Subject: 3.5m Night Log 20250430
From: tsutherland@apo.nmsu.edu
Date: Thu,  1 May 2025 12:24:24 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Wednesday, April 30, 2025
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
AP01  S.Merkowitz       R.McMillan,T.Sutherland,B.Ketzeback,N.Colmenares,E.Hoffman,T.Oldham
BY03  M.Joner           M.Joner,D.Watts
JH04  M.Karmen          M.Karmen
CU02  K.McGouldrick     K.McGouldrick
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
AP01  APOLLO         19:53   20:53
BY03  KOSMOS         20:57   01:09
JH04  KOSMOS         01:11   02:47
CU02  TripleSpec     04:05   06:07
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
AP01/R      19:53  20:53    0    0    0    0   0.0  1.0   0    0
BY03/R      20:53  01:10    0    0    0    0   1.4  2.9   0    0
JH04/R      01:10  04:07    0    0    0    0   2.9  0.0   0    0
CU02/R      04:07  06:07    0    0    0    0   2.0  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: T.Sutherland
Opened around 6pm to start venting.
Apollo didn't go particularly smoothly, but the rest of the night was nice and quiet, if not a tad cloudy at times.
JH04 finished 10 minutes early, so CU02 got started early.
                    ------- 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
--------------------------------------------------------------------------
 20:07 APOLLO     375( 1921) 256  36   8.8  9.5  9.0  8.8  8.6   --  1.00
 21:14 khigh   380( 1083) 302  56   8.7  8.5  8.8  8.4  8.6   --  0.70
 01:23 kosmos   355(  995) -106  71   7.9  7.3  7.8  7.4  7.5   --  0.85
 04:13 tcamera    359( 1213)  81  60   7.5  6.5  7.1  6.4  6.7   --  0.86
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    52    12     11   273    (W)    736    clear     none
     17:00    52    12     19   266    (W)    812    clear     none
     18:00    54     9     13   259    (W)    835    clear     none
     19:00    51     9     16   274    (W)    934    clear     none
     20:00    48     9     13   273    (W)    926    clear     none
     21:00    48    11     11   239  (WSW)   1106    clear     none
     22:00    47     9     16   245  (WSW)   1478    clear     none
     23:00    46     7     14   231   (SW)   1410    clear     none
     00:00    46     8     14   251  (WSW)   1064  ptly cldy   none
     01:00    46     8     13   267    (W)    971 mstly cldy   none
     02:00    46    10     12   257  (WSW)    961  ptly cldy   none
     03:00    45    11      9   263    (W)   1013  ptly cldy   none
     04:00    46    11      6   312   (NW)    954 mstly cldy   none
     05:00    46    11      6     4    (N)   1007 mstly clr    none
     06:00    46    11      7     0    (N)    829 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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