STARLINK-3908, 52491
Orbit data source: Space-Track
STARLINK-3908, 52491 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Fri, 06 May 2022 UTC via an FALCON 9 launch vehicle from the Air Force Eastern Test Range (AFETR). 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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52491 intel report (Beta)
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Identifier
Orbit
Country
USRelated business
Manufacturer
SpaceX/Seattle
Mission
Operational Commercial Communications
Bus & Motor
STARLINK, Unknown motor
Mass
297 kg wet, ~220 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 1 Pan, 10.1 m
Radar Cross Section
13.562 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 12 hours ago
TLE from 12 hours ago
0 STARLINK-3908
1 52491U 22049AS 26219.92881185 .00000002 00000-0 18195-4 0 9990
2 52491 53.1604 89.7765 0001371 90.1739 269.9409 15.08830915235228Epoch: 2026-08-07T22:17Z
TLE epoch observation values (Epoch: 2026-08-07T22:17:29.343Z)
Latitude
-0.00008°
Longitude
158.95671°
Altitude
540.664 km
Speed
7.593 km/s
True Right ascension
05h 59m 06s
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
00:40:38
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
540.974 km
Perigee altitude
539.077 km
Semi-major axis
6,918.162 km
Eccentricity
0.00014
Inclination
53.1604°
RAAN
89.7765°
Arg. of periapsis
90.1739°
True anomaly
269.92519°
Mean anomaly
269.9409°
Eccentric anomaly
269.93304°
Mean motion
3.77187 °/min
Orbital period
95.44 mins
BSTAR
0.000018195
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Other satellites on launch #49 in the year 2022 (2022-05-06 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.STARLINK-3908 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. |
|---|---|---|---|---|---|---|---|
| 7 mins | 2026-08-08 17:31:18.866Z | 203.907° SW | 2026-08-08 17:35:18.866Z | 114.061° SE | 33.349° | 2026-08-08 17:38:18.866Z | 63.949° ENE |
| 5 mins | 2026-08-08 19:12:18.866Z | 284.057° WNW | 2026-08-08 19:14:18.866Z | 331.627° NNW | 27.141° | 2026-08-08 19:17:18.866Z | 29.899° NE |
| 6 mins | 2026-08-09 00:13:18.866Z | 331.079° NNW | 2026-08-09 00:15:18.866Z | 20.121° NNE | 34.497° | 2026-08-09 00:19:18.866Z | 106.44° ESE |
| 4 mins | 2026-08-09 01:53:18.866Z | 263.67° W | 2026-08-09 01:54:18.866Z | 241.962° WSW | 23.16° | 2026-08-09 01:57:18.866Z | 181.1° SSW |
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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