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 25332.07350897 .00006215 00000-0 43570-3 0 9991
2 46685 53.0567 353.0571 0001283 91.1953 268.9183 15.06404972281593Epoch: 2025-11-28T01:45Z
TLE epoch observation values (Epoch: 2025-11-28T01:45:51.175Z)
Latitude
0°
Longitude
-100.62743°
Altitude
548.093 km
Speed
7.589 km/s
True Right ascension
23h 32m 13s
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
15:29:26
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
548.355 km
Perigee altitude
546.578 km
Semi-major axis
6,925.604 km
Eccentricity
0.00013
Inclination
53.0567°
RAAN
353.0571°
Arg. of periapsis
91.1953°
True anomaly
268.9036°
Mean anomaly
268.9183°
Eccentric anomaly
268.91095°
Mean motion
3.7658 °/min
Orbital period
95.6 mins
BSTAR
0.0004357
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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 | 2025-11-29 03:23:22.038Z | 194.943° SSW | 2025-11-29 03:26:22.038Z | 146.097° SSE | 28.203° | 2025-11-29 03:30:22.038Z | 68.034° E |
| 5 mins | 2025-11-29 05:04:22.038Z | 277.253° WNW | 2025-11-29 05:06:22.038Z | 331.947° NNW | 31.154° | 2025-11-29 05:09:22.038Z | 32.938° NE |
| 6 mins | 2025-11-29 10:05:22.038Z | 329.685° NNW | 2025-11-29 10:08:22.038Z | 41.177° NE | 31.315° | 2025-11-29 10:11:22.038Z | 97.419° ESE |
| 5 mins | 2025-11-29 11:45:22.038Z | 279.163° WNW | 2025-11-29 11:47:22.038Z | 234.7° WSW | 28.171° | 2025-11-29 11:50:22.038Z | 170.977° S |
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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