STARLINK-35918, 66643
Orbit data source: Space-Track
STARLINK-35918, 66643 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Sun, 23 Nov 2025 UTC via an FALCON 9 launch vehicle from the Air Force Western Test Range (AFWTR). 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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66643 intel report (Beta)
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Edit Public Description
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-35918
1 66643U 25271AC 25355.25001157 .00073497 00000-0 18335-2 0 9995
2 66643 53.1605 146.5124 0001213 90.8844 342.9922 15.39557857 5618Epoch: 2025-12-21T06:00Z
TLE epoch observation values (Epoch: 2025-12-21T06:00:00.999Z)
Latitude
50.39838°
Longitude
30.66923°
Altitude
452.532 km
Speed
7.648 km/s
True Right ascension
14h 02m 57s
True Declination
50° 13' 18"
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
13:57:21
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
448.501 km
Perigee altitude
446.845 km
Semi-major axis
6,825.81 km
Eccentricity
0.00012
Inclination
53.1605°
RAAN
146.5124°
Arg. of periapsis
90.8844°
True anomaly
342.98813°
Mean anomaly
342.9922°
Eccentric anomaly
342.99017°
Mean motion
3.84868 °/min
Orbital period
93.54 mins
BSTAR
0.0018335
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Other satellites on launch #271 in the year 2025 (2025-11-23 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-35918 Visibility forecast
Loading observer location...
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 | 2025-12-21 20:14:06.465Z | 292.942° NW | 2025-12-21 20:16:06.465Z | 189.489° SSW | 39.061° | 2025-12-21 20:19:06.465Z | 143.662° SSE |
| 5 mins | 2025-12-22 13:03:06.465Z | 246.349° WSW | 2025-12-22 13:05:06.465Z | 8.897° NNE | 40.482° | 2025-12-22 13:08:06.465Z | 45.548° ENE |
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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Click to sort rows by Secondary header in ascending order | Click to sort rows by Secondary name header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Owner header in ascending order | Click to sort rows by Obj. Type header in ascending order | Click to sort rows by Miss dist. header in ascending order | Click to sort rows by Rel. speed header in ascending order | Click to sort rows by Apr. angle header in ascending order | Click to sort rows by TCA header in descending order |
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