Subject: 3.5m Night Log 20241225
From: cgray@apo.nmsu.edu
Date: Thu, 26 Dec 2024 14:40:08 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Wednesday, December 25, 2024
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
NM08  D.Bizyaev         D.Bizyaev
AP01  S.Merkowitz       R.McMillan,B.Ketzeback
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
NM08  KOSMOS         21:45   05:47
AP01  APOLLO         05:54   06:55
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
NM08/R      17:13  05:55   4.5   0    0    0   5.4  2.8   0    0
AP01/R      05:55  06:55    0    0    0    0   0.0  1.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: C.Gray,A.Townsend
Clouds at the start of the night, with mediocre seeing once things cleared up. Echelle slitviewer chiller was making noises so it's been temporarily turned off.
                    ------- 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
--------------------------------------------------------------------------
 21:59 kosmos   324(  635) 159  68  -0.1  0.3  1.2  0.4 -0.2   --  2.32
 06:00 APOLLO     274( 1308)  23  43  -0.9 -1.2 -1.1 -1.6 -1.4   530  1.70
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    40    18     23   249  (WSW)   1845  ptly cldy   none
     17:00    37    18     31   261    (W)   4138  ptly cldy   none
     18:00    36    18     26   265    (W)   4163 mstly cldy   none
     19:00    36    18     19   263    (W)   1569   cloudy     none
     20:00    35    20     17   274    (W)   1293   cloudy     none
     21:00    34    20     22   293  (WNW)    885   cloudy     none
     22:00    32    19     12   356    (N)    951   cloudy     none
     23:00    30    16      6     1    (N)    696 mstly cldy   none
     00:00    29    16     14    15  (NNE)    652 mstly clr    none
     01:00    28    15     17   359    (N)    462    clear     none
     02:00    27    14     12    14  (NNE)    419    clear     none
     03:00    28    11     19     9    (N)    344    clear     none
     04:00    30    11     17     8    (N)    296    clear     none
     05:00    31     7     18   345  (NNW)    217    clear     none
     06:00    30    12     14    17  (NNE)    279    clear     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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