STARLINK-3549, 51891
Orbit data source: Space-Track
STARLINK-3549, 51891 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Thu, 03 Mar 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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51891 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-3549
1 51891U 22022AR 26171.41668980 .00016994 00000-0 74244-3 0 9994
2 51891 53.1601 257.4218 0001599 95.3686 124.0898 15.22228106 5783Epoch: 2026-06-20T10:00Z
TLE epoch observation values (Epoch: 2026-06-20T10:00:01.998Z)
Latitude
-30.78853°
Longitude
45.13747°
Altitude
509.187 km
Speed
7.609 km/s
True Right ascension
06h 55m 06s
True Declination
-30° 37' 55"
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
21:31:49
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
500.477 km
Perigee altitude
498.277 km
Semi-major axis
6,877.514 km
Eccentricity
0.00016
Inclination
53.1601°
RAAN
257.4218°
Arg. of periapsis
95.3686°
True anomaly
124.10497°
Mean anomaly
124.0898°
Eccentric anomaly
124.09739°
Mean motion
3.80536 °/min
Orbital period
94.6 mins
BSTAR
0.00074244
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Other satellites on launch #22 in the year 2022 (2022-03-03 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-3549 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. |
|---|---|---|---|---|---|---|---|
| 4 mins | 2026-06-22 13:30:48.195Z | 353.47° N | 2026-06-22 13:31:48.195Z | 15.594° NNE | 21.541° | 2026-06-22 13:34:48.195Z | 75.962° E |
| 5 mins | 2026-06-22 15:08:48.195Z | 295.968° NW | 2026-06-22 15:10:48.195Z | 230.924° WSW | 40.684° | 2026-06-22 15:13:48.195Z | 146.723° SSE |
| 5 mins | 2026-06-23 08:09:48.195Z | 255.672° W | 2026-06-23 08:11:48.195Z | 320.734° NNW | 38.674° | 2026-06-23 08:14:48.195Z | 38.985° NE |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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