Subject: 3.5m Night Log 20170403
From: dembicky@apo.nmsu.edu
Date: Tue,  4 Apr 2017 10:40:11 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Monday, April 03, 2017
                                                           ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
--------------------------------------------------------------------
D.Gies            K.Lester              ECHELLE        18:50   22:50
M.Kilic           A.Kosakowski          DIS            --:--   --:--
   INST       SCHEDULED     WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B    D    B
 ----------------------------------------------------------------
GS05/R     19:34   01:10    0   1.6   0    0   0.0  4.0   0    0
OU04/R     01:10   06:39   4.0  1.5   0    0   0.0  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: J.Dembicky
We fought with clouds for the first half.  They finally got too thick to observer anything thru around 22:50.  I remained open, but we were not observing much.  Dust was also climbing and I opted to close the dome around 00:10 when the counts hit 5000.  We were pretty much clouded out anyhow so no need to risk it.
Dust spiked at 04:15.  My observers called it a night at that point as they needed 1.5+ hrs min for their long period binary observations.  By 04:30 dust was at 14K and winds now 36+ MPH and it was cloudy.
                    ------- 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
--------------------------------------------------------------------------
 18:55 ecamera   1065(  -89) 202  41   6.2  7.5  7.1  7.4  6.8   ND2  1.50
 19:51 ecamera    955( -280) 260  79   6.0  6.3  6.7  6.4  6.2   ND2  0.86
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    51    25     18   243  (WSW)    845  ptly cldy   none
     17:00    47    20     23   237  (WSW)   1080  ptly cldy   none
     18:00    45    20     20   261    (W)   1245  ptly cldy   none
     19:00    44    20     16   249  (WSW)   1171  ptly cldy   none
     20:00    43    20     13   259    (W)   1251  ptly cldy   none
     21:00    43    19     14   258  (WSW)   1449 mstly cldy   none
     22:00    43    18     17   246  (WSW)   1572   cloudy     none
     23:00    41    20     19   245  (WSW)   1764   cloudy     none
     00:00    41    19     17   262    (W)   4117   cloudy     dust
     01:00    41    20     24   264    (W)   7374   cloudy     dust
     02:00    39    21     26   257  (WSW)   6299   cloudy     dust
     03:00    38    21     26   262    (W)   4400   cloudy     none
     04:00    35    20     27   269    (W)   8131   cloudy     dust
     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