Subject: 3.5m Night Log 20190801
From: cgray@apo.nmsu.edu
Date: Fri,  2 Aug 2019 12:43:10 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Thursday, August 01, 2019
                                                           ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
--------------------------------------------------------------------
A.Kowalski        A.Kowalski            ARCTIC         22:35   01:04
M.Prescott        M.Prescott            DIS            01:14   06:16
   INST       SCHEDULED     WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B    D    B
 ----------------------------------------------------------------
CU07/R     20:10   01:10   1.6  0.8   0    0   2.6  0.0   0    0
NM06/R     01:10   06:09    0    0    0    0   5.0  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: C.Gray
gcam needed a restart during checkout.
We had clouds over us and radar nearby for the first few hours and I stayed closed, but it never actually rained on us. Clouds came and went but we were mostly clear after midnight with moderate seeing the whole night.
We had some interesting login issues with arcsat (will send an email).  When talking flats with ARCTIC filter 3500, there appeared to be a weird sort of gradient, almost like there was a shadow on the filter.  In imaging with 3250 and 4170 no issues were need.  I took the filter wheel out and couldn't see anything wrong with the filter. I tried rotating the filter and the shadow moved but not angularly. I suspected a moth but I didn't see one when I dismounted ARCTIC to swap for DIS.
                    ------- 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
--------------------------------------------------------------------------
 21:49 arctic   248( 1161) 137  69  17.0 18.5 18.5 18.3 17.3   3500  1.21
 00:21 dcamera    356(  945)  15  53  16.4 16.7 17.1 16.5 16.4   --  1.10
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    69    51      7   189    (S)    729 mstly cldy   none
     17:00    70    49      4   249  (WSW)    637 mstly cldy   none
     18:00    69    48     10   203  (SSW)    711 mstly cldy   none
     19:00    66    47      8   230   (SW)    622 mstly cldy   none
     20:00    64    46      2   101    (E)    576 mstly cldy   none
     21:00    65    45      2   198  (SSW)    708  ptly cldy   none
     22:00    62    46      7   201  (SSW)    766 mstly clr    none
     23:00    63    46      8   183    (S)    706 mstly clr    none
     00:00    63    46      5   185    (S)    711  ptly cldy   none
     01:00    61    43     16   127   (SE)   1476 mstly clr    none
     02:00    60    42      6   102  (ESE)   1997 mstly clr    none
     03:00    60    41      7   110  (ESE)   1652    clear     none
     04:00    61    43      2   168  (SSE)   1406 mstly clr    none
     05:00    63    45      2   193  (SSW)    915 mstly clr    none
     06:00    61    45      3   206  (SSW)    796 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.
                          TELESCOPE STATUS
    Telescope drives operational. Current TCC version: 1.2.4
    Current TUI version: 2.6.0