Subject: 3.5m Night Log 20201011
From: trudyk@apo.nmsu.edu
Date: Mon, 12 Oct 2020 13:14:59 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Sunday, October 11, 2020
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
UW12  G.Wallerstein     M.Thompson
UW01  S.Hawley          J.Wisniewski, G.Stefansson
AP02  T.Murphy          R.McMillan
                         ACTUAL
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
UW12  DIS            18:40   21:44
UW01  ARCTIC         21:56   05:34
AP02  APOLLO         05:38   06:58
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
UW12/R      18:43  21:50    0    0    0    0   3.1  0.0   0    0
UW01/R      21:50  05:40    0    0    0    0   4.3  3.5   0    0
AP02/R      05:40  06:57    0    0    0    0   0.0  1.3   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: T.Rudyk
Evening started clear but with medium high winds and poor seeing. Seeing and winds settled down around 22:00. Seeing once again worsened after 02:00. We were open all 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
--------------------------------------------------------------------------
 19:07 dcamera    684( 1136)  93  59  13.3 14.5 14.9 13.9 13.2   -  1.84
 19:37 dcamera    560(  989)  39  50  12.9 13.8 14.4 13.3 13.0   -  1.50
 22:01 arctic   485( 1005) -18  57  12.5 12.1 12.8 12.0 12.2   SEMROCK  1.12
 05:44 APOLLO     450( 1582)  84  31  11.4 10.8 11.4 10.8 11.2   530  1.50
            ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    61    18     24   261    (W)   1455    clear     none
     17:00    61    19     22   255  (WSW)   1330    clear     none
     18:00    60    19     25   249  (WSW)   1038    clear     none
     19:00    56    20     20   258  (WSW)    704    clear     none
     20:00    55    19     23   269    (W)    459    clear     none
     21:00    54    18     14   254  (WSW)    495    clear     none
     22:00    55    19     27   294  (WNW)    449    clear     none
     23:00    53    19      8   281    (W)    584    clear     none
     00:00    54    20      7   357    (N)    974    clear     none
     01:00    54    20     12   339  (NNW)    983    clear     none
     02:00    53    20     20    27  (NNE)   1963    clear     none
     03:00    53    20     17    20  (NNE)   1620    clear     none
     04:00    53    20     18    33  (NNE)   1578    clear     none
     05:00    52    20     19    52   (NE)   1611    clear     none
     06:00    52    15     17    58  (ENE)   1392    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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