STARLINK-35953, 66637
Orbit data source: Space-Track
STARLINK-35953, 66637 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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66637 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: 6 hours ago
TLE from 6 hours ago
0 STARLINK-35953
1 66637U 25271W 26037.12438088 .00019982 00000-0 68503-3 0 9991
2 66637 53.1564 286.5711 0000905 91.9151 268.1953 15.30196074 12737Epoch: 2026-02-06T02:59Z
TLE epoch observation values (Epoch: 2026-02-06T02:59:06.508Z)
Latitude
-0.00003°
Longitude
105.5272°
Altitude
476.146 km
Speed
7.629 km/s
True Right ascension
19h 06m 17s
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
10:36:34
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
476.104 km
Perigee altitude
474.864 km
Semi-major axis
6,853.621 km
Eccentricity
0.00009
Inclination
53.1564°
RAAN
286.5711°
Arg. of periapsis
91.9151°
True anomaly
268.18493°
Mean anomaly
268.1953°
Eccentric anomaly
268.19012°
Mean motion
3.82528 °/min
Orbital period
94.11 mins
BSTAR
0.00068503
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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-35953 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 | 2026-02-06 18:49:03.801Z | 208.132° SW | 2026-02-06 18:52:03.801Z | 155.558° SSE | 34.939° | 2026-02-06 18:55:03.801Z | 65.736° ENE |
| 4 mins | 2026-02-06 20:29:03.801Z | 296.133° NW | 2026-02-06 20:30:03.801Z | 319.958° NNW | 22.968° | 2026-02-06 20:33:03.801Z | 25.113° NE |
| 5 mins | 2026-02-07 01:25:03.801Z | 329.917° NNW | 2026-02-07 01:27:03.801Z | 18.32° NNE | 33.03° | 2026-02-07 01:30:03.801Z | 101.04° ESE |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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