STARLINK-35540, 66151
Orbit data source: Space-Track
STARLINK-35540, 66151 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Sat, 25 Oct 2025 UTC via an FALCON 9 launch vehicle from the Air Force Eastern Test Range (AFETR). 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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66151 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: 1 day ago
TLE from 1 day ago
0 STARLINK-35540
1 66151U 25240F 26170.79562624 .00024822 00000-0 74299-3 0 9991
2 66151 53.1592 306.9612 0001035 74.7078 285.4038 15.34415692 37645Epoch: 2026-06-19T19:05Z
TLE epoch observation values (Epoch: 2026-06-19T19:05:42.107Z)
Latitude
-0.00008°
Longitude
112.51622°
Altitude
463.37 km
Speed
7.636 km/s
True Right ascension
20h 27m 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
07:13:21
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
463.622 km
Perigee altitude
462.206 km
Semi-major axis
6,841.051 km
Eccentricity
0.0001
Inclination
53.1592°
RAAN
306.9612°
Arg. of periapsis
74.7078°
True anomaly
285.39237°
Mean anomaly
285.4038°
Eccentric anomaly
285.39808°
Mean motion
3.83583 °/min
Orbital period
93.85 mins
BSTAR
0.00074299
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Other satellites on launch #240 in the year 2025 (2025-10-25 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-35540 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 | 2026-06-21 10:19:36.419Z | 169.047° S | 2026-06-21 10:21:36.419Z | 133.428° SE | 16.782° | 2026-06-21 10:23:36.419Z | 94.033° ESE |
| 5 mins | 2026-06-21 11:57:36.419Z | 261.553° W | 2026-06-21 11:59:36.419Z | 351.874° N | 36.418° | 2026-06-21 12:02:36.419Z | 41.339° NE |
| 5 mins | 2026-06-21 16:52:36.419Z | 336.464° NNW | 2026-06-21 16:55:36.419Z | 36.928° NE | 19.642° | 2026-06-21 16:57:36.419Z | 73.483° E |
| 5 mins | 2026-06-21 18:30:36.419Z | 300.253° NW | 2026-06-21 18:32:36.419Z | 261.492° W | 39.632° | 2026-06-21 18:35:36.419Z | 145.505° 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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