STARLINK-5544, 55757
Orbit data source: Space-Track
STARLINK-5544, 55757 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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55757 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-5544
1 55757U 23028S 26171.44653852 .00000375 00000-0 39223-4 0 9996
2 55757 69.9994 345.3095 0002770 269.4619 90.6223 14.98332005181433Epoch: 2026-06-20T10:43Z
TLE epoch observation values (Epoch: 2026-06-20T10:43:00.928Z)
Latitude
0.00003°
Longitude
-84.1054°
Altitude
574.495 km
Speed
7.574 km/s
True Right ascension
23h 01m 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
21:32:05
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
571.923 km
Perigee altitude
568.073 km
Semi-major axis
6,948.135 km
Eccentricity
0.00028
Inclination
69.9994°
RAAN
345.3095°
Arg. of periapsis
269.4619°
True anomaly
90.65404°
Mean anomaly
90.6223°
Eccentric anomaly
90.63817°
Mean motion
3.74749 °/min
Orbital period
96.06 mins
BSTAR
0.000039223
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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-5544 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 12:31:03.937Z | 189.518° SSW | 2026-06-22 12:34:03.937Z | 135.012° SSE | 40.85° | 2026-06-22 12:38:03.937Z | 32.24° NE |
| 6 mins | 2026-06-22 22:34:03.937Z | 323.612° NNW | 2026-06-22 22:37:03.937Z | 231.537° WSW | 40.547° | 2026-06-22 22:40:03.937Z | 171.858° S |
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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Click to sort rows by Secondary header in ascending order | Click to sort rows by Secondary name header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Owner header in ascending order | Click to sort rows by Obj. Type header in ascending order | Click to sort rows by Miss dist. header in ascending order | Click to sort rows by Rel. speed header in ascending order | Click to sort rows by Apr. angle header in ascending order | Click to sort rows by TCA header in descending order |
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