... In this case ACQ/IMAGE may be employed and will result in the most efficient COS acquisition strategy. ... An ACQ/SEARCH should be inserted prior to the ACQ/IMAGE . ... If the GSC2 coordinates are not sufficiently accurate for the target to fall within the COS PSA or BOA upon the initial HST pointing but the object is safe to observe with MIRRORA or MIRRORB , then the target acquisition sequence should begin with ACQ/SEARCH and be completed with an ACQ/IMAGE (this is a variation on scenario 2). ...