STARLINK-35743, 66578
Orbit data source: Space-Track
STARLINK-35743, 66578 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Fri, 21 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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66578 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: 13 hours ago
TLE from 13 hours ago
0 STARLINK-35743
1 66578U 25268X 26171.30381126 -.00018941 00000-0 -68114-3 0 9994
2 66578 42.9999 127.5183 0000927 298.4347 61.6411 15.27551112 33654Epoch: 2026-06-20T07:17Z
TLE epoch observation values (Epoch: 2026-06-20T07:17:29.292Z)
Latitude
-0.00005°
Longitude
109.62584°
Altitude
482.609 km
Speed
7.626 km/s
True Right ascension
08h 30m 04s
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
07:18:09
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
485.717 km
Perigee altitude
484.445 km
Semi-major axis
6,863.218 km
Eccentricity
0.00009
Inclination
42.9999°
RAAN
127.5183°
Arg. of periapsis
298.4347°
True anomaly
61.65045°
Mean anomaly
61.6411°
Eccentric anomaly
61.64577°
Mean motion
3.81726 °/min
Orbital period
94.31 mins
BSTAR
-0.00068114
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Other satellites on launch #268 in the year 2025 (2025-11-21 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-35743 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 | 2026-06-21 00:47:23.536Z | 224.805° SW | 2026-06-21 00:49:23.536Z | 168.872° S | 38.728° | 2026-06-21 00:52:23.536Z | 80.435° E |
| 5 mins | 2026-06-21 02:26:23.536Z | 278.882° WNW | 2026-06-21 02:28:23.536Z | 337.215° NNW | 39.87° | 2026-06-21 02:31:23.536Z | 68.414° E |
| 6 mins | 2026-06-21 04:05:23.536Z | 294° NW | 2026-06-21 04:07:23.536Z | 337.185° NNW | 39.448° | 2026-06-21 04:11:23.536Z | 90.482° ESE |
| 5 mins | 2026-06-21 05:44:23.536Z | 274.406° WNW | 2026-06-21 05:46:23.536Z | 226.662° WSW | 36.027° | 2026-06-21 05:49:23.536Z | 136.549° 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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