Subject: 3.5m Night Log 20210830
From: ajt@apo.nmsu.edu
Date: Tue, 31 Aug 2021 12:22:31 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Monday, August 30, 2021
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
UW05  K.Bell            K.Bell
JH02  Q.Wang            Q.Wang
                         ACTUAL
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
UW05  DIS            20:36   01:04
JH02  ARCTIC         --:--   --:--
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
UW05/R      19:39  01:10   1.0   0    0    0   3.8  0.8   0    0
JH02/R      01:10  06:29   5.3   0    0    0   0.0  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: A.Townsend,R.McMillan
Opened an hour late due to clouds and nearby storms on the radar, but the sky cleared up very nicely. Unfortunately, we had to close at the very end of A-half just as the humidity got too high. The humidity stayed too high to open the rest of the night.
                    ------- 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
--------------------------------------------------------------------------
 20:44 dcamera   1006( 1534) 197  50  15.5 16.8 15.7 16.8 15.8   --  1.36
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    59    53      4    82    (E)         ptly cldy   none
     17:00    62    51      1   237  (WSW)   1278  ptly cldy   none
     18:00    61    50      3   136   (SE)   1193 mstly cldy   none
     19:00    60    51      8   126   (SE)   1401 mstly cldy   none
     20:00    59    49      9   166  (SSE)   1503  ptly cldy   none
     21:00    60    47      3   234   (SW)   1518 mstly clr    none
     22:00    59    49      1   213  (SSW)   1659    clear     none
     23:00    57    49      2   111  (ESE)   1862    clear     none
     00:00    55    51      9   127   (SE)           clear    humid
     01:00    54    52     16   138   (SE)           clear    humid
     02:00    54    52      8   107  (ESE)         ptly cldy  humid
     03:00    53    52      7   110  (ESE)        mstly clr   humid
     04:00    53    52      3   118  (ESE)           clear    humid
     05:00    57    50      1   259    (W)           clear    humid
     06:00    55    50      3   226   (SW)           clear    humid
     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