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: 16 hours ago
TLE from 16 hours ago
0 STARLINK-1821
1 46718U 20073BA 25288.95821838 .00051008 00000-0 22964-2 0 9996
2 46718 53.0472 178.7262 0006166 79.3959 280.7730 15.20591626275214Epoch: 2025-10-15T22:59Z
TLE epoch observation values (Epoch: 2025-10-15T22:59:50.068Z)
Latitude
-0.00003°
Longitude
169.04273°
Altitude
504.148 km
Speed
7.614 km/s
True Right ascension
11h 54m 54s
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
09:49:15
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
508.572 km
Perigee altitude
500.085 km
Semi-major axis
6,882.465 km
Eccentricity
0.00062
Inclination
53.0472°
RAAN
178.7262°
Arg. of periapsis
79.3959°
True anomaly
280.70358°
Mean anomaly
280.773°
Eccentric anomaly
280.73829°
Mean motion
3.80126 °/min
Orbital period
94.71 mins
BSTAR
0.0022964
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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. |
|---|---|---|---|---|---|---|---|
| 6 mins | 2025-10-16 19:42:11.232Z | 239.931° WSW | 2025-10-16 19:44:11.232Z | 270.324° WNW | 41.349° | 2025-10-16 19:48:11.232Z | 46.229° ENE |
| 4 mins | 2025-10-16 21:22:11.232Z | 311.075° NW | 2025-10-16 21:24:11.232Z | 349.068° N | 16.419° | 2025-10-16 21:26:11.232Z | 21.698° NNE |
| 4 mins | 2025-10-17 00:42:11.232Z | 358.043° N | 2025-10-17 00:43:11.232Z | 19.542° NNE | 19.519° | 2025-10-17 00:46:11.232Z | 72.805° E |
| 5 mins | 2025-10-17 02:20:11.232Z | 305.013° NW | 2025-10-17 02:22:11.232Z | 241.166° WSW | 44.384° | 2025-10-17 02:25:11.232Z | 136.259° SSE |
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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