Subject: 3.5m Night Log 20250621
From: cgray@apo.nmsu.edu
Date: Sun, 22 Jun 2025 11:33:03 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Saturday, June 21, 2025
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
WY01  M.Moe             M.Moe and REU
OU03  G.Jewett          G.Jewett
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
WY01  eyepiece       21:00   22:00
OU03  arctic         --:--   --:--
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
WY01/O      20:24  01:10   3.8   0    0    0   1.0  0.0   0    0
OU03/R      01:10  05:47   1.8  2.8   0    0    0    0    0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: C.Gray
An exciting night to be sure! The night started with storms around us, but not on top of us. I didn't think we'd be able to open but then it cleared! We were able to get an hour on the eyepiece before two systems collided, the clouds formed all around us, and the dust shot up. Things did not improve. Clouds increased, there was rain, then 35 mph winds, and the dust just never settled. I called it at 5:00
                    ------- 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
--------------------------------------------------------------------------
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    77    32     19   234   (SW)   4648  ptly cldy   none
     17:00    75    32     14   221   (SW)   3209  ptly cldy   none
     18:00    72    32     13   252  (WSW)   3084  ptly cldy   none
     19:00    73    32     14   207  (SSW)   2723    clear     none
     20:00    69    32     18   224   (SW)   2825    clear     none
     21:00    66    32     16   205  (SSW)   3054  ptly cldy   dust
     22:00    63    46     20   142   (SE)  11016   cloudy     dust
     23:00    61    33     25   137   (SE)   3007   cloudy     rain
     00:00    60    32     21   163  (SSE)   2722   cloudy     dust
     01:00    62    32     19   190    (S)   5727   cloudy   lt rain
     02:00    61    32     18   189    (S)   4693 mstly cldy lt rain
     03:00    59    31     19   191    (S)   5127 mstly clr    dust
     04:00    57    30     17   197  (SSW)   4070 mstly clr    dust
     05:00    56    30     11   185    (S)   4241 mstly clr    dust
     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.
              ----------  TELESCOPE SOFTWARE  ----------
Current TCC version: 1.4.2
Current HUB version: v20171231_01
Current TUI version: 3.1.8