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: 11 hours ago
TLE from 11 hours ago
0 STARLINK-1647
1 47978U 21024B 26130.04563377 .00001150 00000-0 48807-4 0 9999
2 47978 53.1601 47.0841 0001185 88.4094 271.7043 15.31701255284025Epoch: 2026-05-10T01:05Z
TLE epoch observation values (Epoch: 2026-05-10T01:05:42.757Z)
Latitude
-0.00005°
Longitude
162.80156°
Altitude
471.613 km
Speed
7.631 km/s
True Right ascension
03h 08m 20s
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
19:53:06
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
471.804 km
Perigee altitude
470.181 km
Semi-major axis
6,849.13 km
Eccentricity
0.00012
Inclination
53.1601°
RAAN
47.0841°
Arg. of periapsis
88.4094°
True anomaly
271.69073°
Mean anomaly
271.7043°
Eccentric anomaly
271.69751°
Mean motion
3.82904 °/min
Orbital period
94.02 mins
BSTAR
0.000048807
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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. |
|---|---|---|---|---|---|---|---|
| 4 mins | 2026-05-10 20:02:25.988Z | 170.652° S | 2026-05-10 20:04:25.988Z | 134.383° SE | 17.911° | 2026-05-10 20:06:25.988Z | 93.705° ESE |
| 5 mins | 2026-05-10 21:40:25.988Z | 260.961° W | 2026-05-10 21:42:25.988Z | 337.429° NNW | 36.702° | 2026-05-10 21:45:25.988Z | 39.507° NE |
| 4 mins | 2026-05-11 02:37:25.988Z | 354.208° N | 2026-05-11 02:38:25.988Z | 16.915° NNE | 20.792° | 2026-05-11 02:41:25.988Z | 77.159° E |
| 5 mins | 2026-05-11 04:14:25.988Z | 297.981° NW | 2026-05-11 04:16:25.988Z | 254.421° W | 38.794° | 2026-05-11 04:19:25.988Z | 148.341° 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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