We analyze the STIS NUV MAMA flats collected during cycles 11, 17 and 19. The data collected within each cycles are normalized in a p-flat following two different methods. The two methods are compared and discussed. The evolution of the p-flat with time is presented, too, confirming the trend already reported by Brown et al. (2002).
E. Mason 14 Feb 2013
This report presents the definitions and relationships between the various coordinate frames used with STIS.
G. Hartig 29 Mar 2001