STARLINK-35553, 66120
Orbit data source: Space-Track
STARLINK-35553, 66120 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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66120 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: 12 hours ago
TLE from 12 hours ago
0 STARLINK-35553
1 66120U 25237G 26171.45521998 .00025237 00000-0 75535-3 0 9991
2 66120 53.1600 281.6364 0001145 72.3598 287.7529 15.34408056 38352Epoch: 2026-06-20T10:55Z
TLE epoch observation values (Epoch: 2026-06-20T10:55:31.006Z)
Latitude
-0.00006°
Longitude
-150.91243°
Altitude
463.342 km
Speed
7.636 km/s
True Right ascension
18h 46m 32s
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
10:20:30
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
463.719 km
Perigee altitude
462.153 km
Semi-major axis
6,841.073 km
Eccentricity
0.00011
Inclination
53.16°
RAAN
281.6364°
Arg. of periapsis
72.3598°
True anomaly
287.7404°
Mean anomaly
287.7529°
Eccentric anomaly
287.74665°
Mean motion
3.83581 °/min
Orbital period
93.85 mins
BSTAR
0.00075535
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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-35553 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. |
|---|---|---|---|---|---|---|---|
| 4 mins | 2026-06-21 08:58:15.027Z | 168.084° S | 2026-06-21 09:00:15.027Z | 126.926° SE | 18.93° | 2026-06-21 09:02:15.027Z | 87.621° E |
| 5 mins | 2026-06-21 10:35:15.027Z | 258.119° W | 2026-06-21 10:37:15.027Z | 308.373° NW | 34.836° | 2026-06-21 10:40:15.027Z | 35.409° NE |
| 5 mins | 2026-06-21 15:31:15.027Z | 338.651° N | 2026-06-21 15:33:15.027Z | 18.101° NNE | 21.148° | 2026-06-21 15:36:15.027Z | 78.946° E |
| 5 mins | 2026-06-21 17:09:15.027Z | 294.612° NW | 2026-06-21 17:11:15.027Z | 235.315° WSW | 38.666° | 2026-06-21 17:14:15.027Z | 149.257° 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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