Postcard from the Summit – Testing Andrew and Issac running tests with TSIM at the Keck 2 Secondary, photo by Randy Campbell Share this: Share on WhatsApp (Opens in new window) WhatsApp Share on Reddit (Opens in new window) Reddit Email a link to a friend (Opens in new window) Email Author: Andrew An electrical engineer, amateur astronomer, and diver, living and working on the island of HawaiĘ»i. View all posts by Andrew