STARLINK-5556, 55385
Orbit data source: Space-Track
STARLINK-5556, 55385 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Thu, 26 Jan 2023 UTC via an FALCON 9 launch vehicle from the Air Force Eastern Test Range (AFETR). 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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55385 intel report (Beta)
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Edit Public Description
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: 1 day ago
TLE from 1 day ago
0 STARLINK-5556
1 55385U 23013BG 25348.25275470 .00001671 00000-0 13873-3 0 9999
2 55385 43.0046 57.0303 0001227 274.8358 85.2344 15.02535596158711Epoch: 2025-12-14T06:03Z
TLE epoch observation values (Epoch: 2025-12-14T06:03:58.006Z)
Latitude
-0.00002°
Longitude
-117.12974°
Altitude
558.789 km
Speed
7.584 km/s
True Right ascension
03h 48m 07s
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
15:11:07
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
561.855 km
Perigee altitude
560.153 km
Semi-major axis
6,939.141 km
Eccentricity
0.00012
Inclination
43.0046°
RAAN
57.0303°
Arg. of periapsis
274.8358°
True anomaly
85.24841°
Mean anomaly
85.2344°
Eccentric anomaly
85.24141°
Mean motion
3.75478 °/min
Orbital period
95.88 mins
BSTAR
0.00013873
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Other satellites on launch #13 in the year 2023 (2023-01-26 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-5556 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 | 2025-12-16 07:45:15.075Z | 222.688° SW | 2025-12-16 07:48:15.075Z | 129.213° SE | 37.433° | 2025-12-16 07:51:15.075Z | 79.298° E |
| 6 mins | 2025-12-16 09:26:15.075Z | 276.617° WNW | 2025-12-16 09:28:15.075Z | 330.315° NNW | 41.162° | 2025-12-16 09:32:15.075Z | 71.418° E |
| 6 mins | 2025-12-16 11:07:15.075Z | 295.665° NW | 2025-12-16 11:09:15.075Z | 351.833° N | 41.119° | 2025-12-16 11:13:15.075Z | 89.663° E |
| 6 mins | 2025-12-16 12:47:15.075Z | 278.546° WNW | 2025-12-16 12:50:15.075Z | 199.903° SSW | 38.933° | 2025-12-16 12:53:15.075Z | 132.965° SE |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
Click to sort rows by RSO header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Type header in ascending order | Click to sort rows by Inclination Δ header in ascending order | Click to sort rows by RAAN Δ header in ascending order | Click to sort rows by Coplanar Angle header in ascending order | Click to sort rows by SMA Δ header in ascending order | Click to sort rows by Orbital period header in ascending order | Click to sort rows by <5km Md TCA header in descending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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