Subject: 3.5m Night Log 20231210
From: mcmillan@apo.nmsu.edu
Date: Mon, 11 Dec 2023 13:32:11 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Sunday, December 10, 2023
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
JH02  Z.Rustamkulov     Z.Rustamkulov
NM07  D.Bizyaev         D.Bizyaev
GS01  D.Michael         J.Falcone,M.Shea
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
JH02  KOSMOS         17:05   19:05
NM07  KOSMOS         19:07   00:09
GS01  KOSMOS         00:11   06:17
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
JH02/R      17:06  19:06    0    0    0    0   2.0  0.0   0    0
NM07/R      19:06  00:10    0    0    0    0   5.1  0.0   0    0
GS01/R      00:10  06:47    0    0    0    0   5.4  1.2   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: R.McMillan
Mostly clear at the start of the night, with increasing high clouds during second half.  Seeing was good, but most of the time probably not as good as the best focus measurement.
There was a collision interlock lit up at the time of checkout, but it cleared on the first try and sunsequent slews were fine.  The ARCTIC ion pump is at high load, but it's maintaining temperature so the vacuum isn't too soft.
                    ------- 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
--------------------------------------------------------------------------
 17:44 kimage   650( 1093)   9  52   2.5  1.8  2.8  2.5  2.4   -  2.02
 19:25 kimage   425(  856) -30  48   2.7  1.5  2.7  2.3  2.5   -  0.76
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    39   -14     18     4    (N)     74 mstly clr    none
     17:00    38   -15     16     4    (N)     78 mstly clr    none
     18:00    37   -16     10     6    (N)     97    clear     none
     19:00    37   -15     18    23  (NNE)     92    clear     none
     20:00    37   -15     24    15  (NNE)    160 mstly clr    none
     21:00    38   -14     16    19  (NNE)    177 mstly clr    none
     22:00    39   -13     15     2    (N)    240 mstly clr    none
     23:00    38    -4     16     1    (N)    145 mstly clr    none
     00:00    38     2     14   355    (N)    123  ptly cldy   none
     01:00    39    20     25    14  (NNE)     39  ptly cldy   none
     02:00    39    17     23     0    (N)     29  ptly cldy   none
     03:00    39    20     17    18  (NNE)     26  ptly cldy   none
     04:00    39    18     21    18  (NNE)     39  ptly cldy   none
     05:00    41    10     20    14  (NNE)     29  ptly cldy   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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