STARLINK-1540, 46051
Orbit data source: Space-Track
STARLINK-1540, 46051 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Fri, 07 Aug 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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46051 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: 13 hours ago
TLE from 13 hours ago
0 STARLINK-1540
1 46051U 20055AA 25341.80986743 .00000731 00000-0 67993-4 0 9997
2 46051 53.0548 169.0834 0001180 77.8210 282.2912 15.06396945295199Epoch: 2025-12-07T19:26Z
TLE epoch observation values (Epoch: 2025-12-07T19:26:12.545Z)
Latitude
0.00003°
Longitude
160.71323°
Altitude
547.926 km
Speed
7.589 km/s
True Right ascension
11h 16m 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
07:00:26
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
548.309 km
Perigee altitude
546.674 km
Semi-major axis
6,925.629 km
Eccentricity
0.00012
Inclination
53.0548°
RAAN
169.0834°
Arg. of periapsis
77.821°
True anomaly
282.27799°
Mean anomaly
282.2912°
Eccentric anomaly
282.28459°
Mean motion
3.76578 °/min
Orbital period
95.6 mins
BSTAR
0.000067993
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Other satellites on launch #55 in the year 2020 (2020-08-07 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-1540 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 | 2025-12-08 14:42:26.623Z | 195.025° SSW | 2025-12-08 14:45:26.623Z | 125.884° SE | 31.711° | 2025-12-08 14:48:26.623Z | 68.019° E |
| 6 mins | 2025-12-08 16:22:26.623Z | 275.647° WNW | 2025-12-08 16:24:26.623Z | 318.195° NNW | 28.698° | 2025-12-08 16:28:26.623Z | 35.678° NE |
| 6 mins | 2025-12-08 21:24:26.623Z | 333.43° NNW | 2025-12-08 21:26:26.623Z | 24.636° NE | 33.669° | 2025-12-08 21:30:26.623Z | 104.586° ESE |
| 5 mins | 2025-12-08 23:04:26.623Z | 266.846° W | 2025-12-08 23:06:26.623Z | 217.742° SW | 24.994° | 2025-12-08 23:09:26.623Z | 170.34° 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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