Subject: 3.5m Night Log 20240208
From: dembicky@apo.nmsu.edu
Date: Fri,  9 Feb 2024 09:47:49 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Thursday, February 08, 2024
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
OU01  G.Jewett          A.Moss, M.Kilic
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
OU01  ARCTIC         17:51   20:30
OU01  KOSMOS         20:30   21:30
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
OU01/R      17:51  06:44   9.2   0    0    0  3.7  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: J.Dembicky
Strip chart was not working tonight.  I closed the windows and tried restarting.  It failed with a 'waiting for connection...' in the terminal window.
I got a fiducial too large error on Az on my slew from 130 to 60. during checkout slew.
Observers noted that it seemed to be taking longer than usual to transfer their data.  Taking about a minute to transfer one Kosmos image at 18:00.  They reported it improved shortly afterwards so maybe somebody was transferring data from the mountain.
Wind gusts went over the limit ar 21:30, clouds also came in around this time as well.  Humidity went over the limit about 01:00, as well as continued clouds.  From the track of the system I gave up at 02:45 as my observer would need a minimun 2hrs before twilight and from the storm flow the clouds were not going to be going away anytime soon.
                    ------- 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
--------------------------------------------------------------------------
 18:25 arctic   391(  729) -65  67  -2.7 -1.3 -1.4 -2.1 -2.6   BG40  1.90
 20:57 kosmos   391(  662)  77  48  -2.4 -1.9 -2.1 -2.7 -2.5   --  3.40
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    33    18     27   217   (SW)    612    clear     none
     17:00    30    18     15   214   (SW)    693    clear     none
     18:00    27    17     18   204  (SSW)    555    clear     none
     19:00    27    18     20   209  (SSW)    511    clear     none
     20:00    28    18     24   191    (S)   1067    clear     none
     21:00    27    18     28   231   (SW)   1104  ptly cldy   none
     22:00    28    19     32   229   (SW)   1417   cloudy     none
     23:00    27    19     24   242  (WSW)   1261   cloudy     none
     00:00    26    18     19   281    (W)    689   cloudy     none
     01:00    25    20     23   256  (WSW)          cloudy    humid
     02:00    24    21     21   267    (W)          cloudy    humid
     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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