Subject: 3.5m Night Log 20240930
From: ajt@apo.nmsu.edu
Date: Tue,  1 Oct 2024 12:59:25 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Monday, September 30, 2024
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
JH06  Q.Wang            Q.Wang
UW06  C.Chandler        M.Frissell,C.Chandler
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
JH06  KOSMOS         23:27   01:01
UW06  ARCTIC         01:15   06:20
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
JH06/R      18:57  01:10   4.7   0    0    0   1.5  0.0   0    0
UW06/R      01:10  06:49    0    0    0    0   4.7  0.9   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: A.Townsend
We started the night with storms and virga nearby. The radar finally cleared around 23:30 and we were able to open with pretty good seeing.
Initial ARCTIC focus at airmass 3.
No telescope or instrument trouble.
                    ------- 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
--------------------------------------------------------------------------
 23:38 kosmos   220( 1366)   0  64  16.4 16.9 16.9 16.9 16.3   --  0.72
 01:26 arctic   301( 1466) 199  19  16.1 15.5 16.0 15.4 15.7   CUVR  1.34
 02:13 arctic   308( 1430) 355  47  15.7 15.1 15.7 15.1 15.3   CUVR  1.02
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    69    34      7   105  (ESE)    825 mstly cldy   none
     17:00    69    31      8   248  (WSW)    893 mstly cldy   none
     18:00    66    35      8    97    (E)   1010 mstly clr    none
     19:00    63    31      5   185    (S)    916 mstly clr    none
     20:00    61    31      3   197  (SSW)    971 mstly cldy   none
     21:00    61    31      8    15  (NNE)    957 mstly cldy   none
     22:00    62    33      2   348  (NNW)    771 mstly cldy   none
     23:00    63    31     10    17  (NNE)    675 mstly clr    none
     00:00    61    33     17    53   (NE)    923 mstly clr    none
     01:00    61    33     15    61  (ENE)    900    clear     none
     02:00    60    33     14    55   (NE)    887 mstly clr    none
     03:00    58    33     11    78  (ENE)   1095 mstly clr    none
     04:00    59    33      8   112  (ESE)   1028    clear     none
     05:00    58    31      9   123  (ESE)   1019    clear     none
     06:00    51    30     12    90    (E)   1288    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.
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