Subject: 3.5m Night Log 20171030
From: trudyk@apo.nmsu.edu
Date: Tue, 31 Oct 2017 10:33:24 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Monday, October 30, 2017
                                                           ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
--------------------------------------------------------------------
Y.Notsu           Y.Notsu               ECHELLE        18:22   00:40
T.Marriage        M.Hilton              NICFPS         --:--   --:--
   INST       SCHEDULED     WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B    D    B
 ----------------------------------------------------------------
UW02/R     18:22   01:10    0    0.5  0    0   0.0  6.3   0    0
JH08/R     01:10   07:12    3.7  2.3  0    0   0.0  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: T.Rudyk
A system was moving in as night started.  There was a well-timed break in the clouds around sunset, so we attempted an opening. We were able to stay open well into the first half, since the observer's targets were bright and we could pierce the clouds.  By 00:40, rain was getting too close, and we closed the dome. Rain hit at 01:30.  The rain began to turn to light sleet/snow around 04:00. We called it a lost night shortly thereafter, and did not open again.
                    ------- 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
--------------------------------------------------------------------------
 18:28 ecamera    388( -226)  17  46   7.7 10.3 10.4 10.6  8.5   ND4  1.15
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    49    24     12   232   (SW)   1315  ptly cldy   none
     17:00    48    25     10   195  (SSW)   1478 mstly cldy   none
     18:00    47    26     10   207  (SSW)   1473  ptly cldy   none
     19:00    46    26     10   199  (SSW)   1163  ptly cldy   none
     20:00    46    26     12   186    (S)   1067 mstly cldy   none
     21:00    45    26     13   183    (S)   1158  ptly cldy   none
     22:00    43    27     11   197  (SSW)   1294  ptly cldy   none
     23:00    37    26      9   181    (S)   1050  ptly cldy   none
     00:00    41    27     10   182    (S)   1399  ptly cldy   none
     01:00    41    28     10   182    (S)   1619   cloudy   lt rain
     02:00    39    27     16   213  (SSW)   1480   cloudy   lt rain
     03:00    36    30      6   109  (ESE)   1314   cloudy   lt rain
     04:00    38    31     17   236   (SW)          cloudy   lt snow
     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