A TEMPORARY code to identify, given the dsi or dwfs number of the IHMP, the corresponding IFUSLOT designation. The sky offsets from dwfs8 (in arcsec units) are also given.
% dsi 10 115 -548 +33 % dsi 8 Center 0 0 % dsi 2 091 -357 -342Hence, dsi10 is in IFUSLOT115. To move the HET so that a target centered at the X,Y_IHMP center (currently X,Y=178,391 in the ACAM system) to the input dsi/dwfs number we would use SKY offsets of dX=-548 and dY=+33.
This "dsi" routine is really just a temporary routine for use during the WFC commissioning when a set of cameras (dsi and dwfs) were installed in the IHMP to conduct a variety of optical tests. In lots of cases, especially for SCO's IHMP visualization tools, it is also useful to know the X,Y in the IHMP system for a given IFUSLOT number. We use the ifuslot script for that (which actaully just calls the vir_ifu_pat.sh routine in a special way). Here is a sample call:
% ifuslot 115 -550.00 -50.00 % ifuslot boot_head -99999.00 -99999.00