Subject: 3.5m Night Log 20190826
From: trudyk@apo.nmsu.edu
Date: Tue, 27 Aug 2019 12:38:28 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Monday, August 26, 2019
                                                           ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
--------------------------------------------------------------------
L.Strolger        C.Kolobow             Arctic         20:15   01:04
B.Bolin           B.Bolin               DIS            01:16   05:30
T.Murphy          R.McMillan            APOLLO         05:33   06:30
   INST       SCHEDULED     WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B    D    B
 ----------------------------------------------------------------
JH06/R     19:44   01:10    0    0    0    0   5.4  0.0   0    0
UW15/R     01:10   05:26    0    0    0    0   2.0  2.3   0    0
AP01/R     05:26   06:26    0    0    0    0   0.0  1.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: T.Rudyk
Weather was clear. Seeing was decent. DIS had problems with biases. Kept restarting until it went away, which coincided with a drop of temperature outside? Not sure if the two are connected.  Telescope had one blip as it crossed the meridian during JH06's shift at 23:00 image showed double stars in the alt direction. It did not happen again. This was different from the earlier problem, as the motors did not show a current spike and wind was not in the direction we were facing. We will see if it happens again. We were open all night.
                    ------- 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
--------------------------------------------------------------------------
 20:17 arctic   296( 1412) -19  64  21.3 24.8 24.4 24.4 22.6   SDSS_r  0.87
 21:29 arctic   203( 1255)  21  40  22.3 23.1 22.9 22.8 22.0   SDSS_r  1.14
 22:46 arctic   368( 1364)  -4  43  22.0 22.0 22.4 21.6 21.7   SDSS_g  1.21
 00:17 arctic   428( 1369) -35  51  20.8 20.9 21.5 20.6 20.6   SDSS_g  1.04
 01:21 dcamera    403( 1119) -72  79  20.5 20.3 20.9 19.9 20.2   -  1.18
 05:49 APOLLO     375( 1809)  98  29  20.5 17.2 17.8 16.8 18.6   530  1.70
            ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    79    36     10   270    (W)    393    clear     none
     17:00    78    37     12   237  (WSW)    402    clear     none
     18:00    76    35     10   261    (W)    397    clear     none
     19:00    74    33      6   285  (WNW)    416    clear     none
     20:00    71    33      5   260    (W)    465    clear     none
     21:00    72    32      1   196  (SSW)    469    clear     none
     22:00    72    33      2   198  (SSW)    541    clear     none
     23:00    71    33      5   210  (SSW)    484    clear     none
     00:00    69    37      6   226   (SW)    426    clear     none
     01:00    69    40      6   280    (W)    378    clear     none
     02:00    68    40      6   280    (W)    366    clear     none
     03:00    69    40      2   243  (WSW)    378    clear     none
     04:00    67    40      5   119  (ESE)    433    clear     none
     05:00    61    43     12    79    (E)    806    clear     none
     06:00    69    39      2   294  (WNW)    386    clear     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