STARLINK-1954, 47555
Orbit data source: Space-Track
STARLINK-1954, 47555 is 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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47555 intel report (Beta)
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Identifier
Orbit
Country
USRelated business
Manufacturer
SpaceX/Seattle
Mission
Partially 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: 9 hours ago
TLE from 9 hours ago
0 STARLINK-1954
1 47555U 21009H 26092.19543969 .00097451 00000-0 29437-2 0 9996
2 47555 53.0541 260.4233 0002434 211.9761 148.1092 15.33463046284561Epoch: 2026-04-02T04:41Z
TLE epoch observation values (Epoch: 2026-04-02T04:41:25.989Z)
Latitude
-0.00004°
Longitude
-0.48242°
Altitude
467.793 km
Speed
7.633 km/s
True Right ascension
17h 21m 41s
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
19:04:19
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
467.429 km
Perigee altitude
464.098 km
Semi-major axis
6,843.9 km
Eccentricity
0.00024
Inclination
53.0541°
RAAN
260.4233°
Arg. of periapsis
211.9761°
True anomaly
148.12393°
Mean anomaly
148.1092°
Eccentric anomaly
148.11657°
Mean motion
3.83343 °/min
Orbital period
93.91 mins
BSTAR
0.0029437
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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-1954 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 | 2026-04-02 14:16:10.818Z | 239.532° WSW | 2026-04-02 14:19:10.818Z | 357.104° N | 42.239° | 2026-04-02 14:22:10.818Z | 45.554° ENE |
| 4 mins | 2026-04-02 19:13:10.818Z | 346.772° N | 2026-04-02 19:15:10.818Z | 27.374° NE | 17.878° | 2026-04-02 19:17:10.818Z | 64.585° ENE |
| 5 mins | 2026-04-02 20:51:10.818Z | 306.84° NW | 2026-04-02 20:53:10.818Z | 178.377° S | 44.62° | 2026-04-02 20:56:10.818Z | 133.772° SE |
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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