Subject: 3.5m Night Log 20251009
From: dembicky@apo.nmsu.edu
Date: Fri, 10 Oct 2025 10:45:34 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Thursday, October 09, 2025
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
EN01  B.Ketzeback       J.Dembicky, R.McMillan
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
EN01  NA2GDR         00:35   00:42
EN01  ECHELLE        00:42   00:50
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
EN01/W     18:45  06:56   1.5  10.4   0    0   0   0.3   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: J.Dembicky
Clouds to start with, then humidity, and a few sprinkles thrown in as well tonight.  The wind was out of the east and there was a big fog bank just to the east of us that I could see.
We did open very briefly at 00:35 to quickly check pointing at NA2 and NA1 ports.  Humidity was high but we were quick about things.  Pointing was near perfect at NA2 and pretty good at NA1.
High humidity and off and on clouds the remainder 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
--------------------------------------------------------------------------
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    58    48      7   178    (S)          cloudy     none
     17:00    53    48     11   101    (E)          cloudy     none
     18:00    52    48     14    89    (E)         ptly cldy   none
     19:00    52    49     20    80    (E)        mstly cldy lt rain
     20:00    52    49     19   100    (E)        mstly cldy  humid
     21:00    51    49     20    87    (E)        mstly cldy  humid
     22:00    51    48     18   104  (ESE)         ptly cldy  humid
     23:00    51    48     14    84    (E)          cloudy   lt rain
     00:00    50    48     15   115  (ESE)         ptly cldy  humid
     01:00    49    47     15   112  (ESE)        mstly cldy  humid
     02:00    49    47      6   104  (ESE)        mstly cldy  humid
     03:00    51    46     11   126   (SE)         ptly cldy  humid
     04:00    49    46      7   106  (ESE)          cloudy    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  ----------
Current TCC version: 1.4.2
Current HUB version: v20171231_01
Current TUI version: 3.1.8