Subject: 3.5m Night Log 20190122
From: cgray@apo.nmsu.edu
Date: Wed, 23 Jan 2019 12:24:39 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Tuesday, January 22, 2019
                                                           ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
--------------------------------------------------------------------
M.Klaene          C.Gray, R.McMillan    X              --:--   --:--
   INST       SCHEDULED     WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B    D    B
 ----------------------------------------------------------------
EN01/R     17:35   06:55  1.8  11.6  0    0    0    0    0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: C.Gray
The evening started out with light snow and complete cloud cover.  There was essentially no snow accumulation.  While things started to clear around 19:00, the humidity stayed high all night and we were never able to open.  As such, we were only able to do the following engineering tasks:
-restart Hub and TCC
-Restart axis controllers
-Test agile rotator (it's good)
-Test arctic shutter in the cold (below -7C) and everything looked good
Bill asked me to restart DIS red power supply and cryotiger, but the temperatures did not drop sufficiently enough to do any further requested work.
The first echelle IOL did not have any issues but at the end of the night the red exposures were bad.  The first one was saturated and bled upward across the chip while the second one bled downwards...??  Perhaps the shutter is not closing??  I tried taking a few exposures by hand but they all showed the same behavior and, therefore, there is no end of night IOL.
Time   bcam     bpump   rcam    rpump
17:00  2.92e-6  1.3e-7  3.22e-7 1.0e-8
01:00  2.79e-6  3.9e-7  1.4e-8  1.0e-8
05:00  2.71e-6  3.1e-7  5.4e-8  1.0e-8
----
Celebrating the snow and winter...and fact that I'm going to be up way past my bed time, here is my favorite Burns poem:
Up in the Morning Early
Cauld blaws the wind frae east to west,
The drift is driving sairly;
Sae loud and shrill’s I hear the blast,
I’m sure it’s winter fairly.
Up in the morning’s no for me,
Up in the morning early;
When a’ the hills are cover’d wi’ snaw,
I’m sure its winter fairly.
The birds sit chittering in the thorn,
A’ day they fare but sparely;
And lang’s the night frae e’en to morn,
I’m sure it’s winter fairly.
Up in the morning’s no for me,
Up in the morning early;
When a’ the hills are cover’d wi’ snaw,
I’m sure its winter fairly.
                    ------- 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
--------------------------------------------------------------------------
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    20    16     11   336  (NNW)          cloudy   lt snow
     17:00    20    16      6   334  (NNW)          cloudy   lt snow
     18:00    18    14     15    53   (NE)          cloudy    humid
     19:00    16    13     15    74  (ENE)         ptly cldy  humid
     20:00    16    11      6    81    (E)         ptly cldy  humid
     21:00    18    14      8   289  (WNW)           clear    humid
     22:00    18    13     10   297  (WNW)           clear    humid
     23:00    17    14     11   305   (NW)           clear    humid
     00:00    16    13     10   309   (NW)           clear    humid
     01:00    16    15     14   317   (NW)           clear    humid
     02:00    15    12     12   330  (NNW)           clear    humid
     03:00    15    12     17   329  (NNW)           clear    humid
     04:00    15    11     10   322   (NW)           clear    humid
     05:00    14    11     23   359    (N)           clear    humid
     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