Subject: 3.5m Night Log 20230319
From: ajt@apo.nmsu.edu
Date: Mon, 20 Mar 2023 11:40:54 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Sunday, March 19, 2023
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
UW05  K.Suberlak        K.Suberlak
UV02  K.Corcoran        K.Corcoran
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
UW05  KOSMOS         19:51   00:45
UV02  AGILE          --:--   --:--
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
UW05/R      19:22  01:10   0.4   0    0    0   5.4  0.0   0    0
UV02/R      01:10  06:59   5.5  0.3   0    0   0.0  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: A.Townsend
Agile needed the heartbeat reset at checkout (and then was fine at changeover)
We started off the night with poor seeing that never improved and clouds that got a
little better and then much worse again. We had a lot of trouble trying to observe
faint targets!
We closed up at 00:45 due to increasing clouds and nearby radar. Snow flurries
starting a little after 01:00, which continued for a while. We gave up at 03:30 with
a lot of green still on the radar and not really enough time left for the program to
get science data.
I started the snow program at 03:30, and stopped it at 05:00. Dome is parked to the
south.
Temperature wobbled back and forth between -3 and -2 all night. Humidity went up
from 65% to 75% before midnight, over 90% (and foggy) not long after 01:00, and 97%
by the end of the night.
                    ------- 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
--------------------------------------------------------------------------
 19:13 kosmos   375(  341) -63  34  10.0 -1.2 -1.4 -1.8 -2.8   --  3.28
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00                 11   194  (SSW)   1022  ptly cldy   none
     17:00                 13   198  (SSW)   1021 mstly cldy   none
     18:00                 10   149  (SSE)    863 mstly cldy   none
     19:00                 20   143   (SE)    774  ptly cldy   none
     20:00                 16   130   (SE)    861 mstly clr    none
     21:00                  1   151  (SSE)    834 mstly clr    none
     22:00                  1   309   (NW)    822 mstly clr    none
     23:00                 11   232   (SW)   1022 mstly clr    none
     00:00                 10   218   (SW)   1008 mstly cldy   none
     01:00                  9   245  (WSW)          cloudy   lt snow
     02:00                 13   242  (WSW)          cloudy   lt snow
     03:00                 14   225   (SW)          cloudy     snow
     04:00                 13   190    (S)          cloudy     snow
     05:00                 16   222   (SW)          cloudy   lt snow
     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: 2.6.0