Changes between Version 16 and Version 17 of PublicPages/MayallZbandLegacy/NotesforObservers/Problems

Timestamp:

Feb 5, 2016 2:16:19 PM (8 years ago)

Author:

David Schlegel

Comment:

--

PublicPages/MayallZbandLegacy/NotesforObservers/Problems

@@ -3 +3 @@
 
 
-=== 1. Count-down timer counting negative and no new images read ===
+=== 1. Detector timeouts ===
 
-'''Symptom''': Count-down timer keeps counting down negative numbers, and no new images are read.
+'''Symptom''': Count-down timer in NMSL GUI turns red keeps counting down negative numbers (to -105 or so), and no new images are read.
 
 '''Frequency''': Several times per night in the early Feb 2016 run.
 
-'''Fix:''' Arjun types magic things.
+'''Fix:'''
+- Restart the controllers
+{{{
+       ditscmd nohs nohs_endobs
+       nocs nmsl reset
+}}}
+- Take a zero image, make sure it rads out, and check the image by running "mscstat"
+- Create and start a new observing script
+
 
 === 2. Images show bad amp ===
@@ -79 +87 @@
 Log all the images that had identical READTIME values. 
 
-=== 6. Detector Timeouts ===
 
-Occasionally, the numbers on the countdown timer on the NMSL GUI will turn red during readout, and the timer will read down to -105 or so. 
-When this happens, it usually means that the image is lost. You can try the following:
-       - ditscmd nohs nohs_endobs
-       - nocs nmsl reset
-Then try taking a zero image. See if it reads out, and check the image using mscstat. 
-If it looks ok, you can start a new observing script. 
-However, pay attention to make sure that the next few images are written out.
-
-=== 7. Focus drifting ===
+=== 6. Focus drifting ===
 
 If you lose track of the focus and don’t know whether you are below or above the focus value, wait for the readout countdown to start 
@@ -117 +116 @@
 - Restart observing
 
-=== 8. Images of stars on the guider are bouncing around ===
+=== 7. Images of stars on the guider are bouncing around ===
         - If the wind is high, ask the OA to close the louvers