Subject: 3.5m Night Log 20210621
From: ajt@apo.nmsu.edu
Date: Tue, 22 Jun 2021 11:57:04 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Monday, June 21, 2021
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
DD05  A.Kowalski        G.Stefansson,J.Wisniewski
UW13  G.Wallerstein     M.Thompson
UW02  P.Yoachim         J.Jiang
                         ACTUAL
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
DD05  ARCTIC         20:32   01:04
UW13  DIS            01:23   02:30
UW02  ARCTIC         02:48   05:42
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
DD05/R      20:23  01:10    0    0    0    0   0.0  4.8   0    0
UW13/R      01:10  02:30    0    0    0    0   0.0  1.3   0    0
UW02/R      02:30  05:47    0    0    0    0   1.8  1.4   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: A.Townsend,J.Dembicky
Despite a thunder/hailstorm in the afternoon, the sky cleared up and we had photometric seeing for much of the night with no weather problems.
Gummi tested the new sky flat script with ARCTIC and thought it worked well.
For training: Amanda got to both mount and unmount DIS in the middle of the night.
                    ------- 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
--------------------------------------------------------------------------
 20:56 arctic   379( 1199)  81  69  19.7 18.6 19.2 18.0 18.7   SDSS_i  0.71
 01:53 dcamera    357(  921)  -7  28  16.3 16.3 16.9 16.1 16.1   --  1.50
 03:00 arctic   494( 1192) -10  57  16.6 15.9 16.6 15.7 16.1   SDSS_g  0.88
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    67    42     13    87    (E)   1889   cloudy     rain
     17:00    51    32     21    86    (E)   3316 mstly cldy lt rain
     18:00    63    32     15    83    (E)   1189  ptly cldy   none
     19:00    62    32     17    77  (ENE)   1560 mstly clr    none
     20:00    67    32      8    52   (NE)   1401    clear     none
     21:00    67    32      2   308   (NW)   2158    clear     none
     22:00    66    32      6   334  (NNW)   2353    clear     none
     23:00    64    32      8   280    (W)   2250 mstly clr    none
     00:00    63    32      5   255  (WSW)   1709    clear     none
     01:00    62    32      1   207  (SSW)   1855    clear     none
     02:00    61    31      6   240  (WSW)   2184    clear     none
     03:00    62    31      6   265    (W)   2622    clear     none
     04:00    57    32      5   259    (W)   2746    clear     none
     05:00    56    31      9   211  (SSW)   3576 mstly clr    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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