... Mark Abernathy, Space Telescope Science Institute, 3700 San Martin Dr., Baltimore, MD 21218, USA (abernathy@stsci.edu) . Faith Abney, Space Telescope Science Institute, 3700 San Martin Dr., Baltimore, MD 21218, USA (abney@stsci.edu) . ... David Adler, Space Telescope Science Institute/Computer Sciences Corporation, 3700 San Martin Dr., Baltimore, MD 21218, USA (adler@stsci.edu) . ... John Baum, Space Telescope Science Institute, 3700 San Martin Dr., Baltimore, MD 21218, USA (baum@stsci.edu) . ...
Instrument Science Report ACS 2004-05 Results of UV Contamination Monitoring of the Advanced Camera for Surveys F. R. Boffi, R. C. Bohlin, G. De Marchi April 8, 2004 ABSTRACT Proposals 9010, 9565 and 9655 (currently in progress) are devoted to the observation of the star cluster ngc 6681 to monitor the UV performance of the HRC and SBC detectors in ACS. ... The three HRC filters f220w, f250w and f330w, do not show sensitivity changes by more than 1%. ...