The FOC was constructed by ESA, while the University of California, San Diego and the Martin Marietta corporation built the FOS.The final instrument was the HSP, designed and built at the University of Wisconsin-Madison.. 
Bach Louis Ṣúun Olókìkí rẹ̀ àti Fugue ní D kékeré (bWW 565) àti Cantatas àkọ́kọ́ rẹ̀ lakoko tí ó wà ní ọdúnọdúnst.. 