Apache Point Observatory
                      3.5m Telescope Night Log
                      Friday, October 30, 2026

PROG  PI ASTRONOMER      OBSERVER(S) 
--------------------------------------------------------------------
UW09  S.Hawley          L.Hebb,S.Hawley       
WY02  M.Brotherton      K.Zhang               
AP02  S.Merkowitz       R.McMillan            

                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
UW09  ECHELLE        --:--   --:--   
WY02  KOSMOS         --:--   --:--
AP02  APOLLO         --:--   --:--

   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
UW09/R      18:23  01:10   3.9  2.8   0    0   0.0  0.0   0    0
WY02/R      01:10  04:10    0   3.0   0    0   0.0  0.0   0    0
AP02/R      04:10  07:12    0   3.0   0    0   0.0  0.0   0    0

note: scheduled times listed include instrument change time

              ------------- ACTIVITY LOG --------------
Observing Specialist: R.McMillan

Fog, humidity, threat of rain, and actual rain kept us closed all 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
--------------------------------------------------------------------------


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

                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    46    41      2   253  (WSW)    234   cloudy     fog  
     17:00    45    42      4   253  (WSW)          cloudy     none 
     18:00    44    37      4   346  (NNW)          cloudy    humid 
     19:00    42    39      3   219   (SW)          cloudy    humid 
     20:00    42    37      8   226   (SW)          cloudy   lt rain
     21:00    41    40     11   206  (SSW)          cloudy     rain 
     22:00    42    43     16   200  (SSW)          cloudy   lt rain
     23:00    41    42     10   204  (SSW)          cloudy   lt rain
     00:00    40    40     10   232   (SW)          cloudy    humid 
     01:00    41    41     12   236   (SW)        mstly cldy  humid 
     02:00    40    40     12   225   (SW)         ptly cldy  humid 
     03:00    41    41     12   237  (WSW)         ptly cldy  humid 
     04:00    41    40     12   266    (W)          cloudy     fog  
     05:00    41    41     13   263    (W)          cloudy     fog  


     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: