STARLINK-2499, 48377
Orbit data source: Space-Track
STARLINK-2499, 48377 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Tue, 04 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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48377 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: 2 days ago
TLE from 2 days ago
0 STARLINK-2499
1 48377U 21038AA 26171.42246580 .00000398 00000-0 24588-4 0 9992
2 48377 53.1588 229.9261 0001038 82.5011 277.6108 15.31702154282968Epoch: 2026-06-20T10:08Z
TLE epoch observation values (Epoch: 2026-06-20T10:08:21.045Z)
Latitude
-0.00003°
Longitude
169.20108°
Altitude
471.54 km
Speed
7.632 km/s
True Right ascension
15h 19m 42s
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
21:40:54
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
471.701 km
Perigee altitude
470.279 km
Semi-major axis
6,849.127 km
Eccentricity
0.0001
Inclination
53.1588°
RAAN
229.9261°
Arg. of periapsis
82.5011°
True anomaly
277.59901°
Mean anomaly
277.6108°
Eccentric anomaly
277.60491°
Mean motion
3.82904 °/min
Orbital period
94.02 mins
BSTAR
0.000024588
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Other satellites on launch #38 in the year 2021 (2021-05-04 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-2499 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 | 2026-06-22 12:45:51.581Z | 324.077° NNW | 2026-06-22 12:47:51.581Z | 71.733° E | 41.05° | 2026-06-22 12:50:51.581Z | 120.083° SE |
| 5 mins | 2026-06-23 05:39:51.581Z | 213.382° SW | 2026-06-23 05:41:51.581Z | 147.469° SSE | 42.039° | 2026-06-23 05:44:51.581Z | 57.11° ENE |
| 4 mins | 2026-06-23 07:18:51.581Z | 307.433° NW | 2026-06-23 07:19:51.581Z | 330.297° NNW | 19.981° | 2026-06-23 07:22:51.581Z | 26.362° NE |
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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