Subject: 3.5m Night Log 20240922
From: dembicky@apo.nmsu.edu
Date: Mon, 23 Sep 2024 12:58:45 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Sunday, September 22, 2024
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
UV03  Y.Zhou            J.Davidson
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
UV03  DSSI           19:07   00:00
UV03  DSSI           02:00   06:44
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
UV03/O      19:07  06:44    0   2.0   0    0   3.0  6.7   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: J.Dembicky
zero'ed rotator -0.030 for DSSI
High humidity all night but we were open until around midnight when the humidity got too high for my comfort.  Nothing wet in the dome when I closed but things were cold and slightly clammy but not really wet.  Same for railing outside, but I could see a fog bank in the moonlight to our east.
I finally closed at midnight due to the humidity getting a little to high for comfort.  We re-opened at 02:00.
No problems tonight.
                    ------- 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
--------------------------------------------------------------------------
 19:35 dssi   350( 1637) -15  60   9.6 12.5 12.7 12.3 10.6   692  2.00
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    63    32     13   211  (SSW)    791 mstly clr    none
     17:00    61    32      4   248  (WSW)    805 mstly clr    none
     18:00    63    33      3   268    (W)    865    clear     none
     19:00    51    45      8    89    (E)           clear     none
     20:00    48    45     11    73  (ENE)           clear    humid
     21:00    47    44     14    70  (ENE)           clear    humid
     22:00    46    43     13    71  (ENE)           clear    humid
     23:00    46    43     13    75  (ENE)           clear    humid
     00:00    45    43     16    78  (ENE)           clear    humid
     01:00    45    42     10    59  (ENE)           clear    humid
     02:00    50    42      1   339  (NNW)           clear     none
     03:00    52    41      1   219   (SW)   1192    clear     none
     04:00    51    41      2   136   (SE)           clear     none
     05:00    53    29      2   253  (WSW)   1026    clear     none
     06:00    51    39      2   196  (SSW)   1062    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: 3.1.5