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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Edit Public Description
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: 23 hours ago
TLE from 23 hours ago
0 STARLINK-5709
1 55621U 23020BE 25340.70783365 -.00000122 00000-0 60802-5 0 9996
2 55621 43.0025 136.7962 0001386 261.5777 98.4909 15.02530789155080Epoch: 2025-12-06T16:59Z
TLE epoch observation values (Epoch: 2025-12-06T16:59:16.827Z)
Latitude
0.00004°
Longitude
166.24443°
Altitude
559.016 km
Speed
7.584 km/s
True Right ascension
09h 07m 11s
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
14:22:24
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
561.981 km
Perigee altitude
560.057 km
Semi-major axis
6,939.156 km
Eccentricity
0.00014
Inclination
43.0025°
RAAN
136.7962°
Arg. of periapsis
261.5777°
True anomaly
98.50661°
Mean anomaly
98.4909°
Eccentric anomaly
98.49875°
Mean motion
3.75477 °/min
Orbital period
95.88 mins
BSTAR
0.0000060802
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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. |
|---|---|---|---|---|---|---|---|
| 7 mins | 2025-12-07 17:18:07.907Z | 290.058° WNW | 2025-12-07 17:21:07.907Z | 355.108° N | 40.7° | 2025-12-07 17:25:07.907Z | 87.625° E |
| 7 mins | 2025-12-07 18:59:07.907Z | 280.342° WNW | 2025-12-07 19:02:07.907Z | 196.676° SSW | 40.701° | 2025-12-07 19:06:07.907Z | 125.737° SE |
| 6 mins | 2025-12-08 13:54:07.907Z | 231.367° WSW | 2025-12-08 13:57:07.907Z | 118.706° SE | 40.276° | 2025-12-08 14:00:07.907Z | 76.468° E |
| 6 mins | 2025-12-08 15:35:07.907Z | 281.527° WNW | 2025-12-08 15:37:07.907Z | 333.848° NNW | 40.069° | 2025-12-08 15:41:07.907Z | 72.457° E |
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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