STARLINK-35509, 66199
Orbit data source: Space-Track
STARLINK-35509, 66199 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Sun, 26 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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66199 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: 9 hours ago
TLE from 9 hours ago
0 STARLINK-35509
1 66199U 25243Y 26061.75312581 .00018037 00000-0 61967-3 0 9995
2 66199 53.1567 277.3344 0000879 73.2989 286.8108 15.30197998 19591Epoch: 2026-03-02T18:04Z
TLE epoch observation values (Epoch: 2026-03-02T18:04:30.069Z)
Latitude
-0.00006°
Longitude
-154.33295°
Altitude
475.946 km
Speed
7.629 km/s
True Right ascension
18h 29m 20s
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
07:11:07
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
476.08 km
Perigee altitude
474.876 km
Semi-major axis
6,853.615 km
Eccentricity
0.00009
Inclination
53.1567°
RAAN
277.3344°
Arg. of periapsis
73.2989°
True anomaly
286.80116°
Mean anomaly
286.8108°
Eccentric anomaly
286.80598°
Mean motion
3.82528 °/min
Orbital period
94.11 mins
BSTAR
0.00061967
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Other satellites on launch #243 in the year 2025 (2025-10-26 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-35509 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. |
|---|---|---|---|---|---|---|---|
| 5 mins | 2026-03-03 16:10:53.386Z | 187.573° SSW | 2026-03-03 16:12:53.386Z | 147.944° SSE | 25.839° | 2026-03-03 16:15:53.386Z | 75.849° E |
| 5 mins | 2026-03-03 17:48:53.386Z | 270.614° WNW | 2026-03-03 17:50:53.386Z | 315.612° NNW | 28.587° | 2026-03-03 17:53:53.386Z | 29.578° NE |
| 5 mins | 2026-03-03 22:45:53.386Z | 336.303° NNW | 2026-03-03 22:47:53.386Z | 21.361° NNE | 26.72° | 2026-03-03 22:50:53.386Z | 89.557° E |
| 5 mins | 2026-03-04 00:23:53.386Z | 283.496° WNW | 2026-03-04 00:25:53.386Z | 234.304° WSW | 29.567° | 2026-03-04 00:28:53.386Z | 164.5° S |
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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