Subject: 3.5m Night Log 20200803
From: dembicky@apo.nmsu.edu
Date: Tue,  4 Aug 2020 12:01:22 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Monday, August 03, 2020
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
EN01  B.Ketzeback       J.Dembicky
CG01  C.Gray            S.Kovac, B.Stemock
                         ACTUAL
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
EN01  DIS            20:08   21:43
CG01  Echelle        --:--   --:--
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
EN01/W      20:08  03:30    0   5.8   0    0   0.3  1.6   0    0
CG01/R      03:30  06:11    0    0    0    0   0.0  2.7   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: J.Dembicky
Checked NA2 rotator and it looked good (it was just re-zero'ed a couple of days ago).  No adjustment necessary.
We then opened to start things cooling for a DIS slitviewer vs. focuser check, clouds showed up to challenge us in our attempt.
Things looked like they were going to improve around 04:30 but clouds skimmed by us to our east, along with some lightning, and radar looked iffy.  We gave up at 05:30.
My Echelle IOL comp and flats were blank at the end of the night.  I took a second set.
                    ------- FAILURE LOG -------
              FAILURE MODE     TIME
PROG   INSTR     TI/SHU    START  FINISH  DESCRIPTION
----------------------------------------------------------------------
            ---------------- FOCUS LOG ---------------
Time  Instrument  Focus     Az  El  Temp Strc Prim  Sec  Air  filt  FWHM
--------------------------------------------------------------------------
 20:39 dcamera    599( 1363) 169  62  18.8 21.1 20.3 20.7 19.2   --  1.18
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    69    39      9   288  (WNW)    503  ptly cldy   none
     17:00    74    41      5   244  (WSW)    544  ptly cldy   none
     18:00    71    40      7   261    (W)    574  ptly cldy   none
     19:00    70    39      5   264    (W)    657  ptly cldy   none
     20:00    65    34      4   219   (SW)    883  ptly cldy   none
     21:00    65    33      5   242  (WSW)    718 mstly cldy   none
     22:00    64    35      9   265    (W)    670   cloudy     none
     23:00    64    30      2   292  (WNW)    913   cloudy     none
     00:00    64    34      9    73  (ENE)    704   cloudy     none
     01:00    58    29     21    71  (ENE)    601   cloudy     none
     02:00    59    29     21    73  (ENE)    459   cloudy     none
     03:00    62    30      5   104  (ESE)    458   cloudy     none
     04:00    62    31      2   245  (WSW)    796  ptly cldy   none
     05:00    62    31      9   183    (S)    615 mstly clr    none
     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.
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