STARLINK-3821, 52357
Orbit data source: Space-Track
STARLINK-3821, 52357 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Fri, 29 Apr 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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52357 intel report (Beta)
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Edit Public Description
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
11.087 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 16 hours ago
TLE from 16 hours ago
0 STARLINK-3821
1 52357U 22045AC 25349.95413578 .00000917 00000-0 75741-4 0 9995
2 52357 53.2162 215.0244 0001279 89.7828 270.3311 15.08824152203145Epoch: 2025-12-15T22:53Z
TLE epoch observation values (Epoch: 2025-12-15T22:53:57.331Z)
Latitude
0.00001°
Longitude
146.69023°
Altitude
540.684 km
Speed
7.593 km/s
True Right ascension
14h 20m 05s
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
13:48:19
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
540.922 km
Perigee altitude
539.152 km
Semi-major axis
6,918.174 km
Eccentricity
0.00013
Inclination
53.2162°
RAAN
215.0244°
Arg. of periapsis
89.7828°
True anomaly
270.31644°
Mean anomaly
270.3311°
Eccentric anomaly
270.32377°
Mean motion
3.77186 °/min
Orbital period
95.44 mins
BSTAR
0.000075741
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Other satellites on launch #45 in the year 2022 (2022-04-29 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-3821 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 | 2025-12-16 16:32:44.701Z | 152.976° SSE | 2025-12-16 16:34:44.701Z | 118.928° SE | 15.206° | 2025-12-16 16:36:44.701Z | 88.952° E |
| 6 mins | 2025-12-16 18:10:44.701Z | 242.526° WSW | 2025-12-16 18:13:44.701Z | 6.86° NNE | 40.971° | 2025-12-16 18:16:44.701Z | 44.642° NE |
| 4 mins | 2025-12-16 19:51:44.701Z | 314.511° NW | 2025-12-16 19:52:44.701Z | 332.192° NNW | 16.962° | 2025-12-16 19:55:44.701Z | 22.479° NNE |
| 4 mins | 2025-12-16 23:12:44.701Z | 349.178° N | 2025-12-16 23:14:44.701Z | 31.177° NE | 21.216° | 2025-12-16 23:16:44.701Z | 67.875° E |
| 6 mins | 2025-12-17 00:51:44.701Z | 303.241° NW | 2025-12-17 00:53:44.701Z | 268.301° W | 42.457° | 2025-12-17 00:57:44.701Z | 138.842° SSE |
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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