Subject: 3.5m Night Log 20240525
From: cgray@apo.nmsu.edu
Date: Sun, 26 May 2024 12:00:06 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Saturday, May 25, 2024
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
GS03  T.Henry           S.Majewski, J.Davidson
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
GS03  DSSI           01:03   05:45
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
GS03/R      20:11  05:49   2.4  2.5   0    0   0.0  4.7   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: C.Gray
The night started with high winds (50 mph) and lots of dust! 17K for the 1.0 um. However, the wind shifted to the north after midnight, the dust counts dropped to safe levels, and we were able to open!
Dataq needed to be restarted during the evening.
                    ------- 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
--------------------------------------------------------------------------
 00:22 dssi   330( 1570) -46  67  11.3 11.6 12.7 11.4 11.1   692  1.70
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    63    14     31   259    (W)   9615 mstly clr    dust
     17:00    65    15     43   246  (WSW)  15397 mstly clr    dust
     18:00    64    12     36   240  (WSW)  10015 mstly clr    dust
     19:00    62    11     22   263    (W)   8951    clear     dust
     20:00    58     7     28   263    (W)   9229    clear     dust
     21:00    56     8     22   264    (W)  11382    clear     dust
     22:00    54     9     18   273    (W)   6715    clear     dust
     23:00    54    11     17   288  (WNW)  17416    clear     dust
     00:00    53    13     28   298  (WNW)   8263    clear     dust
     01:00    52    15     22   306   (NW)   2736    clear     none
     02:00    51    16     14   277    (W)   2861    clear     none
     03:00    51    17     15   282  (WNW)   2548    clear     none
     04:00    50    18     11   303  (WNW)   4015    clear     dust
     05:00    49    18     19   316   (NW)   2316    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: 3.1.5