STARLINK-2406, 47821
Orbit data source: Space-Track
STARLINK-2406, 47821 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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47821 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: 22 hours ago
TLE from 22 hours ago
0 STARLINK-2406
1 47821U 21018AL 25339.16383072 -.00000123 00000-0 10644-4 0 9992
2 47821 53.0535 315.9694 0001281 83.0956 277.0179 15.06403251262342Epoch: 2025-12-05T03:55Z
TLE epoch observation values (Epoch: 2025-12-05T03:55:54.974Z)
Latitude
0.00002°
Longitude
-177.2195°
Altitude
547.972 km
Speed
7.589 km/s
True Right ascension
21h 03m 52s
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
00:15:41
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
548.36 km
Perigee altitude
546.585 km
Semi-major axis
6,925.609 km
Eccentricity
0.00013
Inclination
53.0535°
RAAN
315.9694°
Arg. of periapsis
83.0956°
True anomaly
277.00333°
Mean anomaly
277.0179°
Eccentric anomaly
277.01062°
Mean motion
3.76579 °/min
Orbital period
95.6 mins
BSTAR
0.000010644
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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-2406 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 | 2025-12-06 02:27:39.182Z | 275.862° WNW | 2025-12-06 02:30:39.182Z | 337.511° N | 26.544° | 2025-12-06 02:33:39.182Z | 31.232° NE |
| 6 mins | 2025-12-06 07:29:39.182Z | 326.049° NNW | 2025-12-06 07:32:39.182Z | 54.606° ENE | 36.078° | 2025-12-06 07:35:39.182Z | 107.747° ESE |
| 5 mins | 2025-12-06 09:09:39.182Z | 269.059° W | 2025-12-06 09:11:39.182Z | 228.402° WSW | 21.96° | 2025-12-06 09:14:39.182Z | 178.489° S |
| 6 mins | 2025-12-07 00:41:39.182Z | 214.403° SW | 2025-12-07 00:44:39.182Z | 119.417° SE | 41.704° | 2025-12-07 00:47:39.182Z | 57.765° 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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