Changes between Version 18 and Version 19 of PublicPages/MayallZbandLegacy/NotesforObservers

Timestamp:

Dec 14, 2015 1:23:38 AM (9 years ago)

Author:

Arjun Dey

Comment:

--

PublicPages/MayallZbandLegacy/NotesforObservers

@@ -2 +2 @@
 
 '''Still need to incorporate the following instructions:'''
-  - '''Afternoon biases and flats'''
   - '''Pointing the telescope, and re-zeroing the pointing using the numbers reported by MOSSTAT'''
   - '''Focusing the camera'''
@@ -328 +327 @@
 This will run mosstat on each frame as it shows up and display the results on the screen. 
 
-=== Observe - all night long! ===
+=== Observe - start of night ===
 
 1. At start of night, check telescope pointing and zero the telescope coordinates using a bright star placed on the telescope boresight (defined as the center of the mosaic3 focal plane).
@@ -335 +334 @@
 
 3. Focus the telescope [[BR]]
- - create a focus script [[BR]]
+ 
+{{{
+- create a focus script [[BR]]
  - run the focus script from the /home/observer/exec directory [[BR]]
+ - analyze the focus image using mscstarfocus [[BR]]
+    - edit the mscfoc.cl script to correct the name of the image that needs to be analyzed [[BR]]
+    - mark about 10 stars around the image; mark the top star in each sequence using "m"; "q" to quit [[BR]]
  - log the Truss temperature [[BR]]
  - set the telescope focus [[BR]] 
- - focus the guiders [[BR]]
-
-4. Begin mzls*sh script
+ - focus the guiders; this way you can use the guider images to monitor focus drifts [[BR]]
+}}}
+
+=== Observe - all night long! ===
+
+Execute mzls*sh script
 
 In a nocs terminal window (on the mosaic3 computer): 
 Go to /home/observer/exec, and execute the mzls*.sh script.  
 
-Monitor focus by checking the image quality on each frame. The Mayall has astigmatism, so one can tell from the shape of the images which way to move the focus. 
+Monitor focus by checking the image quality on each frame. Keep track of the truss temperature variation and modify 
+the focus as needed. The Mayall has astigmatism, so one can tell from the shape of the images which way to move the focus. 
 
 '''need a figure here'''
+
+If conditions change compared to assumptions for the script, re-run strategy.