STARLINK-5864, 55940
Orbit data source: Space-Track
STARLINK-5864, 55940 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Fri, 17 Mar 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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55940 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
11.087 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 2 days ago
TLE from 2 days ago
0 STARLINK-5864
1 55940U 23037AC 26171.32182681 .00000372 00000-0 38945-4 0 9991
2 55940 69.9998 25.6816 0002749 266.1990 93.8855 14.98334517179356Epoch: 2026-06-20T07:43Z
TLE epoch observation values (Epoch: 2026-06-20T07:43:25.836Z)
Latitude
0°
Longitude
1.28583°
Altitude
574.596 km
Speed
7.574 km/s
True Right ascension
01h 42m 43s
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
21:38:39
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
571.9 km
Perigee altitude
568.08 km
Semi-major axis
6,948.127 km
Eccentricity
0.00027
Inclination
69.9998°
RAAN
25.6816°
Arg. of periapsis
266.199°
True anomaly
93.91693°
Mean anomaly
93.8855°
Eccentric anomaly
93.90121°
Mean motion
3.7475 °/min
Orbital period
96.06 mins
BSTAR
0.000038945
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Other satellites on launch #37 in the year 2023 (2023-03-17 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-5864 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 14:20:37.146Z | 132.651° SE | 2026-06-22 14:22:37.146Z | 99.267° ESE | 16.199° | 2026-06-22 14:24:37.146Z | 68.239° E |
| 6 mins | 2026-06-22 15:57:37.146Z | 237.954° WSW | 2026-06-22 16:00:37.146Z | 309.052° NW | 31.675° | 2026-06-22 16:03:37.146Z | 5.079° NNE |
| 5 mins | 2026-06-23 00:22:37.146Z | 10.772° NNE | 2026-06-23 00:24:37.146Z | 63.952° ENE | 30.587° | 2026-06-23 00:27:37.146Z | 123.053° SE |
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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