Subject: 3.5m Night Log 20240311
From: dembicky@apo.nmsu.edu
Date: Tue, 12 Mar 2024 12:45:18 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Monday, March 11, 2024
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
JH01  B.Menard          B.Menard, JHU class (remote)
OU03  K.Leighly         D.Terndrup
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
JH01  ARCTIC         19:55   23:55
OU03  KOSMOS         03:30   06:19
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
JH01/R      19:17  01:10   1.3  0.6   0    0   2.8  1.2   0    0
OU03/R      01:10  07:08   2.3   0    0    0   3.7  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: J.Dembicky
We had clouds during twilight.  We opened around 19:55 with a few stars peeking through the clouds but no threat of rain.  The first half gave up about an hour early due to thick clouds.
The sky was not usable at the start of 2nd half so they used the time to take cals.  The sky finally cleared enough at 03:30 that on sky observations could resume.
Other than some pesky clouds, no problems tonight.
                    ------- 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
--------------------------------------------------------------------------
 20:04 arctic   492( 1149) 208  66   4.4  5.5  5.1  5.5  4.6   SDSS_i  0.72
 20:06 arctic   492( 1149) 208  66   4.4  5.5  5.1  5.4  4.6   clear  1.03
 22:03 arctic   418( 1040) 167  51   5.3  4.5  5.0  4.8  4.9   SDSS_i  0.90
 00:37 kosmos   418(  978) 194  79   5.4  4.6  5.2  4.9  4.9   --  0.75
 03:40 kosmos   393(  924) 199  64   4.1  3.8  4.3  3.7  3.8   --  0.70
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    45    18     14   245  (WSW)   1602   cloudy     none
     17:00    43    20     13   207  (SSW)   1753   cloudy     none
     18:00    41    18     12   226   (SW)   2086   cloudy     none
     19:00    39    17     11   221   (SW)   2181  ptly cldy   none
     20:00    40    16     15   240  (WSW)   2018  ptly cldy   none
     21:00    40    13     13   244  (WSW)   1981  ptly cldy   none
     22:00    42     9     11   266    (W)   2461 mstly cldy   none
     23:00    41    10     11   264    (W)   2420 mstly cldy   none
     00:00    41    11     15   247  (WSW)   2458   cloudy     none
     01:00    42     9     13   262    (W)   2400 mstly cldy   none
     02:00    41     9     13   262    (W)   2439  ptly cldy   none
     03:00    40    10     13   259    (W)   2436  ptly cldy   none
     04:00    39    13     12   262    (W)   2231 mstly clr    none
     05:00    39    12     13   264    (W)   2517    clear     none
     06:00    38    12     14   296  (WNW)   2419    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