Subject: 3.5m Night Log 20230104
From: ajt@apo.nmsu.edu
Date: Thu,  5 Jan 2023 14:06:28 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Wednesday, January 04, 2023
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
CU04  A.Kowalski        A.Lin
NM09  A.Smith           A.Smith,J.Klusmeyer
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
CU04  ARCTIC         20:13   20:30
NM09  ECHELLE        --:--   --:--
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
CU04/R      17:19  00:10    0   6.6   0    0   0.0  0.3   0    0
NM09/R      00:10  06:58   0.6  6.2   0    0   0.0  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: A.Townsend
The snow on the dome was sadly still there at sunset so we operated under the wind + mirror temp restrictions and were not able to open for long.
Opened for a few minutes at 20:00 but had to close back up again due to rising humidity and winds again. When I closed up the altitude axis controller spontaneously restarted but I was able to get it back pretty quickly with talk2boxes.
Temperatures ranged from about 0C down to -5C; humidity from about 30% at sunset up to almost 90% and then back down to around 50% by the end of the night.
Dome is parked east to help with the snow still stuck on the NA1 side of the dome.
                    ------- 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
--------------------------------------------------------------------------
 20:25 arctic   310(  289)  15  78  37.3 -1.3 -1.8 -1.9 -2.6   SDSS_i  0.77
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00                 15   308   (NW)    362    clear     none
     17:00                 18   307   (NW)    177    clear     none
     18:00                 14   293  (WNW)    214    clear     none
     19:00                  7   280    (W)    412    clear     none
     20:00                  9   275    (W)           clear    humid
     21:00                 10   276    (W)           clear    humid
     22:00                 14   296  (WNW)           clear    humid
     23:00                 13   316   (NW)           clear    humid
     00:00                 14   289  (WNW)           clear     none
     01:00                 18   304   (NW)    257    clear     none
     02:00                 15   308   (NW)    218    clear     none
     03:00                 17   299  (WNW)    181    clear     none
     04:00                 14   293  (WNW)    199    clear     none
     05:00                 11   302  (WNW)    192    clear     none
     06:00                 13   320   (NW)    172 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.
              ----------  TELESCOPE SOFTWARE  ----------
Current TCC version: 1.4.2
Current HUB version: v20171231_01
Current TUI version: 2.6.0