EXCHANGER FREON LOOP FUEL CELLS AFT COLOPLATES GROUND.
UPPER STAGE JPL JET PROPULSION LABORATORY JSC JOHNSON SPACE CENTER MCC MISSION CONTROL CENTER POCC PAYLOAD OPERATIONS CONTROL CENTER STON SPACE TRACKING AND DATA RELAY SATELLITE.
UPPER STAGE JPL JET PROPULSION LABORATORY JSC JOHNSON SPACE CENTER MCC MISSION CONTROL CENTER POCC PAYLOAD OPERATIONS CONTROL CENTER STON SPACE TRACKING AND DATA RELAY SATELLITE.