STARLINK-2140, 47730
Orbit data source: Space-Track
STARLINK-2140, 47730 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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47730 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
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: 18 hours ago
TLE from 18 hours ago
0 STARLINK-2140
1 47730U 21017J 26130.84634691 .00006032 00000-0 20591-3 0 9996
2 47730 53.1585 287.9431 0001093 84.1278 275.9848 15.31711640287174Epoch: 2026-05-10T20:18Z
TLE epoch observation values (Epoch: 2026-05-10T20:18:44.373Z)
Latitude
0°
Longitude
114.61465°
Altitude
471.527 km
Speed
7.632 km/s
True Right ascension
19h 11m 46s
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
22:31:48
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
471.711 km
Perigee altitude
470.214 km
Semi-major axis
6,849.099 km
Eccentricity
0.00011
Inclination
53.1585°
RAAN
287.9431°
Arg. of periapsis
84.1278°
True anomaly
275.97234°
Mean anomaly
275.9848°
Eccentric anomaly
275.97857°
Mean motion
3.82907 °/min
Orbital period
94.02 mins
BSTAR
0.00020591
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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-2140 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 | 2026-05-11 18:42:45.294Z | 356.838° N | 2026-05-11 18:43:45.294Z | 20.77° NNE | 21.399° | 2026-05-11 18:46:45.294Z | 79.583° E |
| 5 mins | 2026-05-11 20:19:45.294Z | 295.692° NW | 2026-05-11 20:21:45.294Z | 241.835° WSW | 38.845° | 2026-05-11 20:24:45.294Z | 149.169° SSE |
| 5 mins | 2026-05-12 13:14:45.294Z | 255.764° W | 2026-05-12 13:16:45.294Z | 348.602° N | 38.789° | 2026-05-12 13:19:45.294Z | 42.165° 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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