STARLINK-35557, 66237
Orbit data source: Space-Track
STARLINK-35557, 66237 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Wed, 29 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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66237 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: 11 hours ago
TLE from 11 hours ago
0 STARLINK-35557
1 66237U 25245D 26171.40193513 .00018106 00000-0 54554-3 0 9997
2 66237 53.1571 164.5818 0001132 96.6509 263.4623 15.34409844 37012Epoch: 2026-06-20T09:38Z
TLE epoch observation values (Epoch: 2026-06-20T09:38:47.195Z)
Latitude
0.00004°
Longitude
111.2681°
Altitude
463.663 km
Speed
7.636 km/s
True Right ascension
10h 58m 19s
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
07:16:28
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
463.706 km
Perigee altitude
462.157 km
Semi-major axis
6,841.068 km
Eccentricity
0.00011
Inclination
53.1571°
RAAN
164.5818°
Arg. of periapsis
96.6509°
True anomaly
263.44941°
Mean anomaly
263.4623°
Eccentric anomaly
263.45586°
Mean motion
3.83581 °/min
Orbital period
93.85 mins
BSTAR
0.00054554
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Other satellites on launch #245 in the year 2025 (2025-10-29 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-35557 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 01:25:43.375Z | 186.468° SSW | 2026-06-21 01:28:43.375Z | 127.204° SE | 22.99° | 2026-06-21 01:30:43.375Z | 83.498° E |
| 4 mins | 2026-06-21 03:04:43.375Z | 280.033° WNW | 2026-06-21 03:05:43.375Z | 310.731° NW | 30.596° | 2026-06-21 03:08:43.375Z | 31.35° NE |
| 4 mins | 2026-06-21 08:00:43.375Z | 351.049° N | 2026-06-21 08:01:43.375Z | 15.57° NNE | 23.488° | 2026-06-21 08:04:43.375Z | 83.123° E |
| 5 mins | 2026-06-21 09:37:43.375Z | 288.112° WNW | 2026-06-21 09:39:43.375Z | 233.988° WSW | 33.429° | 2026-06-21 09:42:43.375Z | 157.711° S |
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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