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: 10 hours ago
TLE from 10 hours ago
0 STARLINK-1540
1 46051U 20055AA 25333.05208689 .00002442 00000-0 18277-3 0 9992
2 46051 53.0528 208.3972 0001549 85.1207 274.9959 15.06395902293878Epoch: 2025-11-29T01:15Z
TLE epoch observation values (Epoch: 2025-11-29T01:15:00.307Z)
Latitude
0°
Longitude
121.46009°
Altitude
548.01 km
Speed
7.589 km/s
True Right ascension
13h 53m 35s
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
09:13:46
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
548.568 km
Perigee altitude
546.422 km
Semi-major axis
6,925.632 km
Eccentricity
0.00015
Inclination
53.0528°
RAAN
208.3972°
Arg. of periapsis
85.1207°
True anomaly
274.97822°
Mean anomaly
274.9959°
Eccentric anomaly
274.98706°
Mean motion
3.76577 °/min
Orbital period
95.6 mins
BSTAR
0.00018277
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Other satellites on launch #55 in the year 2020 (2020-08-07 UTC)
Did you know?
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 | 2025-11-29 17:19:47.407Z | 160.316° S | 2025-11-29 17:21:47.407Z | 125.889° SE | 17.17° | 2025-11-29 17:23:47.407Z | 92.297° ESE |
| 6 mins | 2025-11-29 18:58:47.407Z | 249.827° W | 2025-11-29 19:00:47.407Z | 315.913° NNW | 41.52° | 2025-11-29 19:04:47.407Z | 44.627° NE |
| 4 mins | 2025-11-29 20:39:47.407Z | 319.549° NNW | 2025-11-29 20:40:47.407Z | 337.51° N | 16.947° | 2025-11-29 20:43:47.407Z | 25.484° NE |
| 5 mins | 2025-11-30 00:00:47.407Z | 346.556° N | 2025-11-30 00:02:47.407Z | 30.126° NE | 23.25° | 2025-11-30 00:05:47.407Z | 80.773° E |
| 6 mins | 2025-11-30 01:39:47.407Z | 299.278° NW | 2025-11-30 01:42:47.407Z | 191.622° SSW | 40.395° | 2025-11-30 01:45:47.407Z | 144.519° SSE |
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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