Apache Point Observatory
                      3.5m Telescope Night Log
                      Wednesday, January 28, 2026

PROG  PI ASTRONOMER      OBSERVER(S) 
--------------------------------------------------------------------
GS02  D.Gies            D.Gies                
UW01  S.Hawley          L.Hebb                
UW02  P.Yoachim         P.Yoachim                                                           

                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
GS02  ECHELLE        --:--   --:--   
UW01  ARCTIC         --:--   --:--
UW02  KOSMOS         --:--   --:--                             

   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
GS02/R     17:41  23:30    0   5.8   0    0   0.0  0.0   0    0
UW01/R     23:30  03:30    0   4.0   0    0   0.0  0.0   0    0
UW02/R     03:30  06:51   2.5  0.9   0    0   0.0  0.0   0    0

note: scheduled times listed include instrument change time

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

We were still closed tonight due to snow still on the roof of the enclosure as well as still being on generator power.

I did morning instrument fills at 04:00.

                    ------- 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    36     2     12   256  (WSW)    639 mstly clr    none 
     17:00    36     1     13   279    (W)    641 mstly clr    none 
     18:00    33     0     12   268    (W)    688 mstly clr    none 
     19:00    33     1     13   276    (W)    786    clear     none 
     20:00    33     2      9   269    (W)    715    clear     none 
     21:00    35     2     14   279    (W)    651    clear     none 
     22:00    35     3     10   285  (WNW)    567    clear     none 
     23:00    35     1      5   328  (NNW)    562    clear     none 
     00:00    35     3     16   331  (NNW)    576    clear     none 
     01:00    35     5      5   354    (N)    549    clear     none 
     02:00    35     7     20     8    (N)    595    clear     none 
     03:00    34     6     20    25  (NNE)    399    clear     none 
     04:00    33     4     21     8    (N)    459    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