COSMOS 2451, 35498
Orbit data source: Space-Track
COSMOS 2451, 35498 is a payload satellite owned by KVR (CIS) in LEO that was launched on Mon, 06 Jul 2009 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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35498 intel report (Beta)
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Identifier
Orbit
Country
CISRelated business
Manufacturer
Resehetnev ISS
Mission
Operational Defense Communications
Bus & Motor
STRELA-3, Unknown motor
Mass
225 kg wet, 225 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Cyl + 1 Ant, 3.5 m
Radar Cross Section
1.583 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 11 hours ago
TLE from 11 hours ago
0 COSMOS 2451
1 35498U 09036A 26307.90064808 .00000017 00000-0 57247-4 0 9997
2 35498 82.4927 5.6595 0005638 265.3088 94.7346 12.40872472784972Epoch: 2026-11-03T21:36Z
TLE epoch observation values (Epoch: 2026-11-03T21:36:55.994Z)
Latitude
-0.00006°
Longitude
-1.73049°
Altitude
1,505.973 km
Speed
7.112 km/s
True Right ascension
00h 22m 38s
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
04:16:37
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,504.703 km
Perigee altitude
1,495.819 km
Semi-major axis
7,878.398 km
Eccentricity
0.00056
Inclination
82.4927°
RAAN
5.6595°
Arg. of periapsis
265.3088°
True anomaly
94.79898°
Mean anomaly
94.7346°
Eccentric anomaly
94.76679°
Mean motion
3.10375 °/min
Orbital period
115.99 mins
BSTAR
0.000057247
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Other satellites on launch #36 in the year 2009 (2009-07-06 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 2451 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. |
|---|---|---|---|---|---|---|---|
| 9 mins | 2026-11-04 13:43:41.939Z | 28.117° NE | 2026-11-04 13:48:41.939Z | 63.621° ENE | 14.99° | 2026-11-04 13:52:41.939Z | 91.553° ESE |
| 15 mins | 2026-11-04 15:39:41.939Z | 356.597° N | 2026-11-04 15:46:41.939Z | 72.469° E | 76.607° | 2026-11-04 15:54:41.939Z | 166.902° S |
| 11 mins | 2026-11-04 17:37:41.939Z | 319.92° NNW | 2026-11-04 17:42:41.939Z | 281.5° WNW | 21.511° | 2026-11-04 17:48:41.939Z | 236.781° WSW |
| 8 mins | 2026-11-05 02:48:41.939Z | 101.466° ESE | 2026-11-05 02:51:41.939Z | 78.486° E | 17.26° | 2026-11-05 02:56:41.939Z | 42.414° NE |
| 15 mins | 2026-11-05 04:40:41.939Z | 185.447° SSW | 2026-11-05 04:47:41.939Z | 1.191° NNE | 87.613° | 2026-11-05 04:55:41.939Z | 7.732° NNE |
| 9 mins | 2026-11-05 06:41:41.939Z | 265.465° W | 2026-11-05 06:45:41.939Z | 296.232° NW | 18.597° | 2026-11-05 06:50:41.939Z | 333.769° NNW |
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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