Subject: 3.5m Night Log 20190123
From: mcmillan@apo.nmsu.edu
Date: Thu, 24 Jan 2019 12:49:52 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Wednesday, January 23, 2019
                                                           ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
--------------------------------------------------------------------
M.Klaene          R.McMillan            ARCTIC         17:40   18:20
M.Klaene          R.McMillan            ECHELLE        18:20   21:20
M.Klaene          R.McMillan            ARCTIC         21:20   00:25
M.Klaene          R.McMillan            SHACK          00:25   01:10
M.Klaene          R.McMillan            NA2GDR         01:10   04:00
C.Sayres          R.McMillan            AGILE          04:05   04:55
   INST       SCHEDULED     WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B    D    B
 ----------------------------------------------------------------
EN01/R     17:36   04:10    0    0    0    0   3.0  7.6   0    0
UW##/W/D   04:10   06:54    0   2.0   0    0   0.0  0.7   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: R.McMillan
It was clear all night long, with moderately food seeing at the beginning of the night which deteriorated second half as the wind picked up.  Eventually the wind forced me to close, but not before a lot was accomplished.
Tasks for tonight:
DIS red checkout (looks good!)
Echelle exposure time calculator observations
ARCTIC throughput
ARCTIC shutter tests
Shack-Hartmann collimation check (no change)
Pointing model (very small change)
Pickup science with Agile (guiding worked fine)
There were some problems with the echelle shutter (I think - this probably explains the problem Candace had yesterday with flats in the morning) and also one failure of the ARCTIC shutter.  But the problems were not repeating consistently - they might be cold-related, or might be just intermittent.  That will make them harder to diagnose, so we will all need to be alert in case they show up 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
--------------------------------------------------------------------------
 19:17 ecamera    702( -687) 209  53  -5.2 -4.8 -4.5 -5.0 -4.9   ND4  1.10
 21:46 arctic   821(  451) 313  47  -3.9 -4.5 -4.0 -4.4 -3.8   r  1.33
 01:27 guider   571(  195)  34  72  -3.6 -4.3 -3.8 -4.2 -3.9   B  1.56
 04:24 AGILE      875(-1726)  49  53  -4.5 -5.0 -4.5 -5.0 -4.6   BG40  1.96
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    27     1      4   264    (W)    108    clear     none
     17:00    23     1      2   286  (WNW)     77    clear     none
     18:00    22     2     15   318   (NW)     54    clear     none
     19:00    23     4     13   338  (NNW)     60    clear     none
     20:00    23     3     16   318   (NW)    104    clear     none
     21:00    25     4     15   330  (NNW)    122    clear     none
     22:00    26     5      9   286  (WNW)    116    clear     none
     23:00    25     5      3   346  (NNW)    106    clear     none
     00:00    25     6     12   333  (NNW)     93    clear     none
     01:00    25     6     14   351    (N)     90    clear     none
     02:00    26     7     16    27  (NNE)     66    clear     none
     03:00    24     7      6    10    (N)    102    clear     none
     04:00    23     7     17    18  (NNE)     90    clear     none
     05:00    24     6     29     1    (N)     86    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: 1.2.4
    Current TUI version: 2.6.0