Subject: 3.5m Night Log 20170923
From: cgray@apo.nmsu.edu
Date: Sun, 24 Sep 2017 12:46:49 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Saturday, September 23, 2017
                                                           ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
--------------------------------------------------------------------
D.Chojnowski      D.Chojnowski          ECHELLE        20:34   21:22
N.Dello           A.McKay               ECHELLE        03:25   06:08
   INST       SCHEDULED     WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B    D    B
 ----------------------------------------------------------------
NM03/R     19:07   01:10   3.7  1.5   0    0    0   0.8   0    0
JH06/R     01:10   06:45   2.3   0    0    0   3.3  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: C.Gray
Humidity, clouds, threat of rain, fog and, eventually, clarity.
We opened in what we thought was a sucker hole but, alas, as soon as I opened the dome the clouds formed. However, I think one spectra was obtained.
The humidity lifted around 3am and we were able to reopen.  The seeing was never really good.
The ion pump for DIS red ion pump needed restarting (High voltage reset, not power cycle) at dawn.
                    ------- 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
--------------------------------------------------------------------------
 19:53 ecamera    256( -191) 144  72  13.3 13.9 14.1 13.9 13.1   ND2  1.91
 02:34 ecamera    357( -236)  62  62   7.9 10.9 12.7 10.4  8.4   ND1  1.78
 03:58 ecamera    181( -518)  25  64   8.0  8.9  9.8  8.4  8.1   ND3  1.12
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    61    49     20   216   (SW)        mstly clr    none
     17:00    59    48     15   211  (SSW)         ptly cldy   none
     18:00    58    48     14   202  (SSW)         ptly cldy   none
     19:00    56    45     11   184    (S)         ptly cldy   none
     20:00    56    45     13   186    (S)        mstly cldy   none
     21:00    56    46     14   222   (SW)          cloudy    humid
     22:00    54    47     16   239  (WSW)          cloudy    humid
     23:00    53    52     22   235   (SW)          cloudy    humid
     00:00    52    52     13   214   (SW)          cloudy    humid
     01:00    50    50     11   222   (SW)          cloudy     fog
     02:00    47    47      9   228   (SW)          cloudy     fog
     03:00    46    41     17   237  (WSW)           clear    humid
     04:00    47    36     14   265    (W)           clear    humid
     05:00    46    36     11   265    (W)           clear     none
     06:00    47    34     15   280    (W)           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: 2.6.0