STARLINK-3387, 51125
Orbit data source: Space-Track
STARLINK-3387, 51125 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Wed, 19 Jan 2022 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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51125 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
297 kg wet, ~275 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 1 Pan, 10.1 m
Radar Cross Section
13.562 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 11 hours ago
TLE from 11 hours ago
0 STARLINK-3387
1 51125U 22005X 26094.25303163 -.00000026 00000-0 16476-4 0 9994
2 51125 53.2160 184.3738 0001604 85.4250 274.6926 15.08845185232583Epoch: 2026-04-04T06:04Z
TLE epoch observation values (Epoch: 2026-04-04T06:04:21.932Z)
Latitude
0.00001°
Longitude
-99.29304°
Altitude
540.534 km
Speed
7.593 km/s
True Right ascension
12h 17m 29s
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
22:31:29
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
541.082 km
Perigee altitude
538.863 km
Semi-major axis
6,918.11 km
Eccentricity
0.00016
Inclination
53.216°
RAAN
184.3738°
Arg. of periapsis
85.425°
True anomaly
274.67428°
Mean anomaly
274.6926°
Eccentric anomaly
274.68344°
Mean motion
3.77192 °/min
Orbital period
95.44 mins
BSTAR
0.000016476
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Other satellites on launch #5 in the year 2022 (2022-01-19 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-3387 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 | 2026-04-05 07:39:54.846Z | 183.366° SSW | 2026-04-05 07:42:54.846Z | 121.108° SE | 25.245° | 2026-04-05 07:45:54.846Z | 71.713° E |
| 5 mins | 2026-04-05 09:19:54.846Z | 272.524° WNW | 2026-04-05 09:21:54.846Z | 332.217° NNW | 33.135° | 2026-04-05 09:24:54.846Z | 34.435° NE |
| 5 mins | 2026-04-05 14:20:54.846Z | 338.332° N | 2026-04-05 14:22:54.846Z | 23.413° NE | 28.118° | 2026-04-05 14:25:54.846Z | 88.186° E |
| 6 mins | 2026-04-05 15:59:54.846Z | 288.187° WNW | 2026-04-05 16:02:54.846Z | 210.632° SW | 31.649° | 2026-04-05 16:05:54.846Z | 159.741° 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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