Subject: 3.5m Night Log 20160924
From: mcmillan@apo.nmsu.edu
Date: Sun, 25 Sep 2016 12:52:13 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Saturday, September 24, 2016
                                                           ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
--------------------------------------------------------------------
R.Wyse            K.Hawkins             ECHELLE        19:40   05:45
   INST       SCHEDULED     WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B    D    B
 ----------------------------------------------------------------
JH01/R     19:05   06:45    0   1.5   0    0   6.7  3.4   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: R.McMillan
Most of the night was mostly clear, with somewhat variable seeing.  Second half there were some clouds that grew thicker.  From 04:30 until we closed due to impenetrable clouds at 05:45, I estimate we were taking data maybe half the time, so I pro-rated the time listings above.
ARCTIC was having some ion pump pressure spikes which I only realized at the end of the night were due to cryogenic problems.  Hopefully that can be improved soon.
                    ------- 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
--------------------------------------------------------------------------
 19:42 ecamera    740( -205)  32  57  10.1 11.8 11.4 11.2 11.1   ND2  1.05
 22:46 ecamera    766( -291)  -5  51   9.8  9.5 10.1  9.4  9.4   Clear  1.79
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    58    37     10   206  (SSW)    832  ptly cldy   none
     17:00    56    35      3   246  (WSW)    920  ptly cldy   none
     18:00    56    35     10   257  (WSW)    979 mstly clr    none
     19:00    51    34      3   286  (WNW)    947 mstly clr    none
     20:00    49    33      3   296  (WNW)   1002    clear     none
     21:00    50    33      5   267    (W)   1067 mstly clr    none
     22:00    49    34      6   173    (S)   1264 mstly clr    none
     23:00    49    32      3   232   (SW)   1673    clear     none
     00:00    50    32      2   243  (WSW)   1814    clear     none
     01:00    50    32      1   228   (SW)   1796    clear     none
     02:00    50    32      1   165  (SSE)   1915    clear     none
     03:00    50    31      4   116  (ESE)   1250 mstly clr    none
     04:00    49    32     11    84    (E)   1187  ptly cldy   none
     05:00    47    29     13    80    (E)   1526  ptly cldy   none
     06:00    48    25     11    78  (ENE)   1168 mstly cldy   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: 2.5.1