Date: Mon, 15 Apr 2013 12:35:03 -0000 (UTC)
Subject: 3.5m Night Log 20130414
From: mcmillan@apo.nmsu.edu
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Sunday, April 14, 2013
                                                           ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
--------------------------------------------------------------------
T.Murphy          R.McMillan            APOLLO         20:10   20:28
P.Szkody          A.Mukadam             DIS            20:35   22:15
                                                       23:40   01:05
T.Thuan           Y.Izotov              DIS            01:10   06:05
   INST       SCHEDULED     WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B    D    B
 ----------------------------------------------------------------
DD01/R     19:41   20:26    0   0.5   0    0   0.0  0.3   0    0
UW04/R     20:26   01:10    0   1.4   0    0   1.5  1.9   0    0
UV01/R     01:10   06:25    0    0    0    0   5.2  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: R.McMillan
Skies were clear all night, with variable seeing.  Dust was high before
sunset but came down during twilight.  Wind was near the limit almost all
night, above the limit some of the time, and we did close for a while
during the worst wind gusts.
Even when the wind was below the limit, we had some telescope difficulties
while pointing near the wind.  The worst cases included telescope/dome
collision and 32 mph wind pushing the telescope even with brake engaged.
After that I became more emphatic about keeping the telescope pointed away
from the wind, and everything was much nicer.
                    ------- 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
--------------------------------------------------------------------------
 19:56 BLUE_DIS   575(  353) 131  72   9.1  9.4  9.6  9.2  8.7   g  1.25
 23:03 BLUE_DIS   475(  164) 147  70   7.5  7.6  8.2  7.6  7.1   g  1.44
 00:19 dis-slit   492(  144) 237  84   6.8  6.9  7.4  7.0  6.7   -  1.10
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    57    19     27   243  (WSW)   9924    clear     dust
     17:00    55    19     30   259    (W)   9037    clear     dust
     18:00    53    20     22   265    (W)   9894    clear     dust
     19:00    52    20     31   244  (WSW)   5473    clear     dust
     20:00    49    18     25   257  (WSW)   4901    clear     none
     21:00    49    17     27   266    (W)   3013    clear     none
     22:00    48    18     33   254  (WSW)   2195    clear     none
     23:00    47    17     24   268    (W)   2093    clear     none
     00:00    46    17     26   256  (WSW)   2447    clear     none
     01:00    45    18     20   250  (WSW)   2137    clear     none
     02:00    43    18     23   256  (WSW)   2665    clear     none
     03:00    41    20     15   256  (WSW)   2102    clear     none
     04:00    40    22     22   266    (W)   2429    clear     none
     05:00    40    23     11   261    (W)   2560    clear     none
     06:00    37    23     21   232   (SW)   2461    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: 2.15.0
    Current TUI version: 2.0.0