Subject: 3.5m Night Log 20250807
From: tsutherland@apo.nmsu.edu
Date: Fri, 08 Aug 2025 12:31:52 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Thursday, August 07, 2025
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
UV02  J.Davidson        E.Horch,J.Davidson
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
UV02  DSSI           20:05   06:15
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
UV02/R      20:05  06:14    0    0    0    0   0.7  9.5   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: T.Sutherland
Nicfps bias levels looked high (90-100ish), so I did a nicfps expose init to fix,
which worked pretty well.
Opened to start venting just after 7:30pm. Nice clear skies at the start of the
night. There were some clouds early in the morning, but overall it was a clear and
quiet night and plenty of good data was taken!
                    ------- 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
--------------------------------------------------------------------------
 20:32 dssi   415( 1924) 100  84  19.9 21.6 21.9 22.8 19.9   Blue  1.00
------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    75    40      8   225   (SW)    923  ptly cldy   none
     17:00    75    32     18   245  (WSW)    905  ptly cldy   none
     18:00    76    34     12   199  (SSW)    748  ptly cldy   none
     19:00    73    33      9   200  (SSW)    822 mstly clr    none
     20:00    68    30     14   152  (SSE)    928    clear     none
     21:00    68    30     21   135   (SE)   1108    clear     none
     22:00    66    31     17   133   (SE)   1192    clear     none
     23:00    66    31     19   126   (SE)   1136    clear     none
     00:00    66    27     21   127   (SE)    795    clear     none
     01:00    67    23     15   129   (SE)    862    clear     none
     02:00    66    27     16   155  (SSE)   1094  ptly cldy   none
     03:00    64    32     16   168  (SSE)   1144    clear     none
     04:00    64    28     13   181    (S)   1029    clear     none
     05:00    63    33     10   194  (SSW)   1122    clear     none
     06:00    61    33      8   194  (SSW)   1127    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