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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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: 19 hours ago
TLE from 19 hours ago
0 STARLINK-1540
1 46051U 20055AA 26306.74212758 .00040872 00000-0 11400-2 0 9990
2 46051 53.1598 85.8304 0001314 22.1710 337.9350 15.36379106345563Epoch: 2026-11-02T17:48Z
TLE epoch observation values (Epoch: 2026-11-02T17:48:39.822Z)
Latitude
-0.00005°
Longitude
136.64966°
Altitude
456.897 km
Speed
7.64 km/s
True Right ascension
05h 43m 19s
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
09:05:55
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
457.983 km
Perigee altitude
456.186 km
Semi-major axis
6,835.221 km
Eccentricity
0.00013
Inclination
53.1598°
RAAN
85.8304°
Arg. of periapsis
22.171°
True anomaly
337.92934°
Mean anomaly
337.935°
Eccentric anomaly
337.93217°
Mean motion
3.84073 °/min
Orbital period
93.73 mins
BSTAR
0.00114
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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 | 2026-11-03 17:41:08.569Z | 337.028° NNW | 2026-11-03 17:43:08.569Z | 14.861° NNE | 22.855° | 2026-11-03 17:46:08.569Z | 78.303° E |
| 5 mins | 2026-11-03 19:19:08.569Z | 293.557° NW | 2026-11-03 19:21:08.569Z | 233.983° WSW | 51.206° | 2026-11-03 19:24:08.569Z | 150.514° SSE |
| 5 mins | 2026-11-04 12:10:08.569Z | 249.992° W | 2026-11-04 12:12:08.569Z | 302.27° NW | 53.662° | 2026-11-04 12:15:08.569Z | 39.353° NE |
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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