Apache Point Observatory
                      3.5m Telescope Night Log
                      Wednesday, February 25, 2026

PROG  PI ASTRONOMER      OBSERVER(S) 
--------------------------------------------------------------------
OU03  K.Leighly         G.Garcia              
JH02  N.Oliveros-Gomez  N.Oliveros-Gomez      

                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
OU03  NICFPS         18:37   00:10   
JH02  NICFPS         00:15   06:13

   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
OU03/R      18:06  00:10    0    0    0    0   0.0  6.1   0    0
JH02/R      00:10  06:26    0    0    0    0   3.2  3.1   0    0

note: scheduled times listed include instrument change time

              ------------- ACTIVITY LOG --------------
Observing Specialist: H.Abbot

Experienced slow and timing out connections intermittently, Shane mentioned it is likely due to DNS issues. 
Focus log script would hang and time out without reporting any issue to the TUI log. 2.26 arcsec FWHM at the start of the night with MK-J filter. Script worked at midnight, so was entered normally.
JH02 also had issues downloading files as they went, solved by restarting TUI.
sshing into various systems took much longer than usual

Arcsat got hung up multiple times with various issues, with user reporting a laggy interface, observatory going offline, and a script error that was preventing unhoming the dome for flats. Restarted software twice to keep things running.

Otherwise, had thin cloud all night but was able to observe through it. Wind picked up towards the end, and stopped just shy of the closure limits. NICFPS was well behaved all night.

                    ------- 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
--------------------------------------------------------------------------
 00:15 NICFPS     563( 1447) -70  75   8.4  8.3  8.9  8.2  8.3   MK-J  1.08

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

                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
	
     16:00    54    26     10   265    (W)    292 mstly cldy   none 
     17:00    53    25     12   264    (W)    376 mstly cldy   none 
     18:00    52    25     16   273    (W)    501 mstly cldy   none 
     19:00    52    27     11   268    (W)    786  ptly cldy   none 
     20:00    51    27      9   315   (NW)    874  ptly cldy   none 
     21:00    51    26     19   314   (NW)    452  ptly cldy   none 
     22:00    51    26     11   323   (NW)    401 mstly clr    none 
     23:00    48    27     13   350    (N)    283 mstly clr    none 
     00:00    48    27      5   300  (WNW)    306 mstly clr    none 
     01:00    46    28      9   355    (N)    195 mstly clr    none 
     02:00    46    28     15   354    (N)    174 mstly clr    none 
     03:00    47    28     13   331  (NNW)    190 mstly clr    none 
     04:00    45    28     10    27  (NNE)    232 mstly clr    none 
     05:00    46    27      7    10    (N)    227 mstly clr    none 
     06:00    45    27     11   349    (N)    189 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: 3.1.8