Subject: 3.5m Night Log 20150504
From: mcmillan@apo.nmsu.edu
Date: Tue,  5 May 2015 11:03:19 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Monday, May 04, 2015
                                                           ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
--------------------------------------------------------------------
M.Klaene          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     19:56   01:10   0.5  4.7   0    0   0.0  0.0   0    0
EN01/R     01:10   06:04    0   4.9   0    0   0.0  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: R.McMillan
We had multiple thunderstorms with lightning and heavy rain for much of the night.  The sky began to improve after 2:30 local time, but humidity was borderline.  Given our task list, I didn't think it was worth opening for less than photometric weather.  But when it was clear for a while and the humidity appeared stable, I tried opening to get some throughput standards.  As soon as I did, the clouds reappeared and the humidity spiked.  I didn't even have time to get the telescope properly focused before I had to close due to high humidity.
While the dome was closed, I adjusted the spectrograph focus on DIS, and I took lots of object images with Tspec, which remained in a happy state for many hours.
                    ------- 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 C Dewp C  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    46    40     17   116  (ESE)    617   cloudy   lt rain
     17:00    44    38     22   169    (S)    648   cloudy     none
     18:00    43    39      9    75  (ENE)    537   cloudy     none
     19:00    46    37     15   137   (SE)    774   cloudy   lt rain
     20:00    44    41      7   335  (NNW)    943   cloudy   lt rain
     21:00    46    39      6   278    (W)    854   cloudy     rain
     22:00    44    41      9   260    (W)    885   cloudy     rain
     23:00    44    41     10   263    (W)    851   cloudy     rain
     00:00    41    41     19   281    (W)  26111   cloudy     rain
     01:00    39    37      7   241  (WSW)    762   cloudy     rain
     02:00    41    36     13   273    (W)    879  ptly cldy lt rain
     03:00    41    35     15   300  (WNW)    899    clear     none
     04:00    39    36     17   313   (NW)    686  ptly 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: 1.0.4
    Current TUI version: 2.3.3