Changes between Version 193 and Version 194 of PublicPages/MayallZbandLegacy/NotesforObservers

Timestamp:

Feb 20, 2017 6:44:12 PM (8 years ago)

Author:

Andrea Kueter-Young

Comment:

--

PublicPages/MayallZbandLegacy/NotesforObservers

@@ -375 +375 @@
     }}}
     Whenever a new image is detected in the data directory (as defined by `$MOS3_DATA`), a new image is generated as `~/obsbot/recent.png`.
- 1. Monitor focus by checking the image quality on each frame or keeping an eye on the mosstat PSF display. Keep track of the truss temperature variation and use the information to modify  the focus as needed. Note that the focus may not respond quickly to changes in temperature, so monitor the images carefully before adjusting focus.  The Mayall has astigmatism, so one can sometimes tell from the shape of the images which way to move the focus.  To stop and do a focus sequence:
+ 1. Monitor focus by checking the image quality on each frame or keeping an eye on the mosstat PSF display. Keep track of the truss temperature variation and use the information to modify  the focus as needed. Note that the focus may not respond quickly to changes in temperature, so monitor the images carefully before adjusting focus.  The Mayall has astigmatism, so one can sometimes tell from the shape of the images which way to move the focus.  Here is a focus correction cheat sheet:
+
+
+To stop and do a focus sequence:
     - Create a file to tell tonight.sh to quit. On mosaic3:
       {{{