STARLINK-35908, 66639
Orbit data source: Space-Track
STARLINK-35908, 66639 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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66639 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: 14 hours ago
TLE from 14 hours ago
0 STARLINK-35908
1 66639U 25271Y 26265.40841073 .00015665 00000-0 47352-3 0 9992
2 66639 53.1550 304.8841 0002527 87.6446 272.4846 15.34416300 47708Epoch: 2026-09-22T09:48Z
TLE epoch observation values (Epoch: 2026-09-22T09:48:06.687Z)
Latitude
0.00001°
Longitude
156.58193°
Altitude
463.481 km
Speed
7.636 km/s
True Right ascension
20h 19m 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
16:26:21
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
464.641 km
Perigee altitude
461.184 km
Semi-major axis
6,841.049 km
Eccentricity
0.00025
Inclination
53.155°
RAAN
304.8841°
Arg. of periapsis
87.6446°
True anomaly
272.45567°
Mean anomaly
272.4846°
Eccentric anomaly
272.47013°
Mean motion
3.83583 °/min
Orbital period
93.85 mins
BSTAR
0.00047352
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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-35908 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 | 2026-09-23 04:43:30.449Z | 187.524° SSW | 2026-09-23 04:45:30.449Z | 142.892° SSE | 30.922° | 2026-09-23 04:48:30.449Z | 72.683° E |
| 5 mins | 2026-09-23 06:21:30.449Z | 278.028° WNW | 2026-09-23 06:23:30.449Z | 332.475° NNW | 31.858° | 2026-09-23 06:26:30.449Z | 32.719° NE |
| 5 mins | 2026-09-23 11:17:30.449Z | 339.949° N | 2026-09-23 11:19:30.449Z | 30.885° NE | 30.324° | 2026-09-23 11:22:30.449Z | 92.454° ESE |
| 4 mins | 2026-09-23 12:55:30.449Z | 275.24° WNW | 2026-09-23 12:57:30.449Z | 212.857° SW | 32.919° | 2026-09-23 12:59:30.449Z | 168.989° S |
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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