STARLINK-1981, 47579 (Decayed)
Orbit data source: Space-Track
STARLINK-1981, 47579 was a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Thu, 04 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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47579 intel report (Beta)
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Identifier
Orbit
Country
USRelated business
Manufacturer
SpaceX/Seattle
Mission
Decayed 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: 1 year ago
TLE from 1 year ago
0 STARLINK-1981
1 47579U 21009AH 25033.77714413 .15572450 12313-4 31269-3 0 9998
2 47579 53.0175 333.1346 0012795 183.4451 255.0642 16.45985662221728Epoch: 2025-02-02T18:39Z
TLE epoch observation values (Epoch: 2025-02-02T18:39:05.252Z)
Latitude
51.63971°
Longitude
-8.75591°
Altitude
158.216 km
Speed
7.816 km/s
True Right ascension
02h 56m 53s
True Declination
51° 27' 25"
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
22:36:43
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
158.574 km
Perigee altitude
141.868 km
Semi-major axis
6,528.358 km
Eccentricity
0.00128
Inclination
53.0175°
RAAN
333.1346°
Arg. of periapsis
183.4451°
True anomaly
254.92259°
Mean anomaly
255.0642°
Eccentric anomaly
254.99339°
Mean motion
4.11469 °/min
Orbital period
87.49 mins
BSTAR
0.00031269
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Other satellites on launch #9 in the year 2021 (2021-02-04 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-1981 Visibility
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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. |
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| This satellite is decayed. |
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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