STARLINK-5816, 55778
Orbit data source: Space-Track
STARLINK-5816, 55778 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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55778 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-5816
1 55778U 23028AP 26171.41292088 .00000446 00000-0 45131-4 0 9990
2 55778 69.9995 325.3100 0002887 269.6996 90.3833 14.98329306181929Epoch: 2026-06-20T09:54Z
TLE epoch observation values (Epoch: 2026-06-20T09:54:36.364Z)
Latitude
0.00007°
Longitude
-91.9694°
Altitude
574.496 km
Speed
7.574 km/s
True Right ascension
21h 41m 14s
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
21:29:13
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
572.012 km
Perigee altitude
568 km
Semi-major axis
6,948.143 km
Eccentricity
0.00029
Inclination
69.9995°
RAAN
325.31°
Arg. of periapsis
269.6996°
True anomaly
90.41638°
Mean anomaly
90.3833°
Eccentric anomaly
90.39984°
Mean motion
3.74749 °/min
Orbital period
96.06 mins
BSTAR
0.000045131
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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-5816 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 11:43:12.984Z | 219.603° SW | 2026-06-22 11:46:12.984Z | 270.125° WNW | 38.937° | 2026-06-22 11:50:12.984Z | 14.586° NNE |
| 5 mins | 2026-06-22 20:09:12.984Z | 23.897° NE | 2026-06-22 20:11:12.984Z | 69° E | 23.055° | 2026-06-22 20:14:12.984Z | 114.524° SE |
| 5 mins | 2026-06-22 21:47:12.984Z | 291.145° WNW | 2026-06-22 21:49:12.984Z | 247.43° WSW | 23.643° | 2026-06-22 21:52:12.984Z | 198.784° SSW |
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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