STARLINK-35646, 66859
Orbit data source: Space-Track
STARLINK-35646, 66859 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Tue, 02 Dec 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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66859 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: 15 hours ago
TLE from 15 hours ago
0 STARLINK-35646
1 66859U 25281M 26171.20683720 .00015901 00000-0 58559-3 0 9998
2 66859 43.0009 124.5581 0001136 288.8045 71.2684 15.27608667 31868Epoch: 2026-06-20T04:57Z
TLE epoch observation values (Epoch: 2026-06-20T04:57:50.734Z)
Latitude
0.00004°
Longitude
141.67197°
Altitude
482.489 km
Speed
7.626 km/s
True Right ascension
08h 18m 13s
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
07:14:01
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
485.688 km
Perigee altitude
484.129 km
Semi-major axis
6,863.045 km
Eccentricity
0.00011
Inclination
43.0009°
RAAN
124.5581°
Arg. of periapsis
288.8045°
True anomaly
71.28073°
Mean anomaly
71.2684°
Eccentric anomaly
71.27456°
Mean motion
3.8174 °/min
Orbital period
94.3 mins
BSTAR
0.00058559
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Other satellites on launch #281 in the year 2025 (2025-12-02 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-35646 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 23:59:16.839Z | 213.439° SW | 2026-06-21 00:02:16.839Z | 158.866° S | 28.25° | 2026-06-21 00:05:16.839Z | 89.444° E |
| 5 mins | 2026-06-21 01:39:16.839Z | 265.178° W | 2026-06-21 01:41:16.839Z | 336.409° NNW | 43.514° | 2026-06-21 01:44:16.839Z | 69.279° E |
| 5 mins | 2026-06-21 03:18:16.839Z | 293.477° NW | 2026-06-21 03:20:16.839Z | 346.856° N | 37.928° | 2026-06-21 03:23:16.839Z | 77.384° E |
| 6 mins | 2026-06-21 04:57:16.839Z | 284.494° WNW | 2026-06-21 04:59:16.839Z | 253.303° W | 43.021° | 2026-06-21 05:03:16.839Z | 115.724° SE |
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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