Subject: 3.5m Night Log 20181225
From: cgray@apo.nmsu.edu
Date: Wed, 26 Dec 2018 12:11:49 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Tuesday, December 25, 2018
                                                           ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
--------------------------------------------------------------------
M.Klaene          C.Gray                X              17:18   17:30
C.Gray            C.Gray                Echelle        --:--   --:--
   INST       SCHEDULED     WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B    D    B
 ----------------------------------------------------------------
EN01/O     17:12   03:33   3.2  7.0   0    0   0.2   0    0    0
NM03/O     03:33   06:55   0.0  3.4   0    0    0    0    0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: C.Gray
MERRY CHRISTMAS!!!
It wasn't a white Christmas on the ground, but it was in the air!  The night started out cloudy and, while Russet grabbed twilight clouds flats with arctic, we were not able to collect any other photons.  However, this did give us time to make a Christmas feast (and NOT burn down the building!).  Russet said she saw snow around 23:00 causing us all to run outside and see....nothing.  I suspect she was having a laugh to see how fast sleepy, full people could move ;)
I sleepily continued engineering tasks:
- zero rotator
- reset axis controller
When I reset the axis controller I must have done something wrong because the telescope was lost in az.  I couldn't find a typo anywhere so I'm not sure what happened.  I slewed to 104 and the telescope was at 204.  It took several attempts but I got there in the end (01:00-03:33).
I have NOT completed the pointing model reduction.
It's supposed to snow all day tomorrow but, as the wind started picking up and gusting over 35mph around 4am (expected to get to 45mph during the day), I decided against running the program while I was asleep.
DIS vacuum readings:
UT     bcam     bpump    rcam     rpump
00:00  3.13e-6  1.72e-7  5.23-6   5.60-7
01:00  2.66e-6  1.55e-7  5.08e-6  4.5e-7
05:00  2.11e-6  1.38e-7  5.08e-6  4.6e-7
                    ------- 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    38     6     15   187    (S)     47   cloudy     none
     17:00    40     4     18   182    (S)    147   cloudy     none
     18:00    40     5     24   181    (S)    101   cloudy     none
     19:00    41     5     20   176    (S)    112   cloudy     none
     20:00    42     8     23   194  (SSW)    409   cloudy     none
     21:00    42     9     15   201  (SSW)    316   cloudy     none
     22:00    39    15     28   197  (SSW)    439   cloudy     none
     23:00    39    15     13   178    (S)    303   cloudy     none
     00:00    37    17     27   195  (SSW)    280   cloudy     none
     01:00    37    17     15   187    (S)    350 mstly clr    none
     02:00    36    15     23   191    (S)    263 mstly clr    none
     03:00    36    17     21   178    (S)    336  ptly cldy   none
     04:00    35    19     16   199  (SSW)    375  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