Subject: 3.5m Night Log 20190916
From: trudyk@apo.nmsu.edu
Date: Tue, 17 Sep 2019 10:23:51 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Monday, September 16, 2019
                                                           ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
--------------------------------------------------------------------
D.Buzasi          D.Buzasi              ECHELLE        21:34   00:20
J.Wisniewski      J.Wisniewski          ARCTIC         --:--   --:--
   INST       SCHEDULED     WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B    D    B
 ----------------------------------------------------------------
FG02/R     19:17   01:10    1.5  1.6  0    0   0.0  2.8   0    0
OU01/R     01:10   06:40    0    5.5  0    0   0.0  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: T.Rudyk
Evening started out cloudy and rainy. Eventually rain stopped, but we had frequent sudden humidity spikes and rain erissitng near us on radar. We took a risk of opening at 21:30 and were able to stay open for a few hours, until a solid bout of high humidity closed us again after midnight. Humidity stayed high until the transit was over and the observer called it quits at 04:00.
                    ------- FAILURE LOG -------
PROG   INST   FAILURE MODE     TIME
    (SEDFNVOG)   TI/SHU    START  FINISH  DESCRIPTION
----------------------------------------------------------------------
            ---------------- FOCUS LOG ---------------
Time  Instrument  Focus     Az  El  Temp Strc Prim  Sec  Air  filt  FWHM
--------------------------------------------------------------------------
 21:38 ecamera    201( -321)  86  70  11.9 13.4 13.5 13.4 12.2   ND1  1.07
 23:13 ecamera    449( -126)   6  42  11.6 11.9 12.4 11.9 11.8   ND2  0.98
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    58    50      9   202  (SSW)    139 mstly cldy   none
     17:00    63    53     13   188    (S)    118 mstly cldy   none
     18:00    58    51     11   233   (SW)    104 mstly cldy   rain
     19:00    56    49      9   211  (SSW)     73 mstly cldy lt rain
     20:00    54    50      5   207  (SSW)        mstly cldy  humid
     21:00    53    49     11   145   (SE)        mstly cldy  humid
     22:00    53    48     14   176    (S)         ptly cldy   none
     23:00    53    48      8   181    (S)    115  ptly cldy   none
     00:00    53    49      6   185    (S)         ptly cldy  humid
     01:00    52    49      9   201  (SSW)         ptly cldy  humid
     02:00    51    49      9   215   (SW)         ptly cldy  humid
     03:00    52    49     12   217   (SW)         ptly cldy  humid
     04:00    52    50     10   229   (SW)         ptly cldy  humid
     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.
                          TELESCOPE STATUS
    Telescope drives operational. Current TCC version: 1.2.4
    Current TUI version: 2.6.0