STARLINK-5811, 55787
Orbit data source: Space-Track
STARLINK-5811, 55787 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Fri, 03 Mar 2023 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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55787 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: 2 days ago
TLE from 2 days ago
0 STARLINK-5811
1 55787U 23028AY 26171.43774397 -.00000008 00000-0 71123-5 0 9996
2 55787 69.9992 305.5185 0003070 268.1408 91.9400 14.98327815182411Epoch: 2026-06-20T10:30Z
TLE epoch observation values (Epoch: 2026-06-20T10:30:21.079Z)
Latitude
0.00005°
Longitude
-120.72168°
Altitude
574.559 km
Speed
7.574 km/s
True Right ascension
20h 22m 04s
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
21:27:03
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
572.144 km
Perigee altitude
567.878 km
Semi-major axis
6,948.148 km
Eccentricity
0.00031
Inclination
69.9992°
RAAN
305.5185°
Arg. of periapsis
268.1408°
True anomaly
91.97516°
Mean anomaly
91.94°
Eccentric anomaly
91.95758°
Mean motion
3.74748 °/min
Orbital period
96.06 mins
BSTAR
0.0000071123
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Other satellites on launch #28 in the year 2023 (2023-03-03 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-5811 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. |
|---|---|---|---|---|---|---|---|
| 7 mins | 2026-06-22 10:43:03.529Z | 233.411° WSW | 2026-06-22 10:47:03.529Z | 312.303° NW | 30.094° | 2026-06-22 10:50:03.529Z | 4.584° NNE |
| 6 mins | 2026-06-22 19:08:03.529Z | 358.537° N | 2026-06-22 19:11:03.529Z | 68.44° E | 31.877° | 2026-06-22 19:14:03.529Z | 126.056° SE |
| 5 mins | 2026-06-23 09:09:03.529Z | 146.211° SSE | 2026-06-23 09:11:03.529Z | 102.879° ESE | 24.254° | 2026-06-23 09:14:03.529Z | 51.843° ENE |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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