STARLINK-1821, 46718
Orbit data source: Space-Track
STARLINK-1821, 46718 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Sun, 18 Oct 2020 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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46718 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
USRelated business
Manufacturer
SpaceX/Seattle
Mission
Partially 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-1821
1 46718U 20073BA 25310.76276220 .00021506 00000-0 92046-3 0 9999
2 46718 53.0553 78.4858 0003802 144.7162 215.4086 15.22764955278534Epoch: 2025-11-06T18:18Z
TLE epoch observation values (Epoch: 2025-11-06T18:18:22.654Z)
Latitude
-0.00003°
Longitude
117.67496°
Altitude
500.522 km
Speed
7.614 km/s
True Right ascension
05h 13m 56s
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
03:15:15
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
500.392 km
Perigee altitude
495.163 km
Semi-major axis
6,875.915 km
Eccentricity
0.00038
Inclination
53.0553°
RAAN
78.4858°
Arg. of periapsis
144.7162°
True anomaly
215.38337°
Mean anomaly
215.4086°
Eccentric anomaly
215.39598°
Mean motion
3.80669 °/min
Orbital period
94.57 mins
BSTAR
0.00092046
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Other satellites on launch #73 in the year 2020 (2020-10-18 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-1821 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. |
|---|---|---|---|---|---|---|---|
| 4 mins | 2025-11-08 09:50:49.559Z | 158.72° S | 2025-11-08 09:52:49.559Z | 120.428° SE | 16.872° | 2025-11-08 09:54:49.559Z | 87.21° E |
| 6 mins | 2025-11-08 11:27:49.559Z | 248.459° W | 2025-11-08 11:30:49.559Z | 344.218° N | 39.116° | 2025-11-08 11:33:49.559Z | 41.656° NE |
| 5 mins | 2025-11-08 16:26:49.559Z | 342.53° N | 2025-11-08 16:28:49.559Z | 23.959° NE | 21.598° | 2025-11-08 16:31:49.559Z | 78.915° E |
| 6 mins | 2025-11-08 18:04:49.559Z | 300.444° NW | 2025-11-08 18:07:49.559Z | 198.741° SSW | 40.594° | 2025-11-08 18:10:49.559Z | 144.125° SSE |
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 ascending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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