Subject: 3.5m Night Log 20210318
From: cgray@apo.nmsu.edu
Date: Fri, 19 Mar 2021 12:40:58 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Thursday, March 18, 2021
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
CU01  K.France          K.France and class
OU04  A.Kosakowski      A.Kosakowski
                         ACTUAL
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
CU01  DIS            19:22   23:50
OU04  DIS            23:58   06:30
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
CU01/R      19:22  01:10    0    0    0    0   0.9  4.9   0    0
OU04/R      01:10  06:59    0    0    0    0   5.8  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: C.Gray
The red grating was off on the wavelength centers after the first move, enough that I tried removing the center off and then back on and it solved the issue.
AP01 was scheduled for the first hour but they ceded their time to CU01. Weather was clear and we had good seeing all night. The CU class was able to collected enough data to run out of objects! So we naturally went on an eye candy tour with the DIS slitviewer. Images to come later
                    ------- 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
--------------------------------------------------------------------------
 19:24 dcamera    201(  242) 272  57   2.1  5.7  5.6  5.3  3.2   --  1.46
 20:40 dcamera    345(  281) 121  61   3.1  3.5  3.7  3.0  2.9   --  1.20
 22:48 dcamera    505(  405)  91  49   3.9  2.6  3.7  2.9  3.5   --  1.36
 23:31 dcamera    545(  432) 146  63   3.5  2.5  3.7  3.0  3.2   --  1.28
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    48    16     12   228   (SW)   1779 mstly clr    none
     17:00    46    14     10   247  (WSW)   1872 mstly clr    none
     18:00    43    12      7   189    (S)   1996 mstly clr    none
     19:00    41    11     11   222   (SW)   2186 mstly clr    none
     20:00    36    11     10   130   (SE)   2206    clear     none
     21:00    36    11      7   118  (ESE)   1888    clear     none
     22:00    39    10      5   115  (ESE)   1633    clear     none
     23:00    38    11      9   126   (SE)   1738    clear     none
     00:00    39    11      9   182    (S)   1639    clear     none
     01:00    40     3      7   196  (SSW)   1001    clear     none
     02:00    39     0      3   199  (SSW)    914    clear     none
     03:00    37     6      5   192  (SSW)   1881    clear     none
     04:00    37     9      4   206  (SSW)   2022    clear     none
     05:00    36    10      5   254  (WSW)   2195    clear     none
     06:00    36    11      3   211  (SSW)   2935    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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