Apache Point Observatory
                      3.5m Telescope Night Log
                      Tuesday, October 06, 2026

PROG  PI ASTRONOMER      OBSERVER(S) 
--------------------------------------------------------------------
OU03  G.Jewett          G.Jewett              
WY01  M.Moe             S.Dandu               
AP01  S.Merkowitz       R.McMillan,T.Sutherland

                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
OU03  ARCTIC         18:50   01:04   
WY01  KOSMOS         01:16   05:30
AP01  APOLLO         05:32   06:50

   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
OU03/R      18:50  01:10    0    0    0    0   6.3  0.0   0    0
WY01/R      01:10  05:38    0    0    0    0   2.7  1.7   0    0
AP01/R      05:38  06:53    0    0    0    0   0.0  1.2   0    0

note: scheduled times listed include instrument change time

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

Arctic's LL quad went back to normal, unsaturated, around 20:00, and stayed that way the rest of A half.

Clear weather throughout and uneventful.

                    ------- 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
--------------------------------------------------------------------------
 19:36 arctic   601( 1342)  75  37   9.9 13.2 11.8 12.5 10.7   BG40  2.05
 19:36 NA2gdr 41960(41960)  75  37   9.9 13.2 11.8 12.5 10.7   --  1.70
 20:49 arctic   491( 1112)  60  51   9.8 10.8 10.8 10.2  9.7   BG40  1.40
 21:57 arctic   451( 1030)  36  62  10.5 10.2 10.6 10.0 10.3   BG40  1.15
 01:27 khigh   311(  870) -83  46  10.9  9.6 10.4  9.5  9.8   --  1.16
 05:44 APOLLO     350( 1671)  87  20  10.0  9.0  9.8  8.8  9.5   530  1.60

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

                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
	
     16:00    56    46      5   297  (WNW)           clear     none 
     17:00    57    47      5   252  (WSW)           clear     none 
     18:00    55    45      5   255  (WSW)    236    clear     none 
     19:00    50    44      3   213  (SSW)           clear     none 
     20:00    51    39      7   189    (S)    224    clear     none 
     21:00    51    42      1   203  (SSW)    199    clear     none 
     22:00    51    40      2   168  (SSE)    204    clear     none 
     23:00    52    40      3   144   (SE)    161    clear     none 
     00:00    51    39      1   186    (S)    174    clear     none 
     01:00    52    43      2   222   (SW)    153    clear     none 
     02:00    52    42      3   223   (SW)           clear     none 
     03:00    53    40      2   218   (SW)    163    clear     none 
     04:00    53    40      1   249  (WSW)    160    clear     none 
     05:00    51    40      3   328  (NNW)    206    clear     none 
     06:00    50    40     10    44   (NE)    259    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: