Subject: 3.5m Night Log 20230223
From: mcmillan@apo.nmsu.edu
Date: Fri, 24 Feb 2023 13:25:35 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Thursday, February 23, 2023
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
WY02  M.Brotherton      M.Brotherton
UW06  B.Morris          L.Hebb,S.Hawley
UW08  C.Chandler        C.Chandler
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
WY02  TSPEC          18:12   19:34
UW06  ECHELLE        19:42   00:04
UW08  ARCTIC         00:20   06:15
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
WY02/R      18:04  19:49    0    0    0    0   0.0  1.8   0    0
UW06/R      19:49  00:10    0    0    0    0   2.1  2.2   0    0
UW08/R      00:10  06:29    0    0    0    0   6.3  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: R.McMillan
We had clear skies and borderline winds at the start of the night, then lighter winds but high clouds for the second half of the night.  I encouraged the first observer to move away from his primary target a little early because of wind, but observations continued.  Once the wind settled, there were no further problems.
                    ------- 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
--------------------------------------------------------------------------
 18:20 tcamera    599(  836)  14  62  10.0  0.8  0.9  1.6  1.0   Ks  1.35
 20:23 ecamera    416( -613)  33  56  10.0  0.4  1.0  0.5  0.9   Clr  0.95
 00:33 arctic   452(  555) 253  28  10.0  0.6  1.4  0.9  1.6   VR  1.35
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00                 33   217   (SW)   2854 mstly clr    none
     17:00                 23   216   (SW)   1969    clear     none
     18:00                 24   203  (SSW)   1708    clear     none
     19:00                 21   206  (SSW)   1546    clear     none
     20:00                 21   201  (SSW)   1785    clear     none
     21:00                 24   193  (SSW)   1614    clear     none
     22:00                 17   185    (S)   1535    clear     none
     23:00                 17   200  (SSW)   1152 mstly clr    none
     00:00                 18   201  (SSW)   1147  ptly cldy   none
     01:00                 24   201  (SSW)   1052 mstly clr    none
     02:00                 23   208  (SSW)   1331 mstly clr    none
     03:00                 18   191    (S)   1650 mstly clr    none
     04:00                 25   205  (SSW)   1930 mstly clr    none
     05:00                 13   239  (WSW)   1924    clear     none
     06:00                 17   234   (SW)   1610    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: 2.6.0