Subject: 3.5m Night Log 20170721
From: trudyk@apo.nmsu.edu
Date: Sat, 22 Jul 2017 11:25:57 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Friday, July 21, 2017
                                                           ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
--------------------------------------------------------------------
J.Bally           J.Bally               ARCTIC         22:37   00:50
J.Hughes          J.Hughes              ARCTIC         --:--   --:--
   INST       SCHEDULED     WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B    D    B
 ----------------------------------------------------------------
CU06/R     20:18   01:10    2.6  0    0    0   2.3  0.0   0    0
SU01/R     01:10   06:02    4.1  0.7  0    0   0.0  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: T.Rudyk
Monsoon storms greeted the evening.  The rain and clouds cleared out by 22:30, and we risked an opening.  Unfortunately, by 0100, humidty had begun to spike.  Unlike last night, the humidity stubbornly remained on the high end, above safe limits for several hours, precluding any chance of opening. The night was called 30 minutes before sunrise, with no hope of opening and getting data in the time remaining.
                    ------- 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
--------------------------------------------------------------------------
 22:57 arctic   650( 1308)  42  49  13.4 15.6 16.1 15.4 14.9   UNM657  0.97
            ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    53    46     12    90    (E)    975   cloudy     rain
     17:00    58    49     11   179    (S)    475   cloudy     rain
     18:00    56    51     13    92    (E)    818   cloudy     none
     19:00    59    47     10   183    (S)    547   cloudy     none
     20:00    58    43     13   176    (S)    249   cloudy     none
     21:00    57    47      8   187    (S)    668   cloudy     none
     22:00    57    50     10   194  (SSW)    815  ptly cldy   none
     23:00    56    48      6   187    (S)    738  ptly cldy   none
     00:00    55    52     13   189    (S)         ptly cldy   none
     01:00    54    52      1   222   (SW)         ptly cldy  humid
     02:00    54    51      5   188    (S)         ptly cldy  humid
     03:00    55    52      4   193  (SSW)         ptly cldy  humid
     04:00    55    52      4   201  (SSW)         ptly cldy  humid
     05:00    55    52      6   188    (S)         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: 1.2.2
    Current TUI version: 2.6.0