STARLINK-35661, 66387
Orbit data source: Space-Track
STARLINK-35661, 66387 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Sat, 08 Nov 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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66387 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: 1 day ago
TLE from 1 day ago
0 STARLINK-35661
1 66387U 25257H 26170.53725912 .00022892 00000-0 68621-3 0 9990
2 66387 53.1604 102.0540 0001279 90.8672 269.2477 15.34416880 35357Epoch: 2026-06-19T12:53Z
TLE epoch observation values (Epoch: 2026-06-19T12:53:39.187Z)
Latitude
-0.00006°
Longitude
0.87586°
Altitude
463.566 km
Speed
7.636 km/s
True Right ascension
06h 48m 12s
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
07:18:07
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
463.785 km
Perigee altitude
462.035 km
Semi-major axis
6,841.047 km
Eccentricity
0.00013
Inclination
53.1604°
RAAN
102.054°
Arg. of periapsis
90.8672°
True anomaly
269.23305°
Mean anomaly
269.2477°
Eccentric anomaly
269.24037°
Mean motion
3.83583 °/min
Orbital period
93.85 mins
BSTAR
0.00068621
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Other satellites on launch #257 in the year 2025 (2025-11-08 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-35661 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 | 2026-06-20 21:54:21.690Z | 225.321° WSW | 2026-06-20 21:57:21.690Z | 68.336° E | 42.859° | 2026-06-20 22:00:21.690Z | 51.664° ENE |
| 6 mins | 2026-06-21 04:28:21.690Z | 317.924° NNW | 2026-06-21 04:31:21.690Z | 84.537° E | 40.019° | 2026-06-21 04:34:21.690Z | 121.209° 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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Click to sort rows by Secondary header in ascending order | Click to sort rows by Secondary name header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Owner header in ascending order | Click to sort rows by Obj. Type header in ascending order | Click to sort rows by Miss dist. header in ascending order | Click to sort rows by Rel. speed header in ascending order | Click to sort rows by Apr. angle header in ascending order | Click to sort rows by TCA header in descending order |
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