Subject: 3.5m Night Log 20220910
From: dembicky@apo.nmsu.edu
Date: Sun, 11 Sep 2022 10:37:59 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Saturday, September 10, 2022
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
CU04  A.Kowalski        A.Kowalski
AP01  S.Merkowitz       R.McMillan
CU02  Kowalski/Roberts  A.Lin
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
CU04  ARCTIC         19:24   01:05
AP01  APOLLO         --:--   --:--
CU02  ARCTIC         --:--   --:--
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
CU04/R      19:24  01:10    0    0    0    0   0.4  5.4   0    0
AP01/R      01:10  02:10    0   1.0   0    0   0.0  0.0   0    0
CU02/R      02:10  06:36    0   4.4   0    0   0.0  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: J.Dembicky
We closed at 01:16 due to humidity, clouds, and very poor seeing. APOLLO was not going to get anything useful under these conditions and it wasn't worth staying open with the weather we were seeing popping up nearby.
We gave up at 04:30 as we had high humidity, cloudy skies, and the threat of nearby precipitation.
                    ------- 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
--------------------------------------------------------------------------
 20:17 arctic   444( 1161) 334  49  13.7 14.0 14.7 13.7 13.6   3500  1.28
 20:18 NA2gdr -1328(36671) 334  49  13.6 14.0 14.7 13.7 13.6   R  1.25
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    64    31      8    88    (E)   1363 mstly clr    none
     17:00    63    31     14   127   (SE)   1120 mstly clr    none
     18:00    61    31     17   111  (ESE)   1159 mstly clr    none
     19:00    59    31     15   113  (ESE)   1144 mstly clr    none
     20:00    57    30     16    83    (E)   1063  ptly cldy   none
     21:00    56    30     15    88    (E)   1252  ptly cldy   none
     22:00    56    32     18    86    (E)   1377 mstly clr    none
     23:00    55    32     17    80    (E)   1535 mstly clr    none
     00:00    52    31     24    75  (ENE)   1595  ptly cldy  humid
     01:00    51    31     17    81    (E)        mstly clr   humid
     02:00    50    31     12    86    (E)        mstly clr   humid
     03:00    50    30     18    80    (E)        mstly clr   humid
     04:00    49    30     15    74  (ENE)        mstly cldy  humid
     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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