STARLINK-5903, 55996
Orbit data source: Space-Track
STARLINK-5903, 55996 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Fri, 24 Mar 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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55996 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-5903
1 55996U 23042L 26171.35493203 -.00000147 00000-0 41721-5 0 9994
2 55996 43.0035 199.5645 0001535 270.6144 89.4531 15.27573591178560Epoch: 2026-06-20T08:31Z
TLE epoch observation values (Epoch: 2026-06-20T08:31:06.127Z)
Latitude
-0.00007°
Longitude
163.21815°
Altitude
482.834 km
Speed
7.626 km/s
True Right ascension
13h 18m 15s
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
00:39:41
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
486.066 km
Perigee altitude
483.959 km
Semi-major axis
6,863.15 km
Eccentricity
0.00015
Inclination
43.0035°
RAAN
199.5645°
Arg. of periapsis
270.6144°
True anomaly
89.47069°
Mean anomaly
89.4531°
Eccentric anomaly
89.46189°
Mean motion
3.81731 °/min
Orbital period
94.31 mins
BSTAR
0.0000041721
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Other satellites on launch #42 in the year 2023 (2023-03-24 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-5903 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 | 2026-06-23 04:12:09.403Z | 213.794° SW | 2026-06-23 04:15:09.403Z | 143.495° SSE | 30.588° | 2026-06-23 04:18:09.403Z | 84.461° E |
| 6 mins | 2026-06-23 05:51:09.403Z | 265.732° W | 2026-06-23 05:54:09.403Z | 23.976° NE | 41.76° | 2026-06-23 05:57:09.403Z | 69.987° E |
| 5 mins | 2026-06-23 07:31:09.403Z | 297.837° NW | 2026-06-23 07:33:09.403Z | 13.747° NNE | 38.61° | 2026-06-23 07:36:09.403Z | 81.067° E |
| 5 mins | 2026-06-23 09:10:09.403Z | 280.767° WNW | 2026-06-23 09:12:09.403Z | 192.82° SSW | 43.296° | 2026-06-23 09:15:09.403Z | 119.862° 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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