Subject: 3.5m Night Log 20171120
From: cgray@apo.nmsu.edu
Date: Tue, 21 Nov 2017 13:44:59 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Monday, November 20, 2017
                                                           ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
--------------------------------------------------------------------
M.Bentz           M.Bentz               DIS            17:08   18:06
Z.Berta-Thompson  J.Roberts             DIS            18:06   00:02
                  Z.Berta-Thompson
S.Mahadevan       S.Mahadevan,          ARCTIC         00:13   05:35
                  G.Steffansson
   INST       SCHEDULED     WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B    D    B
 ----------------------------------------------------------------
GS01/R     17:08   18:08    0    0    0    0   0.0  1.0   0    0
CU01/R     18:08   00:10    0    0    0    0   5.1  0.9   0    0
DD01/R     00:10   06:30    0    0    0    0   6.3  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: C.Gray
I cannot *believe* we did not have a collision tonight in all this wind.  We were pointed in the opposite direction and the drives never showed any signs of strain so we kept on chugging and made it through 50 mph gusts. Seeing was...honestly better than I would expect given the conditions (but like, it's the arctic diffuser, so bad seeing helps, right?).  We had high clouds all night.
dcam showed the strange pattern tonight (I think this is the first time I've seen it).  it was present on images 144, 145, and 161.
                    ------- 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
--------------------------------------------------------------------------
 18:19 dcamera    432(  535)  25  49   8.2  7.7  8.1  7.7  7.7   --  1.19
 00:19 arctic   485(  617)   6  79   6.5  5.7  6.1  5.9  6.1   sdss_i  1.35
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    46    -1     11    33  (NNE)    126 mstly clr    none
     17:00    45    -2      9   346  (NNW)     48 mstly clr    none
     18:00    47    -1     14   349    (N)    108 mstly clr    none
     19:00    45    -2      9     1    (N)    139 mstly clr    none
     20:00    42    -4      8   336  (NNW)    471 mstly cldy   none
     21:00    43     8     16   316   (NW)   1771 mstly cldy   none
     22:00    44     8      9    12  (NNE)   1262 mstly cldy   none
     23:00    43     4     12   352    (N)   1060 mstly cldy   none
     00:00    43    -3     17     2    (N)    469 mstly cldy   none
     01:00    43    -3     17     8    (N)    281 mstly cldy   none
     02:00    42    -4     20    11    (N)    377 mstly cldy   none
     03:00    42    -4     35    15  (NNE)    528 mstly cldy   none
     04:00    42    -3     29    16  (NNE)    322 mstly cldy   none
     05:00    43     6     34    27  (NNE)    202 mstly cldy   none
     06:00    43    15     34    18  (NNE)    278  ptly cldy   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