Subject: 3.5m Night Log 20211109
From: ajt@apo.nmsu.edu
Date: Wed, 10 Nov 2021 13:51:24 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Tuesday, November 09, 2021
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
UV06  M.Skrutskie       O.Fox
NM05  M.Croom           M.Croom
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
UV06  TSPEC          18:50   22:48
NM05  KOSMOS         01:45   06:21
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
UV06/R      17:14  00:10   1.3  1.6   0    0   0.9  3.1   0    0
NM05/O      00:10  06:21   1.6   0    0    0   4.6  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: A.Townsend,R.McMillan
We were harried by clouds again tonight, and stayed closed until 18:45 when they started to improve. A second wave of clouds rolled through from 22:45 - 01:45 along with some radar returns. The rest of the night we had decent weather.
The instruments and 3.5m telescope all behaved well, though ARCSAT had a few hiccups and I got to learn how to zenith it.
                    ------- 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
--------------------------------------------------------------------------
 18:57 tcamera    260( 1164)  36  38   8.7 10.3 10.3 10.0  9.1   Ks  0.98
 01:56 kcamera   425(  761) 182  70   7.6  7.2  7.8  7.3  7.2   --  1.64
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    50    16      5   234   (SW)    473   cloudy     none
     17:00    49    13      9   263    (W)    434   cloudy     none
     18:00    48    13     13   237  (WSW)    508 mstly cldy   none
     19:00    48    14     13   250  (WSW)    656 mstly clr    none
     20:00    48    15     15   215   (SW)    675 mstly clr    none
     21:00    47    18     17   266    (W)    883  ptly cldy   none
     22:00    47    12     19   265    (W)    446  ptly cldy   none
     23:00    48    14     15   262    (W)    484   cloudy     none
     00:00    48    14     16   265    (W)    513   cloudy     none
     01:00    47    14     17   243  (WSW)    724 mstly cldy   none
     02:00    46    15     24   268    (W)    736  ptly cldy   none
     03:00    45    15     22   281    (W)    883 mstly clr    none
     04:00    42    14     20   274    (W)    536    clear     none
     05:00    41    12     19   298  (WNW)    579    clear     none
     06:00    40    11     12   315   (NW)    512    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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