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NotesforObservers

-                      v45
+                      v46
 Check that all is well by taking a test zero exposure.
 On the IRAF window, check the image statistics by cd-ing to the correct directory and typing "mscstat <filename>"
+All rms values should be about 4-6 adu/pix; the exception is amplifier [6] which has an rms~8-10adu/pix.
+If any one amplifier shows very high noise, then execute the following commands in a nocs window:
+{{{
+nocs reset ccp
+nocs init ccp
+}}}
+Then take two more zeros; the first one will be junk, but the second one should be OK.
 = [7] Take dome flats and zeros =
 …
 ''No on-sky observations are permitted before 12 deg twilight.''
+. Take a zero image to ensure everything is working
 . 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).
 . Move to the beginning of the first MzLS tile position
 …
 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'''
+**[wiki:MayallZbandLegacy/NotesforObservers/FocusInfo Example of a focus sequence]
 If conditions change compared to assumptions for the script, re-run strategy.