STARLINK-2015, 47638
Orbit data source: Space-Track
STARLINK-2015, 47638 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Tue, 16 Feb 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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47638 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-2015
1 47638U 21012U 25343.39298628 -.00002031 00000-0 -11745-3 0 9997
2 47638 53.0542 21.9768 0001540 80.8042 279.3122 15.06401755267683Epoch: 2025-12-09T09:25Z
TLE epoch observation values (Epoch: 2025-12-09T09:25:54.014Z)
Latitude
0.00004°
Longitude
162.12346°
Altitude
547.913 km
Speed
7.589 km/s
True Right ascension
01h 27m 54s
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
19:50:32
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
548.543 km
Perigee altitude
546.41 km
Semi-major axis
6,925.614 km
Eccentricity
0.00015
Inclination
53.0542°
RAAN
21.9768°
Arg. of periapsis
80.8042°
True anomaly
279.29478°
Mean anomaly
279.3122°
Eccentric anomaly
279.30349°
Mean motion
3.76579 °/min
Orbital period
95.6 mins
BSTAR
-0.00011745
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Other satellites on launch #12 in the year 2021 (2021-02-16 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-2015 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 | 2025-12-10 04:41:30.649Z | 194.207° SSW | 2025-12-10 04:44:30.649Z | 139.949° SSE | 29.087° | 2025-12-10 04:47:30.649Z | 73.728° E |
| 6 mins | 2025-12-10 06:21:30.649Z | 268.316° W | 2025-12-10 06:24:30.649Z | 339.044° N | 30.567° | 2025-12-10 06:27:30.649Z | 34.178° NE |
| 6 mins | 2025-12-10 11:23:30.649Z | 331.222° NNW | 2025-12-10 11:26:30.649Z | 48.516° ENE | 31.151° | 2025-12-10 11:29:30.649Z | 99.301° ESE |
| 5 mins | 2025-12-10 13:03:30.649Z | 275.994° WNW | 2025-12-10 13:05:30.649Z | 228.525° WSW | 27.832° | 2025-12-10 13:08:30.649Z | 169.955° S |
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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