Subject: 3.5m Night Log 20111114
From: dembicky@apo.nmsu.edu
Date: Tue, 15 Nov 2011 13:31:21 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Monday, November 14, 2011
                                                           ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
--------------------------------------------------------------------
W.Bhatti          W.Bhatti              SPICAM         --:--   --:--
D.York            S.Johnson             Echelle        01:00   04:25
M.Kasliwal        M.Kasliwal, Y.Cao     DIS            04:25   06:50
   INST       SCHEDULED     WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B    D    B
 ----------------------------------------------------------------
JH01/R     17:11   00:00   3.0  3.8   0    0    0    0    0    0
UC01/R     00:00   04:25    0   1.0   0    0   0.0  3.4   0    0
PU02/R/D   04:25   06:25    0    0    0    0    0   2.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: J.Dembicky
TOO program for last part of the night.
Clouds, humidity, and fog for the first half of the night.  Fog broke around 23:00 but humidity was still too high to safely open.  Used SDSS humidity instead of 3.5m (see below).
The 3.5m dewpoint sensor seems to be wrong.  I used SDSS readings instead.  We were in fog and the 3.5m was reading about 70%.  It finally started to climb when the humidity dropped below 100%.  Both readings were about the same once the humidity dropped below 85%. at 00:43 the 3.5m dewpoint went crazy, 119% humidity.  I think it may have been doing a calibration.  Dewpoint seemed to be working at the end of the night.
                    ------- 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
--------------------------------------------------------------------------
 02:12 ECHELLE   596( -982)  28  34   0.9  2.6  4.4  2.2  1.3   ND3  2.20
 04:23 ECHELLE   449(-1219) -31  47   0.7  1.2  1.8  1.2  0.8   ND1  1.50
 05:34 dis-slit   275( -370) -50  45   0.6  0.7  1.1  0.7  0.6   --  1.30
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    38    29      6   261    (W)    288   cloudy     none
     17:00    37    27     12   213  (SSW)   8576   cloudy     fog
     18:00    37    27     14   222   (SW)  50722   cloudy     fog
     19:00    36    27     11   235   (SW)   5538   cloudy     fog
     20:00    36    27     13   270    (W)   7627   cloudy     fog
     21:00    35    25     12   279    (W)  58339  ptly cldy   fog
     22:00    35    27     17   289  (WNW) 140382   cloudy     fog
     23:00    34    27     16   286  (WNW)    213    clear    humid
     00:00    33    28     18   292  (WNW)    152    clear     none
     01:00    34    29     13   313   (NW)    119    clear     none
     02:00    36    26     16   328  (NNW)     98    clear     none
     03:00    34    29     12   342  (NNW)    144    clear     none
     04:00    33    21     16     1    (N)    341    clear     none
     05:00    33    13     18   348  (NNW)    499    clear     none
     06:00    34     8     11    43   (NE)    668    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: 2.15.0
    Current TUI version: 1.9.3