Subject: 3.5m Night Log 20210912
From: ajt@apo.nmsu.edu
Date: Mon, 13 Sep 2021 13:28:03 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Sunday, September 12, 2021
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
UW08  M.Graham          M.Graham
NM06  D.Bizyaev         D.Bizyaev
                         ACTUAL
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
UW08  DIS            19:21   01:01
NM06  DIS            01:22   06:37
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
UW08/R      19:21  01:10    0    0    0    0   1.9  3.9   0    0
NM06/R      01:10  06:37    0    0    0    0   5.4  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: A.Townsend
We had a clear night, and the smoke seems to have mostly settled back down into the basin.
I had to restart IRAF a few times while checking the settings for DIS for B-half because when I tried to use imexam I got the error "iraf ERROR: Cannot open device (node!imtool,,2048,2048)", but as soon as Dmitry came over to help figure out what was wrong it started working again. I saw this error again around 05:00.
At 01:23 we got a motion error at alt=53.1 slewing towards alt=51.6.
Despite these minor problems, observing went well.
                    ------- 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
--------------------------------------------------------------------------
 19:45 dcamera    456( 1318)  91  34  15.1 17.3 17.5 17.2 15.5   --  1.37
 01:29 dcamera    467( 1143) -14  51  13.2 13.6 14.3 13.3 13.7   --  1.67
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    64    36      6   285  (WNW)   1857    clear     none
     17:00    68    36     11   251  (WSW)   1847    clear     none
     18:00    65    32     11   245  (WSW)   1793    clear     none
     19:00    61    27      3   252  (WSW)   1970    clear     none
     20:00    59    32     11    82    (E)   2135    clear     none
     21:00    58    29      9    59  (ENE)   1748    clear     none
     22:00    60    32      6     3    (N)   1775    clear     none
     23:00    55    31      6    12  (NNE)   1934    clear     none
     00:00    60    34     11    13  (NNE)   2217    clear     none
     01:00    59    32      5   349    (N)   2125    clear     none
     02:00    55    31      7    43   (NE)   1992    clear     none
     03:00    56    31      2   329  (NNW)   2099    clear     none
     04:00    57    30      6   289  (WNW)   1946    clear     none
     05:00    57    24      6   274    (W)   1271    clear     none
     06:00    57    28      6   272    (W)   1049    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 SOFTWARE  ----------
Current TCC version: 1.4.2
Current HUB version: v20171231_01
Current TUI version: 2.6.0