Subject: 3.5m Night Log 20190221
From: dembicky@apo.nmsu.edu
Date: Fri, 22 Feb 2019 11:55:25 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Thursday, February 21, 2019
                                                           ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
--------------------------------------------------------------------
M.Klaene         J.Dembicky, R.McMillan ecam           18:02   22:40
M.Klaene         J.Dembicky, R.McMillan DIS            01:55   03:40
   INST       SCHEDULED     WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B    D    B
 ----------------------------------------------------------------
EN01/W     18:02   06:31   0    6.2   0    0   2.4  3.9   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: J.Dembicky
zero'ed NA2 rotator (-0.016 deg off)
Bill installed the new ecamera guider today, we mostly did engineering work on that tonight.  We found problems with the image readouts getting shifted part way through the readout.  about 5-10% of the time this was occuring.
Bill should switch back to the old ecamera until we can get the readout issues resolved with the new one.  Jon will also need to re-install the old software after the swap, Russet wasn't sure if she had all the instructions to do so.
DIS focus vs spectra (seeing was too poor)
I took DIS spectra of John Bally's object as well as cals for him.
Poor seeing conditions and random clouds prevented us from finishing the DIS slitviewer vs. spectra and ARCTIC throughput, as well as a collimation check.
by 04:20 the sky was clouding up on us again.
                    ------- 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
--------------------------------------------------------------------------
 02:05 dcamera    615(  197)  28  73  -3.3 -2.2 -2.3 -2.5 -3.2   --  1.37
 02:50 dcamera    688(  203) 157  74  -4.5 -3.5 -3.1 -3.6 -4.5   --  1.86
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    32     5     17   236   (SW)    995   cloudy     none
     17:00    32     8     20   215   (SW)    725   cloudy     none
     18:00    31    10     20   224   (SW)    724   cloudy     none
     19:00    31     7     19   222   (SW)    792   cloudy     none
     20:00    30     3     10   246  (WSW)   2766   cloudy     none
     21:00    29     3      9   234   (SW)   1546   cloudy     none
     22:00    28     3     11   241  (WSW)   1342   cloudy     none
     23:00    29     2     15   223   (SW)   1349   cloudy     none
     00:00    28     5     11   214   (SW)    915   cloudy     none
     01:00    27     5     14   241  (WSW)    696  ptly cldy   none
     02:00    26     6     13   213  (SSW)    664 mstly clr    none
     03:00    26    11     14   231   (SW)    508 mstly clr    none
     04:00    26    10     14   234   (SW)    523  ptly 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: 1.2.4
    Current TUI version: 2.6.0