Subject: 3.5m Night Log 20240315
From: ajt@apo.nmsu.edu
Date: Sat, 16 Mar 2024 12:52:06 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Friday, March 15, 2024
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
JH03  N.Oliveros-Gomez  C.Ingebretsen,N.Oliveros-Gomez
SU01  J.Hughes          J.Hughes
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
JH03  NICFPS         23:58   01:05
SU01  KOSMOS         --:--   --:--
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
JH03/R      19:20  01:10    0  4.7    0    0   0.0  1.1   0    0
SU01/R      01:10  07:03   5.3  0.6   0    0   0.0  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: A.Townsend
Humidity and nearby radar at the start of the night kept us closed. At 21:30 we got a few snow flurries that didn't last long. We were finally able to open a little before midnight, but we were only able to stay open for about an hour before humidity came back up. That was all we got for the night.
When we did open, seeing was atrocious.
                    ------- 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
--------------------------------------------------------------------------
 23:09 NICFPS     604( 1425) 219  48  -0.4  0.2  2.7  0.2 -0.2   MK_J  2.41
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    32    25     15    87    (E)    398 mstly clr    none
     17:00    33    24     11    89    (E)    284 mstly clr    none
     18:00    30    24     15    83    (E)        mstly clr   humid
     19:00    30    22     20   119  (ESE)    452  ptly cldy   none
     20:00    29    23     17   108  (ESE)        mstly cldy  humid
     21:00    27    24     18    88    (E)        mstly cldy lt snow
     22:00    30    24     22   113  (ESE)        mstly cldy  humid
     23:00    31    24     24   124   (SE)         ptly cldy   none
     00:00    31    26     25   126   (SE)    885 mstly clr    none
     01:00    29    27     20   117  (ESE)         ptly cldy  humid
     02:00    30    28     30   126   (SE)         ptly cldy  humid
     03:00    31    29     23   125   (SE)         ptly cldy   fog
     04:00    31    32     18   165  (SSE)        mstly cldy   fog
     05:00    32    32     11   187    (S)        mstly cldy   fog
     06:00    31    32     15   150  (SSE)        mstly cldy   fog
     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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