Subject: 3.5m Night Log 20200703
From: trudyk@apo.nmsu.edu
Date: Sat,  4 Jul 2020 11:10:05 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Friday, July 03, 2020
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
UW04  G.Wallerstein     I.Farrel
NM08  K.Pan             K.Pan
                         ACTUAL
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
UW04  DIS            23:00   01:05
NM08  ECHELLE        01:08   05:00
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
UW04/R      20:24  01:10    0    2.7  0    0   0.0  2.1   0    0
NM08/R      01:10  05:52    0    0    0    0   0.4  4.2   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: T.Rudyk
During checkout, DIS presented with noisy biases on the red camera. This was due to the high daytime temperatures (camera was running >200K). Observer did not have a backup instrument, so louvers were opened, int fans run in hopes of cooling camera in time for night. There were showers in the area so we did not open right away at sunset. by 20:45 DIS had cooled enough biases were back to normal. Radar cleared enough such that we opened at 23:00. Unfortuntely, the minute we opened orographics clouds formed over the site. They passed after an hour. Seeing improved markedly after 01:00. We were able to be open the rest of the 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
--------------------------------------------------------------------------
 23:14 dcamera    189(  845)  57  41  16.7 18.5 19.0 18.3 16.8   -  1.94
 00:24 dcamera    375( 1003)  -3  22  16.4 17.5 17.9 17.2 17.1   -  2.43
 01:15 ecamera    434(   76) 206  57  16.3 16.8 17.4 16.6 16.2   clear  0.92
           ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    76    37      6   257  (WSW)   1087 mstly clr    none
     17:00    75    39      8   257  (WSW)   1132 mstly clr    none
     18:00    78    37      8   222   (SW)   1049  ptly cldy   none
     19:00    76    36      6   226   (SW)    957  ptly cldy   none
     20:00    67    36     13   136   (SE)   1942 mstly clr    none
     21:00    63    32     12    86    (E)   2453 mstly clr    none
     22:00    63    30      9   104  (ESE)   2422  ptly cldy   none
     23:00    61    30     14   114  (ESE)   1874 mstly cldy   none
     00:00    63    31      8   169    (S)   1995 mstly clr    none
     01:00    62    30      9   188    (S)   1849 mstly clr    none
     02:00    60    31      9   183    (S)   1691 mstly clr    none
     03:00    61    29     14   182    (S)   1736 mstly clr    none
     04:00    61    30     10   183    (S)   1732 mstly clr    none
     05:00    60    31     12   184    (S)   1729 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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