Subject: 3.5m Night Log 20190618
From: mcmillan@apo.nmsu.edu
Date: Wed, 19 Jun 2019 11:53:20 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Tuesday, June 18, 2019
                                                           ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
--------------------------------------------------------------------
B.Ketzeback       R.McMillan            ARCTIC         20:25   22:25
B.Ketzeback       R.McMillan            ARCTIC         00:25   01:03
D.Gies            K.Lester,             ECHELLE        01:06   05:30
                  K.Shepard,A.Couperus
   INST       SCHEDULED     WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B    D    B
 ----------------------------------------------------------------
EN01/R     20:23   01:10    0   2.0   0    0   1.2  1.6   0    0
GS01/R     01:10   05:46    0    0    0    0   0.0  4.6   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: R.McMillan
The night was mostly clear, except of course for the period when I wanted to do photometry - then it was fairly cloudy.  I did manage to get some throughput measurements before and after the cloudy period, and then the sky cleared nicely if not perfectly for the second half observations.
                    ------- 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
--------------------------------------------------------------------------
 21:22 arctic   552( 1520) -57  33  16.8 17.6 17.9 17.2 17.1   g  1.16
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    70    29     19   255  (WSW)    512    clear     none
     17:00    71    30     27   265    (W)    667    clear     none
     18:00    71    28     12   259    (W)    410    clear     none
     19:00    67    25     15   265    (W)    478    clear     none
     20:00    64    25     13   247  (WSW)    571    clear     none
     21:00    62    26     17   241  (WSW)    569    clear     none
     22:00    62    26      9   253  (WSW)    573  ptly cldy   none
     23:00    62    24     18   244  (WSW)    549 mstly cldy   none
     00:00    60    21     12   269    (W)    422  ptly cldy   none
     01:00    60    20     14   280    (W)    441    clear     none
     02:00    60    21     13   297  (WNW)    506 mstly clr    none
     03:00    60    20     14   303  (WNW)    463  ptly cldy   none
     04:00    58    26     15    11    (N)    506 mstly clr    none
     05:00    58    24     12    13  (NNE)    471 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.
                          TELESCOPE STATUS
    Telescope drives operational. Current TCC version: 1.2.4
    Current TUI version: 2.6.0