Subject: 3.5m Night Log 20181024
From: dembicky@apo.nmsu.edu
Date: Thu, 25 Oct 2018 13:09:43 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Wednesday, October 24, 2018
                                                           ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
--------------------------------------------------------------------
M.Klaene          J.Dembicky            na2gdr         05:07   07:07
   INST       SCHEDULED     WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B    D    B
 ----------------------------------------------------------------
EN01/W     18:29   07:07  0.3  10.3  0    0   0.0  2.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: J.Dembicky
Humidity at the start of the night.
Humidity finally started to drop around 01:00.  The optidew sensor was frozen, I used the older 3.5m sensor and SDSS sensor to monitor humidity levels outside. This only lasted about 20 mins and then humidity spiked again.
I rotated ARCTIC and observed if the diffuser had issues moving in/out.  I did not see any issues in any orientation.  I places a piece of red tape on the top of the diffuser carriage so I could see it thru the filter wheel slot (removed filter wheel) when it was out.
I worked on measuring filters tonight and updating the database. Shelf 10 & 11 are done.
I did instrument fills at 02:45, it was foggy again outside.
Humidity dropped again around 04:40, I opened around 05:00 to do a pointing model.
Since my time was limited I ran the high alt 50 point pointing model tonight.
Implemented the model & checked with 1 star on NA2
                    ------- 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
--------------------------------------------------------------------------
 05:17 guider   625(  730)  24  54   3.8  4.9  6.5  4.6  3.7   R  1.25
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    41    41     14   308   (NW)        mstly cldy  humid
     17:00    41    40      6   286  (WNW)         ptly cldy  humid
     18:00    42    40     12   309   (NW)          cloudy    humid
     19:00    41    41     16   289  (WNW)          cloudy    humid
     20:00    41    42     10   269    (W)          cloudy    humid
     21:00    41    41     13   276    (W)          cloudy     fog
     22:00    42    42     16   277    (W)          cloudy     fog
     23:00    42    42     13   266    (W)          cloudy     fog
     00:00    41    41     13   286  (WNW)          cloudy     fog
     01:00    42    32     16   290  (WNW)         ptly cldy   none
     02:00    40    40     12   324   (NW)          cloudy     fog
     03:00    39    39      7   336  (NNW)          cloudy     fog
     04:00    39    35      6   329  (NNW)        mstly clr    none
     05:00    39    32     10   344  (NNW)        mstly clr    none
     06:00    40    30     15   353    (N)        mstly clr    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