Subject: 3.5m Night Log 20240213
From: ajt@apo.nmsu.edu
Date: Wed, 14 Feb 2024 13:18:55 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Tuesday, February 13, 2024
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
WY02  M.Moe             M.Moe,N.Patten
CU05  B.Oppenheimer     M.Croom
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
WY02  KOSMOS         18:36   23:51
CU05  KOSMOS         23:53   05:42
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
WY02/R      17:55  00:10    0    0    0    0   1.7  4.5   0    0
CU05/R      00:10  06:39    0    0    0    0   6.5  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: A.Townsend
Clear night with sub arcsecond seeing. Wind speeds were low enough that I wasn't worried about the small amount of snow left on the roof for the first half of the night, they got a little higher during B-half but we were pointed more or less directly into the wind so we stayed open.
Dome is parked at -45 az for sun exposure.
                    ------- 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
--------------------------------------------------------------------------
 18:50 kosmos   300(  823) -53  55   1.4  3.6  3.6  4.7  1.8   --  0.95
 00:03 klow   360(  717) -172  47   1.0  0.0  0.7  0.1  0.6   --  0.76
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    43    11     11   218   (SW)    528    clear     none
     17:00    38    11      6   215   (SW)    555    clear     none
     18:00    34     6      7   200  (SSW)    555    clear     none
     19:00    35     3      8   192  (SSW)    626    clear     none
     20:00    34     5     11   181    (S)    641    clear     none
     21:00    33     8     11   187    (S)    740    clear     none
     22:00    33     7     12   186    (S)    757    clear     none
     23:00    33     5     13   242  (WSW)    835    clear     none
     00:00    34     5     15   264    (W)    710    clear     none
     01:00    33     6     15   256  (WSW)    757    clear     none
     02:00    33     9     17   263    (W)    802    clear     none
     03:00    33    11     19   267    (W)    672    clear     none
     04:00    33    12     15   266    (W)    683    clear     none
     05:00    32    12     14   263    (W)    709    clear     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: 3.1.3