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: 7 hours ago
TLE from 7 hours ago
0 STARLINK-35940
1 66617U 25271A 26128.24905017 .00024168 00000-0 82487-3 0 9993
2 66617 53.1582 223.4209 0001538 100.0771 260.0403 15.30223573 26685Epoch: 2026-05-08T05:58Z
TLE epoch observation values (Epoch: 2026-05-08T05:58:37.934Z)
Latitude
-0.00006°
Longitude
-92.32075°
Altitude
476.227 km
Speed
7.629 km/s
True Right ascension
14h 53m 41s
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
20:52:57
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
476.455 km
Perigee altitude
474.347 km
Semi-major axis
6,853.538 km
Eccentricity
0.00015
Inclination
53.1582°
RAAN
223.4209°
Arg. of periapsis
100.0771°
True anomaly
260.02294°
Mean anomaly
260.0403°
Eccentric anomaly
260.03162°
Mean motion
3.82535 °/min
Orbital period
94.11 mins
BSTAR
0.00082487
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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. |
|---|---|---|---|---|---|---|---|
| 4 mins | 2026-05-08 14:14:58.958Z | 341.104° N | 2026-05-08 14:16:58.958Z | 15.637° NNE | 15.911° | 2026-05-08 14:18:58.958Z | 53.114° ENE |
| 5 mins | 2026-05-08 15:53:58.958Z | 319.522° NNW | 2026-05-08 15:55:58.958Z | 86.254° E | 42.434° | 2026-05-08 15:58:58.958Z | 123.979° SE |
| 5 mins | 2026-05-09 08:48:58.958Z | 220.163° SW | 2026-05-09 08:50:58.958Z | 149.845° SSE | 44.041° | 2026-05-09 08:53:58.958Z | 53.885° ENE |
| 4 mins | 2026-05-09 10:27:58.958Z | 307.72° NW | 2026-05-09 10:28:58.958Z | 328.913° NNW | 18.739° | 2026-05-09 10:31:58.958Z | 24.644° NE |
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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