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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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 + 1 Pan, 17.7 m
Radar Cross Section
41.120 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 1 day ago
TLE from 1 day ago
0 STARLINK-35953
1 66637U 25271W 26313.06695125 .00036802 00000-0 11207-2 0 9996
2 66637 53.1589 78.3175 0005562 121.8631 238.2914 15.33653080 55072Epoch: 2026-11-09T01:36Z
TLE epoch observation values (Epoch: 2026-11-09T01:36:24.588Z)
Latitude
0.00007°
Longitude
5.96627°
Altitude
467.827 km
Speed
7.632 km/s
True Right ascension
05h 13m 16s
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
21:24:57
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
468.987 km
Perigee altitude
461.375 km
Semi-major axis
6,843.318 km
Eccentricity
0.00056
Inclination
53.1589°
RAAN
78.3175°
Arg. of periapsis
121.8631°
True anomaly
238.2372°
Mean anomaly
238.2914°
Eccentric anomaly
238.2643°
Mean motion
3.83392 °/min
Orbital period
93.9 mins
BSTAR
0.0011207
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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 | 2026-11-10 10:36:33.804Z | 211.751° SW | 2026-11-10 10:39:33.804Z | 160.237° S | 49.235° | 2026-11-10 10:42:33.804Z | 62.848° ENE |
| 4 mins | 2026-11-10 12:16:33.804Z | 302.327° NW | 2026-11-10 12:17:33.804Z | 326.556° NNW | 23.528° | 2026-11-10 12:20:33.804Z | 26.386° NE |
| 5 mins | 2026-11-10 17:11:33.804Z | 327.937° NNW | 2026-11-10 17:13:33.804Z | 13.316° NNE | 41.429° | 2026-11-10 17:16:33.804Z | 102.609° 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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