Apache Point Observatory
                      3.5m Telescope Night Log
                      Tuesday, June 02, 2026

PROG  PI ASTRONOMER      OBSERVER(S) 
--------------------------------------------------------------------
UW01  P.Yoachim         Z.Xu,D.Meng,Z.Liu     
WY01  M.Brotherton      M.Brotherton,Students 
OU05  N.Vernekar        N.Vernekar            

                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
UW01  KOSMOS         --:--   --:--   
WY01  KOSMOS         --:--   --:--
OU05  ECHELLE        --:--   --:--

   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
UW01/R      20:16  23:30    2.2  1    0    0    0    0    0    0
WY01/R      23:30  01:10    0   1.7   0    0    0.0  0    0    0
OU05/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

Storms passing through and clouds kept us closed all night. Called it a night at 4:30am.

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    54    43     16    90    (E)   1506   cloudy     rain 
     17:00    54    32     30    81    (E)   2109   cloudy     none 
     18:00    53    32     17    80    (E)   1286   cloudy     none 
     19:00    51    31     24    76  (ENE)   1442   cloudy     none 
     20:00    56    26     20   134   (SE)   1098   cloudy     none 
     21:00    53    32     17   110  (ESE)    851   cloudy     none 
     22:00    49    31     23    79    (E)    954   cloudy     none 
     23:00    50    31     26    72  (ENE)    908   cloudy     rain 
     00:00    49    31     19    69  (ENE)    877   cloudy     none 
     01:00    51    31     10    80    (E)    926   cloudy     none 
     02:00    55    31      3   271    (W)   1544   cloudy     none 
     03:00    54    30      2   205  (SSW)   1668  ptly cldy   none 
     04:00    53    31     11   129   (SE)   1946 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