. Hubble Space Telescope . Cycle 8 . Call for Proposals . and . Phase I Proposal Instructions . Deadline: September 11, 1998, 8:00 pm EDT . Issued June 1998 . This is the Cycle 8 Call for Proposals for astronomical observations with the Hubble Space Telescope by members of the international scientific community. The Call for Proposals was prepared by the Science Program Selection Office at the Space Telescope Science Institute (STScI). The Space Telescope Science Institute is operated by the Association of
... Up: Data and Image Processing . ... Software tools have been developed to allow observers to examine and correct NICMOS images for the presence of residual bias signal. ... This has the effect of leaving a residual bias signal in the data after subtraction of the first image in a set of non-destructive readouts that comprise a typical NICMOS exposure (known as a ``Multiaccum'' exposure). ... The presence of this residual bias signal has several deleterious effects on the data. ...