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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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: 16 hours ago
TLE from 16 hours ago
0 STARLINK-1821
1 46718U 20073BA 26126.73542941 .00084796 00000-0 16712-2 0 9993
2 46718 53.0465 311.3361 0000643 49.5508 310.5554 15.46505009306303Epoch: 2026-05-06T17:39Z
TLE epoch observation values (Epoch: 2026-05-06T17:39:01.101Z)
Latitude
-0.00003°
Longitude
-178.01016°
Altitude
427.569 km
Speed
7.656 km/s
True Right ascension
20h 45m 20s
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
17:21:22
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
427.674 km
Perigee altitude
426.799 km
Semi-major axis
6,805.373 km
Eccentricity
0.00006
Inclination
53.0465°
RAAN
311.3361°
Arg. of periapsis
49.5508°
True anomaly
310.5498°
Mean anomaly
310.5554°
Eccentric anomaly
310.5526°
Mean motion
3.86603 °/min
Orbital period
93.12 mins
BSTAR
0.0016712
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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 | 2026-05-07 13:57:54.211Z | 177.006° S | 2026-05-07 13:59:54.211Z | 139.946° SSE | 18.362° | 2026-05-07 14:01:54.211Z | 94.025° ESE |
| 5 mins | 2026-05-07 15:34:54.211Z | 262.646° W | 2026-05-07 15:36:54.211Z | 324.035° NNW | 33.493° | 2026-05-07 15:39:54.211Z | 36.955° NE |
| 4 mins | 2026-05-07 20:28:54.211Z | 348.541° N | 2026-05-07 20:30:54.211Z | 37.462° NE | 20.014° | 2026-05-07 20:32:54.211Z | 76.454° E |
| 4 mins | 2026-05-07 22:05:54.211Z | 288.802° WNW | 2026-05-07 22:07:54.211Z | 198.525° SSW | 36.563° | 2026-05-07 22:09:54.211Z | 152.19° 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 descending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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