STARLINK-3446, 51747
Orbit data source: Space-Track
STARLINK-3446, 51747 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Mon, 21 Feb 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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51747 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: 2 days ago
TLE from 2 days ago
0 STARLINK-3446
1 51747U 22016AK 26171.36568303 -.00000349 00000-0 -38239-5 0 9994
2 51747 53.1588 218.1225 0001085 85.7822 274.3293 15.08827124239061Epoch: 2026-06-20T08:46Z
TLE epoch observation values (Epoch: 2026-06-20T08:46:35.013Z)
Latitude
-0.00007°
Longitude
177.89522°
Altitude
540.617 km
Speed
7.593 km/s
True Right ascension
14h 32m 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
21:34:25
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
540.788 km
Perigee altitude
539.286 km
Semi-major axis
6,918.174 km
Eccentricity
0.00011
Inclination
53.1588°
RAAN
218.1225°
Arg. of periapsis
85.7822°
True anomaly
274.3169°
Mean anomaly
274.3293°
Eccentric anomaly
274.3231°
Mean motion
3.77186 °/min
Orbital period
95.44 mins
BSTAR
-0.0000038239
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Other satellites on launch #16 in the year 2022 (2022-02-21 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-3446 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 | 2026-06-22 12:09:23.736Z | 312.167° NW | 2026-06-22 12:12:23.736Z | 67.966° E | 44.735° | 2026-06-22 12:15:23.736Z | 127.567° SE |
| 6 mins | 2026-06-23 05:20:23.736Z | 240.437° WSW | 2026-06-23 05:22:23.736Z | 280.75° WNW | 42.704° | 2026-06-23 05:26:23.736Z | 46.19° ENE |
| 4 mins | 2026-06-23 07:01:23.736Z | 316.836° NNW | 2026-06-23 07:02:23.736Z | 335.477° NNW | 17.648° | 2026-06-23 07:05:23.736Z | 24.825° NE |
| 4 mins | 2026-06-23 10:22:23.736Z | 352.429° N | 2026-06-23 10:24:23.736Z | 35.008° NE | 20.536° | 2026-06-23 10:26:23.736Z | 69.242° E |
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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