Subject: 3.5m Night Log 20190731
From: cgray@apo.nmsu.edu
Date: Thu,  1 Aug 2019 12:27:54 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Wednesday, July 31, 2019
                                                           ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
--------------------------------------------------------------------
H.Hwang           H.Hwang               DIS            23:43   01:02
D.Chojnowski      D.Chojnowski          ECHELLE        01:11   03:38
C.Sakari          C.Sakari              DIS            03:44   05:30
   INST       SCHEDULED     WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B    D    B
 ----------------------------------------------------------------
JH01/R     20:11   01:10   3.5   0    0    0   1.5  0.0   0    0
NM02/R     01:10   03:40    0    0    0    0   2.5  0.0   0    0
UW08/R     03:40   06:08    0    0    0    0   2.5  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: C.Gray
The night started with virga and gray clouds which became worse after sunset. We had a little bit of rain around 10pm and things finally started clearing at midnight and it was safe to open. A haze rolled in a couple hours later and seeing was poor all night.
No problems tonight.
                    ------- 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
--------------------------------------------------------------------------
 00:16 ecamera    218(  -89) 195  82  15.3 16.0 16.6 15.9 15.4   ND3  1.40
 02:18 ecamera    280(  -72) 161  63  15.1 14.9 15.4 14.8 14.9   ND1  1.48
 02:48 dcamera    348(  833) 119  74  14.8 14.7 15.3 14.6 14.6   --  1.43
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    70    41      3   255  (WSW)    716 mstly cldy   none
     17:00    73    40      5   200  (SSW)    578 mstly cldy   none
     18:00    70    41     12   187    (S)    637 mstly cldy   none
     19:00    70    41      2   209  (SSW)    694 mstly cldy   none
     20:00    67    39      9   155  (SSE)    772  ptly cldy   none
     21:00    63    45     19   118  (ESE)    967  ptly cldy   none
     22:00    62    45     14   126   (SE)    961 mstly cldy lt rain
     23:00    62    43     14   129   (SE)   1453  ptly cldy   none
     00:00    62    41     18   148  (SSE)   2047    clear     none
     01:00    60    41     13   145   (SE)   2470 mstly clr    none
     02:00    60    42     21   128   (SE)   2731 mstly clr    none
     03:00    59    41     19   150  (SSE)   2367 mstly clr    none
     04:00    60    46     12   185    (S)    993 mstly clr    none
     05:00    59    47      7   183    (S)    949 mstly clr    none
     06:00    58    48      2   196  (SSW)    410 mstly clr    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: 1.2.4
    Current TUI version: 2.6.0