Subject: 3.5m Night Log 20161111
From: cgray@apo.nmsu.edu
Date: Sat, 12 Nov 2016 11:23:56 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Friday, November 11, 2016
                                                           ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
--------------------------------------------------------------------
M.Klaene          B.Ketzeback           X              --:--   --:--
   INST       SCHEDULED     WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B    D    B
 ----------------------------------------------------------------
EN01/W     17:13   06:23   2.2 11.0   0    0    0    0    0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: C.Gray
Clouds. Sleet. Rain.  Humidity. Fog. 4 horseman.
The weather was bad all night. We pushed the humidity limit for a few min at 23:00 but only long enough to focus and determine that the wind and seeing were too variable to complete the focus comparison between dis and dcam and we closed back up.  We were only able to complete DIS tasks tonight.
===DIS===
Using the pinhole slit, light halos are visible in the 2D spectra but the Gaussian of the points looks clean with no or minimal contamination.
We tested the new 5.0" slit and it is thicker than the other slits and the holder plates on either side do not fit properly, causing them to stick out and not lie flush with the back of the slit wheel. We took off the normal holders and tried small teflon ones that were holding another slit in the spare wheel.  It worked!  A new dcam mask was taken and applied.
Looking at column cuts of the 2D spectra show that the new slit does have sharper edges.
                    ------- FAILURE LOG -------
PROG   INST   FAILURE MODE     TIME
    (SEDFNVOG)   TI/SHU    START  FINISH  DESCRIPTION
----------------------------------------------------------------------
            ---------------- FOCUS LOG ---------------
Time  Instrument  Focus     Az  El  Temp Strc Prim  Sec  Air  filt  FWHM
--------------------------------------------------------------------------
 22:54 dcamera    758(  338) 229  78   0.4  1.7  2.8  1.6  0.7   --  2.74
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    37    33      1   210  (SSW)        mstly cldy  humid
     17:00    36    32      3   168  (SSE)        mstly cldy  humid
     18:00    35    31      1   108  (ESE)        mstly cldy   rain
     19:00    34    31     18    66  (ENE)        mstly cldy  humid
     20:00    33    30     18    62  (ENE)        mstly cldy  humid
     21:00    33    30     14    56   (NE)         ptly cldy  humid
     22:00    33    30     15    67  (ENE)         ptly cldy  humid
     23:00    32    29     20    74  (ENE)        mstly clr   humid
     00:00    32    29     21    73  (ENE)        mstly clr   humid
     01:00    32    30     17    74  (ENE)         ptly cldy  humid
     02:00    31    29     13    76  (ENE)         ptly cldy  humid
     03:00    32    29     14    75  (ENE)         ptly cldy  humid
     04:00    31    29     12    78  (ENE)         ptly cldy  humid
     Note: the wind was coming from the azimuth listed.
     The convention used is north=0 degrees, east=90 degrees.
     The dust count is particles > 1u per 0.1 cubic feet.
                          TELESCOPE STATUS
    Telescope drives operational. Current TCC version: 1.2.2
    Current TUI version: 2.5.1