STARLINK-1781, 46685
Orbit data source: Space-Track
STARLINK-1781, 46685 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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46685 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: 16 hours ago
TLE from 16 hours ago
0 STARLINK-1781
1 46685U 20073R 25286.49318320 .00014911 00000-0 10175-2 0 9996
2 46685 53.0529 197.6776 0001551 72.4704 287.6455 15.06408316274727Epoch: 2025-10-13T11:50Z
TLE epoch observation values (Epoch: 2025-10-13T11:50:11.028Z)
Latitude
0.00003°
Longitude
-2.1635°
Altitude
547.74 km
Speed
7.59 km/s
True Right ascension
13h 10m 42s
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
22:10:12
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
548.531 km
Perigee altitude
546.383 km
Semi-major axis
6,925.594 km
Eccentricity
0.00016
Inclination
53.0529°
RAAN
197.6776°
Arg. of periapsis
72.4704°
True anomaly
287.62856°
Mean anomaly
287.6455°
Eccentric anomaly
287.63703°
Mean motion
3.7658 °/min
Orbital period
95.6 mins
BSTAR
0.0010175
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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-1781 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. |
|---|---|---|---|---|---|---|---|
| 7 mins | 2025-10-14 04:16:54.032Z | 298.077° NW | 2025-10-14 04:19:54.032Z | 242.756° WSW | 37.142° | 2025-10-14 04:23:54.032Z | 150.402° SSE |
| 5 mins | 2025-10-14 19:50:54.032Z | 178.51° S | 2025-10-14 19:52:54.032Z | 135.707° SSE | 26.17° | 2025-10-14 19:55:54.032Z | 75.84° E |
| 6 mins | 2025-10-14 21:29:54.032Z | 265.212° W | 2025-10-14 21:32:54.032Z | 344.962° N | 32.368° | 2025-10-14 21:35:54.032Z | 36.595° NE |
| 6 mins | 2025-10-15 02:31:54.032Z | 334.785° NNW | 2025-10-15 02:33:54.032Z | 17.239° NNE | 29.205° | 2025-10-15 02:37:54.032Z | 96.457° ESE |
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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