To facilitate entry into the Chapter at different reading times, it has been divided into the following sections. The first entry is the same as starting at the beginning.<\/p>\n
“Contact!”<\/strong><\/span><\/a><\/p>\n Day Six \u2013 Landing in the Valley of Taurus-Littrow<\/strong><\/span><\/a><\/p>\n Challenger Wakes Up: Power and Environmental Control<\/strong><\/span><\/a><\/p>\n Computer, Guidance, and Communications<\/strong><\/span><\/a><\/p>\n Attitude Control<\/strong><\/span><\/a><\/p>\n Hatch Closing and Rendezvous Radar<\/strong><\/span><\/a><\/p>\n Suit Loop and Cabin Pressure Integrity<\/strong><\/span><\/a><\/p>\n Undocking<\/strong><\/span><\/a><\/p>\n Landing Radar Checkout<\/strong><\/span><\/a><\/p>\n Descent Propulsion System Checkout<\/strong><\/span><\/a><\/p>\n Descent Propulsion System Pressurization and Checkout<\/strong><\/span><\/a><\/p>\n AGS Activation<\/strong><\/span><\/a><\/p>\n AGS Control and Rendezvous Radar Checks<\/strong><\/span><\/a><\/p>\n Inertial Measuring Unit Fine Alignment<\/strong><\/span><\/a><\/p>\n Crew Optical Alignment System (COAS) Calibration<\/strong><\/span><\/a><\/p>\n AGS Calibration<\/strong><\/span><\/a><\/p>\n Descent Orbit Insertion \u2013 2<\/strong><\/span><\/a><\/p>\n