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: 17 hours ago
TLE from 17 hours ago
0 STARLINK-1540
1 46051U 20055AA 25311.68839285 -.00002196 00000-0 -12864-3 0 9993
2 46051 53.0548 304.3040 0001450 87.1638 272.9517 15.06379790290652Epoch: 2025-11-07T16:31Z
TLE epoch observation values (Epoch: 2025-11-07T16:31:17.142Z)
Latitude
-0°
Longitude
9.35381°
Altitude
548.101 km
Speed
7.589 km/s
True Right ascension
20h 17m 12s
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
05:23:24
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
548.548 km
Perigee altitude
546.54 km
Semi-major axis
6,925.681 km
Eccentricity
0.00015
Inclination
53.0548°
RAAN
304.304°
Arg. of periapsis
87.1638°
True anomaly
272.93511°
Mean anomaly
272.9517°
Eccentric anomaly
272.9434°
Mean motion
3.76573 °/min
Orbital period
95.6 mins
BSTAR
-0.00012864
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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. |
|---|---|---|---|---|---|---|---|
| 4 mins | 2025-11-08 10:36:37.931Z | 266.835° W | 2025-11-08 10:38:37.931Z | 233.34° WSW | 16.832° | 2025-11-08 10:40:37.931Z | 199.592° SSW |
| 7 mins | 2025-11-09 02:08:37.931Z | 227.372° WSW | 2025-11-09 02:11:37.931Z | 171.411° S | 44.927° | 2025-11-09 02:15:37.931Z | 50.996° ENE |
| 5 mins | 2025-11-09 03:49:37.931Z | 300.001° NW | 2025-11-09 03:51:37.931Z | 337.746° N | 20.192° | 2025-11-09 03:54:37.931Z | 27.46° NE |
| 4 mins | 2025-11-09 07:11:37.931Z | 350.36° N | 2025-11-09 07:13:37.931Z | 29.417° NE | 19.025° | 2025-11-09 07:15:37.931Z | 62.903° ENE |
| 6 mins | 2025-11-09 08:50:37.931Z | 311.879° NW | 2025-11-09 08:53:37.931Z | 112.993° SE | 43.559° | 2025-11-09 08:56:37.931Z | 128.359° SE |
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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