STARLINK-5510, 55647
Orbit data source: Space-Track
STARLINK-5510, 55647 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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55647 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: 7 hours ago
TLE from 7 hours ago
0 STARLINK-5510
1 55647U 23021V 26091.51329046 -.00000175 00000-0 -68336-5 0 9999
2 55647 69.9985 126.7710 0003475 272.5665 87.5096 14.98333612172219Epoch: 2026-04-01T12:19Z
TLE epoch observation values (Epoch: 2026-04-01T12:19:08.295Z)
Latitude
-0.00006°
Longitude
112.11137°
Altitude
574.364 km
Speed
7.574 km/s
True Right ascension
08h 27m 05s
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
01:04:09
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
572.408 km
Perigee altitude
567.579 km
Semi-major axis
6,948.13 km
Eccentricity
0.00035
Inclination
69.9985°
RAAN
126.771°
Arg. of periapsis
272.5665°
True anomaly
87.54938°
Mean anomaly
87.5096°
Eccentric anomaly
87.52949°
Mean motion
3.7475 °/min
Orbital period
96.06 mins
BSTAR
-0.0000068336
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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-5510 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 | 2026-04-02 02:51:57.845Z | 152.527° SSE | 2026-04-02 02:54:57.845Z | 103.06° ESE | 20.23° | 2026-04-02 02:57:57.845Z | 55.795° ENE |
| 5 mins | 2026-04-02 04:30:57.845Z | 255.201° W | 2026-04-02 04:32:57.845Z | 300.59° NW | 26.968° | 2026-04-02 04:35:57.845Z | 358.342° N |
| 6 mins | 2026-04-02 12:54:57.845Z | 0.209° NNE | 2026-04-02 12:56:57.845Z | 54.028° ENE | 35.8° | 2026-04-02 13:00:57.845Z | 135.616° 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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