Subject: 3.5m Night Log 20220409
From: mcmillan@apo.nmsu.edu
Date: Sun, 10 Apr 2022 11:03:31 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Saturday, April 09, 2022
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
JH08  N.Zakamska        H.Hwang
OU01  M.Kilic           M.Kilic+class
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
JH08  DIS            19:45   00:50
OU01  TSPEC          01:10   03:00
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
JH08/R      19:38  01:10    0   0.9   0    0   0.0  4.6   0    0
OU01/R      01:10  06:31   3.1  2.2   0    0   0.0  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: R.McMillan
We had borderline dust and wind before sunset, so opened a little into twilight, but we were observing as soon as it was dark enough so I didn't count any time lost then.  Later, some high clouds moved in and grew thick.  Although the dome remained open, the first half observer got nothing for the last hour of first half.
During second half, the class exercised the telescope on sky and occasionally saw just a few photons from some of the brightest stars, but no science data were obtained so I counted that time lost as well.
We had a little excitement when we discovered that requesting binning from the kosmos slitviewer can crash it moderately hard.  But I was able to get it back without actually restarting any software so that was fortunate.
                    ------- 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
--------------------------------------------------------------------------
 19:05 dcamera    686( 1323) 204  47  11.5 12.7 12.2 12.6 12.2   -  1.52
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    59     8     20   252  (WSW)   3559    clear     none
     17:00    57     4     20   265    (W)   3085    clear     none
     18:00    57     6     28   258  (WSW)   3396    clear     none
     19:00    54     8     26   240  (WSW)   3522    clear     none
     20:00    53     8     20   256  (WSW)   3380 mstly clr    none
     21:00    52     5     21   273    (W)   2694 mstly clr    none
     22:00    52     3     24   269    (W)   2407  ptly cldy   none
     23:00    51     3     23   259    (W)   2184  ptly cldy   none
     00:00    50     3     19   267    (W)   2059 mstly cldy   none
     01:00    50     3     19   263    (W)   2111   cloudy     none
     02:00    49     5     21   275    (W)   2107   cloudy     none
     03:00    49     5     13   257  (WSW)   2249   cloudy     none
     04:00    48     5     17   266    (W)   2234   cloudy     none
     05:00    45     8     15   263    (W)   2560   cloudy     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