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: 11 hours ago
TLE from 11 hours ago
0 STARLINK-2557
1 48299U 21036Z 26193.03283993 -.00000611 00000-0 -79224-5 0 9991
2 48299 53.1594 216.7977 0001464 68.8222 291.2936 15.31695712287462Epoch: 2026-07-12T00:47Z
TLE epoch observation values (Epoch: 2026-07-12T00:47:17.369Z)
Latitude
-0.00003°
Longitude
-84.96221°
Altitude
471.289 km
Speed
7.632 km/s
True Right ascension
14h 27m 11s
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
23:48:00
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
472.012 km
Perigee altitude
470.007 km
Semi-major axis
6,849.146 km
Eccentricity
0.00015
Inclination
53.1594°
RAAN
216.7977°
Arg. of periapsis
68.8222°
True anomaly
291.27797°
Mean anomaly
291.2936°
Eccentric anomaly
291.28578°
Mean motion
3.82903 °/min
Orbital period
94.02 mins
BSTAR
-0.0000079224
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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. |
|---|---|---|---|---|---|---|---|
| 5 mins | 2026-07-12 12:17:58.318Z | 275.8° WNW | 2026-07-12 12:19:58.318Z | 233.438° WSW | 22.378° | 2026-07-12 12:22:58.318Z | 175.21° S |
| 5 mins | 2026-07-13 03:34:58.318Z | 188.661° SSW | 2026-07-13 03:36:58.318Z | 135.312° SSE | 30.147° | 2026-07-13 03:39:58.318Z | 68.586° E |
| 5 mins | 2026-07-13 05:12:58.318Z | 281.518° WNW | 2026-07-13 05:14:58.318Z | 333.626° NNW | 26.375° | 2026-07-13 05:17:58.318Z | 32.012° NE |
| 4 mins | 2026-07-13 10:09:58.318Z | 345.813° N | 2026-07-13 10:11:58.318Z | 49.971° ENE | 28.219° | 2026-07-13 10:13:58.318Z | 91.553° ESE |
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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