STARLINK-5709, 55621
Orbit data source: Space-Track
STARLINK-5709, 55621 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Sun, 12 Feb 2023 UTC via an FALCON 9 launch vehicle from the Air Force Eastern Test Range (AFETR). 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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55621 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-5709
1 55621U 23020BE 26171.22592119 .00000267 00000-0 19222-4 0 9999
2 55621 43.0061 134.9220 0001668 282.8013 77.2653 15.27576833184720Epoch: 2026-06-20T05:25Z
TLE epoch observation values (Epoch: 2026-06-20T05:25:19.590Z)
Latitude
0.00002°
Longitude
145.1468°
Altitude
482.583 km
Speed
7.626 km/s
True Right ascension
08h 59m 41s
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
00:56:29
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
486.147 km
Perigee altitude
483.858 km
Semi-major axis
6,863.14 km
Eccentricity
0.00017
Inclination
43.0061°
RAAN
134.922°
Arg. of periapsis
282.8013°
True anomaly
77.28394°
Mean anomaly
77.2653°
Eccentric anomaly
77.27462°
Mean motion
3.81732 °/min
Orbital period
94.31 mins
BSTAR
0.000019222
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Other satellites on launch #20 in the year 2023 (2023-02-12 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-5709 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 23:30:54.517Z | 202.986° SW | 2026-06-22 23:33:54.517Z | 148.812° SSE | 23.086° | 2026-06-22 23:36:54.517Z | 91.774° ESE |
| 5 mins | 2026-06-23 01:10:54.517Z | 255.961° W | 2026-06-23 01:12:54.517Z | 46.574° ENE | 44.231° | 2026-06-23 01:15:54.517Z | 71.139° E |
| 5 mins | 2026-06-23 02:49:54.517Z | 294.244° NW | 2026-06-23 02:51:54.517Z | 5.329° NNE | 37.942° | 2026-06-23 02:54:54.517Z | 75.355° E |
| 5 mins | 2026-06-23 04:28:54.517Z | 289.077° WNW | 2026-06-23 04:30:54.517Z | 320.466° NNW | 44.916° | 2026-06-23 04:33:54.517Z | 107.773° ESE |
| 4 mins | 2026-06-23 06:07:54.517Z | 252.516° W | 2026-06-23 06:09:54.517Z | 207.047° SW | 21.701° | 2026-06-23 06:11:54.517Z | 167.823° 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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