STARLINK-35940, 66617
Orbit data source: Space-Track
STARLINK-35940, 66617 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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66617 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: 7 hours ago
TLE from 7 hours ago
0 STARLINK-35940
1 66617U 25271A 26037.06961963 .00025002 00000-0 85370-3 0 9996
2 66617 53.1585 286.9466 0001014 91.2252 268.8864 15.30189987 12728Epoch: 2026-02-06T01:40Z
TLE epoch observation values (Epoch: 2026-02-06T01:40:15.136Z)
Latitude
-0.00007°
Longitude
125.6707°
Altitude
476.158 km
Speed
7.629 km/s
True Right ascension
19h 07m 47s
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
10:37:09
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
476.197 km
Perigee altitude
474.807 km
Semi-major axis
6,853.639 km
Eccentricity
0.0001
Inclination
53.1585°
RAAN
286.9466°
Arg. of periapsis
91.2252°
True anomaly
268.87478°
Mean anomaly
268.8864°
Eccentric anomaly
268.88059°
Mean motion
3.82526 °/min
Orbital period
94.11 mins
BSTAR
0.0008537
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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-35940 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. |
|---|---|---|---|---|---|---|---|
| 7 mins | 2026-02-06 19:04:38.763Z | 219.545° SW | 2026-02-06 19:08:38.763Z | 92.589° ESE | 40.602° | 2026-02-06 19:11:38.763Z | 55.183° ENE |
| 4 mins | 2026-02-06 20:44:38.763Z | 297.8° NW | 2026-02-06 20:46:38.763Z | 341.182° N | 19.807° | 2026-02-06 20:48:38.763Z | 19.567° NNE |
| 4 mins | 2026-02-07 00:02:38.763Z | 343.031° N | 2026-02-07 00:04:38.763Z | 17.096° NNE | 14.411° | 2026-02-07 00:06:38.763Z | 51.419° ENE |
| 6 mins | 2026-02-07 01:40:38.763Z | 321.526° NNW | 2026-02-07 01:43:38.763Z | 67.44° ENE | 38.191° | 2026-02-07 01:46:38.763Z | 115.623° SE |
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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