Changes between Version 2 and Version 3 of PublicPages/MayallZbandLegacy/NotesforObservers/Problems

Timestamp:

Feb 4, 2016 12:40:45 AM (8 years ago)

Author:

Robert Blum

Comment:

--

PublicPages/MayallZbandLegacy/NotesforObservers/Problems

@@ -36 +36 @@
 This is very hard to diagnose, and requires you paying attention to the images, and occasionally running the command: 
 
-hselect mos*fits[0] $I,READTIME yes 
+hselect mos3*fits[0] $I,READTIME yes 
 
-in the IRAF window. If the READTIME values begin to repeat, this is a sign that new images are not being written out. Another clue is that the read out counter on the NMSL gui goes straight from 44 to 0. A third clue is that the MOSSTAT command is failing to find any stars in the image, even though the offsets were small when the sequence was started. 
+in the IRAF window. 
+
+If the READTIME values begin to repeat, this is a sign that new images are not being written out. Another clue is that the read out counter on the NMSL gui goes straight from 44 to 0. A third clue is that the MOSSTAT command is failing to find any stars in the image, even though the offsets were small when the sequence was started. 
 
 If any of these are true, then it means that the images are just duplicates of previous images. You need to stop the sequence using CTRL-C in the window where the script is being exectuted, and restart everything: 
         - Stop MOSAIC (from the startup gui)
-        - Stop Cameras (from the startup gui)
         - In a NOCS xterm window, type: 
                 nocs nuke pana
                 nocs nuke dhs
-        - Start Cameras (from the startup gui)
         - Start MOSAIC (from the startup gui)
 Once everything comes up and you have rearranged windows how you like, take a ZERO frame to make sure that the amps are all OK. Check the noise on the zero image using mscstat. 
 If this is not OK, then see instructions for Problem 1. 
 
-Edit the script to delete all images up until the first repeat image. Make sure that you do not delete the commands that point to the first field you want to do. Restart the script.
+From here, it is best to make a new plan (strategy file) and start it up. 
 
 Log all the images that had identical READTIME values.