Subject: 3.5m Night Log 20250923
From: tmcquaid@apo.nmsu.edu
Date: Wed, 24 Sep 2025 12:09:15 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Tuesday, September 23, 2025
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
JH01  P.McCreery        P.McCreery,K.Schlaufman
BY02  A.Mosenkov        A.Mosenkov
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
JH01  ECHELLE        --:--   --: --
BY02  ARCTIC         01:10   05:30
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
JH01/R      19:06  01:10   5.3  0.8   0    0    0    0    0    0
BY02/R      01:10  06:45   1.3   0    0    0   4.3   0    0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: T.McQuaid, J.Dembicky
Restarted DATAQ and ALCOR
Closed for all of A-half due to storms, opened at 01:10.
ObsA TUI Disconnected at 05:06
Closed for clouds at 05:30
                    ------- 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
--------------------------------------------------------------------------
 01:27 arctic   115(  958)  66  53  13.9 13.6 15.7 13.2 13.5   SDSS_r  1.04
 01:30 NA2gdr 36595(36595)  65  54  13.8 13.6 15.6 13.1 13.5   R  1.28
 03:02 arctic   271( 1069)  29  68  12.7 12.8 13.8 12.6 12.6   SDSS_r  1.25
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    66    45     14   261    (W)    206 mstly clr    none
     17:00    66    45     12   259    (W)    254 mstly clr    none
     18:00    64    45      7   259    (W)    243 mstly cldy   none
     19:00    59    44      3    88    (E)    225   cloudy   lt rain
     20:00    57    47     16    52   (NE)          cloudy     rain
     21:00    52    46      8    58  (ENE)          cloudy     none
     22:00    53    46     12     1    (N)          cloudy     none
     23:00    54    46     10   339  (NNW)          cloudy     rain
     00:00    56    43      9   351    (N)    212  ptly cldy   none
     01:00    58    43     11    35   (NE)    263 mstly clr    none
     02:00    58    41     12    36   (NE)    197 mstly clr    none
     03:00    54    42     14    67  (ENE)    239  ptly cldy   none
     04:00    53    43     17    76  (ENE)    243 mstly cldy   none
     05:00    53    43      6    85    (E)    207   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: 3.1.8