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: 11 hours ago
TLE from 11 hours ago
0 STARLINK-1821
1 46718U 20073BA 26026.40238779 .00084691 00000-0 27448-2 0 9999
2 46718 53.0505 64.8712 0003720 350.6889 9.4041 15.31284151290858Epoch: 2026-01-26T09:39Z
TLE epoch observation values (Epoch: 2026-01-26T09:39:26.305Z)
Latitude
-0.00002°
Longitude
154.31293°
Altitude
470.354 km
Speed
7.634 km/s
True Right ascension
04h 19m 29s
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
21:38:43
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
474.802 km
Perigee altitude
469.706 km
Semi-major axis
6,850.391 km
Eccentricity
0.00037
Inclination
53.0505°
RAAN
64.8712°
Arg. of periapsis
350.6889°
True anomaly
9.41107°
Mean anomaly
9.4041°
Eccentric anomaly
9.40758°
Mean motion
3.82798 °/min
Orbital period
94.04 mins
BSTAR
0.0027448
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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 | 2026-01-27 04:36:39.964Z | 203.169° SW | 2026-01-27 04:39:39.964Z | 141.903° SSE | 32.782° | 2026-01-27 04:42:39.964Z | 67.109° ENE |
| 5 mins | 2026-01-27 06:15:39.964Z | 282.012° WNW | 2026-01-27 06:17:39.964Z | 328.581° NNW | 24.929° | 2026-01-27 06:20:39.964Z | 29.767° NE |
| 5 mins | 2026-01-27 11:12:39.964Z | 338.852° N | 2026-01-27 11:14:39.964Z | 44.012° NE | 31.551° | 2026-01-27 11:17:39.964Z | 102.068° ESE |
| 4 mins | 2026-01-27 12:50:39.964Z | 265.389° W | 2026-01-27 12:51:39.964Z | 241.983° WSW | 22.781° | 2026-01-27 12:54:39.964Z | 177.006° S |
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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