Apache Point Observatory
                      3.5m Telescope Night Log
                      Monday, May 18, 2026

PROG  PI ASTRONOMER      OBSERVER(S) 
--------------------------------------------------------------------
AP01  S.Merkowitz       R.McMillan, T.Sutherland
NM03  K.Sanderson       K.Sanderson           
GS01  M.Crenshaw        M.Dsvis, M.Shea       

                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
AP01  APOLLO         20:06   21:01   
NM03  KOSMOS         21:07   01:02
GS01  KOSMOS         01:07   05:00

   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
AP01/R      20:06  21:06    0    0    0    0   0.0  1.0   0    0
NM03/R      21:06  01:10    0    0    0    0   2.4  1.7   0    0
GS01/R      01:10  05:53    0    0    0    0   4.7  0.0   0    0

note: scheduled times listed include instrument change time

              ------------- ACTIVITY LOG --------------
Observing Specialist: J.Dembicky

Russet and Torrie  both had connectivity issues where TUI would log them off.  Kelly said that happened to her as well this past quarter but not tonight.  Later she was having issues controlling KOSMOS with her TUI crashing and freezing her TUI during a readout.  It was working fine earlier while doing cals.  I had her close and restart TUI and if that didn't help to reboot her computer.  Things seemed to be better after.

No other problems the rest 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
--------------------------------------------------------------------------
 20:11 APOLLO     700( 2293) 249  22  13.3 14.4 14.5 14.0 13.2   --  1.60
 21:25 kosmos   575( 1262) 233  70  12.5 12.6 13.2 12.4 12.2   --  0.97
 01:18 kosmos   575( 1158) 107  71  10.4 10.4 11.1 10.3 10.3   --  0.96

               ------------- WEATHER LOG ----------------

                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
	
     16:00    64    24     21   261    (W)   2190    clear     none 
     17:00    63    21     18   262    (W)   2382    clear     none 
     18:00    62    19     31   260    (W)   1552    clear     none 
     19:00    60    18     27   270    (W)   1703    clear     none 
     20:00    56    19     21   263    (W)   3115    clear     none 
     21:00    55    20     21   264    (W)   2219    clear     none 
     22:00    53    21     13   242  (WSW)   2066    clear     none 
     23:00    53    22     16   251  (WSW)   2011    clear     none 
     00:00    53    25     17   267    (W)   2034    clear     none 
     01:00    51    28     16   262    (W)   2337    clear     none 
     02:00    50    31     11   266    (W)   2545    clear     none 
     03:00    50    31     13   258  (WSW)   2695    clear     none 
     04:00    50    30      9   263    (W)   2580    clear     none 
     05:00    49    30     10   261    (W)   2694    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: 3.1.8