404°
Mean anomaly
19.9835°
Eccentric anomaly
22.12444°
Mean motion
3.24317 °/min
Orbital period
111 mins
BSTAR
0.000048984
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Other satellites on launch #91 in the year 1968 (1968-10-20 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 249 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. |
|---|---|---|---|---|---|---|---|
| 21 mins | 2025-11-06 22:12:32.420Z | 314.313° NW | 2025-11-06 22:22:32.420Z | 249.984° W | 36.403° | 2025-11-06 22:33:32.420Z | 179.195° S |
| 11 mins | 2025-11-07 12:36:32.420Z | 221.529° SW | 2025-11-07 12:40:32.420Z | 351.994° N | 44.136° | 2025-11-07 12:47:32.420Z | 34.372° NE |
| 9 mins | 2025-11-07 14:33:32.420Z | 300.824° NW | 2025-11-07 14:36:32.420Z | 334.083° NNW | 21.533° | 2025-11-07 14:42:32.420Z | 22.123° NNE |
| 9 mins | 2025-11-07 16:31:32.420Z | 334.925° NNW | 2025-11-07 16:35:32.420Z | 5.122° NNE | 16.161° | 2025-11-07 16:40:32.420Z | 36.798° NE |
| 16 mins | 2025-11-07 18:27:32.420Z | 340.095° N | 2025-11-07 18:34:32.420Z | 32.735° NE | 26.023° | 2025-11-07 18:43:32.420Z | 85.781° E |
| 21 mins | 2025-11-07 20:22:32.420Z | 328.843° NNW | 2025-11-07 20:31:32.420Z | 54.673° ENE | 43.663° | 2025-11-07 20:43:32.420Z | 136.336° SSE |
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 ascending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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