Subject: 3.5m Night Log 20220417
From: mcmillan@apo.nmsu.edu
Date: Mon, 18 Apr 2022 12:14:35 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Sunday, April 17, 2022
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
UW02  A.Heinze          A.Heinze
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
UW02  DIS            20:02   05:30
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
UW02/R      19:43  06:21    0    0    0    0   1.2  9.5   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: R.McMillan
Dust hovered just below the limit all night, so I did not ventilate before opening (resulting in a high initial focus), and kept the fans in a defensive setting all night.  Seeing was mostly okay except when the wind was changing directions.  Telescope and KOSMOS behaved well, including first observations with the 0.73" center slit.
                    ------- 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
--------------------------------------------------------------------------
 19:19 kosmos   821( 1663)  -1  52  12.9 13.5 12.3 13.5 13.3   -  1.24
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    60     1     16   303  (WNW)   4720    clear     none
     17:00    58    -2      6   328  (NNW)   4915    clear     none
     18:00    57    -1      9   340  (NNW)   5582    clear     none
     19:00    57    -1      6   352    (N)   5612    clear     none
     20:00    54    -1     13    49   (NE)   5745    clear     none
     21:00    55    -2     12    73  (ENE)   5936    clear     none
     22:00    55    -8     12    55   (NE)   5311    clear     none
     23:00    55    -5      9    53   (NE)   5405    clear     none
     00:00    56    -1      1   264    (W)   5178    clear     none
     01:00    54    -4      2   118  (ESE)   5081    clear     none
     02:00    54    -2      1    75  (ENE)   5261    clear     none
     03:00    54    -4      1   173    (S)   5297    clear     none
     04:00    53    -5      4   186    (S)   5328    clear     none
     05:00    54    -6      7   135   (SE)   5142    clear     none
     06:00    54    -6      6   121  (ESE)   4689    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