MISSION CONTROL CENTER STS-70 Status Report #4 Saturday, July 15, 1995, 9 a.m. CDT Halfway through its third day in space, Discovery's crew has settled into a routine of conducting and monitoring nearly 20 different science experiments on the orbiter's middeck and flight deck. Pilot Kevin Kregel and Mission Specialist Don Thomas began the day working with the HERCULES camera which will record pinpoint data on the surface location of Earth observations images. A first attempt to align the camera's Inertial Measurement Unit was unsuccessful, but the crew attributed this to a need for some practice with the procedure, which involves locating two stars with the camera in different orientations. Mission Specialist Mary Ellen Weber checked the Bioreactor Demonstration System and found the cells there to be developing well. She also participated in visual function data gathering. Weber's test followed a report that Kregel had successfully extricated a mote from her eye. The workday began shortly after two o'clock this morning with a wakeup call from Kate Smith singing "Beautiful Ohio" in honor of four of the five crewmembers being from that state. Kregel claims New York as his home state. Commander Tom Henricks is scheduled to talk with a disabled veteran at 8:42 a.m. CDT, while Thomas, Weber and fellow Mission Specialist Nancy Currie will be interviewed by ABC's Mike and Maty Show at 1:12 p.m. Henricks will talk with the Toledo Blade at 1:52 p.m. Discovery continues to function flawlessly as it orbits the Earth every 90 minutes at an altitude of 200 miles. -- end --