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HABITAT USE OF THE SPACE STATION BIOLOGICAL RESEARCH PROJECT CENTRIFUGE ROTOR Carol Elland¹, Debra Reiss-Bubenheim², Charles E. Wade^{2 1}Lockheed Martin Space Operations ²NASA. Space Station Biological Research Project, NASA Ames Research Center, Moffett Field, CA 94035 

   The NASA Ames Space Station Biological Research Project (SSBRP) is developing hardware to accommodate long-duration experiments for a variety of research organisms on the International Space Station. Through agreements between NASA and the National Space Development Agency of Japan (NASDA) a 2.5-meter Centrifuge Rotor that supports a variety of habitat types is being developed. The Centrifuge Rotor will provide a selectable, simulated gravity environment for biological specimens on the Space Station in the Centrifuge Accommodation Module (CAM) and can accommodate four habitats. The controlled artificial gravity ranges from 0.01-g to 2-g. Scientists can compare the effects of different gravitational forces on specimens. All of the necessary resources to support the habitats, such as electrical power, component cooling, specimen air, and command and data transfer links to computers on the International Space Station, will be provided by the Centrifuge Rotor. Centrifuge rotation is limited to habitat configurations where pairs of habitats are located on opposing arms at the same radius.  Possible locations for various sized SSBRP Habitat pairs on the Centrifuge Rotor, a graphic depiction of the common g-reference plane for all habitats, g-levels at various locations, and an assessment of Coriolis effects is made.