STARLINK-35951, 66619
Orbit data source: Space-Track
STARLINK-35951, 66619 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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66619 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: 8 hours ago
TLE from 8 hours ago
0 STARLINK-35951
1 66619U 25271C 26037.07384122 .00008948 00000-0 31390-3 0 9998
2 66619 53.1572 286.9697 0001168 51.5463 308.5642 15.30196566 12722Epoch: 2026-02-06T01:46Z
TLE epoch observation values (Epoch: 2026-02-06T01:46:19.881Z)
Latitude
-0.00005°
Longitude
124.16988°
Altitude
475.626 km
Speed
7.629 km/s
True Right ascension
19h 07m 52s
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
12:08:00
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
476.283 km
Perigee altitude
474.682 km
Semi-major axis
6,853.619 km
Eccentricity
0.00012
Inclination
53.1572°
RAAN
286.9697°
Arg. of periapsis
51.5463°
True anomaly
308.55373°
Mean anomaly
308.5642°
Eccentric anomaly
308.55897°
Mean motion
3.82528 °/min
Orbital period
94.11 mins
BSTAR
0.0003139
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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-35951 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 | 2026-02-06 19:11:15.810Z | 223.52° SW | 2026-02-06 19:14:15.810Z | 183.439° SSW | 43.578° | 2026-02-06 19:17:15.810Z | 53.719° ENE |
| 4 mins | 2026-02-06 20:51:15.810Z | 304.499° NW | 2026-02-06 20:53:15.810Z | 347.65° N | 18.323° | 2026-02-06 20:55:15.810Z | 22.292° NNE |
| 5 mins | 2026-02-07 01:47:15.810Z | 320.068° NNW | 2026-02-07 01:49:15.810Z | 8.157° NNE | 41.07° | 2026-02-07 01:52:15.810Z | 117.333° 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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