STARLINK-35955, 66635
Orbit data source: Space-Track
STARLINK-35955, 66635 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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66635 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: 12 hours ago
TLE from 12 hours ago
0 STARLINK-35955
1 66635U 25271U 25355.13010559 .00030162 00000-0 76072-3 0 9994
2 66635 53.1604 147.3353 0001014 89.6852 270.4269 15.39633709 5503Epoch: 2025-12-21T03:07Z
TLE epoch observation values (Epoch: 2025-12-21T03:07:21.122Z)
Latitude
-0.00005°
Longitude
10.55028°
Altitude
448.09 km
Speed
7.645 km/s
True Right ascension
09h 49m 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
13:58:17
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
448.141 km
Perigee altitude
446.757 km
Semi-major axis
6,825.586 km
Eccentricity
0.0001
Inclination
53.1604°
RAAN
147.3353°
Arg. of periapsis
89.6852°
True anomaly
270.41528°
Mean anomaly
270.4269°
Eccentric anomaly
270.42109°
Mean motion
3.84887 °/min
Orbital period
93.53 mins
BSTAR
0.00076072
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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-35955 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 | 2025-12-21 19:11:01.590Z | 335.539° NNW | 2025-12-21 19:13:01.590Z | 29.117° NE | 29.488° | 2025-12-21 19:16:01.590Z | 97.724° ESE |
| 4 mins | 2025-12-21 20:49:01.590Z | 263.62° W | 2025-12-21 20:50:01.590Z | 237.089° WSW | 23.765° | 2025-12-21 20:53:01.590Z | 172.332° S |
| 4 mins | 2025-12-22 12:01:01.590Z | 166.174° S | 2025-12-22 12:02:01.590Z | 139.216° SSE | 24.053° | 2025-12-22 12:05:01.590Z | 74.477° E |
| 4 mins | 2025-12-22 13:38:01.590Z | 281.695° WNW | 2025-12-22 13:39:01.590Z | 310.285° NW | 28.4° | 2025-12-22 13:42:01.590Z | 29.721° NE |
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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