Subject: 3.5m Night Log 20220526
From: ajt@apo.nmsu.edu
Date: Fri, 27 May 2022 12:59:54 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Thursday, May 26, 2022
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
GS01  M.Crenshaw        M.Shea,Z.Chapman,G.Polack
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
GS01  KOSMOS         20:12   05:49
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
GS01/R      20:12  05:49    0    0   0.1   0   8.0  1.6   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: A.Townsend
Set KOSMOS camfocus to 2850 for 15.5C.
At 21:30 KOSMOS got stuck on writing out an image. I copied the image over and restarted the KOSMOS ICC, which fixed the problem.
Seeing got worse in the middle of the night, but improved when the wind shifted. However, the wind shift also brought in some dust/smoke (elevated 0.3- and 1.0-micron counts).
03:30 reversed fans due to dust/smoke. The enclosure 1-micron counts went up a little over 4000 at 03:45 so we waited on the current exposure to finish before we would have closed up, but the counts came back down immediately and were fine for the rest of the night.
Pollen Counts:
1955-2100 3.1 cts/cm2/hr
2120-2235 4.5
2245-2345 6.0
0000-0100 11.1
0120-0240 8.0
0250-0410 9.0  small dust/smoke spike
0420-0430 8.8
                    ------- FAILURE LOG -------
              FAILURE MODE     TIME
PROG   INSTR     TI/SHU    START  FINISH  DESCRIPTION
----------------------------------------------------------------------
GS01  KOSMOS    I/S       21:30  21:40   KOSMOS image stuck at writing, restarted ICC
            ---------------- FOCUS LOG ---------------
Time  Instrument  Focus     Az  El  Temp Strc Prim  Sec  Air  filt  FWHM
--------------------------------------------------------------------------
 20:42 khigh   217( 1325)  37  71  16.9 19.4 18.8 19.8 19.1   --  1.02
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    73    18     11   217   (SW)   1365    clear     none
     17:00    70    15      7   271    (W)    825    clear     none
     18:00    68    13     10   264    (W)    935    clear     none
     19:00    69    14      8   266    (W)    936    clear     none
     20:00    63    12      1   268    (W)    975    clear     none
     21:00    62    12      4   190    (S)    995    clear     none
     22:00    61    12      5   197  (SSW)   1064    clear     none
     23:00    62    12      9   138   (SE)    932    clear     none
     00:00    60    13     13   135   (SE)   1421    clear     none
     01:00    60    14     13   136   (SE)   1584    clear     none
     02:00    60    14      9   133   (SE)   1490    clear     none
     03:00    57    15      1   166  (SSE)   2057    clear     dust
     04:00    59    11      7   189    (S)   3615    clear     dust
     05:00    61    12      6   195  (SSW)   2739    clear     none
     06:00    58    14      8   190    (S)   2043    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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