Subject: 3.5m Night Log 20240727
From: ajt@apo.nmsu.edu
Date: Sun, 28 Jul 2024 12:20:38 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Saturday, July 27, 2024
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
NA01  J.Bary            J.Bary,B.Horner,F.PerezPaolino
JH02  S.Li              S.Li
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
NA01  TSPEC          20:14   00:57
JH02  ECHELLE        01:01   05:50
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
NA01/R      20:14  01:10    0    0    0    0   3.9  1.0   0    0
JH02/R      01:10  06:06    0    0    0    0   0.0  4.9   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: A.Townsend
We had a few annoying clouds but otherwise a pretty peaceful night. The dust counts finally seem to have gone down to normal amounts, no more smoke!
Echelle focused 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
--------------------------------------------------------------------------
 19:24 tcamera    408( 1992)  11  32  18.6 21.5 21.0 21.3 19.4   Ks  1.24
 00:15 ecamera    338(  435) 178  18  16.2 16.2 16.8 15.9 15.9   ND1  2.38
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    71    45      6   260    (W)   1266  ptly cldy   none
     17:00    70    45     12   143   (SE)   1126  ptly cldy   none
     18:00    73    44      5   258  (WSW)    833 mstly cldy   none
     19:00    68    45     11   136   (SE)   1617  ptly cldy   none
     20:00    66    44      7   187    (S)   1567 mstly clr    none
     21:00    65    44      8   180    (S)   1766  ptly cldy   none
     22:00    64    43     14   159  (SSE)   1815 mstly clr    none
     23:00    64    43     16   165  (SSE)   1847    clear     none
     00:00    62    43     15   157  (SSE)   1851    clear     none
     01:00    61    42     10   139   (SE)   2738    clear     none
     02:00    64    47      5   256  (WSW)   1582 mstly clr    none
     03:00    64    47      7   264    (W)   1174 mstly clr    none
     04:00    64    47      7   269    (W)   1267 mstly clr    none
     05:00    64    47      5   263    (W)   1186 mstly clr    none
     06:00    63    47      5   296  (WNW)   1198 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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