Subject: 3.5m Night Log 20250902
From: tsutherland@apo.nmsu.edu
Date: Wed,  3 Aug 2025 12:06:47 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Tuesday, September 02, 2025
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
UW05  A.Heinze          A.Heinze
OU04  J.Serna           J.Serna
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
UW05  Echelle        19:53   01:06
OU04  KOSMOS         01:11   04:39
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
UW05/R      19:35  01:10   0.3   0    0    0   0.0  5.3   0    0
OU04/R      01:10  06:31    0    0    0    0   4.3  1.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: T.Sutherland
It was a nice quiet night with no problems! :)
OU04 finished up on sky early, and spent the rest of the morning on cals. I stayed
open until 5:45am for the arcsat user.
                    ------- 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
--------------------------------------------------------------------------
 20:03 ecamera    634(  509)  49  46  13.9 16.2 16.4 16.2 14.3   ND4  0.93
 21:00 ecamera    573(  335) 126  61  13.6 14.1 14.8 13.7 13.4   ND2  0.96
 23:36 ecamera    431(  112) 197  77  12.9 12.5 13.2 12.4 12.5   ND2  0.77
 01:25 klow   381( 1048) 182  55  12.5 12.0 12.7 11.8 12.2   --  0.98
    ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    63    33      1   129   (SE)    312  ptly cldy   none
     17:00    62    27      7    79    (E)    349  ptly cldy   none
     18:00    63    31     11    84    (E)    380 mstly clr    none
     19:00    60    35     13    82    (E)    493 mstly clr    none
     20:00    57    38     15    87    (E)    543    clear     none
     21:00    57    39     12    89    (E)    550    clear     none
     22:00    56    40     14    83    (E)    579    clear     none
     23:00    56    40     16    86    (E)    613    clear     none
     00:00    55    41     14    86    (E)    619    clear     none
     01:00    55    41     14    90    (E)    617    clear     none
     02:00    55    41     12    87    (E)    659    clear     none
     03:00    57    33      1    70  (ENE)    621    clear     none
     04:00    59    31      2   246  (WSW)    527    clear     none
     05:00    58    34      1   266    (W)    554    clear     none
     06:00    56    35      2   317   (NW)    530    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