Subject: 3.5m Night Log 20240601
From: ajt@apo.nmsu.edu
Date: Sun,  2 Jun 2024 12:48:21 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Saturday, June 01, 2024
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
CU01  A.Feinstein       A.Feinstein
NM09  A.Smith           E.Nielsen,A.Peck
AP01  S.Merkowitz       R.McMillan,B.Ketzeback
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
CU01  ECHELLE        20:33   01:09
NM09  ECHELLE        01:09   04:47
AP01  APOLLO         04:52   05:47
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
CU01/R      20:16  01:10    0    0    0    0   4.9  0.0   0    0
NM09/R      01:10  04:47    0    0    0    0   1.8  1.8   0    0
AP01/W      04:47  05:47    0    0    0    0   0.0  1.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: A.Townsend
There was a nearby storm just east of us that cleared up around sunset. The weather was otherwise fine, with a few thin clouds at the start and end of the night. Pollen counts were low.
APOLLO didn't overheat tonight and we were able to get three reflectors!
No telescope or instrument problems.
First echelle focus at high airmass.
                    ------- 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
--------------------------------------------------------------------------
 20:02 ecamera    361(  578) 195  24  14.9 18.9 18.6 19.1 16.8   Clear  3.50
 00:13 ecamera    330(  300) 255  82  15.6 14.4 15.2 14.2 14.5   ND2  1.24
 03:57 APOLLO     400( 2094)  84  39  12.6 12.7 13.4 12.5 12.5   530  2.25
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    68    30      7   200  (SSW)   2470  ptly cldy   none
     17:00    75    31     18   245  (WSW)   2505  ptly cldy   none
     18:00    72    29     16   239  (WSW)   2346  ptly cldy   none
     19:00    68    39     14   209  (SSW)   3444  ptly cldy   none
     20:00    64    35     11   186    (S)   2797 mstly clr    none
     21:00    59    39     14   138   (SE)   2905    clear     none
     22:00    59    36      8   147  (SSE)   2738    clear     none
     23:00    60    28      3   166  (SSE)   2454    clear     none
     00:00    62    22     11   218   (SW)   1919    clear     none
     01:00    61    22      9   212  (SSW)   2021    clear     none
     02:00    59    32     12   183    (S)   2527    clear     none
     03:00    58    34     14   181    (S)   2569    clear     none
     04:00    56    37     11   180    (S)   2577 mstly clr    none
     05:00    55    39     14   150  (SSE)   2556 mstly clr    none
     06:00    55    35      7   171    (S)   2545 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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