STARLINK-3991, 52641
Orbit data source: Space-Track
STARLINK-3991, 52641 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Sat, 14 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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52641 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, ~275 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-3991
1 52641U 22052AV 26171.35283814 .00001094 00000-0 86822-4 0 9994
2 52641 53.1601 158.3366 0001122 86.9596 273.1524 15.08833283226631Epoch: 2026-06-20T08:28Z
TLE epoch observation values (Epoch: 2026-06-20T08:28:05.215Z)
Latitude
0°
Longitude
122.74619°
Altitude
540.613 km
Speed
7.593 km/s
True Right ascension
10h 33m 20s
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
21:26:26
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
540.794 km
Perigee altitude
539.242 km
Semi-major axis
6,918.155 km
Eccentricity
0.00011
Inclination
53.1601°
RAAN
158.3366°
Arg. of periapsis
86.9596°
True anomaly
273.13956°
Mean anomaly
273.1524°
Eccentric anomaly
273.14598°
Mean motion
3.77188 °/min
Orbital period
95.44 mins
BSTAR
0.000086822
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Other satellites on launch #52 in the year 2022 (2022-05-14 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-3991 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 | 2026-06-23 00:12:25.717Z | 183.714° SSW | 2026-06-23 00:15:25.717Z | 129.608° SE | 23.778° | 2026-06-23 00:18:25.717Z | 75.941° E |
| 6 mins | 2026-06-23 01:52:25.717Z | 265.472° W | 2026-06-23 01:54:25.717Z | 318.886° NNW | 34.664° | 2026-06-23 01:58:25.717Z | 39.676° NE |
| 6 mins | 2026-06-23 06:53:25.717Z | 335.564° NNW | 2026-06-23 06:55:25.717Z | 14.798° NNE | 26.614° | 2026-06-23 06:59:25.717Z | 92.127° ESE |
| 5 mins | 2026-06-23 08:33:25.717Z | 282.409° WNW | 2026-06-23 08:35:25.717Z | 221.863° SW | 34.076° | 2026-06-23 08:38:25.717Z | 158.924° S |
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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