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

PROG  PI ASTRONOMER      OBSERVER(S) 
--------------------------------------------------------------------
BY03  E.Hintz           S.Call                
UW11  S.Hawley          S.Hawley              

                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
BY03  TSPEC          --:--   --:--   
UW11  ECHELLE        --:--   --:--

   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
BY03/R      17:43  00:10    0   6.4   0    0   0.0  0.0   0    0
UW11/R      00:10  06:50   0.6  6.1   0    0   0.0  0.0   0    0

note: scheduled times listed include instrument change time

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

Remaining show on the roof of the 3.5m enclosure kept us closed for the night tonight.

Dome parked due east.


                    ------- 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    33    18      6   259    (W)    677    clear     none 
     17:00    33     9      7    24  (NNE)    466    clear     none 
     18:00    31     3      9   350    (N)    422    clear     none 
     19:00    30     2      7     2    (N)    442    clear     none 
     20:00    31     5     11    10    (N)    444    clear     none 
     21:00    32    -2     18    38   (NE)    308    clear     none 
     22:00    33     6     25    35   (NE)   2863    clear     none 
     23:00    32     7      9     7    (N)   2646    clear     none 
     00:00    31     8     12    18  (NNE)   2196    clear     none 
     01:00    31     8     17    25  (NNE)   2636    clear     none 
     02:00    32     6     13    67  (ENE)   2871    clear     none 
     03:00    30     5      2   227   (SW)   2494    clear     none 
     04:00    30     8     10     5    (N)   1718    clear     none 
     05:00    30    10     11    24  (NNE)   1390    clear     none 
     06:00    30    11      5    61  (ENE)   1291    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