Subject: 3.5m Night Log 20190109
From: decolib@apo.nmsu.edu
Date: Thu, 10 Jan 2019 11:27:59 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Wednesday, January 09, 2019
                                                           ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
--------------------------------------------------------------------
T.Murphy          R.McMillan            APOLLO         --:--   --:--
P.Nedialkov       P.Nedialkov           DIS            23:20   00:04
J.Keller          J.Keller              ARCTIC         --:--   --:--
   INST       SCHEDULED     WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B    D    B
 ----------------------------------------------------------------
AP01/R     17:23   18:23    0.0  1.0  0    0   0.0  0.0   0    0
UW06/R     18:23   00:10    2.8  2.3  0    0   0.7  0.0   0    0
CU03/R     00:10   06:58    6.8  0.0  0    0   0.0  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: D.DeColibus
First half of night was plagued with intermittent rain and clouds. After around 10 PM, the sky started clearing, but rain was still nearby on the radar and we didn't open until 23:20. The first half's observer got a single exposure's worth of data before switchover.
We attempted to stay open for the beginning of second half, but humidity hit our limit and we had to close at 00:34. The observers did not get any data during this time. The user needed at least two hours before twilight to get any useful data, and at 4 AM there was still no signs of improvement, with the humidity too high to open. We decided to close up for the night, as the forecast showed no promise of getting any better.
No other problems tonight.
-------
Survival lesson:
If you want to be noticed,
shine with more reflected light
(poem courtesy of Petko Nedialkov)
-------
                    ------- 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
--------------------------------------------------------------------------
 23:46 dcamera    779(  732) 217  61   4.2  5.0  5.7  5.0  4.6     1.16
 00:31 arctic   779(  828)  57  56   0.9  3.8  4.6  3.8  2.0   VR  3.04
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    40    35      6   188    (S)          cloudy    humid
     17:00    41    34     11   218   (SW)     61   cloudy   lt rain
     18:00    42    34      8   204  (SSW)     69   cloudy   lt rain
     19:00    41    35     14   236   (SW)     30   cloudy   lt rain
     20:00    40    36     12   227   (SW)        mstly cldy  humid
     21:00    39    35     10   209  (SSW)         ptly cldy  humid
     22:00    41    34     13   219   (SW)         ptly cldy  humid
     23:00    41    32     12   197  (SSW)         ptly cldy  humid
     00:00    39    33     14   186    (S)    137   cloudy     fog
     01:00    34    33      9   187    (S)          cloudy    humid
     02:00    39    35      8   200  (SSW)          cloudy    humid
     03:00    38    35     20   267    (W)          cloudy    humid
     04:00    39    35     13   265    (W)        mstly cldy  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