STARLINK-2399, 47816
Orbit data source: Space-Track
STARLINK-2399, 47816 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Thu, 11 Mar 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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47816 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: 8 hours ago
TLE from 8 hours ago
0 STARLINK-2399
1 47816U 21018AF 26120.13990595 .00007770 00000-0 28126-3 0 9993
2 47816 53.1561 18.6346 0001163 94.2256 265.8877 15.29362332284379Epoch: 2026-04-30T03:21Z
TLE epoch observation values (Epoch: 2026-04-30T03:21:27.874Z)
Latitude
-0.00002°
Longitude
110.17765°
Altitude
478.674 km
Speed
7.627 km/s
True Right ascension
01h 14m 32s
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
18:59:34
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
478.772 km
Perigee altitude
477.177 km
Semi-major axis
6,856.111 km
Eccentricity
0.00012
Inclination
53.1561°
RAAN
18.6346°
Arg. of periapsis
94.2256°
True anomaly
265.87441°
Mean anomaly
265.8877°
Eccentric anomaly
265.88105°
Mean motion
3.82319 °/min
Orbital period
94.16 mins
BSTAR
0.00028126
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Other satellites on launch #18 in the year 2021 (2021-03-11 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-2399 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 | 2026-04-30 19:12:21.131Z | 186.014° SSW | 2026-04-30 19:14:21.131Z | 142.844° SSE | 26.562° | 2026-04-30 19:17:21.131Z | 74.042° E |
| 5 mins | 2026-04-30 20:50:21.131Z | 272.135° WNW | 2026-04-30 20:52:21.131Z | 319.553° NNW | 28.771° | 2026-04-30 20:55:21.131Z | 30.417° NE |
| 4 mins | 2026-05-01 01:48:21.131Z | 351.397° N | 2026-05-01 01:49:21.131Z | 18.994° NNE | 26.845° | 2026-05-01 01:52:21.131Z | 89.205° E |
| 5 mins | 2026-05-01 03:25:21.131Z | 284.566° WNW | 2026-05-01 03:27:21.131Z | 238.905° WSW | 29.071° | 2026-05-01 03:30:21.131Z | 166.071° S |
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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