STARLINK-35603, 66141
Orbit data source: Space-Track
STARLINK-35603, 66141 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Wed, 22 Oct 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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66141 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: 23 hours ago
TLE from 23 hours ago
0 STARLINK-35603
1 66141U 25237AD 25344.69657414 .00045986 00000-0 11515-2 0 9994
2 66141 53.1609 96.6465 0001072 80.7524 279.3602 15.39651928 8934Epoch: 2025-12-10T16:43Z
TLE epoch observation values (Epoch: 2025-12-10T16:43:04.005Z)
Latitude
-0.00004°
Longitude
126.21659°
Altitude
447.922 km
Speed
7.645 km/s
True Right ascension
06h 26m 35s
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
14:28:49
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
448.127 km
Perigee altitude
446.663 km
Semi-major axis
6,825.532 km
Eccentricity
0.00011
Inclination
53.1609°
RAAN
96.6465°
Arg. of periapsis
80.7524°
True anomaly
279.34808°
Mean anomaly
279.3602°
Eccentric anomaly
279.35414°
Mean motion
3.84892 °/min
Orbital period
93.53 mins
BSTAR
0.0011515
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Other satellites on launch #237 in the year 2025 (2025-10-22 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-35603 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 | 2025-12-11 16:33:47.730Z | 323.739° NNW | 2025-12-11 16:36:47.730Z | 41.052° NE | 34.312° | 2025-12-11 16:39:47.730Z | 106.916° ESE |
| 5 mins | 2025-12-12 09:23:47.730Z | 187.96° SSW | 2025-12-12 09:25:47.730Z | 128.585° SE | 30.049° | 2025-12-12 09:28:47.730Z | 66.647° ENE |
| 4 mins | 2025-12-12 11:01:47.730Z | 295° NW | 2025-12-12 11:02:47.730Z | 323.427° NNW | 25.031° | 2025-12-12 11:05:47.730Z | 29.226° NE |
| 4 mins | 2025-12-12 15:56:47.730Z | 352.783° N | 2025-12-12 15:57:47.730Z | 24.376° NE | 27.971° | 2025-12-12 16:00:47.730Z | 94.459° ESE |
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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