STARLINK-5502, 55644
Orbit data source: Space-Track
STARLINK-5502, 55644 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Fri, 17 Feb 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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55644 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-5502
1 55644U 23021S 26171.45836977 -.00000308 00000-0 -17976-4 0 9995
2 55644 69.9988 285.3972 0002973 262.2436 97.8385 14.98337204184180Epoch: 2026-06-20T11:00Z
TLE epoch observation values (Epoch: 2026-06-20T11:00:03.148Z)
Latitude
-0.00006°
Longitude
-148.28864°
Altitude
574.74 km
Speed
7.574 km/s
True Right ascension
19h 01m 35s
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
21:39:20
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
572.048 km
Perigee altitude
567.916 km
Semi-major axis
6,948.119 km
Eccentricity
0.0003
Inclination
69.9988°
RAAN
285.3972°
Arg. of periapsis
262.2436°
True anomaly
97.87225°
Mean anomaly
97.8385°
Eccentric anomaly
97.85537°
Mean motion
3.74751 °/min
Orbital period
96.06 mins
BSTAR
-0.000017976
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Other satellites on launch #21 in the year 2023 (2023-02-17 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-5502 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 18:01:18.383Z | 347.082° N | 2026-06-22 18:04:18.383Z | 38.131° NE | 38.026° | 2026-06-22 18:08:18.383Z | 139.437° SSE |
| 6 mins | 2026-06-23 08:02:18.383Z | 164.64° S | 2026-06-23 08:04:18.383Z | 121.457° SE | 30.816° | 2026-06-23 08:08:18.383Z | 42.136° NE |
| 4 mins | 2026-06-23 09:41:18.383Z | 273.596° WNW | 2026-06-23 09:43:18.383Z | 309.327° NW | 18.121° | 2026-06-23 09:45:18.383Z | 342.641° N |
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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