Subject: 3.5m Night Log 20230914
From: mcmillan@apo.nmsu.edu
Date: Fri, 15 Sep 2023 12:44:30 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Thursday, September 14, 2023
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
GS02  D.Gies            K.Shepard
OU02  A.Moss            A.Moss
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
GS02  ECHELLE        19:45   01:05
OU02  KOSMOS         01:09   06:10
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
GS02/R      19:19  01:10   0.4   0    0    0   5.4  0.0   0    0
OU02/R      01:10  06:38    0    0    0    0   5.5  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: R.McMillan
We had clear skies and good seeing for most of the night.  I delayed opening because
of a ßrainstorm before sunset that left some lingering traces around, but we did get
going during evening twilight so very little time was lost.
I checked on DIS contamination (red is excellent, blue is about half usable and
still slowly improving) and I did some tests of KOSMOS disperser stickage at
different rotations (I triggered three sticks but did not find a clear pattern).
                    ------- 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
--------------------------------------------------------------------------
 18:56 ecamera    383(  394)  -4  36  12.9 14.7 14.2 14.4 13.7   ND4  0.83
 00:28 khigh   315( 1233)  57  38  11.7 11.7 12.3 11.4 11.6   -  0.91
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    61    44     11   244  (WSW)    613 mstly cldy   none
     17:00    56    44     10   296  (WNW)    634   cloudy     rain
     18:00    58    42      4   264    (W)         ptly cldy lt rain
     19:00    57    42     12   274    (W)    639 mstly clr    none
     20:00    55    42     14   294  (WNW)    682    clear     none
     21:00    56    42     12   301  (WNW)    614    clear     none
     22:00    56    39     13   270    (W)    501    clear     none
     23:00    55    39      8   268    (W)    440    clear     none
     00:00    55    40      8   294  (WNW)    498    clear     none
     01:00    54    41      8   270    (W)    531    clear     none
     02:00    53    42      7   270    (W)    530    clear     none
     03:00    53    42      3   257  (WSW)    563 mstly clr    none
     04:00    53    42      7   314   (NW)    678  ptly cldy   none
     05:00    53    41      9   307   (NW)    610  ptly cldy   none
     06:00    53    42      6   265    (W)    587 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: 3.1.3beta0