Apache Point Observatory
                      3.5m Telescope Night Log
                      Sunday, April 19, 2026

PROG  PI ASTRONOMER      OBSERVER(S) 
--------------------------------------------------------------------
AP01  S.Merkowitz       T.Sutherland          
OU02  G.Jewett          G.Jewett              
CU02  A.Stephens        A.Stephens            

                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
AP01  APOLLO         --:--   --:--   
OU02  ARCTIC         --:--   --:--
CU02  KOSMOS         03:15   03:55

   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
AP01/R      19:45  20:45    0    1    0    0   0.0   0   0    0
OU02/R      20:45  01:10    2.4   2.1   0    0   0   0   0    0
CU02/R      01:10  06:19    4.4   0    0    0   0.7  0.0   0    0

note: scheduled times listed include instrument change time

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

Took 20+ seconds to connect to TUI, and about the same amount of time to connect to houston and cocoa on ObsA. Not a huge deal, it just seemed odd to me. 

Clouds and radar returns kept us closed until 3:15am. Made it to just before 4am before the humidity spiked over closure limits. At this point we called it quits for the night.

No telescope/instrument problems tonight. 

Server disconnected briefly while trying to generate this night log. It fixed itself thankfully

                    ------- 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
--------------------------------------------------------------------------
 03:30 kosmos   303(  721) 270  44   5.9  6.5  7.2  6.4  5.5   --  1.24

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

                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
	
     16:00    56    15      8   261    (W)    971 mstly cldy   none 
     17:00    51    21      2   215   (SW)   1149   cloudy     none 
     18:00    49    20      1   168  (SSE)   1364   cloudy   lt rain
     19:00    47    22      6    92    (E)   1505   cloudy   lt rain
     20:00    45    17      9    90    (E)    821   cloudy     none 
     21:00    44    21     13   109  (ESE)   1041   cloudy     none 
     22:00    47    24     15   124   (SE)   1424   cloudy     none 
     23:00    46    33     13   138   (SE)   1522   cloudy     none 
     00:00    45    32      4   181    (S)   1182 mstly cldy   none 
     01:00    44    33      9   178    (S)   1348  ptly cldy   none 
     02:00    42    32      5   188    (S)   1369 mstly cldy   none 
     03:00    42    32      6   184    (S)        mstly clr   humid 
     04:00    43    27     11   183    (S)   1784 mstly clr   humid 

     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