Subject: 3.5m Night Log 20220912
From: dembicky@apo.nmsu.edu
Date: Tue, 13 Sep 2022 12:49:42 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Monday, September 12, 2022
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
LA01  D.Thompson        D.Thompson, M.Hoffmann, R.Hill
UW07  B.Morris          S.Hawley, L.Hebb
LA01  D.Thompson        D.Thompson, M.Hoffmann, R.Hill
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
LA01  HSAR           21:22   22:02
UW07  ECHELLE        22:13   02:34
UW07  ECHELLE        03:15   03:47
LA01  HSAR           03:47   06:33
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
LA01/O      19:22  22:07   1.4  0.6   0    0   0.0  0.7   0    0
UW07/R      22:07  03:52    0   0.7   0    0   0.0  5.1   0    0
LA01/O      03:52  06:37    0    0    0    0   0.0  2.8   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: J.Dembicky
We were closed due to clouds at the start of the night with radar returns to our west.  We finally opened at 21:22.  Humidity went over the closure limit at 02:34 and dropped enough we were able to re-open at 03:15.  A couple radar returns skirted us just to our South at the end of the night.  I kept a careful eye on them as we stayed open for the LANL folks.
                    ------- 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
--------------------------------------------------------------------------
 22:19 ecamera    270(  -85) 211  52  13.5 14.6 14.7 14.3 13.5   ND2  0.74
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    60    30     10   236   (SW)    990 mstly cldy   none
     17:00    61    30     11   257  (WSW)    873  ptly cldy   none
     18:00    63    31      6   266    (W)    836  ptly cldy   none
     19:00    57    30      4   304   (NW)    965   cloudy   lt rain
     20:00    54    30      2   181    (S)   1403 mstly cldy   none
     21:00    55    32      1   215   (SW)   1227  ptly cldy   none
     22:00    56    32      1   223   (SW)   1180 mstly clr    none
     23:00    56    31      3   189    (S)   1037 mstly clr    none
     00:00    54    31      1   156  (SSE)   1069  ptly cldy   none
     01:00    55    30     11   220   (SW)    794  ptly cldy   none
     02:00    53    31      7   222   (SW)    943 mstly clr   humid
     03:00    51    30      6   325   (NW)        mstly clr   humid
     04:00    51    30      9   323   (NW)    486  ptly cldy   none
     05:00    52    31      7   318   (NW)    443  ptly cldy   none
     06:00    51    32      8   337  (NNW)    478  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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