Subject: 3.5m Night Log 20240524
From: cgray@apo.nmsu.edu
Date: Sat, 25 May 2024 12:13:15 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Friday, May 24, 2024
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
UV03  Y.Zhou            J.Davidson, S.Majeski
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
UV03  DSSI           --:--   --:--
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
UV03/R      20:11  05:50   1.4  8.3   0    0    0    0    0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: C.Gray
So what started as a dusty clear night turned into...a dusty clear night. The dust stayed fairly constant around 6K and just wouldn't let up. Then it just increased to 7K at 5am. At that point we called it.
No problems 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
--------------------------------------------------------------------------
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    68    16     13   229   (SW)   4441    clear     dust
     17:00    68    15     10   259    (W)   5238    clear     dust
     18:00    65    14     18   250  (WSW)   6602    clear     dust
     19:00    62    11     24   239  (WSW)   6249    clear     dust
     20:00    58     7     16   249  (WSW)   5722    clear     dust
     21:00    58     6     15   235   (SW)   5542    clear     dust
     22:00    57     6     13   230   (SW)   5615    clear     dust
     23:00    58     6     13   242  (WSW)   5884    clear     dust
     00:00    57     6     16   257  (WSW)   5930    clear     dust
     01:00    57     5     13   236   (SW)   5895 mstly clr    dust
     02:00    56     5     17   247  (WSW)   6232 mstly clr    dust
     03:00    55     4     15   261    (W)   5734    clear     dust
     04:00    53     3     16   246  (WSW)   5356    clear     dust
     05:00    52     6     16   257  (WSW)   6251    clear     dust
     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: 3.1.5