STARLINK-1647, 47978
Orbit data source: Space-Track
STARLINK-1647, 47978 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Wed, 24 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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47978 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-1647
1 47978U 21024B 26175.19890810 .00001165 00000-0 49303-4 0 9997
2 47978 53.1586 196.8707 0001247 83.5506 276.5637 15.31700474290946Epoch: 2026-06-24T04:46Z
TLE epoch observation values (Epoch: 2026-06-24T04:46:25.659Z)
Latitude
-0.00007°
Longitude
-147.09582°
Altitude
471.541 km
Speed
7.632 km/s
True Right ascension
13h 07m 28s
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
10:19:13
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
471.849 km
Perigee altitude
470.141 km
Semi-major axis
6,849.132 km
Eccentricity
0.00012
Inclination
53.1586°
RAAN
196.8707°
Arg. of periapsis
83.5506°
True anomaly
276.5495°
Mean anomaly
276.5637°
Eccentric anomaly
276.5566°
Mean motion
3.82904 °/min
Orbital period
94.02 mins
BSTAR
0.000049303
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Other satellites on launch #24 in the year 2021 (2021-03-24 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-1647 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. |
|---|---|---|---|---|---|---|---|
| 5 mins | 2026-06-25 04:28:14.661Z | 247.746° W | 2026-06-25 04:30:14.661Z | 303.392° NW | 40.427° | 2026-06-25 04:33:14.661Z | 41.012° NE |
| 5 mins | 2026-06-25 09:24:14.661Z | 334.988° NNW | 2026-06-25 09:27:14.661Z | 30.922° NE | 18.908° | 2026-06-25 09:29:14.661Z | 68.245° E |
| 5 mins | 2026-06-25 11:03:14.661Z | 301.903° NW | 2026-06-25 11:05:14.661Z | 198.522° SSW | 43.46° | 2026-06-25 11:08:14.661Z | 138.505° 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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