7.9 Early Acquisitions and Preliminary Images
In some situations an observer may need to get an independent ultraviolet image of a region in order to be sure that no objects violate safety limits and that the target to be observed can be acquired by COS successfully. Such an early acquisition should be included in the Phase I proposal, and the observation should not use a photon-counting detector. The UVIS channel on WFC3 is recommended, but observers are encouraged to consult with an STScI instrument scientist.
