STARLINK-5599, 55766
Orbit data source: Space-Track
STARLINK-5599, 55766 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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55766 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-5599
1 55766U 23028AB 26171.43796797 -.00000273 00000-0 -15100-4 0 9998
2 55766 69.9998 325.3977 0003314 267.0628 93.0152 14.98335313181920Epoch: 2026-06-20T10:30Z
TLE epoch observation values (Epoch: 2026-06-20T10:30:40.432Z)
Latitude
-0.00002°
Longitude
-100.92337°
Altitude
574.585 km
Speed
7.574 km/s
True Right ascension
21h 41m 35s
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
21:30:14
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
572.29 km
Perigee altitude
567.685 km
Semi-major axis
6,948.125 km
Eccentricity
0.00033
Inclination
69.9998°
RAAN
325.3977°
Arg. of periapsis
267.0628°
True anomaly
93.05312°
Mean anomaly
93.0152°
Eccentric anomaly
93.03416°
Mean motion
3.7475 °/min
Orbital period
96.06 mins
BSTAR
-0.0000151
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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-5599 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 10:42:13.660Z | 162.442° S | 2026-06-22 10:45:13.660Z | 110.605° ESE | 25.138° | 2026-06-22 10:48:13.660Z | 53.62° ENE |
| 5 mins | 2026-06-22 12:21:13.660Z | 258.083° W | 2026-06-22 12:23:13.660Z | 293.598° NW | 22.049° | 2026-06-22 12:26:13.660Z | 350.345° N |
| 6 mins | 2026-06-22 20:45:13.660Z | 348.695° N | 2026-06-22 20:48:13.660Z | 99.306° ESE | 39.717° | 2026-06-22 20:51:13.660Z | 143.261° SSE |
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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