STARLINK-2557, 48299
Orbit data source: Space-Track
STARLINK-2557, 48299 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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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: 5 hours ago
TLE from 5 hours ago
0 STARLINK-2557
1 48299U 21036Z 26242.49262444 .00004491 00000-0 15631-3 0 9992
2 48299 53.1618 346.5363 0001144 80.0357 280.0773 15.31714969295044Epoch: 2026-08-30T11:49Z
TLE epoch observation values (Epoch: 2026-08-30T11:49:22.751Z)
Latitude
-0.00007°
Longitude
-169.49598°
Altitude
471.459 km
Speed
7.632 km/s
True Right ascension
23h 06m 08s
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
07:57:34
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
471.735 km
Perigee altitude
470.168 km
Semi-major axis
6,849.089 km
Eccentricity
0.00011
Inclination
53.1618°
RAAN
346.5363°
Arg. of periapsis
80.0357°
True anomaly
280.06439°
Mean anomaly
280.0773°
Eccentric anomaly
280.07085°
Mean motion
3.82908 °/min
Orbital period
94.02 mins
BSTAR
0.00015631
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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-2557 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 | 2026-08-30 17:01:33.402Z | 304.765° NW | 2026-08-30 17:04:33.402Z | 251.212° W | 42.333° | 2026-08-30 17:07:33.402Z | 141.569° SSE |
| 5 mins | 2026-08-31 09:57:33.402Z | 245.968° WSW | 2026-08-31 09:59:33.402Z | 2.286° NNE | 41.474° | 2026-08-31 10:02:33.402Z | 45.222° ENE |
| 4 mins | 2026-08-31 14:53:33.402Z | 342.924° N | 2026-08-31 14:55:33.402Z | 20.929° NNE | 17.945° | 2026-08-31 14:57:33.402Z | 60.468° 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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