STARLINK-35931, 66519
Orbit data source: Space-Track
STARLINK-35931, 66519 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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66519 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: 20 hours ago
TLE from 20 hours ago
0 STARLINK-35931
1 66519U 25265D 26171.02652029 .00015202 00000-0 56044-3 0 9992
2 66519 43.0021 60.0694 0001639 275.1752 84.8913 15.27601193 32768Epoch: 2026-06-20T00:38Z
TLE epoch observation values (Epoch: 2026-06-20T00:38:11.353Z)
Latitude
0.00003°
Longitude
142.27507°
Altitude
482.661 km
Speed
7.626 km/s
True Right ascension
04h 00m 16s
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
07:13:15
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
486.055 km
Perigee altitude
483.806 km
Semi-major axis
6,863.067 km
Eccentricity
0.00016
Inclination
43.0021°
RAAN
60.0694°
Arg. of periapsis
275.1752°
True anomaly
84.91001°
Mean anomaly
84.8913°
Eccentric anomaly
84.90065°
Mean motion
3.81738 °/min
Orbital period
94.31 mins
BSTAR
0.00056044
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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-35931 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 | 2026-06-20 21:18:30.771Z | 260.776° W | 2026-06-20 21:21:30.771Z | 335.641° NNW | 43.754° | 2026-06-20 21:24:30.771Z | 69.448° E |
| 5 mins | 2026-06-20 22:58:30.771Z | 293.255° NW | 2026-06-20 23:00:30.771Z | 346.952° N | 37.861° | 2026-06-20 23:03:30.771Z | 76.817° E |
| 6 mins | 2026-06-21 00:37:30.771Z | 285.183° WNW | 2026-06-21 00:39:30.771Z | 258.387° W | 43.222° | 2026-06-21 00:43:30.771Z | 114.617° SE |
| 4 mins | 2026-06-21 19:13:30.771Z | 189.966° SSW | 2026-06-21 19:14:30.771Z | 164.705° S | 26.385° | 2026-06-21 19:17:30.771Z | 92.665° ESE |
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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