Subject: 3.5m Night Log 20191205
From: trudyk@apo.nmsu.edu
Date: Fri,  6 Dec 2019 13:16:38 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Thursday, December 05, 2019
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
WY02  M.Brotherton      A.Cavanaugh,J.McLane
UV02  M.Brewer          M.Brewer,H.Lewis
                         ACTUAL
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
WY02  TSPEC          17:01   00:00
UV02  ARCTIC         00:13   06:00
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
WY02/R      17:06  00:10    0    0    0    0   0.0  7.1   0    0
UV02/R      00:10  06:43    0    0    0    0   5.2  1.4   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: T.Rudyk
Evening started mostly clear, and getting clearer. It was calm with decent seeing. Around 20:00 the humidity began to creep up, though. It got close, but did not exceed, safe limits. By 22:00 humidity was not a problem anymore. It stayed clear all night. Some clouds began to come through around 05:00, but no precip so we stayed open. We were open all night. Arctic was left at 28 degrees on NA2 per observer's request for cals.
                    ------- 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
--------------------------------------------------------------------------
 17:17 tcamera    517(  728) 115  73   2.2  4.6  4.8  4.5  3.1   -  1.38
 18:43 tcamera    510(  614) -49  64   2.2  2.2  3.1  2.4  2.2   -  1.02
 00:19 arctic   490(  480) -10  57   1.8  0.8  1.6  1.1  1.5   SDSS_r  1.26
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    42    31      6   252  (WSW)    248 mstly clr    none
     17:00    36    29     12   289  (WNW)    155    clear     none
     18:00    36    29     16   321   (NW)    159    clear     none
     19:00    36    29     11   337  (NNW)    161    clear     none
     20:00    35    30     16   314   (NW)           clear     none
     21:00    36    29      7   266    (W)           clear     none
     22:00    36    28     12     4    (N)    121    clear     none
     23:00    35    27     14   354    (N)    139    clear     none
     00:00    35    27     13     6    (N)    123    clear     none
     01:00    36    26      8     7    (N)     97    clear     none
     02:00    35    25      5    20  (NNE)     93    clear     none
     03:00    37    18      6    28  (NNE)     50    clear     none
     04:00    37    20      2   214   (SW)     51    clear     none
     05:00    35    20      6   256  (WSW)     63 mstly clr    none
     06:00    34    24      3   194  (SSW)     87 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 SOFTWARE  ----------
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Current HUB version: v20171231_01
Current TUI version: 2.6.0