Subject: 3.5m Night Log 20191207
From: decolib@apo.nmsu.edu
Date: Sun,  8 Dec 2019 12:43:45 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Saturday, December 07, 2019
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
UW09  C.Sakari          C.Sakari
UW10  Y.Notsu           Y.Notsu
                         ACTUAL
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
UW09  ECHELLE        17:06   23:58
UW10  ECHELLE        23:58   02:40
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
UW09/R      17:06  00:10    0    0    0    0   0.0  7.1   0    0
UW10/R      00:10  06:44   3.4  0.7   0    0   0.0  2.5   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: D.DeColibus
Some light cirrus in the afternoon, slowly increasing in the evening as a large system over Arizona moved eastward. Thicker clouds arrived by 20:45, and most of the rest of the night was spent battling clouds.
MaximDL on ARCSAT hung around 00:15 and required a software restart, but not a full reboot. The same occurred around 00:50 and 01:15. Due to nearby precipitation on the radar and increasing cloud cover, we closed up around 02:40. We did not reopen, and the observer gave up around 05:00.
No other problems tonight.
                    ------- FAILURE LOG -------
              FAILURE MODE     TIME
PROG   INSTR     TI/SHU    START  FINISH  DESCRIPTION
----------------------------------------------------------------------
            ---------------- FOCUS LOG ---------------
Time  Instrument  Focus     Az  El  Temp Strc Prim  Sec  Air  filt  FWHM
--------------------------------------------------------------------------
 17:28 ecamera    362( -496)  -6  73   5.0  6.3  6.4  5.8  5.2   ND2  0.66
 19:09 ecamera    401( -506)  -5  75   5.4  5.3  5.8  5.2  5.2   Clear  0.75
 00:03 ecamera    425( -518)  60  43   4.1  4.1  4.7  4.1  4.2   Clear  1.24
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    44    32     11   305   (NW)    277    clear     none
     17:00    41    32     12   313   (NW)    233    clear     none
     18:00    42    25     15   301  (WNW)    195 mstly clr    none
     19:00    42    22     16   308   (NW)    150 mstly clr    none
     20:00    40    32     12   302  (WNW)    255  ptly cldy   none
     21:00    41    33     16   266    (W)    284 mstly cldy   none
     22:00    41    30     15   269    (W)    264  ptly cldy   none
     23:00    41    32     17   265    (W)    363  ptly cldy   none
     00:00    39    33     16   265    (W)    313 mstly cldy   none
     01:00    40    33     18   264    (W)    261 mstly cldy   none
     02:00    40    33     17   282  (WNW)    226 mstly cldy   none
     03:00    40    33     21   288  (WNW)    209   cloudy   lt rain
     04:00    40    33     18   281    (W)    248   cloudy   lt rain
     05:00    39    33     14   296  (WNW)    242   cloudy     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.
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