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Engineering and Technology Colloquia Series

CITIZEN CATE Outcomes from the 2017 total solar eclipse, and plans for 2024

Presented by: Richard Gelderman (Western Kentucky University)
Category: Engineering Colloquia   Duration: 1 hour and 30 minutes   Broadcast date: October 11, 2018
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ABSTRACT: During the 21 August 2017 solar eclipse, the Citizen Continental-America Telescopic Eclipse Experiment [CATE] deployed 68 identical telescope/detector systems along the path of totality from Oregon to South Carolina. At any one site the solar corona was observed for about 2 minutes, but the combined data set reveals evolution of the corona over 93 minutes. Throughout totality, each site collected sequences of 8 exposures of the inner corona, from 0.4 msec up to 1.3 sec duration, and these exposures were used to produce one high-dynamic range image every 2.1 seconds. Volunteers from universities, high schools and amateur astronomy clubs uploaded white light images with 1.5 arcsec pixel spatial resolution (yielding transverse velocity sensitivity better than 150 km/s) collected from 56 of the 68 sites. CATE was funded with a collaboration of federal, corporate and private groups.