Challenge 5 – Estimating the Speed of the Lunar Shadow

This image shows the shadow of our moon as it passed across Earth during the March 9, 2016, total solar eclipse. It was obtained by the DSCOVR spacecraft located 1 million kilometers from Earth.

Problem 1 – For the August 17, 2017 eclipse, the distance from Newport, Oregon to Madras, Oregon is 232 km,  and the time at which the total solar eclipse is observed at these two locations differ by 0.0619 hours. What is the speed of the shadow between these towns?