STARLINK-35956, 66629 (Decayed)
Orbit data source: Space-Track
STARLINK-35956, 66629 was 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).
U.S. Space Forces-Space (S4S) has confirmed an anomalous debris event of STARLINK-35956 (INTLDES 2025-271, 66629), which likely occurred 18 Dec 25 at 0140 UTC. There is no assessed risk to the ISS. Analysis is ongoing. Please refer to SpaceX for additional information on this event.
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66629 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
USRelated business
Manufacturer
SpaceX/Seattle
Mission
Decayed 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: 3 weeks ago
TLE from 3 weeks ago
0 STARLINK-35956
1 66629U 25271N 26017.17102470 .20227591 12158-4 45861-2 0 9999
2 66629 53.1187 13.0932 0006003 18.6014 341.5247 16.29322999 4623Epoch: 2026-01-17T04:06Z
TLE epoch observation values (Epoch: 2026-01-17T04:06:16.534Z)
Latitude
-0.00002°
Longitude
-165.0755°
Altitude
191.551 km
Speed
7.795 km/s
True Right ascension
00h 52m 22s
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
07:37:31
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
198.579 km
Perigee altitude
190.688 km
Semi-major axis
6,572.771 km
Eccentricity
0.0006
Inclination
53.1187°
RAAN
13.0932°
Arg. of periapsis
18.6014°
True anomaly
341.50289°
Mean anomaly
341.5247°
Eccentric anomaly
341.51379°
Mean motion
4.07306 °/min
Orbital period
88.39 mins
BSTAR
0.0045861
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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-35956 Visibility
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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. |
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| This satellite is decayed. |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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