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: 1 day ago
TLE from 1 day ago
0 STARLINK-1540
1 46051U 20055AA 25345.45895414 .00000194 00000-0 31899-4 0 9995
2 46051 53.0550 152.7022 0001293 79.1718 280.9416 15.06395210295742Epoch: 2025-12-11T11:00Z
TLE epoch observation values (Epoch: 2025-12-11T11:00:53.637Z)
Latitude
-0.00007°
Longitude
-92.93597°
Altitude
547.936 km
Speed
7.589 km/s
True Right ascension
10h 10m 48s
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
11:41:05
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
548.392 km
Perigee altitude
546.601 km
Semi-major axis
6,925.634 km
Eccentricity
0.00013
Inclination
53.055°
RAAN
152.7022°
Arg. of periapsis
79.1718°
True anomaly
280.92705°
Mean anomaly
280.9416°
Eccentric anomaly
280.93433°
Mean motion
3.76577 °/min
Orbital period
95.6 mins
BSTAR
0.000031899
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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. |
|---|---|---|---|---|---|---|---|
| 7 mins | 2025-12-12 14:16:36.068Z | 242.841° WSW | 2025-12-12 14:19:36.068Z | 291.966° WNW | 40.665° | 2025-12-12 14:23:36.068Z | 43.935° NE |
| 4 mins | 2025-12-12 15:58:36.068Z | 314.742° NW | 2025-12-12 16:00:36.068Z | 350.903° N | 16.84° | 2025-12-12 16:02:36.068Z | 22.129° NNE |
| 5 mins | 2025-12-12 19:19:36.068Z | 342.232° N | 2025-12-12 19:21:36.068Z | 22.59° NE | 23.196° | 2025-12-12 19:24:36.068Z | 77.751° E |
| 6 mins | 2025-12-12 20:58:36.068Z | 300.877° NW | 2025-12-12 21:01:36.068Z | 214.421° SW | 41.648° | 2025-12-12 21:04:36.068Z | 145.134° SSE |
| 5 mins | 2025-12-13 12:32:36.068Z | 166.735° S | 2025-12-13 12:34:36.068Z | 124.88° SE | 22.195° | 2025-12-13 12:37:36.068Z | 76.045° E |
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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