Subject: 3.5m Night Log 20230422
From: dembicky@apo.nmsu.edu
Date: Sun, 23 Apr 2023 12:29:51 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Saturday, April 22, 2023
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
OU02  M.Schutte         G.Stefansson, J.Sinclaire
JH03  R.Angulo          R.Angulo
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
OU02  ARCTIC         21:30   03:10
JH03  ARCTIC         03:10   06:10
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
OU02/R      19:47  03:10    0   1.7   0    0   4.4  1.2   0    0
JH03/R      03:10  06:16    0    0    0    0   3.1  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: J.Dembicky
ARCTIC filter wheel had an issue moving to the SDSS i filter when the observer was doing their cals. The instrument was at 0 deg rotation.  I had previously homed the wheel when I changed the SDSS u filter and had no issues.  I re-homed the wheel and that seemed to solve the issue.
Clouds and then elevated dust levels kept us closed at the start of the night.  Dust levels were elevated for most of the remainder of the night but we remained open.
No telescope issues 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
--------------------------------------------------------------------------
 21:38 arctic   346(  874)  81  63  10.0 10.2 11.2 10.0  9.1   Semrock  1.29
 21:41 NA2gdr   696(38696)  81  63  10.0 10.1 11.1  9.9  8.9   Clear  1.37
 03:21 arctic   403(  643) -26  61  10.0  4.0  4.9  3.7  4.1   SDSS_r  1.03
 03:25 NA2gdr -1773(36226) -28  60  10.0  4.0  4.8  3.7  4.0   clear  1.29
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00                 11   273    (W)    889  ptly cldy   none
     17:00                 15   193  (SSW)    978  ptly cldy   none
     18:00                 20   236   (SW)    941 mstly cldy   none
     19:00                  9   159  (SSE)   1832 mstly cldy   none
     20:00                 12   108  (ESE)   2456 mstly cldy   dust
     21:00                  5   172    (S)   2596  ptly cldy   none
     22:00                 12   202  (SSW)   2025  ptly cldy   dust
     23:00                  2    68  (ENE)   4955 mstly clr    dust
     00:00                  5     8    (N)   4332 mstly clr    dust
     01:00                  5   262    (W)   3245 mstly clr    dust
     02:00                  1   227   (SW)   3556 mstly clr    dust
     03:00                  1   302  (WNW)   3710 mstly clr    dust
     04:00                  3    40   (NE)   3512 mstly clr    dust
     05:00                  6    24  (NNE)   2485    clear     none
     06:00                  9    47   (NE)   2167    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: a>