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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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: 10 hours ago
TLE from 10 hours ago
0 STARLINK-2140
1 47730U 21017J 25347.01258673 -.00001726 00000-0 -97045-4 0 9992
2 47730 53.0536 245.7355 0001370 86.9923 273.1223 15.06389896264595Epoch: 2025-12-13T00:18Z
TLE epoch observation values (Epoch: 2025-12-13T00:18:07.493Z)
Latitude
0°
Longitude
159.25831°
Altitude
548.07 km
Speed
7.589 km/s
True Right ascension
16h 22m 56s
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
09:13:59
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
548.462 km
Perigee altitude
546.565 km
Semi-major axis
6,925.65 km
Eccentricity
0.00014
Inclination
53.0536°
RAAN
245.7355°
Arg. of periapsis
86.9923°
True anomaly
273.10662°
Mean anomaly
273.1223°
Eccentric anomaly
273.11446°
Mean motion
3.76576 °/min
Orbital period
95.6 mins
BSTAR
-0.000097045
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Other satellites on launch #17 in the year 2021 (2021-03-04 UTC)
Did you know?
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. |
|---|---|---|---|---|---|---|---|
| 7 mins | 2025-12-13 19:33:58.080Z | 203.465° SW | 2025-12-13 19:36:58.080Z | 152.526° SSE | 33.677° | 2025-12-13 19:40:58.080Z | 63.475° ENE |
| 5 mins | 2025-12-13 21:14:58.080Z | 283.438° WNW | 2025-12-13 21:16:58.080Z | 330.144° NNW | 27.431° | 2025-12-13 21:19:58.080Z | 29.636° NE |
| 4 mins | 2025-12-14 00:36:58.080Z | 348.703° N | 2025-12-14 00:38:58.080Z | 22.547° NE | 15.031° | 2025-12-14 00:40:58.080Z | 51.995° ENE |
| 6 mins | 2025-12-14 02:15:58.080Z | 325.205° NNW | 2025-12-14 02:18:58.080Z | 41.262° NE | 35.76° | 2025-12-14 02:21:58.080Z | 104.513° ESE |
| 5 mins | 2025-12-14 03:55:58.080Z | 273.838° WNW | 2025-12-14 03:57:58.080Z | 234.685° WSW | 23.023° | 2025-12-14 04:00:58.080Z | 179.279° S |
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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