Changes between Version 7 and Version 8 of PublicPages/MayallZbandLegacy/NotesforObservers/MosBot

Timestamp:

Feb 8, 2016 12:34:33 PM (9 years ago)

Author:

Dustin Lang

Comment:

--

PublicPages/MayallZbandLegacy/NotesforObservers/MosBot

@@ -31 +31 @@
   should be, and it overwrites the little shell scripts in `/mosaic3/exec/mosbot/` to adjust the next few exposures.
 
+After each exposure, the `tonight.sh` script checks for the existence of the file `/mosaic3/exec/mosbot/quit`.  If that file exists, 
+the script will quit after a readout (without slewing).  This should ensure that we don't lose any data, and is the way the `tonight.sh` script should be stopped.  (It will delete the `quit` file just before it quits.)
 
-Comments about how this works:
 
+Comments:
 - mosbot by default starts with PASS 2 observations.  And by default,
   we set all the exposure times to our minimum exposure time of 80
@@ -40 +42 @@
   `tonight.sh` script, you will run pass 2 with short exposures all
   night long.  This is almost certainly not what we want to happen!!
+- On the other hand, if you need to run a focus sequence, restart the
+  MOSAIC control software, or otherwise stop observing, you can just
+  ctrl-C the mosbot.py script.  HOWEVER, you should re-run the mosbot.py
+  script to generate a new `tonight.sh` script before you re-start observing.
 - The `tonight.sh` script is not smart.  Each exposure is written to a
   script, and the scripts are numbered.  If you kill and re-start
@@ -54 +60 @@
   happens in `expose-3.sh`, which takes the exposure, and then
   `slewread-4.sh` slews to exposure number 4 while reading out
-  exposure 3.  If the file `quit` is found in the directory in which
-  `tonight.sh` is run, the script will quit after a readout (without
-  slewing).  This should ensure that we don't lose any data, so that
-  is the way the `tonight.sh` script should be stopped.  (It will
-  delete the `quit` file just before it quits.)
+  exposure 3.
 
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