STARLINK-5929, 55959
Orbit data source: Space-Track
STARLINK-5929, 55959 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.
Focus sentinelFocus sentinel
Request partner network tasking
Focus sentinelFocus sentinel
Embed this page
Focus sentinelFocus sentinel
55959 intel report (Beta)
Focus sentinelFocus sentinel
Create New Watchlist
Focus sentinelFocus sentinel
Edit Public Description
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: 18 hours ago
TLE from 18 hours ago
0 STARLINK-5929
1 55959U 23037AX 25349.77338862 .00001248 00000-0 11238-3 0 9998
2 55959 69.9997 116.0268 0003148 271.6038 88.4761 14.98318097151901Epoch: 2025-12-15T18:33Z
TLE epoch observation values (Epoch: 2025-12-15T18:33:40.776Z)
Latitude
0.00001°
Longitude
112.93976°
Altitude
574.459 km
Speed
7.574 km/s
True Right ascension
07h 44m 06s
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
10:48:57
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
572.228 km
Perigee altitude
567.854 km
Semi-major axis
6,948.178 km
Eccentricity
0.00031
Inclination
69.9997°
RAAN
116.0268°
Arg. of periapsis
271.6038°
True anomaly
88.51216°
Mean anomaly
88.4761°
Eccentric anomaly
88.49413°
Mean motion
3.74746 °/min
Orbital period
96.07 mins
BSTAR
0.00011238
Loading maneuver chart data...
Computing Atmospheric mass density...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Other satellites on launch #37 in the year 2023 (2023-03-17 UTC)
Did you know?
You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.STARLINK-5929 Visibility forecast
Loading observer location...
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 | 2025-12-16 19:07:52.283Z | 350.146° N | 2025-12-16 19:11:52.283Z | 72.841° E | 33.828° | 2025-12-16 19:14:52.283Z | 129.848° SE |
| 5 mins | 2025-12-17 09:09:52.283Z | 147.809° SSE | 2025-12-17 09:11:52.283Z | 100.292° ESE | 26.134° | 2025-12-17 09:14:52.283Z | 49.209° ENE |
| 5 mins | 2025-12-17 10:47:52.283Z | 264.216° W | 2025-12-17 10:49:52.283Z | 302.318° NW | 21.497° | 2025-12-17 10:52:52.283Z | 353.493° N |
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 |
|---|
CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
Authenticating...
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 |
|---|