Changes between Version 42 and Version 43 of PublicPages/MayallZbandLegacy/NotesforObservers/Problems

Timestamp:

Feb 12, 2016 2:07:54 PM (9 years ago)

Author:

Arjun Dey

Comment:

--

PublicPages/MayallZbandLegacy/NotesforObservers/Problems

@@ -163 +163 @@
 }}}
 Then do a focus sequence. 
-        - Create a focus script using the “Focus” button on the NGUI
-          This pops up the following window: 
-[[Image(NOCS_FOCUS.tiff, 600px)]]
-        - use a good guess for the mid-point: 
-                 focus in zd filter = -8400 + (1.4C - Ttruss)*110
-          * an instrument focus step of -100 (or -70, if the seeing is good)
-          * at least 7 focus iterations and 
-          * a detector pixel shift of 30; 
-          * Make sure you have chosen the zd filter
-        - execute the focus sequence
-- Edit the /data2/observer/mscfoc.cl script to change the file name of the focus image
-- In the IRAF window, type "mscfoc.cl" and follow the instructions
 - Once you have determined the best focus: 
                 - set the focus value in the MCCD window and hit “Apply”