Subject: 3.5m Night Log 20191118
From: mcmillan@apo.nmsu.edu
Date: Tue, 19 Nov 2019 13:11:09 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Monday, November 18, 2019
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
UW14  G.Wallerstein     E.Farrell
UW04  Z.Ivezic          P.Yoachim
JH04  H.Reggiani        H.Reggiani,C.Filion,Q.Wang,S.Cheng
AP01  T.Murphy          R.McMillan
                         ACTUAL
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
UW14  DIS            17:30   21:13
UW04  ARCTIC         21:33   00:01
JH04  ECHELLE        00:03   05:08
AP01  APOLLO         05:20   06:10
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
UW14/R      17:09  21:30    0    0    0    0   4.4  0.0   0    0
UW04/R      21:30  00:10    0    0    0    0   1.3  1.4   0    0
JH04/R      00:10  05:28    0    0    0    0   0.0  5.3   0    0
AP01/R      05:28  06:28    0    0    0    0   0.0  1.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: R.McMillan
We had clear skies at the start of the night, then high clouds gradually increasing.  The echelle observers and APOLLO gave up early due to cloud interference.
                    ------- 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
--------------------------------------------------------------------------
 17:35 dcamera    710( 1053)   5  56   9.6 12.1 11.3 11.5 10.1   -  1.19
 21:39 arctic   463(  822) -18  43   7.8  8.4  9.1  8.3  8.1   g  1.08
 00:08 ecamera    365( -455) -102  43   7.5  6.7  7.1  6.6  7.3   Clear  1.01
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    52    15      8     7    (N)    301 mstly clr    none
     17:00    51    14     13    30  (NNE)     87    clear     none
     18:00    49    13     15    11    (N)     20 mstly clr    none
     19:00    49    12     13    13  (NNE)     33 mstly clr    none
     20:00    48    11     12   351    (N)     89  ptly cldy   none
     21:00    48    13      7     0    (N)     91  ptly cldy   none
     22:00    45    15      2   285  (WNW)    131  ptly cldy   none
     23:00    42    20      5   349    (N)    213  ptly cldy   none
     00:00    46    20      8   291  (WNW)    230  ptly cldy   none
     01:00    46    19      8   279    (W)    212  ptly cldy   none
     02:00    46    18      7   261    (W)    205  ptly cldy   none
     03:00    48    18      9   262    (W)    408 mstly cldy   none
     04:00    48    17      9   265    (W)    309 mstly cldy   none
     05:00    48    17      8   284  (WNW)    250 mstly 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.
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