Apache Point Observatory
                      3.5m Telescope Night Log
                      Wednesday, May 06, 2026

PROG  PI ASTRONOMER      OBSERVER(S) 
--------------------------------------------------------------------
CU02  A.Stephens        A.Stephens            
UW10  A.Heinze          A.Heinze              

                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
CU02  KOSMOS         20:03   01:06   
UW10  Echelle        01:11   05:59

   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
CU02/R      19:58  01:10    0    0    0    0   4.6  0.7   0    0
UW10/R      01:10  06:02    0    0    0    0   0.0  4.9   0    0

note: scheduled times listed include instrument change time

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

Beautiful clear weather all night.

No telescope or instrument 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
--------------------------------------------------------------------------
 20:45 kosmos   625( 1134)  79  58   5.7  8.7  8.1  8.1  6.9   --  1.24
 01:15 ecamera    500(  -95)  30  35   7.2  6.1  6.9  5.8  7.0   ND1  1.55


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

                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
	
     16:00    50    19     21   254  (WSW)   1282    clear     none 
     17:00    53    18     16   241  (WSW)   1306    clear     none 
     18:00    50    15     11   265    (W)   1425    clear     none 
     19:00    49    14     18   244  (WSW)   1136    clear     none 
     20:00    45    12     17   240  (WSW)   1184    clear     none 
     21:00    43    11      7   244  (WSW)   1213    clear     none 
     22:00    44     9     10   236   (SW)   1110    clear     none 
     23:00    45     8      7   252  (WSW)   1150    clear     none 
     00:00    46     6      5   299  (WNW)   1144    clear     none 
     01:00    46    11      6   275    (W)   1035    clear     none 
     02:00    45    10      6   263    (W)   1016    clear     none 
     03:00    45    12      7   263    (W)    993    clear     none 
     04:00    45    14     11    10    (N)   1046    clear     none 
     05:00    42    13      3   328  (NNW)   1098    clear     none 
     06:00    45    17      8     5    (N)   1016    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