Subject: 3.5m Night Log 20250522
From: cgray@apo.nmsu.edu
Date: Fri, 23 May 2025 12:06:47 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Thursday, May 22, 2025
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
UW06  A.Heinze          A.Heinze
AP01  S.Merkowitz       R.McMillan, T.Sutherland
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
UW06  ARCTIC         20:55   04:54
AP01  APOLLO         04:58   05:54
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
UW06/R      20:09  04:51    0    0    0    0   7.1  1.6   0    0
AP01/R      04:51  05:51    0    0    0    0   0.0  1.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: C.Gray
Another beautiful night!! We had excellent seeing, clear skies, and no issues all night.
Whoot!
                    ------- 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
--------------------------------------------------------------------------
 21:13 arctic   231( 1502) 281  51  17.9 18.4 18.7 18.1 18.0   CUVR  0.92
 21:55 arctic   343( 1594) 273  41  18.1 17.8 18.3 17.7 17.8   CUVR  0.89
 01:10 arctic   288( 1497) 353  28  17.0 16.6 17.4 16.4 16.7   CUVR  1.02
 05:00 APOLLO     225( 2046)  89  31  15.9 15.2 16.0 15.2 15.5   530  2.00
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    73    26     14   265    (W)   2272    clear     none
     17:00    72    26     20   255  (WSW)   2139    clear     none
     18:00    72    22     14   243  (WSW)   1899    clear     none
     19:00    68    19     11   276    (W)   1795 mstly clr    none
     20:00    65    15     11   255  (WSW)   1960 mstly clr    none
     21:00    64    14     11   248  (WSW)   2242    clear     none
     22:00    64    13     11   254  (WSW)   2009    clear     none
     23:00    63    14      9   262    (W)   2070    clear     none
     00:00    64    13      9   262    (W)   1899    clear     none
     01:00    63    14      7   269    (W)   1885    clear     none
     02:00    61    13      8   267    (W)   1942    clear     none
     03:00    62    12     11   266    (W)   1823    clear     none
     04:00    62    12     10   282  (WNW)   1967    clear     none
     05:00    61    11      5   258  (WSW)   1837    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