STARLINK-6135, 56539
Orbit data source: Space-Track
STARLINK-6135, 56539 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Sun, 14 May 2023 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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56539 intel report (Beta)
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Identifier
Orbit
Country
USRelated business
Manufacturer
SpaceX/Seattle
Mission
Operational Commercial Communications
Bus & Motor
STARLINK, Unknown motor
Mass
305 kg wet, ~290 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 1 Pan, 10.1 m
Radar Cross Section
11.087 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 3 days ago
TLE from 3 days ago
0 STARLINK-6135
1 56539U 23065AN 26169.97768049 .00000985 00000-0 45332-4 0 9991
2 56539 43.0028 14.9073 0001554 268.3368 91.7306 15.27580019171926Epoch: 2026-06-18T23:27Z
TLE epoch observation values (Epoch: 2026-06-18T23:27:51.594Z)
Latitude
0.00001°
Longitude
115.72907°
Altitude
482.857 km
Speed
7.626 km/s
True Right ascension
00h 59m 37s
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
21:24:59
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
486.06 km
Perigee altitude
483.927 km
Semi-major axis
6,863.131 km
Eccentricity
0.00016
Inclination
43.0028°
RAAN
14.9073°
Arg. of periapsis
268.3368°
True anomaly
91.7484°
Mean anomaly
91.7306°
Eccentric anomaly
91.7395°
Mean motion
3.81733 °/min
Orbital period
94.31 mins
BSTAR
0.000045332
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Other satellites on launch #65 in the year 2023 (2023-05-14 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-6135 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 | 2026-06-22 15:32:59.091Z | 209.734° SW | 2026-06-22 15:35:59.091Z | 134.841° SE | 28.886° | 2026-06-22 15:38:59.091Z | 83.732° E |
| 6 mins | 2026-06-22 17:11:59.091Z | 265.129° W | 2026-06-22 17:13:59.091Z | 300.159° NW | 41.541° | 2026-06-22 17:17:59.091Z | 70.597° E |
| 6 mins | 2026-06-22 18:50:59.091Z | 291.117° WNW | 2026-06-22 18:53:59.091Z | 29.343° NE | 37.436° | 2026-06-22 18:56:59.091Z | 81.315° E |
| 6 mins | 2026-06-22 20:29:59.091Z | 284.594° WNW | 2026-06-22 20:32:59.091Z | 157.352° SSE | 42.837° | 2026-06-22 20:35:59.091Z | 117.61° 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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