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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Edit Public Description
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: 1 day ago
TLE from 1 day ago
0 STARLINK-3908
1 52491U 22049AS 25346.53079599 -.00000198 00000-0 56293-5 0 9994
2 52491 53.2192 80.3909 0001440 81.2708 278.8447 15.08837671199239Epoch: 2025-12-12T12:44Z
TLE epoch observation values (Epoch: 2025-12-12T12:44:20.773Z)
Latitude
-0.00004°
Longitude
167.83322°
Altitude
540.495 km
Speed
7.593 km/s
True Right ascension
05h 21m 33s
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
12:53:59
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
540.991 km
Perigee altitude
538.999 km
Semi-major axis
6,918.132 km
Eccentricity
0.00014
Inclination
53.2192°
RAAN
80.3909°
Arg. of periapsis
81.2708°
True anomaly
278.82839°
Mean anomaly
278.8447°
Eccentric anomaly
278.83655°
Mean motion
3.7719 °/min
Orbital period
95.44 mins
BSTAR
0.0000056293
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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. |
|---|---|---|---|---|---|---|---|
| 5 mins | 2025-12-13 14:38:21.763Z | 337.799° N | 2025-12-13 14:40:21.763Z | 15.047° NNE | 23.579° | 2025-12-13 14:43:21.763Z | 76.906° E |
| 5 mins | 2025-12-13 16:18:21.763Z | 292.075° WNW | 2025-12-13 16:20:21.763Z | 224.496° SW | 39.603° | 2025-12-13 16:23:21.763Z | 150.056° SSE |
| 5 mins | 2025-12-14 07:49:21.763Z | 177.369° S | 2025-12-14 07:51:21.763Z | 138.858° SSE | 23.916° | 2025-12-14 07:54:21.763Z | 78.893° E |
| 6 mins | 2025-12-14 09:28:21.763Z | 262.54° W | 2025-12-14 09:31:21.763Z | 347.603° N | 33.267° | 2025-12-14 09:34:21.763Z | 37.502° NE |
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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