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
Expand to show TLE details & historyLast TLE update: 15 hours ago
TLE from 15 hours ago
0 STARLINK-35940
1 66617U 25271A 26082.26745255 .00034448 00000-0 11699-2 0 9998
2 66617 53.1585 77.0003 0001478 81.1618 278.9550 15.30196317 19649Epoch: 2026-03-23T06:25Z
TLE epoch observation values (Epoch: 2026-03-23T06:25:07.900Z)
Latitude
-0.00002°
Longitude
159.95546°
Altitude
475.968 km
Speed
7.629 km/s
True Right ascension
05h 08m 00s
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
02:10:35
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
476.496 km
Perigee altitude
474.47 km
Semi-major axis
6,853.62 km
Eccentricity
0.00015
Inclination
53.1585°
RAAN
77.0003°
Arg. of periapsis
81.1618°
True anomaly
278.93827°
Mean anomaly
278.955°
Eccentric anomaly
278.94663°
Mean motion
3.82528 °/min
Orbital period
94.11 mins
BSTAR
0.0011699
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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. |
|---|---|---|---|---|---|---|---|
| 6 mins | 2026-03-24 01:22:36.077Z | 186.875° SSW | 2026-03-24 01:25:36.077Z | 131.032° SE | 23.013° | 2026-03-24 01:28:36.077Z | 74.531° E |
| 5 mins | 2026-03-24 03:01:36.077Z | 272.092° WNW | 2026-03-24 03:03:36.077Z | 336.567° NNW | 31.814° | 2026-03-24 03:06:36.077Z | 36.056° NE |
| 4 mins | 2026-03-24 07:58:36.077Z | 346.622° N | 2026-03-24 08:00:36.077Z | 38.247° NE | 24.199° | 2026-03-24 08:02:36.077Z | 80.106° E |
| 5 mins | 2026-03-24 09:36:36.077Z | 281.709° WNW | 2026-03-24 09:38:36.077Z | 210.462° SW | 33.287° | 2026-03-24 09:41:36.077Z | 155.035° SSE |
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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