Apache Point Observatory
                      3.5m Telescope Night Log
                      Wednesday, June 03, 2026

PROG  PI ASTRONOMER      OBSERVER(S) 
--------------------------------------------------------------------
EN01  B.Ketzeback       T.Sutherland,R.McMillan
JH06  C.Lisse           C.Lisse,M.Bel         

                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
EN01  --             --:--   --:--   
JH06  ARCTIC         --:--   --:--

   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
EN01/R      20:16  01:10    2.9  2    0    0    0    0    0    0
JH06/R      01:10  05:47    0   4.6   0    0   0.0   0    0    0

note: scheduled times listed include instrument change time

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

Lots of clouds and storms kept us closed all night. Gave up at 4:30am.

Engineering tasks completed:
Restart tcc, hub, axis controllers
restart dataq file
zero na2 rotator
wiki updates

No 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
--------------------------------------------------------------------------

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

                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
	
     16:00    63    44     11   209  (SSW)   1213   cloudy     none 
     17:00    58    34      5    96    (E)    997   cloudy     rain 
     18:00    52    32     19   125   (SE)   1754   cloudy     rain 
     19:00    56    32      8   139   (SE)   1334   cloudy     rain 
     20:00    49    32     14    39   (NE)  24316   cloudy     dust 
     21:00    52    32     12    82    (E)   5101   cloudy     dust 
     22:00    51    32     12    60  (ENE)   2672   cloudy     none 
     23:00    50    32     19    19  (NNE)    896   cloudy     none 
     00:00    50    30     12    16  (NNE)    834   cloudy     none 
     01:00    50    31      9     5    (N)    680   cloudy     none 
     02:00    49    31      7   221   (SW)    777   cloudy    humid 
     03:00    46    31      8   181    (S)          cloudy     rain 
     04:00    46    30     17   119  (ESE)          cloudy     rain 

     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