The Contributing Cause of The Accident. In: Report of the Presidential Commission on the Space Shuttle Challenger Accident. Abgerufen am 20. August 2015 (englisch): „[…] it was going to get near freezing or freezing before midnight. It could get as low as 22 degrees as a minimum in the early morning hours, probably around 6:00 o’clock, and that they were predicting a temperature of about 26 degrees at the intended launch time, about 9:38 the next morning.“