Subject: 3.5m Night Log 20230901
From: ajt@apo.nmsu.edu
Date: Sat,  2 Sep 2023 13:03:15 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Friday, September 01, 2023
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
UV02  J.Davidson        J.Davidson,R.Wilson,E.Horch
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
UV02  DSSI           19:33   06:28
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
UV02/O      19:37  01:10    0    0    0    0   1.1  4.4   0    0
UV02/O      01:10  06:30    0    0    0    0   0.0  5.3   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: A.Townsend
I had to power cycle dataq again.
We had one slew fail due to being at the end of the rotator wrap at timestamp 2023-09-02 08:50:25.
There were wispy and thin clouds coming through for most of the night, but the seeing was decent and no other weather trouble.
                    ------- 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
--------------------------------------------------------------------------
 19:52 dssi   405( 2013) -14  50  17.3 19.2 19.2 19.3 17.6   692  0.95
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    72    34     13   196  (SSW)    579 mstly clr    none
     17:00    68    29     16   129   (SE)    428 mstly clr    none
     18:00    68    33      8   180    (S)    573 mstly clr    none
     19:00    66    32     10   208  (SSW)    564 mstly clr    none
     20:00    63    29     14   168  (SSE)    556 mstly clr    none
     21:00    63    31     15   152  (SSE)    620 mstly clr    none
     22:00    63    30     16   142   (SE)    644 mstly clr    none
     23:00    61    32     21   127   (SE)    853 mstly clr    none
     00:00    61    30     20   126   (SE)    967 mstly clr    none
     01:00    60    30     19   126   (SE)   1142 mstly clr    none
     02:00    60    31     14   131   (SE)   1170 mstly clr    none
     03:00    59    33     20   131   (SE)   1217 mstly clr    none
     04:00    58    33     20   133   (SE)   1390    clear     none
     05:00    57    32     18   147  (SSE)   1301    clear     none
     06:00    58    30     15   147  (SSE)   1234    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.
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