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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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, Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 3 days ago
TLE from 3 days ago
0 STARLINK-35940
1 66617U 25271A 26171.29148830 .00011004 00000-0 38305-3 0 9993
2 66617 53.1596 23.4932 0001676 79.9474 280.1716 15.30203460 33274Epoch: 2026-06-20T06:59Z
TLE epoch observation values (Epoch: 2026-06-20T06:59:44.589Z)
Latitude
0.00001°
Longitude
10.04921°
Altitude
475.902 km
Speed
7.629 km/s
True Right ascension
01h 33m 58s
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
10:16:08
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
476.61 km
Perigee altitude
474.313 km
Semi-major axis
6,853.598 km
Eccentricity
0.00017
Inclination
53.1596°
RAAN
23.4932°
Arg. of periapsis
79.9474°
True anomaly
280.1527°
Mean anomaly
280.1716°
Eccentric anomaly
280.16215°
Mean motion
3.8253 °/min
Orbital period
94.11 mins
BSTAR
0.00038305
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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. |
|---|---|---|---|---|---|---|---|
| 5 mins | 2026-06-22 23:48:01.986Z | 285.266° WNW | 2026-06-22 23:51:01.986Z | 210.888° SW | 26.892° | 2026-06-22 23:53:01.986Z | 170.616° S |
| 4 mins | 2026-06-23 15:07:01.986Z | 167.061° S | 2026-06-23 15:08:01.986Z | 140.972° SSE | 24.867° | 2026-06-23 15:11:01.986Z | 75.378° E |
| 5 mins | 2026-06-23 16:44:01.986Z | 271.011° WNW | 2026-06-23 16:46:01.986Z | 322.783° NNW | 30.127° | 2026-06-23 16:49:01.986Z | 32.324° NE |
| 5 mins | 2026-06-23 21:41:01.986Z | 340.16° N | 2026-06-23 21:43:01.986Z | 28.669° NE | 25.914° | 2026-06-23 21:46:01.986Z | 89.803° E |
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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