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, 4.4 m
Radar Cross Section
13.562 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 2 days ago
TLE from 2 days ago
0 STARLINK-1540
1 46051U 20055AA 25254.23197228 .00000530 00000-0 54486-4 0 9999
2 46051 53.0532 202.2340 0001566 80.5798 279.5368 15.06385772281997Epoch: 2025-09-11T05:34Z
TLE epoch observation values (Epoch: 2025-09-11T05:34:02.404Z)
Latitude
-0.00004°
Longitude
128.22696°
Altitude
547.955 km
Speed
7.589 km/s
True Right ascension
13h 28m 56s
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
03:17:32
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
548.611 km
Perigee altitude
546.442 km
Semi-major axis
6,925.663 km
Eccentricity
0.00016
Inclination
53.0532°
RAAN
202.234°
Arg. of periapsis
80.5798°
True anomaly
279.5191°
Mean anomaly
279.5368°
Eccentric anomaly
279.52795°
Mean motion
3.76575 °/min
Orbital period
95.6 mins
BSTAR
0.000054486
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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. |
|---|---|---|---|---|---|---|---|
| 5 mins | 2025-09-13 21:24:17.444Z | 171.76° S | 2025-09-13 21:27:17.444Z | 122.804° SE | 17.999° | 2025-09-13 21:29:17.444Z | 89.447° E |
| 6 mins | 2025-09-13 23:03:17.444Z | 246.899° WSW | 2025-09-13 23:06:17.444Z | 328.421° NNW | 40.672° | 2025-09-13 23:09:17.444Z | 40.843° NE |
| 5 mins | 2025-09-14 04:06:17.444Z | 348.331° N | 2025-09-14 04:08:17.444Z | 33.983° NE | 23.73° | 2025-09-14 04:11:17.444Z | 83.146° E |
| 6 mins | 2025-09-14 05:45:17.444Z | 296.781° NW | 2025-09-14 05:47:17.444Z | 254.947° W | 39.191° | 2025-09-14 05:51:17.444Z | 146.062° SSE |
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 ascending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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