STARLINK-2145, 48555
Orbit data source: Space-Track
STARLINK-2145, 48555 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Sat, 15 May 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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48555 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: 20 hours ago
TLE from 20 hours ago
0 STARLINK-2145
1 48555U 21041C 25348.79059010 .00001936 00000-0 14887-3 0 9998
2 48555 53.0544 162.7444 0001322 92.5877 267.5264 15.06389652252268Epoch: 2025-12-14T18:58Z
TLE epoch observation values (Epoch: 2025-12-14T18:58:26.984Z)
Latitude
0.00002°
Longitude
154.43354°
Altitude
548.162 km
Speed
7.589 km/s
True Right ascension
10h 50m 58s
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
13:19:55
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
548.43 km
Perigee altitude
546.598 km
Semi-major axis
6,925.651 km
Eccentricity
0.00013
Inclination
53.0544°
RAAN
162.7444°
Arg. of periapsis
92.5877°
True anomaly
267.51127°
Mean anomaly
267.5264°
Eccentric anomaly
267.51883°
Mean motion
3.76576 °/min
Orbital period
95.6 mins
BSTAR
0.00014887
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Other satellites on launch #41 in the year 2021 (2021-05-15 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-2145 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 | 2025-12-15 15:55:21.980Z | 283.293° WNW | 2025-12-15 15:58:21.980Z | 337.735° N | 22.713° | 2025-12-15 16:01:21.980Z | 28.953° NE |
| 4 mins | 2025-12-15 19:18:21.980Z | 351.687° N | 2025-12-15 19:19:21.980Z | 9.279° NNE | 17.106° | 2025-12-15 19:22:21.980Z | 59.354° ENE |
| 6 mins | 2025-12-15 20:57:21.980Z | 318.906° NNW | 2025-12-15 21:00:21.980Z | 72.473° E | 41.219° | 2025-12-15 21:03:21.980Z | 118.781° SE |
| 6 mins | 2025-12-16 14:09:21.980Z | 228.687° WSW | 2025-12-16 14:12:21.980Z | 54.192° ENE | 44.466° | 2025-12-16 14:15:21.980Z | 50.421° ENE |
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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