Changes between Version 219 and Version 220 of PublicPages/MayallZbandLegacy/NotesforObservers

Timestamp:

Dec 18, 2017 1:36:35 PM (7 years ago)

Author:

Robert Blum

Comment:

--

PublicPages/MayallZbandLegacy/NotesforObservers

@@ -332 +332 @@
 Focus(zd) = -10940+(22.9-Ttruss)x110
     }}}
-    For convenience, you can create these two Python functions:
-    {{{
-focus = lambda x: -8400 + (1.4 - x)*110
-focuswarm = lambda x: -10940 + (22.9 - x)*110
+    For convenience, you can create these two Python functions in a python terminal:
+    {{{
+>>>focus = lambda x: -8400 + (1.4 - x)*110
+>>>focuswarm = lambda x: -10940 + (22.9 - x)*110
+>>>focus(x); where x is the current Truss temp in deg C 
     }}}
  1. Ask the telescope operator to point to an MzLS coordinate to do the pointing check. We like to pick a coordinate which is close to the meridian and still within the footprint. For the start of B semester nights in August-October, please use the pointing coordinate 280.0, +50.0. At other times, you can use the first tile in the json file in pass 3 (for normal case, or json of forced pass if starting up non standard). The coordinates of the first tile can be found by: