Subject: 3.5m Night Log 20231002
From: cgray@apo.nmsu.edu
Date: Tue,  3 Oct 2023 13:39:56 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Monday, October 02, 2023
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
NM12  W.Roberson        E.Nielsen, A.Peck
NM03  C.Gray            C.Gray
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
NM12  ECHELLE        03:30   03:52
NM03  ECHELLE        03:32   06:52
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
NM12/R      18:55  03:50  2.0  6.5   0    0   0.0  0.4   0    0
NM03/O      03:50  06:50    0   0    0    0   0.0  3.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: C.Gray
It was a dark and stormy night…and then it just kinda stayed cloudy. We had a really
good rain storm around sunset and then it rained off and on for a couple hours.
After that, we had persistent low clouds that would dip down into fog level. That
FINALLY cleared up around 3:30am and we were able to get on sky with amazing seeing!
No problems tonight.
                    ------- 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
--------------------------------------------------------------------------
 03:33 ecamera    303(  101)  -5  80  10.1 10.8 11.2 10.8 10.2   clear  0.72
 03:56 ecamera    353(  183)  85  14   9.8 10.4 10.9 10.3 10.0   ND2  1.23
 05:23 ecamera    340(  103)  72  31   9.4  9.4 10.0  9.2  9.4   ND3  1.18
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    62    39     28   206  (SSW)    682 mstly cldy   none
     17:00    62    40     28   216   (SW)   1077 mstly cldy   none
     18:00    58    34     25   215   (SW)    916 mstly cldy   none
     19:00    58    38     12   260    (W)   6191   cloudy     rain
     20:00    52    40     10   267    (W)    948   cloudy   lt rain
     21:00    52    43     12   230   (SW)   1597   cloudy   lt rain
     22:00    54    42     21   220   (SW)   1869   cloudy   lt rain
     23:00    53    43     17   241  (WSW)   1663   cloudy     none
     00:00    52    43     16   229   (SW)   1693   cloudy     none
     01:00    51    44     13   257  (WSW)   1561 mstly cldy   none
     02:00    51    44     14   256  (WSW)   1738 mstly cldy   none
     03:00    50    43     11   262    (W)   1574  ptly cldy   none
     04:00    50    39     13   262    (W)   1126 mstly clr    none
     05:00    50    35     24   235   (SW)    796 mstly clr    none
     06:00    48    37     19   251  (WSW)   1051 mstly clr    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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