Apache Point Observatory
                      3.5m Telescope Night Log
                      Saturday, January 03, 2026

PROG  PI ASTRONOMER      OBSERVER(S) 
--------------------------------------------------------------------
JH01  C.Ingebretsen     C.Ingebretsen,C.Gray  
NM05  A.Peck            A.Peck,A.Smith        

                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
JH01  ECHELLE        17:19   23:25   
NM05  ECHELLE        --:--   --:--

   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
JH01/R      17:19  00:10    0    0.8   0    0   0.2  5.8   0    0
NM05/R      00:10  06:57    0    6.8    0    0   0.0  0   0    0

note: scheduled times listed include instrument change time

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

Clouds rolled in about an hour after observing started, but didn't get bad for another hour after that. We kept going until almost 23:30. 

I closed after JH01 called it just in case the clouds wanted to surprise us with precip. We never reopened.

No telescope or instrument problems 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
--------------------------------------------------------------------------
 17:38 ecamera    461(  -21)  65  80   6.6  9.1  8.2  9.7  7.1   clear  0.79
 19:00 ecamera    395( -152) 296  80   8.8  7.7  7.6  7.2  7.9   clear  0.88

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

                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
	
     16:00    46    27      3   190    (S)    163    clear     none 
     17:00    45    17      2   236   (SW)     81    clear     none 
     18:00    46     9      4   265    (W)     35 mstly clr    none 
     19:00    48     5      2   223   (SW)      7  ptly cldy   none 
     20:00    46     2      3   210  (SSW)     16  ptly cldy   none 
     21:00    45     2      9   221   (SW)     12 mstly cldy   none 
     22:00    44     4      8   196  (SSW)     26 mstly cldy   none 
     23:00    44     2     12   223   (SW)     57   cloudy     none 
     00:00    41     7      9   188    (S)     40   cloudy     none 
     01:00    41     7     11   225   (SW)     64   cloudy     none 
     02:00    39     9      9   187    (S)     61   cloudy     none 
     03:00    39    19      9   198  (SSW)    308   cloudy     none 
     04:00    42    10     15   238  (WSW)    218   cloudy     none 
     05:00    39    23     10   240  (WSW)    426   cloudy     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