Subject: 3.5m Night Log 20151108
From: mcmillan@apo.nmsu.edu
Date: Mon,  9 Nov 2015 12:52:26 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Sunday, November 08, 2015
                                                           ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
--------------------------------------------------------------------
K.Kwitter         K.Kwitter             DIS            --:--   --:--
B.Balick          K.Kwitter             DIS            00:50   04:30
   INST       SCHEDULED     WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B    D    B
 ----------------------------------------------------------------
NA01/R     17:15   00:10   6.9   0    0    0   0.0  0.0   0    0
UW01/R     00:10   06:19   0.7   0    0    0   3.6  0.8   0   1.0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: R.McMillan
First half we had dense fog.  In fact, it was so dense it saturated the particle counter for a while, which I have only seen before in heavy smoke.  The backup outside dewpoint sensor also went wonky (the first one has been out of service for about a week).  Sloan's dewpoint sensor was working and it, together with the particle counter, told us when the humidity dropped.  AFter that the sky was clear and the seeing was moderate.
The observer ran out of targets and backup targets while there was still some time left to go before twilight.
                    ------- 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
--------------------------------------------------------------------------
 00:56 dcamera    477(  140) 156  67   3.4  3.3  4.4  3.0  2.9   -  1.37
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp C Dewp C  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00                 11   265    (W)    736 mstly cldy  humid
     17:00                  8   239  (WSW)    778 mstly cldy   none
     18:00                 13   231   (SW) 146490   cloudy     fog
     19:00                 12   237  (WSW) 467337   cloudy     fog
     20:00                  9   244  (WSW) 436336   cloudy     fog
     21:00                  8   225   (SW) 279420   cloudy     fog
     22:00                  6   251  (WSW) 216746   cloudy     fog
     23:00                  8   258  (WSW) 125381   cloudy     fog
     00:00                  7   262    (W)  83976   cloudy     fog
     01:00                 12   271    (W)    259    clear     none
     02:00                 17   290  (WNW)    302    clear     none
     03:00                 15   280    (W)    506    clear     none
     04:00                 20   299  (WNW)    526    clear     none
     05:00                 13   283  (WNW)    529    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.
                          TELESCOPE STATUS
    Telescope drives operational. Current TCC version: 1.2.2
    Current TUI version: 2.4.0