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: 5 hours ago
TLE from 5 hours ago
0 STARLINK-35965
1 66631U 25271Q 25355.50002315 .00020825 00000-0 43440-3 0 9990
2 66631 53.1605 145.3405 0001292 67.7635 310.9980 15.45541551 5656Epoch: 2025-12-21T12:00Z
TLE epoch observation values (Epoch: 2025-12-21T12:00:02.000Z)
Latitude
14.92021°
Longitude
-113.5295°
Altitude
429.397 km
Speed
7.657 km/s
True Right ascension
10h 27m 09s
True Declination
14° 49' 51"
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
15:47:52
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
430.925 km
Perigee altitude
429.166 km
Semi-major axis
6,808.182 km
Eccentricity
0.00013
Inclination
53.1605°
RAAN
145.3405°
Arg. of periapsis
67.7635°
True anomaly
310.98682°
Mean anomaly
310.998°
Eccentric anomaly
310.99241°
Mean motion
3.86364 °/min
Orbital period
93.18 mins
BSTAR
0.0004344
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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 | 2025-12-21 18:35:18.980Z | 348.208° N | 2025-12-21 18:37:18.980Z | 33.676° NE | 18.686° | 2025-12-21 18:39:18.980Z | 72.233° E |
| 5 mins | 2025-12-21 20:12:18.980Z | 296.678° NW | 2025-12-21 20:14:18.980Z | 206.701° SW | 40.8° | 2025-12-21 20:17:18.980Z | 143.171° SSE |
| 6 mins | 2025-12-22 12:56:18.980Z | 235.228° WSW | 2025-12-22 12:59:18.980Z | 0.43° NNE | 43.55° | 2025-12-22 13:02:18.980Z | 47.048° ENE |
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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