STARLINK-5557, 55770
Orbit data source: Space-Track
STARLINK-5557, 55770 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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55770 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-5557
1 55770U 23028AF 26171.44214523 .00000488 00000-0 48725-4 0 9991
2 55770 70.0000 325.4112 0003179 267.2731 92.8064 14.98326219181924Epoch: 2026-06-20T10:36Z
TLE epoch observation values (Epoch: 2026-06-20T10:36:41.347Z)
Latitude
-0.00007°
Longitude
-102.41781°
Altitude
574.6 km
Speed
7.574 km/s
True Right ascension
21h 41m 38s
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
21:27:24
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
572.225 km
Perigee altitude
567.807 km
Semi-major axis
6,948.153 km
Eccentricity
0.00032
Inclination
70°
RAAN
325.4112°
Arg. of periapsis
267.2731°
True anomaly
92.84278°
Mean anomaly
92.8064°
Eccentric anomaly
92.82459°
Mean motion
3.74748 °/min
Orbital period
96.06 mins
BSTAR
0.000048725
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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-5557 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 10:48:23.875Z | 166.805° S | 2026-06-22 10:51:23.875Z | 110.693° ESE | 28.282° | 2026-06-22 10:54:23.875Z | 50.169° ENE |
| 4 mins | 2026-06-22 12:28:23.875Z | 275.91° WNW | 2026-06-22 12:29:23.875Z | 294.811° NW | 19.753° | 2026-06-22 12:32:23.875Z | 348.129° N |
| 6 mins | 2026-06-22 20:51:23.875Z | 343.6° N | 2026-06-22 20:54:23.875Z | 115.279° SE | 41.774° | 2026-06-22 20:57:23.875Z | 148.743° 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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