STARLINK-5257, 55316
Orbit data source: Space-Track
STARLINK-5257, 55316 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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55316 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-5257
1 55316U 23010AZ 26171.22261002 .00000223 00000-0 26451-4 0 9997
2 55316 69.9995 105.8316 0003378 265.2069 94.8704 14.98330380190005Epoch: 2026-06-20T05:20Z
TLE epoch observation values (Epoch: 2026-06-20T05:20:33.505Z)
Latitude
-0.00007°
Longitude
117.25164°
Altitude
574.679 km
Speed
7.574 km/s
True Right ascension
07h 03m 19s
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
21:32:33
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
572.35 km
Perigee altitude
567.656 km
Semi-major axis
6,948.14 km
Eccentricity
0.00034
Inclination
69.9995°
RAAN
105.8316°
Arg. of periapsis
265.2069°
True anomaly
94.90897°
Mean anomaly
94.8704°
Eccentric anomaly
94.88968°
Mean motion
3.74749 °/min
Orbital period
96.06 mins
BSTAR
0.000026451
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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-5257 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 19:57:32.549Z | 161.403° S | 2026-06-22 20:00:32.549Z | 105.392° ESE | 25.663° | 2026-06-22 20:03:32.549Z | 51.341° ENE |
| 5 mins | 2026-06-22 21:36:32.549Z | 261.097° W | 2026-06-22 21:38:32.549Z | 298.155° NW | 21.894° | 2026-06-22 21:41:32.549Z | 352.1° N |
| 6 mins | 2026-06-23 06:00:32.549Z | 349.102° N | 2026-06-23 06:02:32.549Z | 38.015° NE | 41.044° | 2026-06-23 06:06:32.549Z | 144.686° 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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