STARLINK-3505, 51750
Orbit data source: Space-Track
STARLINK-3505, 51750 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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51750 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-3505
1 51750U 22016AN 26171.37395456 .00000097 00000-0 24161-4 0 9992
2 51750 53.1596 208.0477 0001101 87.3143 272.7975 15.08836341239200Epoch: 2026-06-20T08:58Z
TLE epoch observation values (Epoch: 2026-06-20T08:58:29.673Z)
Latitude
-0°
Longitude
164.83456°
Altitude
540.609 km
Speed
7.593 km/s
True Right ascension
13h 52m 11s
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
21:33:25
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
540.77 km
Perigee altitude
539.247 km
Semi-major axis
6,918.146 km
Eccentricity
0.00011
Inclination
53.1596°
RAAN
208.0477°
Arg. of periapsis
87.3143°
True anomaly
272.7849°
Mean anomaly
272.7975°
Eccentric anomaly
272.7912°
Mean motion
3.77189 °/min
Orbital period
95.44 mins
BSTAR
0.000024161
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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-3505 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 10:43:24.393Z | 324.316° NNW | 2026-06-22 10:46:24.393Z | 13.847° NNE | 30.262° | 2026-06-22 10:50:24.393Z | 98.995° ESE |
| 5 mins | 2026-06-22 12:24:24.393Z | 273.459° WNW | 2026-06-22 12:26:24.393Z | 221.166° SW | 28.093° | 2026-06-22 12:29:24.393Z | 167.225° S |
| 5 mins | 2026-06-23 03:55:24.393Z | 193.775° SSW | 2026-06-23 03:57:24.393Z | 137.647° SSE | 35.023° | 2026-06-23 04:00:24.393Z | 66.432° ENE |
| 6 mins | 2026-06-23 05:34:24.393Z | 277.937° WNW | 2026-06-23 05:37:24.393Z | 345.272° N | 26.089° | 2026-06-23 05:40:24.393Z | 33.352° NE |
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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