STARLINK-3961, 52637
Orbit data source: Space-Track
STARLINK-3961, 52637 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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52637 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-3961
1 52637U 22052AR 26171.34816337 .00000433 00000-0 45288-4 0 9997
2 52637 53.1595 158.1541 0001187 94.1447 265.9680 15.08843395227434Epoch: 2026-06-20T08:21Z
TLE epoch observation values (Epoch: 2026-06-20T08:21:21.315Z)
Latitude
-0.00001°
Longitude
124.2512°
Altitude
540.682 km
Speed
7.593 km/s
True Right ascension
10h 32m 36s
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
21:28:03
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
540.808 km
Perigee altitude
539.166 km
Semi-major axis
6,918.124 km
Eccentricity
0.00012
Inclination
53.1595°
RAAN
158.1541°
Arg. of periapsis
94.1447°
True anomaly
265.95443°
Mean anomaly
265.968°
Eccentric anomaly
265.96122°
Mean motion
3.7719 °/min
Orbital period
95.44 mins
BSTAR
0.000045288
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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-3961 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 | 2026-06-23 00:06:02.703Z | 173.82° S | 2026-06-23 00:08:02.703Z | 138.691° SSE | 21.112° | 2026-06-23 00:11:02.703Z | 82.268° E |
| 6 mins | 2026-06-23 01:45:02.703Z | 257.194° W | 2026-06-23 01:48:02.703Z | 349.746° N | 35.738° | 2026-06-23 01:51:02.703Z | 39.362° NE |
| 5 mins | 2026-06-23 06:47:02.703Z | 345.577° N | 2026-06-23 06:49:02.703Z | 33.086° NE | 25.529° | 2026-06-23 06:52:02.703Z | 86.331° E |
| 6 mins | 2026-06-23 08:26:02.703Z | 290.837° WNW | 2026-06-23 08:28:02.703Z | 241.673° WSW | 36.394° | 2026-06-23 08:32:02.703Z | 151.502° SSE |
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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