Acms Fdir System for the Herschel/planck Satellites Bos, J. F. T. ; Zorita, D. ; Bacchetta, A. ; Chlewicki, G. ; Guichon, D. ; Rasmussen, I. Abstract Publication: Guidance, Navigation and Control Systems Pub Date: January 2006 Bibcode: 2006ESASP.606E..36B