STARLINK-2555, 48291
Orbit data source: Space-Track
STARLINK-2555, 48291 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Thu, 29 Apr 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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48291 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-2555
1 48291U 21036R 26092.03075884 .00008152 00000-0 28712-3 0 9999
2 48291 53.1594 329.3999 0001326 96.2813 263.8339 15.30194078271943Epoch: 2026-04-02T00:44Z
TLE epoch observation values (Epoch: 2026-04-02T00:44:17.563Z)
Latitude
-0.00002°
Longitude
127.94162°
Altitude
476.23 km
Speed
7.629 km/s
True Right ascension
21h 57m 35s
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
00:35:20
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
476.398 km
Perigee altitude
474.58 km
Semi-major axis
6,853.626 km
Eccentricity
0.00013
Inclination
53.1594°
RAAN
329.3999°
Arg. of periapsis
96.2813°
True anomaly
263.81879°
Mean anomaly
263.8339°
Eccentric anomaly
263.82635°
Mean motion
3.82527 °/min
Orbital period
94.11 mins
BSTAR
0.00028712
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Other satellites on launch #36 in the year 2021 (2021-04-29 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-2555 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 | 2026-04-02 19:47:17.806Z | 280.62° WNW | 2026-04-02 19:50:17.806Z | 340.99° N | 21.753° | 2026-04-02 19:52:17.806Z | 20.895° NNE |
| 5 mins | 2026-04-03 00:45:17.806Z | 336.529° NNW | 2026-04-03 00:47:17.806Z | 57.479° ENE | 34.885° | 2026-04-03 00:50:17.806Z | 109.584° ESE |
| 5 mins | 2026-04-03 17:40:17.806Z | 198.235° SSW | 2026-04-03 17:42:17.806Z | 141.014° SSE | 35.158° | 2026-04-03 17:45:17.806Z | 64.629° ENE |
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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