Subject: 3.5m Night Log 20230917
From: cgray@apo.nmsu.edu
Date: Mon, 18 Sep 2023 13:02:55 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Sunday, September 17, 2023
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
JH01  M.Guolo           M.Guolo
UW05  K.Suberlak        K.Suberlak
NM01  C.Gray            C.Gray
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
JH01  KOSMOS         --:--   --:--
UW05  KOSMOS         --:--   --:--
NM01  ECHELLE        05:16   06:40
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
JH01/R      19:15  01:10   4.6  1.4   0    0    0    0    0    0
UW05/R      01:10  05:16   4.1   0    0    0   0.0  0.0   0    0
NM01/O/D    05:16  06:40    0    0    0    0   1.4  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: C.Gray
The night started out with clouds and rain all around us, but I don’t think it ever
fell. We then had high humidity. UW05 needed at least 2 hours on a target starting
by 2:30am, which did not happen. I held on hoping that the clouds would clear a
little before dawn and they did! I was able to get some time for NM01 as a drop in.
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
--------------------------------------------------------------------------
 05:19 ecamera    348(  229)  33  59  11.3 11.6 11.9 11.7 11.4   ND3  0.77
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    65    47      8   233   (SW)    703 mstly cldy   none
     17:00    60    45      6   291  (WNW)    649 mstly cldy   none
     18:00    59    47      6   259    (W)    710   cloudy     none
     19:00    57    48      5   259    (W)    777   cloudy     none
     20:00    56    47      2   180    (S)    785   cloudy     none
     21:00    55    46      7   184    (S)    778   cloudy     none
     22:00    55    46      8   185    (S)    721   cloudy     none
     23:00    53    46      3   199  (SSW)    704   cloudy    humid
     00:00    53    46      1   238  (WSW)    732   cloudy    humid
     01:00    51    49      6   188    (S)          cloudy    humid
     02:00    52    46     10   184    (S)          cloudy    humid
     03:00    53    46     14   206  (SSW)    638  ptly cldy  humid
     04:00    53    45      9   206  (SSW)    549  ptly cldy   none
     05:00    52    47      8   203  (SSW)    682 mstly clr    none
     06:00    51    46      7   186    (S)    657 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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