Apache Point Observatory
                      3.5m Telescope Night Log
                      Friday, January 23, 2026

PROG  PI ASTRONOMER      OBSERVER(S) 
--------------------------------------------------------------------
JH03  N.Myers           N.Myers               
NM03  T.McQuaid         T.McQuaid             

                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
JH03  ECHELLE        --:--   --:--   
NM03  ECHELLE        --:--   --:--

   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
JH03/R      17:36  00:10    1.6    5    0    0   0   0   0    0
NM03/R      00:10  06:54    6.7    0    0    0   0  0.0   0    0

note: scheduled times listed include instrument change time

              ------------- ACTIVITY LOG --------------
Observing Specialist: T.Sutherland

Really gross snowy weather all night kept us closed. 

Did fills then restarted the snow program at 16:20.

Had to restart stripcharts computer at 01:15 due to it being frozen and at 100% capacity.

                    ------- 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    32    32     12   303  (WNW)          cloudy   lt snow
     17:00    33    32     12   263    (W)          cloudy   lt snow
     18:00    33    32      6   259    (W)          cloudy   lt rain
     19:00    33    32     16   219   (SW)          cloudy     snow 
     20:00    34    32     13   189    (S)          cloudy     snow 
     21:00    32    32     19   215   (SW)          cloudy     snow 
     22:00    32    32     17   206  (SSW)          cloudy     snow 
     23:00    33    32     17   218   (SW)          cloudy     snow 
     00:00    32    32     16   215   (SW)          cloudy     snow 
     01:00    32    31     19   228   (SW)          cloudy     snow 
     02:00    33    31     18   218   (SW)          cloudy     snow 
     03:00    33    32     19   226   (SW)          cloudy     snow 
     04:00    33    32      9   230   (SW)          cloudy     snow 
     05:00    33    32     21   238  (WSW)          cloudy     snow 
     06:00    34    31     12   262    (W)          cloudy     snow 

     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