STARLINK-5911, 55950
Orbit data source: Space-Track
STARLINK-5911, 55950 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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55950 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: 3 days ago
TLE from 3 days ago
0 STARLINK-5911
1 55950U 23037AN 26170.91687221 .00000095 00000-0 15787-4 0 9997
2 55950 70.0003 6.7952 0002945 267.0690 93.0132 14.98330276179788Epoch: 2026-06-19T22:00Z
TLE epoch observation values (Epoch: 2026-06-19T22:00:17.758Z)
Latitude
-0.00006°
Longitude
128.58221°
Altitude
574.587 km
Speed
7.574 km/s
True Right ascension
00h 27m 10s
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
21:35:04
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
572.049 km
Perigee altitude
567.957 km
Semi-major axis
6,948.14 km
Eccentricity
0.00029
Inclination
70.0003°
RAAN
6.7952°
Arg. of periapsis
267.069°
True anomaly
93.0469°
Mean anomaly
93.0132°
Eccentric anomaly
93.03005°
Mean motion
3.74749 °/min
Orbital period
96.06 mins
BSTAR
0.000015787
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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-5911 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 14:14:03.154Z | 211.988° SW | 2026-06-22 14:17:03.154Z | 261.898° W | 42.939° | 2026-06-22 14:21:03.154Z | 19.547° NNE |
| 4 mins | 2026-06-22 22:40:03.154Z | 29.307° NE | 2026-06-22 22:41:03.154Z | 48.726° ENE | 19.972° | 2026-06-22 22:44:03.154Z | 101.061° ESE |
| 6 mins | 2026-06-23 00:17:03.154Z | 307.598° NW | 2026-06-23 00:20:03.154Z | 242.617° WSW | 27.86° | 2026-06-23 00:23:03.154Z | 191.673° SSW |
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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