Subject: 3.5m Night Log 20250711
From: mcmillan@apo.nmsu.edu
Date: Sat, 12 Jul 2025 09:15:24 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Friday, July 11, 2025
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
EN02  B.Ketzeback       R.McMillan
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
EN02  ARCTIC         22:30   01:00
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
EN02/R      20:22  05:56   0.9  6.2   0    0    0   2.5   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: R.McMillan
The telescpoe was ready for on-sky tests a little earlier than anticipated, which is nice because the weekend forecast is less bad.  Tonight started with high dust and ended with a couple of storm outflows colliding over the Sacramento mountains, but in between I got a few hours to check on a few instruments, collimation, and pointing.
I got the first coarse adjustment to collimation done, but the telescope was not as cool as I would like, so this may be repeated later if opportunity allows.
There is some frost on the NA2 guider which may cause issues with guiding, so we will llok for a way to remediate that.
                    ------- 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
--------------------------------------------------------------------------
 23:27 arctic   278( 1638) 125  61  19.8 20.4 20.7 20.2 19.5   sdss_r  1.19
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    83    44     11   256  (WSW)   4301  ptly cldy   dust
     17:00    75    34      9   280    (W)   2535  ptly cldy   none
     18:00    77    34     11   285  (WNW)   1704  ptly cldy   none
     19:00    74    44     13   202  (SSW)   1987 mstly clr    none
     20:00    68    47     16   139   (SE)   4027 mstly clr    dust
     21:00    68    44     14   137   (SE)   3540 mstly clr    none
     22:00    68    41     14   165  (SSE)   3803  ptly cldy   none
     23:00    67    38     15   161  (SSE)   2233 mstly clr    none
     00:00    65    43     26   143   (SE)   2275 mstly clr    none
     01:00    63    49     20   145   (SE)   3273 mstly clr    none
     02:00    64    48     26   134   (SE)   3143  ptly cldy   dust
     03:00    62    47     17   151  (SSE)   4482  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: 3.1.8