Subject: 3.5m Night Log 20250125
From: tsutherland@apo.nmsu.edu
Date: Sun, 26 Jan 2025 13:50:01 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Saturday, January 25, 2025
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
OU02  M.Kilic           G.Jewett
UV04  Y.Zhou            Y.Zhou,M.Renee,D.Zakarian
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
OU02  ARCTIC         --:--   --:--
UV04  ARCTIC         03:56   06:33
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
OU02/R      17:38  00:10   6.5   0    0    0   0.0  0.0   0    0
UV04/R      00:10  06:53   3.8   0    0    0   0.9  2.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: T.Sutherland,R.McMillan
High dust counts kept us closed at the start of the night. Once the dust dropped, the clouds moved in though.
We were finally able to open up around 4am.
Finicky weather aside, it was a good night. No telescope or new instrument problems to report.
                    ------- 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
--------------------------------------------------------------------------
 04:04 arctic   310(  760)  69  63   0.9  1.1  3.1  1.7  1.2   SDSS_g  1.14
 05:40 arctic   314(  719)  12  77   0.4  0.3  1.2  0.4  0.3   SDSS_g  1.14
    ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    43     8     18   229   (SW)    960  ptly cldy   dust
     17:00    38    11     17   223   (SW)   8362  ptly cldy   dust
     18:00    37    12     10   187    (S)  13125    clear     dust
     19:00    37    11     17   197  (SSW)   9215    clear     dust
     20:00    36    12     13   179    (S)  11196  ptly cldy   dust
     21:00    37    12     19   184    (S)   7534   cloudy     dust
     22:00    38    13     23   204  (SSW)   3845   cloudy     dust
     23:00    37    13     26   194  (SSW)   4610   cloudy     dust
     00:00    37    13     22   208  (SSW)   4229   cloudy     dust
     01:00    36    12     21   212  (SSW)   3944   cloudy     none
     02:00    36    12     17   219   (SW)   3691  ptly cldy   dust
     03:00    34    12     21   203  (SSW)   4330  ptly cldy   dust
     04:00    34    12     24   212  (SSW)   2351    clear     none
     05:00    33    12     17   200  (SSW)   1855    clear     none
     06:00    32    12     13   201  (SSW)   1744    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: 3.1.5