STARLINK-5598, 55421
Orbit data source: Space-Track
STARLINK-5598, 55421 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Tue, 31 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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55421 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-5598
1 55421U 23014AG 26171.44053319 .00000681 00000-0 64911-4 0 9993
2 55421 69.9993 185.3666 0003700 267.1316 92.9420 14.98320774186955Epoch: 2026-06-20T10:34Z
TLE epoch observation values (Epoch: 2026-06-20T10:34:22.067Z)
Latitude
0°
Longitude
118.11953°
Altitude
574.641 km
Speed
7.574 km/s
True Right ascension
12h 21m 27s
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
23:07:38
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
572.604 km
Perigee altitude
567.462 km
Semi-major axis
6,948.17 km
Eccentricity
0.00037
Inclination
69.9993°
RAAN
185.3666°
Arg. of periapsis
267.1316°
True anomaly
92.98434°
Mean anomaly
92.942°
Eccentric anomaly
92.96317°
Mean motion
3.74746 °/min
Orbital period
96.06 mins
BSTAR
0.000064911
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Other satellites on launch #14 in the year 2023 (2023-01-31 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-5598 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. |
|---|---|---|---|---|---|---|---|
| 4 mins | 2026-06-22 12:50:21.849Z | 286.375° WNW | 2026-06-22 12:52:21.849Z | 252.954° W | 16.394° | 2026-06-22 12:54:21.849Z | 221.508° SW |
| 5 mins | 2026-06-23 01:12:21.849Z | 146.294° SSE | 2026-06-23 01:14:21.849Z | 103.885° ESE | 23.943° | 2026-06-23 01:17:21.849Z | 52.521° ENE |
| 5 mins | 2026-06-23 02:50:21.849Z | 259.899° W | 2026-06-23 02:52:21.849Z | 299.421° NW | 23.354° | 2026-06-23 02:55:21.849Z | 354.182° N |
| 6 mins | 2026-06-23 11:14:21.849Z | 352.688° N | 2026-06-23 11:16:21.849Z | 46.343° ENE | 39.758° | 2026-06-23 11:20:21.849Z | 141.943° 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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