STARLINK-35939, 66584
Orbit data source: Space-Track
STARLINK-35939, 66584 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Fri, 21 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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66584 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: 15 hours ago
TLE from 15 hours ago
0 STARLINK-35939
1 66584U 25268AD 26171.21271273 .00021800 00000-0 79863-3 0 9991
2 66584 43.0023 127.6844 0001753 265.3625 94.7026 15.27609893 33644Epoch: 2026-06-20T05:06Z
TLE epoch observation values (Epoch: 2026-06-20T05:06:18.379Z)
Latitude
-0.00007°
Longitude
142.67718°
Altitude
482.834 km
Speed
7.626 km/s
True Right ascension
08h 30m 44s
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
07:18:14
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
486.107 km
Perigee altitude
483.701 km
Semi-major axis
6,863.041 km
Eccentricity
0.00018
Inclination
43.0023°
RAAN
127.6844°
Arg. of periapsis
265.3625°
True anomaly
94.72262°
Mean anomaly
94.7026°
Eccentric anomaly
94.71261°
Mean motion
3.81741 °/min
Orbital period
94.3 mins
BSTAR
0.00079863
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Other satellites on launch #268 in the year 2025 (2025-11-21 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-35939 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 00:08:29.291Z | 202.785° SW | 2026-06-21 00:10:29.291Z | 159.92° S | 26.833° | 2026-06-21 00:13:29.291Z | 91.13° ESE |
| 5 mins | 2026-06-21 01:47:29.291Z | 262.817° W | 2026-06-21 01:49:29.291Z | 326.185° NNW | 43.822° | 2026-06-21 01:52:29.291Z | 69.463° E |
| 5 mins | 2026-06-21 03:26:29.291Z | 292.675° NW | 2026-06-21 03:28:29.291Z | 344.011° N | 37.631° | 2026-06-21 03:31:29.291Z | 76.152° E |
| 6 mins | 2026-06-21 05:05:29.291Z | 285.711° WNW | 2026-06-21 05:07:29.291Z | 265.002° W | 42.979° | 2026-06-21 05:11:29.291Z | 113.907° 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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