THIS IS A CO-INVESTIGATOR PROPOSAL FOR "STO-2: SUPPORT FOR 4TH YEAR OPERATIONS RECOVERY AND SCIENCE" WITH PROF. CHRISTOPHER K. WALKER (UNIVERSITY OF ARIZONA) AS PI. AS A PARTICIPANT IN THE STO-2 MISSION ASU WILL PARTICIPATE IN INSTRUMENT DESIGN AND CONSTRUCTION MISSION I&T FLIGHT OPERATIONS AND DATA ANALYSIS. ASU HAS UNIQUE CAPABILITIES IN THE FIELD OF DIRECT METAL MICROMACHINING WHICH IT WILL BRING TO BEAR ON THE STO-2 COLD OPTICAL ASSEMBLY FLIGHT MIXERS AND LO HARDWARE. IN ADDITION OUR EXTENSIVE EXPERIENCE WITH RECEIVER INTEGRATION AND TEST WILL SUPPLEMENT THE CAPABILITIES OF THE PI INSTITUTION DURING THE I&T PHASE AT THE UNIVERSITY OF ARIZONA CSBF (PALESTINE TX) AND IN ANTARCTICA. BOTH THE ASU PI AND STUDENT WILL ALSO PARTICIPATE IN DATA ANALYSIS AND PUBLICATION AFTER THE FLIGHT.