STARLINK-35965, 66631
Orbit data source: Space-Track
STARLINK-35965, 66631 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Sun, 23 Nov 2025 UTC via an FALCON 9 launch vehicle from the Air Force Western Test Range (AFWTR). 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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66631 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 V2MO, Unknown motor
Mass
575 kg wet, ~530 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 2 Pan, 17.7 m
Radar Cross Section
36.964 m²
Expand to show TLE details & historyLast TLE update: 8 hours ago
TLE from 8 hours ago
0 STARLINK-35965
1 66631U 25271Q 26037.10011192 .00037859 00000-0 12827-2 0 9996
2 66631 53.1582 286.4192 0001401 63.3765 296.7380 15.30229474 12731Epoch: 2026-02-06T02:24Z
TLE epoch observation values (Epoch: 2026-02-06T02:24:09.669Z)
Latitude
0.00003°
Longitude
114.13609°
Altitude
475.595 km
Speed
7.629 km/s
True Right ascension
19h 05m 40s
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
12:07:59
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
476.344 km
Perigee altitude
474.424 km
Semi-major axis
6,853.521 km
Eccentricity
0.00014
Inclination
53.1582°
RAAN
286.4192°
Arg. of periapsis
63.3765°
True anomaly
296.72366°
Mean anomaly
296.738°
Eccentric anomaly
296.73083°
Mean motion
3.82536 °/min
Orbital period
94.11 mins
BSTAR
0.0012827
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Other satellites on launch #271 in the year 2025 (2025-11-23 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-35965 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. |
|---|---|---|---|---|---|---|---|
| 4 mins | 2026-02-06 18:14:13.972Z | 170.599° S | 2026-02-06 18:16:13.972Z | 130.153° SE | 19.885° | 2026-02-06 18:18:13.972Z | 89.024° E |
| 5 mins | 2026-02-06 19:52:13.972Z | 266.506° W | 2026-02-06 19:54:13.972Z | 340.606° N | 34.64° | 2026-02-06 19:57:13.972Z | 38.493° NE |
| 4 mins | 2026-02-07 00:49:13.972Z | 349.496° N | 2026-02-07 00:51:13.972Z | 38.478° NE | 22.023° | 2026-02-07 00:53:13.972Z | 77.045° E |
| 5 mins | 2026-02-07 02:27:13.972Z | 287.388° WNW | 2026-02-07 02:29:13.972Z | 203.278° SW | 36.987° | 2026-02-07 02:32:13.972Z | 149.216° 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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