Subject: 3.5m Night Log 20250524
From: cgray@apo.nmsu.edu
Date: Sun, 25 May 2025 11:33:23 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Saturday, May 24, 2025
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
NM06  T.McQuaid         T.McQuaid
UW02  P.Yoachim         Z.Xu, D.Meng
WY02  C.Kobulnicky      N.Patten
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
NM06  ECHELLE        20:11   23:54
UW02  KOSMOS         23:58   01:09
WY02  KOSMOS         01:09   05:15
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
NM06/R      20:11  22:58    0    0    0    0   2.8  0.0   0    0
UW02/R      22:58  01:10    0    0    0    0   2.2  0.0   0    0
WY02/R      01:10  05:50    0    0    0    0   3.3  1.4   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: C.Gray
the night started with some clouds, which were annoying but didn't stop us from observing. The seeing was surprisingly good as well!! Things started clearing up around 3am and we were able to use the full night.
No problems tonight.
                    ------- 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
--------------------------------------------------------------------------
 20:27 ecamera    369(  442) 158  68  15.6 16.5 17.2 15.7 15.6   ND1  0.88
 23:22 kosmos   300( 1295)   3  61  15.3 14.8 15.6 14.7 15.1   --  1.06
 01:18 kosmos   300( 1279)   5  46  14.4 14.2 14.9 14.3 14.3   --  1.38
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    72    22     13   252  (WSW)   2180  ptly cldy   none
     17:00    67    18     22   256  (WSW)   2520  ptly cldy   none
     18:00    69    17     14   260    (W)   2828  ptly cldy   none
     19:00    66    16     15   254  (WSW)   2632  ptly cldy   none
     20:00    60    11     15   263    (W)   2680  ptly cldy   none
     21:00    59     9     15   264    (W)   2993  ptly cldy   none
     22:00    60     9     13   264    (W)   2861  ptly cldy   none
     23:00    60     9     14   265    (W)   3018  ptly cldy   none
     00:00    59     9     10   266    (W)   2607  ptly cldy   none
     01:00    59     9     14   287  (WNW)   2637  ptly cldy   none
     02:00    58     7     11   303  (WNW)   2457 mstly clr    none
     03:00    57     6     18   311   (NW)   2235 mstly clr    none
     04:00    57     6      8   291  (WNW)   1908 mstly clr    none
     05:00    56     5     13   307   (NW)   1864 mstly clr    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.
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