Apache Point Observatory
                      3.5m Telescope Night Log
                      Friday, June 12, 2026

PROG  PI ASTRONOMER      OBSERVER(S) 
--------------------------------------------------------------------
NM03  K.Sanderson       K.Sanderson           
NM07  T.McQuaid         T.McQuaid             

                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
NM03  KOSMOS         20:54   22:25   
NM07  ECHELLE        01:05   05:09

   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
NM03/R      20:21  01:10  2.6    0    0    0   2.2  0.0   0    0
NM07/R      01:10  05:46    0    0    0    0   2.9  1.7   0    0

note: scheduled times listed include instrument change time

              ------------- ACTIVITY LOG --------------
Observing Specialist: H.Abbot

Had to restart gcam nubs during checkout. Also had to reset mirror covers. Otherwise instruments and telescope were well behaved. Arctic LL quad was even fine during checkout.

Thunderstorms all around until sunset where it magically cleared up for a couple hours. Incoming rain forced closure again at 2225. Reopened just in time for B-half.

                    ------- 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
--------------------------------------------------------------------------
 21:06 kosmos   550( 1450)  96  55  17.6 16.9 19.1 16.4 16.8   --  1.29
 01:18 ecamera    609(  413)  84  34  14.0 14.5 16.1 14.3 14.1   Clear  2.40

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

                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
	
     16:00    63    40     21    73  (ENE)   1110   cloudy     rain 
     17:00    51    44      2     1    (N)   2108   cloudy     rain 
     18:00    51    33     28    80    (E)    910   cloudy     none 
     19:00    54    32     15    86    (E)    716   cloudy     none 
     20:00    57    25      7   159  (SSE)    564 mstly cldy   none 
     21:00    62    32      9   181    (S)   1826    clear     none 
     22:00    59    32     16   126   (SE)   1189   cloudy     none 
     23:00    57    32     26   128   (SE)    605 mstly cldy   none 
     00:00    58    31     18   146   (SE)    615 mstly cldy   none 
     01:00    58    31     13   147  (SSE)    692 mstly clr    none 
     02:00    58    31     14   182    (S)    940 mstly clr    none 
     03:00    61    31     13   181    (S)   1020 mstly clr    none 
     04:00    60    31     17   181    (S)    814 mstly clr    none 
     05:00    59    25     13   195  (SSW)    658 mstly clr    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