Subject: 3.5m Night Log 20221128
From: mcmillan@apo.nmsu.edu
Date: Tue, 29 Nov 2022 13:42:36 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Monday, November 28, 2022
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
UW06  P.Szkody          P.Szkody
NM03  P.Holguin-Luna    P.Holguin-Luna,J.Burchett
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
UW06  KOSMOS         17:40   00:01
NM03  KOSMOS         00:19   06:23
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
UW06/R      17:06  00:10   0.5  0.5   0    0   1.5  4.6   0    0
NM03/R      00:10  06:37    0    0    0    0   6.4  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: R.McMillan
We had varying high clouds during first half.  Delay in opening after sunset was partly due to the clouds, and additionally there were some periods when we were open but not attempting to take data, so I did list some of that time as lost to weather.
The problem with varying bias levels in KOSMOS images cropped up in a few images, but not the majority of them.  It's unclear how much of a problem this poses for reductions.
During second half, the clouds improved somewhat, and observations with MOS inserts went fairly well.
                    ------- 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
--------------------------------------------------------------------------
 19:09 khigh   300(  340)  17  51  -0.1  0.7  1.4  0.9  0.3   -  1.99
 01:08 kimage   375(  379)  72  56  -0.1  0.0  0.6  0.1  0.1   -  1.66
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    32    13     14   239  (WSW)    671   cloudy     none
     17:00    32    13     12   235   (SW)    799 mstly cldy   none
     18:00    32    12     19   222   (SW)    823  ptly cldy   none
     19:00    33    13     15   231   (SW)    568  ptly cldy   none
     20:00    33    14     21   274    (W)    428  ptly cldy   none
     21:00    33    14     18   253  (WSW)    440 mstly clr    none
     22:00    34    15     27   267    (W)    636  ptly cldy   none
     23:00    34    16     26   232   (SW)    530 mstly cldy   none
     00:00    34    16     17   268    (W)    455 mstly cldy   none
     01:00    32    16     18   249  (WSW)    494 mstly cldy   none
     02:00    31    15     23   251  (WSW)    639  ptly cldy   none
     03:00    31    15     24   268    (W)    631 mstly clr    none
     04:00    31    15     21   255  (WSW)    613    clear     none
     05:00    30    15     17   246  (WSW)    603    clear     none
     06:00    29    17     20   238  (WSW)    897    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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