Subject: 3.5m Night Log 20230423
From: dembicky@apo.nmsu.edu
Date: Mon, 24 Apr 2023 10:52:54 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Sunday, April 23, 2023
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
AP01  S.Merkowitz       R.McMillan
OU04  G.Jewett          G.Jewett
UW06  K.Suberlak        K.Suberlak
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
AP01  APOLLO         --:--   --:--
OU04  KOSMOS         23:40   01:05
UW06  KOSMOS         --:--   --:--
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
AP01/R      19:48  20:48    0   1.0   0    0   0.0  0.0   0    0
OU04/R      20:48  01:10    0   2.9   0    0   1.4  0.1   0    0
UW06/R      01:10  06:15   5.1   0    0    0   0.0  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: J.Dembicky
Clouds and dust kept us closed until 23:30.
We had a beautiful aurora on the cloud cam tonight.  Very bright pink and blue in the camera but unfortunately the moonlight and dust made it impossible to see visually.  The earth was hit with a CME earlier today.
Clouds came back around 00:50 and I decided to close at 01:10.  We never re-opened.
I had to restart the KOSMOS torrent when a bad stop command hung it.
My observer called it for the night at 04:25.  Rain sensor went off at 04:33.
We had elevated dust levels all night.
                    ------- 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
--------------------------------------------------------------------------
 23:48 kosmos   337(  692) 239  62  10.0  7.5  8.4  7.5  6.8   --  1.50
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00                 11   211  (SSW)   2793 mstly cldy   none
     17:00                 11   241  (WSW)   3077   cloudy     none
     18:00                  9   235   (SW)   2705   cloudy     none
     19:00                  4   215   (SW)   3542   cloudy     dust
     20:00                  8   260    (W)   5759   cloudy     dust
     21:00                  8   261    (W)   6149  ptly cldy   dust
     22:00                 12   264    (W)   6028 mstly clr    dust
     23:00                 13   240  (WSW)   5250 mstly clr    dust
     00:00                 15   233   (SW)   4902  ptly cldy   dust
     01:00                 12   249  (WSW)   4555   cloudy     dust
     02:00                 16   240  (WSW)   3861   cloudy     dust
     03:00                 13   202  (SSW)   4021   cloudy     dust
     04:00                  6   223   (SW)   3724   cloudy   lt rain
     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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