The "wide field camera" (WFC) covered a large angular field at the expense of resolution, while the "planetary camera" (PC) took images at a longer effective focal length than the WF chips, giving it a greater magnification.The GHRS was a spectrograph designed to operate in the ultraviolet.. 
NASA administrator sépinnu ó’Keefe decided that all future shuttle Misn had to be able to reach the safe haven of the international space station should in-flight problems Develop.. 