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: 15 hours ago
TLE from 15 hours ago
0 STARLINK-35908
1 66639U 25271Y 26218.37782111 .00632076 00000-0 19152-1 0 9999
2 66639 53.1594 164.7121 0002350 135.5234 224.5956 15.31369566 40488Epoch: 2026-08-06T09:04Z
TLE epoch observation values (Epoch: 2026-08-06T09:04:03.743Z)
Latitude
-0.00006°
Longitude
73.77772°
Altitude
473.772 km
Speed
7.63 km/s
True Right ascension
10h 58m 50s
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
13:49:40
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
473.592 km
Perigee altitude
470.372 km
Semi-major axis
6,850.119 km
Eccentricity
0.00024
Inclination
53.1594°
RAAN
164.7121°
Arg. of periapsis
135.5234°
True anomaly
224.5767°
Mean anomaly
224.5956°
Eccentric anomaly
224.58615°
Mean motion
3.82821 °/min
Orbital period
94.04 mins
BSTAR
0.019152
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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. |
|---|---|---|---|---|---|---|---|
| 4 mins | 2026-08-07 01:00:02.777Z | 302.923° NW | 2026-08-07 01:02:02.777Z | 341.456° N | 16.84° | 2026-08-07 01:04:02.777Z | 17.796° NNE |
| 4 mins | 2026-08-07 04:18:02.777Z | 345.838° N | 2026-08-07 04:20:02.777Z | 23.364° NE | 16.167° | 2026-08-07 04:22:02.777Z | 59.176° ENE |
| 5 mins | 2026-08-07 05:56:02.777Z | 314.951° NW | 2026-08-07 05:58:02.777Z | 7.781° NNE | 44.136° | 2026-08-07 06:01:02.777Z | 125.373° SE |
| 5 mins | 2026-08-07 22:50:02.777Z | 220.531° SW | 2026-08-07 22:52:02.777Z | 92.568° ESE | 43.629° | 2026-08-07 22:55:02.777Z | 52.901° 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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