Subject: 3.5m Night Log 20200702
From: trudyk@apo.nmsu.edu
Date: Fri,  3 Jul 2020 11:26:04 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Thursday, July 02, 2020
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
FG01  D.Buzasi          D.Buzasi
NM05  A.Hedlund         P.Gaulme
                         ACTUAL
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
FG01  ECHELLE        20:24   01:11
NM05  ECHELLE        01:11   05:15
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
FG01/R      20:24  01:10    0    0    0    0   0.0  4.8   0    0
NM05/R      01:10  05:51    0    0    0    0   1.3  3.4   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: T.Rudyk
No issues with NA2 during checkout. Evening started clear and rain-free enough that we could open at sunset. Skies were partly cloudy, winds were calm and seeing was decent. Clouds began to thicken around 23:45. It blew out and began to clear again around 00:30. Seeing improved after 01:00. We ended up being open all night.
                    ------- 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
--------------------------------------------------------------------------
 20:25 ecamera    501(  277)  51  65  17.6 19.8 19.7 19.4 18.3   ND4  0.91
 21:21 ecamera    517(  234) -37  42  17.6 18.2 18.6 17.8 17.8   ND2  0.93
 00:32 ecamera    455(  111) -31  31  16.2 16.6 17.2 16.5 16.6   ND1  1.33
 01:16 ecamera    461(   66) 136  83  16.2 16.3 16.8 16.2 16.2   clear  0.77
 03:52 ecamera    434(   20) 231  69  16.8 15.7 16.4 15.4 15.8   clear  0.77
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    69    36     11   226   (SW)   1701  ptly cldy   none
     17:00    69    34     14   216   (SW)   1420  ptly cldy   none
     18:00    72    36     14   229   (SW)   1089  ptly cldy   none
     19:00    69    32      8   259    (W)   1131  ptly cldy   none
     20:00    65    31     15   228   (SW)   1185  ptly cldy   none
     21:00    64    28      7   186    (S)   1134  ptly cldy   none
     22:00    63    30      7   183    (S)   1215  ptly cldy   none
     23:00    63    30      9   187    (S)   1395 mstly cldy   none
     00:00    62    28      8   188    (S)   2154 mstly clr    none
     01:00    61    30      5   179    (S)   2227 mstly clr    none
     02:00    62    29      1   207  (SSW)   2123 mstly clr    none
     03:00    63    30      5   270    (W)   2080 mstly clr    none
     04:00    62    29      3   252  (WSW)   2082 mstly clr    none
     05:00    61    28      3   245  (WSW)   1978 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.
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