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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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: 18 hours ago
TLE from 18 hours ago
0 STARLINK-2555
1 48291U 21036R 25336.76889312 .00001276 00000-0 10455-3 0 9993
2 48291 53.0534 156.7159 0001381 89.4847 270.6300 15.06395411253703Epoch: 2025-12-02T18:27Z
TLE epoch observation values (Epoch: 2025-12-02T18:27:12.365Z)
Latitude
-0.00004°
Longitude
168.06505°
Altitude
548.094 km
Speed
7.589 km/s
True Right ascension
10h 26m 51s
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
10:07:09
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
548.453 km
Perigee altitude
546.54 km
Semi-major axis
6,925.634 km
Eccentricity
0.00014
Inclination
53.0534°
RAAN
156.7159°
Arg. of periapsis
89.4847°
True anomaly
270.61418°
Mean anomaly
270.63°
Eccentric anomaly
270.62209°
Mean motion
3.76577 °/min
Orbital period
95.6 mins
BSTAR
0.00010455
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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. |
|---|---|---|---|---|---|---|---|
| 6 mins | 2025-12-03 13:42:17.971Z | 176.439° S | 2025-12-03 13:45:17.971Z | 127.235° SE | 19.737° | 2025-12-03 13:48:17.971Z | 79.307° E |
| 6 mins | 2025-12-03 15:22:17.971Z | 256.006° W | 2025-12-03 15:24:17.971Z | 313.029° NW | 38.867° | 2025-12-03 15:28:17.971Z | 42.391° NE |
| 4 mins | 2025-12-03 17:03:17.971Z | 319.248° NNW | 2025-12-03 17:04:17.971Z | 336.198° NNW | 15.958° | 2025-12-03 17:07:17.971Z | 24.155° NE |
| 5 mins | 2025-12-03 20:24:17.971Z | 343.628° N | 2025-12-03 20:26:17.971Z | 28.195° NE | 25.075° | 2025-12-03 20:29:17.971Z | 83.206° E |
| 6 mins | 2025-12-03 22:03:17.971Z | 295.378° NW | 2025-12-03 22:06:17.971Z | 204.483° SW | 37.869° | 2025-12-03 22:09:17.971Z | 150.395° 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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