![]() “Katherine organized herself immediately at her desk, growing phone-book-thick stacks of data sheets a number at a time, blocking out everything except the labyrinth of trajectory equations,” Margot Lee Shetterly wrote in her 2016 book “Hidden Figures,” on which the film is based. “Get the girl to check the numbers,” a computer-skeptical Glenn had insisted in the days before the launch. The next year, she manually verified the calculations of a nascent NASA computer, an IBM 7090, which plotted John Glenn’s orbits around the planet. ![]() In 1961, Johnson did trajectory analysis for Alan Shepard’s Freedom 7 Mission, the first to carry an American into space. “You tell me when and where you want it to come down, and I will tell you where and when and how to launch it.” ![]() “Our office computed all the trajectories,” Johnson told the Virginian-Pilot newspaper in 2012. ![]()
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