STARLINK-5289, 55278
Orbit data source: Space-Track
STARLINK-5289, 55278 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Thu, 19 Jan 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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55278 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
13.562 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 2 days ago
TLE from 2 days ago
0 STARLINK-5289
1 55278U 23010K 26171.33990722 -.00000136 00000-0 -36033-5 0 9997
2 55278 69.9991 145.5676 0003818 264.2904 95.7820 14.98329554188157Epoch: 2026-06-20T08:09Z
TLE epoch observation values (Epoch: 2026-06-20T08:09:27.983Z)
Latitude
-0.00002°
Longitude
114.64506°
Altitude
574.749 km
Speed
7.574 km/s
True Right ascension
09h 42m 16s
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
21:31:43
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
572.658 km
Perigee altitude
567.353 km
Semi-major axis
6,948.143 km
Eccentricity
0.00038
Inclination
69.9991°
RAAN
145.5676°
Arg. of periapsis
264.2904°
True anomaly
95.82553°
Mean anomaly
95.782°
Eccentric anomaly
95.80376°
Mean motion
3.74749 °/min
Orbital period
96.06 mins
BSTAR
-0.0000036033
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Other satellites on launch #10 in the year 2023 (2023-01-19 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-5289 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 22:46:42.134Z | 169.515° S | 2026-06-22 22:49:42.134Z | 103.632° ESE | 31.243° | 2026-06-22 22:52:42.134Z | 45.372° ENE |
| 4 mins | 2026-06-23 00:26:42.134Z | 281.338° WNW | 2026-06-23 00:27:42.134Z | 299.53° NW | 18.072° | 2026-06-23 00:30:42.134Z | 348.555° N |
| 6 mins | 2026-06-23 08:49:42.134Z | 339.108° N | 2026-06-23 08:51:42.134Z | 2.497° NNE | 44.031° | 2026-06-23 08:55:42.134Z | 153.919° 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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