STARLINK-2143, 47733
Orbit data source: Space-Track
STARLINK-2143, 47733 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Thu, 04 Mar 2021 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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47733 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
260 kg wet, ~248 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: 12 hours ago
TLE from 12 hours ago
0 STARLINK-2143
1 47733U 21017M 25347.00659965 -.00001946 00000-0 -11184-3 0 9996
2 47733 53.0533 250.7499 0001453 93.9739 266.1416 15.06385162264571Epoch: 2025-12-13T00:09Z
TLE epoch observation values (Epoch: 2025-12-13T00:09:30.209Z)
Latitude
-0.00004°
Longitude
166.43394°
Altitude
548.204 km
Speed
7.589 km/s
True Right ascension
16h 42m 59s
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
11:00:55
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
548.534 km
Perigee altitude
546.522 km
Semi-major axis
6,925.665 km
Eccentricity
0.00015
Inclination
53.0533°
RAAN
250.7499°
Arg. of periapsis
93.9739°
True anomaly
266.12499°
Mean anomaly
266.1416°
Eccentric anomaly
266.13329°
Mean motion
3.76575 °/min
Orbital period
95.6 mins
BSTAR
-0.00011184
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Other satellites on launch #17 in the year 2021 (2021-03-04 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-2143 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. |
|---|---|---|---|---|---|---|---|
| 6 mins | 2025-12-13 19:24:36.691Z | 182.326° SSW | 2025-12-13 19:27:36.691Z | 133.183° SE | 22.086° | 2025-12-13 19:30:36.691Z | 79.389° E |
| 6 mins | 2025-12-13 21:04:36.691Z | 258.796° W | 2025-12-13 21:06:36.691Z | 302.515° NW | 35.636° | 2025-12-13 21:10:36.691Z | 39.584° NE |
| 5 mins | 2025-12-14 02:06:36.691Z | 338.307° N | 2025-12-14 02:08:36.691Z | 20.369° NNE | 26.562° | 2025-12-14 02:11:36.691Z | 83.619° E |
| 5 mins | 2025-12-14 03:46:36.691Z | 284.161° WNW | 2025-12-14 03:48:36.691Z | 221.07° SW | 35.614° | 2025-12-14 03:51:36.691Z | 156.604° SSE |
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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