Subject: 3.5m Night Log 20210926
From: mcmillan@apo.nmsu.edu
Date: Mon, 27 Sep 2021 11:49:20 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Sunday, September 26, 2021
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
WY03  C.Kobulnicky      E.Cook
FG01  D.Buzasi          D.Buzasi
                         ACTUAL
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
WY03  ECHELLE        --:--   --:--
FG01  ECHELLE        03:45   04:30
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
WY03/R      19:02  01:10   3.3  2.9   0    0   0.0  0.0   0    0
FG01/R      01:10  06:47    0   4.8   0    0   0.0  0.8   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: R.McMillan
Clouds and rain and radar and high humidity first half, with some improvement second half.  We opened long enough to get focused and get one good spectrum, then more clouds and more radar.
                    ------- 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
--------------------------------------------------------------------------
 03:55 ecamera    158( -229)  40  68   8.9  9.9 11.9  9.7  9.6   ND1  0.94
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    58    31      5   262    (W)    389  ptly cldy   none
     17:00    63    30      6   197  (SSW)    310  ptly cldy   none
     18:00    54    30      9   236   (SW)    394 mstly cldy   none
     19:00    49    27      7   355    (N)   4675 mstly cldy   none
     20:00    50    30     16   206  (SSW)          cloudy   lt rain
     21:00    48    32      8   319   (NW)          cloudy   lt rain
     22:00    47    32      5     2    (N)          cloudy   lt rain
     23:00    49    32      8   265    (W)    399   cloudy   lt rain
     00:00    50    31      9   237  (WSW)    417   cloudy     none
     01:00    49    31      8   248  (WSW)    538   cloudy     none
     02:00    49    31      6   213  (SSW)    583  ptly cldy   none
     03:00    48    31      6   193  (SSW)    810  ptly cldy   none
     04:00    48    31     14   214   (SW)    731 mstly cldy   none
     05:00    48    31     13   197  (SSW)    687 mstly 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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