Subject: 3.5m Night Log 20220726
From: cgray@apo.nmsu.edu
Date: Wed, 27 Jul 2022 10:20:40 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Tuesday, July 26, 2022
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
GS01  D.Michael         M.Crenshaw and class
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
GS01  KOSMOS         20:15   04:03
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
GS01/R      20:15  06:05   0.9  1.1   0    0   7.8  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: C.Gray & A.Townsend
nicfps failed to take exposures during checkout and needed a "nicfps expose init"
SOMEHOW the storm clouds and rain cleared for sunset and we were able to open on time!! The sky stayed mostly clear with great seeing until we attempted to use the eyepiece on Saturn and then...clouds. We ended up being cloudy the rest of the night and, since we were looking at faint objects that needed long integrations, we gave up at 4:00.
                    ------- 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
--------------------------------------------------------------------------
 20:44 khigh   266( 1287) 269  64  16.2 17.5 17.4 17.1 16.9   --  1.11
 00:53 ecamera    315(  147) -12  35  14.7 14.2 14.7 13.9 14.4   ND3  0.84
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    75    50     15   232   (SW)    985   cloudy     rain
     17:00    71    47     17   255  (WSW)    848   cloudy     rain
     18:00    61    49     21   151  (SSE)   1259 mstly cldy lt rain
     19:00    61    48     10   181    (S)   1463  ptly cldy   none
     20:00    61    47      9   181    (S)   1334 mstly clr    none
     21:00    61    46     11   181    (S)   1364    clear     none
     22:00    60    47      9   164  (SSE)   1393    clear     none
     23:00    58    48      8   172    (S)   1197    clear     none
     00:00    57    49      7   184    (S)   1429    clear     none
     01:00    60    48      5   189    (S)   1316    clear     none
     02:00    58    47      4   188    (S)   1129 mstly cldy   none
     03:00    58    48      6    92    (E)   1121   cloudy     none
     04:00    59    44      0   189    (S)    922   cloudy     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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