Apache Point Observatory
                      3.5m Telescope Night Log
                      Saturday, April 11, 2026

PROG  PI ASTRONOMER      OBSERVER(S) 
--------------------------------------------------------------------
NM03  K.Sanderson       K.Sanderson           
OU03  G.Garcia          G.Garcia              
AP01  S.Merkowitz       R.McMillan,T.Sutherland

                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
NM03  KOSMOS         --:--   --:--   
OU03  NICFPS         --:--   --:--
AP01  APOLLO         --:--   --:--

   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
NM03/R      19:39  01:10    5.5   0    0    0   0   0.0   0    0
OU03/R      01:10  05:29    2.6   1.7    0    0   0   0   0    0
AP01/R      05:29  06:29    1    0    0    0   0.0    0   0    0

note: scheduled times listed include instrument change time

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

Powercycled dataq twice during the night.

Clouds and nearby radar returns kept us closed all night. 

No major 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    49    32     10   205  (SSW)   1036   cloudy     none 
     17:00    49    32      9   210  (SSW)   1032   cloudy     none 
     18:00    45    32      6   203  (SSW)    910   cloudy     none 
     19:00    44    32     11   242  (WSW)   1159   cloudy     none 
     20:00    44    29     10   207  (SSW)   1280   cloudy     none 
     21:00    45    28     13   214   (SW)   1281   cloudy     none 
     22:00    45    30     14   207  (SSW)   1314   cloudy     none 
     23:00    43    32     13   198  (SSW)    880   cloudy     none 
     00:00    42    32     16   236   (SW)    734   cloudy    humid 
     01:00    42    32     16   205  (SSW)    569   cloudy    humid 
     02:00    42    32     17   216   (SW)    772 mstly cldy  humid 
     03:00    41    32     16   205  (SSW)        mstly cldy  humid 
     04:00    42    32     13   235   (SW)        mstly clr   humid 
     05:00    41    32     14   252  (WSW)         ptly cldy  humid 
     06:00    42    32     10   264    (W)    772 mstly cldy   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