STARLINK-35577, 66538
Orbit data source: Space-Track
STARLINK-35577, 66538 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Wed, 19 Nov 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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66538 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: 10 hours ago
TLE from 10 hours ago
0 STARLINK-35577
1 66538U 25265Y 26171.41113100 .00008761 00000-0 32743-3 0 9990
2 66538 43.0040 57.7896 0001420 283.0810 76.9883 15.27587580 32826Epoch: 2026-06-20T09:52Z
TLE epoch observation values (Epoch: 2026-06-20T09:52:01.718Z)
Latitude
-0.00003°
Longitude
1.15627°
Altitude
482.583 km
Speed
7.626 km/s
True Right ascension
03h 51m 09s
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
07:13:17
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
485.945 km
Perigee altitude
483.996 km
Semi-major axis
6,863.108 km
Eccentricity
0.00014
Inclination
43.004°
RAAN
57.7896°
Arg. of periapsis
283.081°
True anomaly
77.00415°
Mean anomaly
76.9883°
Eccentric anomaly
76.99623°
Mean motion
3.81735 °/min
Orbital period
94.31 mins
BSTAR
0.00032743
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Other satellites on launch #265 in the year 2025 (2025-11-19 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-35577 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 | 2026-06-20 21:06:32.845Z | 255.592° W | 2026-06-20 21:09:32.845Z | 276.916° WNW | 42.964° | 2026-06-20 21:13:32.845Z | 71.186° E |
| 6 mins | 2026-06-20 22:46:32.845Z | 289.2° WNW | 2026-06-20 22:49:32.845Z | 28.096° NE | 36.645° | 2026-06-20 22:52:32.845Z | 77.826° E |
| 6 mins | 2026-06-21 00:25:32.845Z | 287.991° WNW | 2026-06-21 00:28:32.845Z | 112.612° SE | 43.937° | 2026-06-21 00:31:32.845Z | 109.725° ESE |
| 4 mins | 2026-06-21 02:05:32.845Z | 244.707° WSW | 2026-06-21 02:06:32.845Z | 222.78° SW | 20.505° | 2026-06-21 02:09:32.845Z | 165.139° S |
| 5 mins | 2026-06-21 19:01:32.845Z | 191.073° SSW | 2026-06-21 19:03:32.845Z | 144.926° SSE | 23.755° | 2026-06-21 19:06:32.845Z | 89.975° 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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