Apache Point Observatory
                      3.5m Telescope Night Log
                      Saturday, January 17, 2026

PROG  PI ASTRONOMER      OBSERVER(S) 
--------------------------------------------------------------------
UW07  G.Khullar         G.Khullar             
UW05  B.Benda           B.Benda               

                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
UW07  KOSMOS         18:01   00:13   
UW05  ECHELLE        00:20   06:17

   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
UW07/R      17:31  00:10    0    0    0    0   6.7  0.0   0    0
UW05/R      00:10  06:56    0    0    0    0   6.8  0.0   0    0

note: scheduled times listed include instrument change time

              ------------- ACTIVITY LOG --------------
Observing Specialist: H.Abbot,A.Townsend

More training for Harry tonight! 

Restarted seeing monitor software which was frozen but it doesn't seem to be refreshing despite that. Leak in press fans seems to have reoccurred. 

Photometric skies all night. No telescope or instrument problems. 


                    ------- 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
--------------------------------------------------------------------------
 18:17 khigh   444(  545)   2  52  -1.9 -0.2  0.1 -0.5 -1.9   --  1.47
 00:29 ecamera    422( -542) 120  57  -1.0 -1.4 -1.6 -2.2 -1.5   ND2  1.17




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

                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    32    -1     15    24  (NNE)    226    clear     none 
     17:00    31     0      4   338  (NNW)    455    clear     none 
     18:00    29     0      2   342  (NNW)    393    clear     none 
     19:00    29     1     13    11    (N)    510    clear     none 
     20:00    30     1     19   357    (N)    543    clear     none 
     21:00    30     1     11    31  (NNE)    435    clear     none 
     22:00    30     0     25    20  (NNE)    324    clear     none 
     23:00    30     0     18     2    (N)    257    clear     none 
     00:00    29     0      8     7    (N)    296    clear     none 
     01:00    31     1     11   341  (NNW)    160    clear     none 
     02:00    30     1     12     4    (N)    178    clear     none 
     03:00    30     2     12   354    (N)    157    clear     none 
     04:00    29     4      7    18  (NNE)    197    clear     none 
     05:00    28     4     22     9    (N)    250    clear     none 
     06:00    28     3     23    11    (N)    213    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