The IM-2 lander is beginning its vertical descent where the lander’s Guidance and Navigation Control system flies the lander to a point approximately 98 feet (30 meters) above the designated landing site. Then the lander goes into a vertical descent at about 10 feet-per-second (3-meters-per-second). After that, the lander brakes to a 3-feet-per-second (1-meter-per-second) descent rate...