Apache Point Observatory
                      3.5m Telescope Night Log
                      Thursday, October 08, 2026

PROG  PI ASTRONOMER      OBSERVER(S) 
--------------------------------------------------------------------
NM04  T.McQuaid         T.McQuaid             
UW02  F.ChabourBarra    F.ChabourBarra        

                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
NM04  ECHELLE        22:13   01:05   
UW02  KOSMOS         01:11   05:46

   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
NM04/R      18:47  01:10   3.4   0    0    0   3.0  0.0   0    0
UW02/R      01:10  06:55    0    0    0    0   4.8  0.9   0    0

note: scheduled times listed include instrument change time

              ------------- ACTIVITY LOG --------------
Observing Specialist: A.Townsend

Stayed closed for a few hours after sunset due to nearby radar, elevated humidity, and lots of clouds. We opened up once the weather was safe but we still struggled to get photons through the clouds for most of the night. 

ARCTIC LL quad mostly recovered by 23:00 tonight. 


                    ------- 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
--------------------------------------------------------------------------
 22:19 ecamera    223( -175) -32  69   9.0 10.7 10.9 10.4  9.2   Clear  1.13
 01:45 kosmos   425(  920) -46  64   8.8  8.4  8.9  8.4  8.6   --  1.51


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

                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    53    48      4   191    (S)          cloudy   lt rain
     17:00    52    47      7    82    (E)          cloudy     none 
     18:00    51    47      3   101    (E)          cloudy     none 
     19:00    49    44     11    75  (ENE)          cloudy     none 
     20:00    48    41     15    75  (ENE)          cloudy     none 
     21:00    48    39     14    81    (E)    458  ptly cldy   none 
     22:00    48    38     13    88    (E)    372  ptly cldy   none 
     23:00    48    40     11    84    (E)        mstly cldy   none 
     00:00    48    39     13    87    (E)        mstly cldy   none 
     01:00    48    38      9    88    (E)        mstly cldy   none 
     02:00    48    38     10    85    (E)    904 mstly cldy   none 
     03:00    48    38      9    95    (E)        mstly cldy   none 
     04:00    47    39      8    89    (E)         ptly cldy   none 
     05:00    46    39      9   112  (ESE)        mstly clr    none 
     06:00    46    39     12   118  (ESE)        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: 3.2.2