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keisanHigh-precision calculations for everyday life and work

Distance and azimuth from home to Tokyo Skytree

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Calculate the distance and azimuth from your home to broadcast towers such as Tokyo Skytree and Tokyo Tower.
Enter west longitude and south latitude as negative values.
Home:
Longitude,
Latitude
Tower:
[ ,
]
Distance from home d km
            Azimuth φ ° =  

Direction from home
       
Calculations are based on the Earth as a sphere with an equatorial radius of r=6378.137 km.
Azimuths are measured in degrees: North: 0 degrees, East: 90 degrees, South: 180 degrees, West: 270 degrees.

Location A (longitude x1, latitude y1), Location B (longitude x2, latitude y2)
\(\normalsize\\ d=r \cos^{\tiny -1}(\sin y_{\tiny 1}\sin y_{\tiny 2}+ \cos y_{\tiny 1} \cos y_{\tiny 2} \cos\Delta x)\\ \phi=90- atan2(\sin \Delta x,\ \cos y_{\tiny 1} \tan y_{\tiny 2}- \sin y_{\tiny 1} \cos\Delta x)\\ \hspace{50px}\Delta x=x_{\tiny 2}-x_{\tiny 1}\)

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