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: 2 days ago
TLE from 2 days ago
0 STARLINK-3908
1 52491U 22049AS 26171.37483931 .00000022 00000-0 19464-4 0 9995
2 52491 53.1592 308.0329 0001064 78.9870 281.1241 15.08833021227891Epoch: 2026-06-20T08:59Z
TLE epoch observation values (Epoch: 2026-06-20T08:59:46.116Z)
Latitude
-0.00002°
Longitude
-95.49964°
Altitude
540.514 km
Speed
7.593 km/s
True Right ascension
20h 32m 07s
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
21:42:02
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
540.755 km
Perigee altitude
539.283 km
Semi-major axis
6,918.156 km
Eccentricity
0.00011
Inclination
53.1592°
RAAN
308.0329°
Arg. of periapsis
78.987°
True anomaly
281.11214°
Mean anomaly
281.1241°
Eccentric anomaly
281.11812°
Mean motion
3.77188 °/min
Orbital period
95.44 mins
BSTAR
0.000019464
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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. |
|---|---|---|---|---|---|---|---|
| 6 mins | 2026-06-22 12:04:59.707Z | 259.745° W | 2026-06-22 12:07:59.707Z | 332.119° NNW | 34.208° | 2026-06-22 12:10:59.707Z | 35.336° NE |
| 5 mins | 2026-06-22 17:06:59.707Z | 338.69° N | 2026-06-22 17:08:59.707Z | 23.205° NE | 27.55° | 2026-06-22 17:11:59.707Z | 86.927° E |
| 6 mins | 2026-06-22 18:45:59.707Z | 289.448° WNW | 2026-06-22 18:48:59.707Z | 210.195° SW | 32.753° | 2026-06-22 18:51:59.707Z | 158.216° S |
| 5 mins | 2026-06-23 10:17:59.707Z | 181.457° SSW | 2026-06-23 10:19:59.707Z | 128.919° SE | 29.773° | 2026-06-23 10:22:59.707Z | 70.084° E |
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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