Subject: 3.5m Night Log 20180612
From: mcmillan@apo.nmsu.edu
Date: Wed, 13 Jun 2018 11:50:24 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Tuesday, June 12, 2018
                                                           ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
--------------------------------------------------------------------
K.McGouldrick     R.McCabe              ARCTIC         20:15   22:18
N.Schneider       C.Schmidt             DIS            22:33   01:07
E.Bellm           M.Graham,D.Bektesevic DIS            01:17   05:20
   INST       SCHEDULED     WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B    D    B
 ----------------------------------------------------------------
CU02/R     20:21   22:21    0    0    0    0   2.0  0.0   0    0
CU04/R     22:21   01:10    0    0   0.4   0   2.4  0.0   0    0
UW06/R     01:10   05:46    0    0    0    0   4.6  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: R.McMillan
The night started out clear, but later patchy clouds moved in.  Seeing was good initially and then mediocre when the wind shifted east.
We had a little trouble on the switch to DIS when I moved the gratings at nonzero rotation, and they mispositioned.  This messed up a science exposure in addition to the time it took to fix it.
                    ------- FAILURE LOG -------
PROG   INST   FAILURE MODE     TIME
    (SEDFNVOG)   TI/SHU    START  FINISH  DESCRIPTION
----------------------------------------------------------------------
CU04    D         I/H     22:50  23:13   Turret needed to be homed
            ---------------- FOCUS LOG ---------------
Time  Instrument  Focus     Az  El  Temp Strc Prim  Sec  Air  filt  FWHM
--------------------------------------------------------------------------
 20:16 arctic   561( 1643)  50  31  21.6 23.6 23.7 23.3 22.1 sdss_u  1.21
 21:14 arctic   399( 1387) -95  41  21.1 22.0 22.5 21.6 21.0 sdss_u  1.36
 22:45 dcamera    298( 1050)  -6  42  19.6 20.3 21.1 20.1 19.8   -  1.44
 01:31 dcamera    370(  941) -92  49  16.8 16.9 17.8 16.9 16.8   -  1.58
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    80    35     17   221   (SW)           clear     none
     17:00    82    36     16   196  (SSW)           clear     none
     18:00    77    34     14   230   (SW)           clear     none
     19:00    77    32     11   220   (SW)           clear     none
     20:00    72    28      6   189    (S)           clear     none
     21:00    70    24     13   176    (S)           clear     none
     22:00    70    24     15   177    (S)         ptly cldy   none
     23:00    66    25     23   141   (SE)         ptly cldy   none
     00:00    63    45     23   131   (SE)         ptly cldy   none
     01:00    63    46     21   124   (SE)         ptly cldy   none
     02:00    63    44     22   133   (SE)         ptly cldy   none
     03:00    63    43     19   137   (SE)         ptly cldy   none
     04:00    63    42     19   158  (SSE)        mstly clr    none
     05:00    62    43     17   157  (SSE)        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