Subject: 3.5m Night Log 20240406
From: ajt@apo.nmsu.edu
Date: Sun,  7 Apr 2024 12:51:59 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Saturday, April 06, 2024
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
NM01  A.Dijeau          A.Dijeau
UW02  P.Yoachim         J.Jiang
NM09  A.Smith           J.Klusmeyer,A.Peck
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
NM01  KOSMOS         19:54   01:19
UW02  KOSMOS         01:19   03:12
NM09  ECHELLE        03:16   06:30
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
NM01/R      19:36  01:10    0    0    0    0   5.6  0.0   0    0
UW02/R      01:10  03:20    0    0    0    0   2.2  0.0   0    0
NM09/R      03:20  06:34    0    0    0    0   2.7  0.5   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: A.Townsend
Mirror covers had to be reset at checkout.
UW02 was running a little late and donated the first 10 minutes of their observing time to NM01.
Photometric night with ok seeing after the wind and dust from the day calmed down.
                    ------- 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
--------------------------------------------------------------------------
 19:09 kosmos   200(  588) 120  59  -1.1  0.8  1.6  0.8 -0.2   --  2.01
 00:29 kosmos   430(  591) 349  56  -3.8 -4.1 -3.4 -4.0 -3.9   --  1.16
 02:24 ecamera    412( -490)  10  36  -4.4 -4.7 -4.0 -4.7 -4.4   ND2  1.34
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    33     5     20   287  (WNW)   2450    clear     dust
     17:00    35    -1     29   288  (WNW)   2949    clear     none
     18:00    35    -2      8   264    (W)   2671    clear     none
     19:00    33     0     21   291  (WNW)    795    clear     none
     20:00    30     2     28   279    (W)   1098    clear     none
     21:00    29     3     18   307   (NW)    980    clear     none
     22:00    27     6     16     3    (N)    478    clear     none
     23:00    27     6      2   255  (WSW)    372    clear     none
     00:00    26     5      7    54   (NE)    369    clear     none
     01:00    26    -1     15   346  (NNW)    430    clear     none
     02:00    25     0      4   352    (N)    434    clear     none
     03:00    24     0     20    10    (N)    392    clear     none
     04:00    24     1      8   356    (N)    405    clear     none
     05:00    25    -1     11     8    (N)    436    clear     none
     06:00    24     0     20     2    (N)    441    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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