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: 11 hours ago
TLE from 11 hours ago
0 STARLINK-35953
1 66637U 25271W 26218.55408857 -.00027427 00000-0 -80517-3 0 9994
2 66637 53.1573 160.1353 0000461 71.7777 288.3276 15.34338217 40568Epoch: 2026-08-06T13:17Z
TLE epoch observation values (Epoch: 2026-08-06T13:17:53.252Z)
Latitude
0°
Longitude
5.57095°
Altitude
463.689 km
Speed
7.636 km/s
True Right ascension
10h 40m 32s
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
14:42:25
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
463.46 km
Perigee altitude
462.829 km
Semi-major axis
6,841.281 km
Eccentricity
0.00005
Inclination
53.1573°
RAAN
160.1353°
Arg. of periapsis
71.7777°
True anomaly
288.32259°
Mean anomaly
288.3276°
Eccentric anomaly
288.32509°
Mean motion
3.83563 °/min
Orbital period
93.86 mins
BSTAR
-0.00080517
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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. |
|---|---|---|---|---|---|---|---|
| 5 mins | 2026-08-07 05:25:39.692Z | 322.865° NNW | 2026-08-07 05:27:39.692Z | 10.562° NNE | 38.528° | 2026-08-07 05:30:39.692Z | 112.408° ESE |
| 5 mins | 2026-08-07 22:18:39.692Z | 204.005° SW | 2026-08-07 22:20:39.692Z | 137.409° SSE | 38.318° | 2026-08-07 22:23:39.692Z | 60.908° ENE |
| 4 mins | 2026-08-07 23:56:39.692Z | 291.231° WNW | 2026-08-07 23:58:39.692Z | 337.021° NNW | 21.644° | 2026-08-08 00:00:39.692Z | 19.157° NNE |
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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