STARLINK-5908, 55951
Orbit data source: Space-Track
STARLINK-5908, 55951 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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55951 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-5908
1 55951U 23037AP 26171.29262617 .00000640 00000-0 61379-4 0 9992
2 55951 69.9999 25.5772 0003090 271.7157 88.3648 14.98335397179352Epoch: 2026-06-20T07:01Z
TLE epoch observation values (Epoch: 2026-06-20T07:01:22.901Z)
Latitude
-0.00001°
Longitude
11.72244°
Altitude
574.402 km
Speed
7.574 km/s
True Right ascension
01h 42m 18s
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
21:38:38
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
572.134 km
Perigee altitude
567.84 km
Semi-major axis
6,948.124 km
Eccentricity
0.00031
Inclination
69.9999°
RAAN
25.5772°
Arg. of periapsis
271.7157°
True anomaly
88.40019°
Mean anomaly
88.3648°
Eccentric anomaly
88.3825°
Mean motion
3.7475 °/min
Orbital period
96.06 mins
BSTAR
0.000061379
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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-5908 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 | 2026-06-22 15:13:36.619Z | 195.176° SSW | 2026-06-22 15:17:36.619Z | 81.636° E | 42.918° | 2026-06-22 15:20:36.619Z | 30.329° NE |
| 6 mins | 2026-06-23 01:17:36.619Z | 315.562° NNW | 2026-06-23 01:19:36.619Z | 261.841° W | 38.061° | 2026-06-23 01:23:36.619Z | 174.268° 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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Click to sort rows by Secondary header in ascending order | Click to sort rows by Secondary name header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Owner header in ascending order | Click to sort rows by Obj. Type header in ascending order | Click to sort rows by Miss dist. header in ascending order | Click to sort rows by Rel. speed header in ascending order | Click to sort rows by Apr. angle header in ascending order | Click to sort rows by TCA header in descending order |
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