Apache Point Observatory
                      3.5m Telescope Night Log
                      Sunday, September 13, 2026

PROG  PI ASTRONOMER      OBSERVER(S) 
--------------------------------------------------------------------
UW11  A.Tzanidakis      A.Tzanidakis          
OU04  N.Vernekar        N.Vernekar            
OU01  J.Serna           G.Garcia              

                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
UW11  KOSMOS         --:--   --:--   
OU04  ECHELLE        --:--   --:--
OU01  NICFPS         --:--   --:--

   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
UW11/R      19:20  01:10    4.7   1.2    0    0   0  0   0    0
OU04/R      01:10  05:38    4.5   0    0    0   0  0.0   0    0
OU01/R      05:38  06:38    1    0    0    0   0  0.0   0    0

note: scheduled times listed include instrument change time

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

Awful weather all night, never opened. A lot of the time overhead was nice and clear but there was so much nearby radar I couldn't risk opening. 

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    62    46     14    84    (E)    853 mstly cldy   rain 
     17:00    60    48     12    81    (E)        mstly cldy   rain 
     18:00    67    47      3   182    (S)    672  ptly cldy   none 
     19:00    66    45     11   167  (SSE)    751  ptly cldy   none 
     20:00    64    46     15   143   (SE)    888  ptly cldy   none 
     21:00    65    45     11   145   (SE)    710 mstly clr    none 
     22:00    63    44     15   182    (S)    660 mstly clr    none 
     23:00    62    46     18   148  (SSE)    729 mstly clr    none 
     00:00    61    45     17   177    (S)    586  ptly cldy   none 
     01:00    60    46     16   178    (S)    361  ptly cldy   none 
     02:00    59    47     20   219   (SW)    656  ptly cldy   none 
     03:00    55    49     10   244  (WSW)         ptly cldy lt rain
     04:00    55    50      9   190    (S)         ptly cldy   none 
     05:00    56    49     11   243  (WSW)         ptly 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: 3.2.2