Subject: 3.5m Night Log 20201030
From: mcmillan@apo.nmsu.edu
Date: Sat, 31 Oct 2020 12:51:11 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Friday, October 30, 2020
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
NM04  E.Nielsen         E.Nielsen,B.Roberson
UW11  B.Morris          B.Morris,S.Hawley
                         ACTUAL
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
NM04  ECHELLE        18:30   01:09
UW11  ECHELLE        01:10   06:20
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
NM04/R      18:22  01:10    0    0    0    0   0.0  6.8   0    0
UW11/R      01:10  07:12    0    0    0    0   0.0  6.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: R.McMillan
We had high thin clouds all night, enough to cause occasional difficulty guiding on faint target but not enough to stop observing.  Everything worked well.
                    ------- 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
--------------------------------------------------------------------------
 18:38 ecamera    550(  -73)  26  72   8.4 11.3 10.2 11.7  9.3   ND1  0.77
 01:14 ecamera    461( -372) -45  49   6.4  6.6  7.2  6.3  6.3   Clear  1.28
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    54    21     10   225   (SW)    334    clear     none
     17:00    52    21      9   205  (SSW)    297 mstly clr    none
     18:00    47    15      2   203  (SSW)    210 mstly clr    none
     19:00    47    13      3   248  (WSW)    526  ptly cldy   none
     20:00    49    16      4   222   (SW)    472  ptly cldy   none
     21:00    48    17      8   234   (SW)    652  ptly cldy   none
     22:00    48    15     11   229   (SW)    565 mstly clr    none
     23:00    48    15      9   238  (WSW)    565 mstly clr    none
     00:00    47    14     12   228   (SW)    695 mstly clr    none
     01:00    43    19      8   217   (SW)    534  ptly cldy   none
     02:00    44    18      8   250  (WSW)    640  ptly cldy   none
     03:00    44    18     10   261    (W)    733  ptly cldy   none
     04:00    45    14     14   278    (W)    589  ptly cldy   none
     05:00    45    14     18   285  (WNW)    569 mstly clr    none
     06:00    45    18     13   277    (W)    689  ptly cldy   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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