Subject: 3.5m Night Log 20200826
From: trudyk@apo.nmsu.edu
Date: Thu, 27 Aug 2020 12:21:15 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Wednesday, August 26, 2020
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
AP01  T.Murphy          R.McMillan
NM05  J.Jackiewicz      A.Hedlund
UW03  Y.Notsu           Y.Notsu
                         ACTUAL
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
AP01  APOLLO         19:43   20:37
NM05  ECHELLE        20:41   01:14
UW03  ECHELLE        01:14   06:00
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
AP01/R      19:43  20:43    0    0    0    0   0.0  1.0   0    0
NM05/R      20:43  01:10    0    0    0    0   0.0  4.5   0    0
UW03/R      01:10  06:27    0    0    0    0   5.2  0.1   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: T.Rudyk
Evening started partly cloudy, then cleared out around sunset. Winds were low. Seeing was fair at sunset, improved by 21:00. It was less smoky then past nights. It stayed mostly clear with decent seeing 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
--------------------------------------------------------------------------
 19:39 APOLLO     500( 2083)   4  41  18.2 20.2 20.1 20.0 18.5   530  2.00
 20:43 ecamera    459(  169) -34  61  17.2 18.3 18.6 17.8 17.2   clear  0.92
 21:39 ecamera    353(  268) 136  73  16.7 17.3 17.8 16.9 16.6   clear  0.88
 23:58 ecamera    377(  -43) 250  66  15.4 15.6 16.2 15.3 15.2   clear  1.01
 01:18 ecamera    371(  -68) 248  52  15.0 15.0 15.6 14.7 14.8   clear  1.28
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    72    31      7   255  (WSW)    681  ptly cldy   none
     17:00    70    31      4   244  (WSW)    656  ptly cldy   none
     18:00    71    30     13   243  (WSW)    698  ptly cldy   none
     19:00    67    30     13   205  (SSW)    631 mstly clr    none
     20:00    63    30      8   175    (S)    670    clear     none
     21:00    63    30     11   133   (SE)    639    clear     none
     22:00    62    30     13   139   (SE)    701    clear     none
     23:00    61    30     15   133   (SE)    653    clear     none
     00:00    60    30      9   121  (ESE)    670    clear     none
     01:00    59    30      6   128   (SE)    655    clear     none
     02:00    59    30     10   139   (SE)    802    clear     none
     03:00    62    31      6   197  (SSW)    593    clear     none
     04:00    61    30      5   195  (SSW)    484    clear     none
     05:00    60    30      7   196  (SSW)    558    clear     none
     06:00    60    30      6   184    (S)    567    clear     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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