STARLINK-31544, 59399
Orbit data source: Space-Track
STARLINK-31544, 59399 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Fri, 05 Apr 2024 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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Identifier
Orbit
Country
USRelated business
Manufacturer
SpaceX/Seattle
Mission
Operational Commercial Communications
Bus & Motor
STARLINK V2M, Unknown motor
Mass
730 kg wet, ~700 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 2 Pan, 17.7 m
Radar Cross Section
33.884 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 2 days ago
TLE from 2 days ago
0 STARLINK-31544
1 59399U 24064B 26171.35550852 .00000413 00000-0 24528-4 0 9994
2 59399 42.9998 196.6765 0001353 270.3819 89.6878 15.27578321124925Epoch: 2026-06-20T08:31Z
TLE epoch observation values (Epoch: 2026-06-20T08:31:55.936Z)
Latitude
0.00003°
Longitude
160.12214°
Altitude
482.825 km
Speed
7.626 km/s
True Right ascension
13h 06m 42s
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
21:31:37
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
485.928 km
Perigee altitude
484.071 km
Semi-major axis
6,863.136 km
Eccentricity
0.00014
Inclination
42.9998°
RAAN
196.6765°
Arg. of periapsis
270.3819°
True anomaly
89.7033°
Mean anomaly
89.6878°
Eccentric anomaly
89.69555°
Mean motion
3.81733 °/min
Orbital period
94.31 mins
BSTAR
0.000024528
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Other satellites on launch #64 in the year 2024 (2024-04-05 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-31544 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. |
|---|---|---|---|---|---|---|---|
| 5 mins | 2026-06-23 04:14:36.548Z | 210.278° SW | 2026-06-23 04:16:36.548Z | 140.053° SSE | 34.502° | 2026-06-23 04:19:36.548Z | 81.305° E |
| 6 mins | 2026-06-23 05:52:36.548Z | 270.783° WNW | 2026-06-23 05:55:36.548Z | 19.289° NNE | 40.492° | 2026-06-23 05:58:36.548Z | 70.037° E |
| 5 mins | 2026-06-23 07:32:36.548Z | 298.231° NW | 2026-06-23 07:34:36.548Z | 16.071° NNE | 39.499° | 2026-06-23 07:37:36.548Z | 84.536° E |
| 5 mins | 2026-06-23 09:11:36.548Z | 275.363° WNW | 2026-06-23 09:13:36.548Z | 194.773° SSW | 40.621° | 2026-06-23 09:16:36.548Z | 126.431° SE |
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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