No guide stars found

• First check that you have entered the correct position and equinox into the GSS.
• Are the guide probes at their requested position on the Mimic? If not repeat the GDXY command.
• From the Mimic, check the autoguider ND and Colour filter codes. Using Table 3, check that BOTH of these correspond to clear, UBK7 filters, matched to the thickness of the CCD filter you're using. If the colour one were set to UV, you're not going to see very much on the autoguider raster.
• Check that the UT and LST of the TCS computer are the same of that in the INT and/or WHT.
• Given the fairly awful pointing of the JKT, unless you have finding charts and use the TV for acquisition, then your target (and guide star) could possibly be more than 60 arcs from where you expect it to be, in which case it was fall outside the 2 arcmin autoguider raster.
• Faint guide star - bright moon?
• The calibrate was not done centred on the actual rotator centre. Maybe the translucent ring needs to be moved on the TV monitor.