Subject: 3.5m Night Log 20220617
From: dembicky@apo.nmsu.edu
Date: Sat, 18 Jun 2022 10:57:14 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Friday, June 17, 2022
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
CU04  Y.Notsu           Y.Notsu
JH06  L.Breuval         L.Breuval
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
CU04  ECHELLE        --:--   --:--
JH06  ECHELLE        --:--   --:--
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
CU04/R      20:22  01:10   3.4  1.4   0    0   0.0  0.0   0    0
JH06/R      01:10  05:46    0   4.6   0    0   0.0  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: J.Dembicky
Dust all night kept us from opening.  We had clouds at the start and again around midnight with a few sprinkle, nothing substantial, around 01:00, then things cleared out again but the dust remained.
                    ------- 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
--------------------------------------------------------------------------
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    73    31     17   183    (S)  11471 mstly cldy   dust
     17:00    73    31     25   210  (SSW)  12800 mstly cldy   dust
     18:00    71    31      2   129   (SE)  12324  ptly cldy   dust
     19:00    64    31      9   107  (ESE)  12755  ptly cldy   dust
     20:00    63    30     15   113  (ESE)  15984  ptly cldy   dust
     21:00    62    28     15    91    (E)  16359  ptly cldy   dust
     22:00    62    28     17   115  (ESE)  15776  ptly cldy   dust
     23:00    60    31     24   123  (ESE)  15181 mstly cldy   dust
     00:00    60    31     17   111  (ESE)  13941   cloudy     dust
     01:00    60    30     14   163  (SSE)  12930 mstly cldy lt rain
     02:00    59    28     19   151  (SSE)  12838  ptly cldy   dust
     03:00    58    30     15   164  (SSE)  12338 mstly clr    dust
     04:00    58    28     24   153  (SSE)  12450 mstly clr    dust
     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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