STARLINK-35634, 66173
Orbit data source: Space-Track
STARLINK-35634, 66173 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Sat, 25 Oct 2025 UTC via an FALCON 9 launch vehicle from the Air Force Eastern Test Range (AFETR). 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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66173 intel report (Beta)
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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, Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 22 hours ago
TLE from 22 hours ago
0 STARLINK-35634
1 66173U 25240AD 26170.93431070 .00017595 00000-0 53049-3 0 9990
2 66173 53.1597 306.3917 0001027 74.6756 285.4360 15.34409707 37669Epoch: 2026-06-19T22:25Z
TLE epoch observation values (Epoch: 2026-06-19T22:25:24.444Z)
Latitude
-0.00003°
Longitude
61.88367°
Altitude
463.389 km
Speed
7.636 km/s
True Right ascension
20h 25m 34s
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
07:17:45
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
463.634 km
Perigee altitude
462.229 km
Semi-major axis
6,841.068 km
Eccentricity
0.0001
Inclination
53.1597°
RAAN
306.3917°
Arg. of periapsis
74.6756°
True anomaly
285.42466°
Mean anomaly
285.436°
Eccentric anomaly
285.43033°
Mean motion
3.83581 °/min
Orbital period
93.85 mins
BSTAR
0.00053049
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Other satellites on launch #240 in the year 2025 (2025-10-25 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-35634 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 | 2026-06-21 10:32:00.006Z | 178.539° S | 2026-06-21 10:34:00.006Z | 140.438° SSE | 21.009° | 2026-06-21 10:37:00.006Z | 79.103° E |
| 5 mins | 2026-06-21 12:10:00.006Z | 268.603° W | 2026-06-21 12:12:00.006Z | 333.885° NNW | 32.744° | 2026-06-21 12:15:00.006Z | 36.529° NE |
| 4 mins | 2026-06-21 17:06:00.006Z | 343.925° N | 2026-06-21 17:08:00.006Z | 31.281° NE | 22.913° | 2026-06-21 17:10:00.006Z | 75.341° E |
| 5 mins | 2026-06-21 18:44:00.006Z | 284.307° WNW | 2026-06-21 18:46:00.006Z | 205.532° SW | 34.833° | 2026-06-21 18:49:00.006Z | 151.749° SSE |
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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