STARLINK-3513, 51756
Orbit data source: Space-Track
STARLINK-3513, 51756 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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51756 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-3513
1 51756U 22016AU 26171.40243902 -.00000230 00000-0 36610-5 0 9993
2 51756 53.1606 207.9106 0001246 85.6804 274.4330 15.08829753239214Epoch: 2026-06-20T09:39Z
TLE epoch observation values (Epoch: 2026-06-20T09:39:30.731Z)
Latitude
0°
Longitude
154.41498°
Altitude
540.6 km
Speed
7.593 km/s
True Right ascension
13h 51m 38s
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
21:31:46
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
540.891 km
Perigee altitude
539.167 km
Semi-major axis
6,918.166 km
Eccentricity
0.00012
Inclination
53.1606°
RAAN
207.9106°
Arg. of periapsis
85.6804°
True anomaly
274.41876°
Mean anomaly
274.433°
Eccentric anomaly
274.42588°
Mean motion
3.77187 °/min
Orbital period
95.44 mins
BSTAR
0.000003661
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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-3513 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. |
|---|---|---|---|---|---|---|---|
| 8 mins | 2026-06-22 11:25:44.842Z | 312.058° NW | 2026-06-22 11:29:44.842Z | 42.539° NE | 44.43° | 2026-06-22 11:33:44.842Z | 126.467° SE |
| 6 mins | 2026-06-23 04:37:44.842Z | 237.413° WSW | 2026-06-23 04:39:44.842Z | 267.209° W | 42.871° | 2026-06-23 04:43:44.842Z | 47.049° ENE |
| 4 mins | 2026-06-23 06:18:44.842Z | 315.285° NNW | 2026-06-23 06:19:44.842Z | 334.121° NNW | 18.033° | 2026-06-23 06:22:44.842Z | 24.374° NE |
| 4 mins | 2026-06-23 09:39:44.842Z | 351.834° N | 2026-06-23 09:41:44.842Z | 33.362° NE | 20.057° | 2026-06-23 09:43:44.842Z | 67.511° 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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