Apache Point Observatory
                      3.5m Telescope Night Log
                      Tuesday, September 15, 2026

PROG  PI ASTRONOMER      OBSERVER(S) 
--------------------------------------------------------------------
JH06  K.Schlaufman      P.McCreery            
JH02  P.McCreery        K.Schlaufman          

                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
JH06  ECHELLE        --:--   --:--   
JH02  ECHELLE        --:--   --:--

   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
JH06/R      19:18  01:10    3.5   2.3   0    0   0  0   0    0
JH02/R      01:10  06:39    5.5   0    0    0   0   0.0   0    0

note: scheduled times listed include instrument change time

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

Gcam exposure failed at checkout. Restarting nubs did not fix it. Problem was occurring for all other guider cams as well. Thank you Shane for fixing it!

All sky camera is very frozen and turns out the computer was logged out. logged in and restarted the software and all was well.  

Power flickered just before 4am, maybe a lightning strike to site. Compressed air dew point sensor was reset. 

Weather was bad all night, never opened.

                    ------- 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
--------------------------------------------------------------------------



     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