STARLINK-3451, 51749
Orbit data source: Space-Track
STARLINK-3451, 51749 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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51749 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-3451
1 51749U 22016AM 26171.40889713 -.00000236 00000-0 32326-5 0 9997
2 51749 53.1585 218.0628 0001033 83.6506 276.4603 15.08832924239067Epoch: 2026-06-20T09:48Z
TLE epoch observation values (Epoch: 2026-06-20T09:48:48.712Z)
Latitude
0°
Longitude
162.23589°
Altitude
540.576 km
Speed
7.593 km/s
True Right ascension
14h 32m 15s
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
21:33:14
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
540.734 km
Perigee altitude
539.305 km
Semi-major axis
6,918.156 km
Eccentricity
0.0001
Inclination
53.1585°
RAAN
218.0628°
Arg. of periapsis
83.6506°
True anomaly
276.44854°
Mean anomaly
276.4603°
Eccentric anomaly
276.45442°
Mean motion
3.77188 °/min
Orbital period
95.44 mins
BSTAR
0.0000032326
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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-3451 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 11:34:13.146Z | 322.221° NNW | 2026-06-22 11:37:13.146Z | 12.636° NNE | 33.685° | 2026-06-22 11:41:13.146Z | 105.219° ESE |
| 5 mins | 2026-06-22 13:15:13.146Z | 267.037° W | 2026-06-22 13:17:13.146Z | 220.835° SW | 23.564° | 2026-06-22 13:20:13.146Z | 173.058° S |
| 5 mins | 2026-06-23 04:46:13.146Z | 203.155° SW | 2026-06-23 04:48:13.146Z | 134.253° SE | 39.691° | 2026-06-23 04:51:13.146Z | 60.937° ENE |
| 4 mins | 2026-06-23 06:26:13.146Z | 297.822° NW | 2026-06-23 06:28:13.146Z | 345.402° N | 23.582° | 2026-06-23 06:30:13.146Z | 22.504° 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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