Subject: 3.5m Night Log 20220509
From: cgray@apo.nmsu.edu
Date: Tue, 10 May 2022 12:12:50 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Monday, May 09, 2022
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
UV01  J.Davidson        J.Davidson, E.Horch, S.Majewski, V.Sutherland
JH04  M.Guolo           M.Guolo
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
UV01  DSSI           20:00   00:55
JH04  KOSMOS         01:17   05:50
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
UV01/R      20:00  01:10    0    0    0    0   0.0  5.2   0    0
JH04/R      01:10  05:59    0    0    0    0   2.9  2.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: C.Gray
The first night of DSSI! And it performed beautifully! We were lucky and the dust and wind died down by sunset and had subarc seeing! However, we did have some annoying alt oscillations that lead to us having to break, re-initialize the drives, and make a test slew. This happened at:
 Az  Alt
  24, 79
   3, 61
  --, 34
-105, 47
                    ------- 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
--------------------------------------------------------------------------
 21:22 dssi   175( 1568)  64  76  13.4 13.8 14.3 13.4 13.7   692  0.72
 01:28 klow   265( 1047) -81  32  12.3 11.9 12.6 12.0 12.0   --  1.34
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    64    12     17   259    (W)   2475    clear     dust
     17:00    62    11     21   246  (WSW)   3075    clear     dust
     18:00    64    11     24   265    (W)   2461    clear     none
     19:00    62    10     22   256  (WSW)   2409    clear     none
     20:00    58    10     18   264    (W)   2041    clear     none
     21:00    57     8     18   255  (WSW)   2006    clear     none
     22:00    57     7     14   263    (W)   1968    clear     none
     23:00    57     8     13   257  (WSW)   2062    clear     none
     00:00    57     7     16   256  (WSW)   2051    clear     none
     01:00    54     9     13   266    (W)   2233    clear     none
     02:00    53    11     12   264    (W)   2170    clear     none
     03:00    53    12     10   258  (WSW)   2059    clear     none
     04:00    52    12     16   240  (WSW)   2260    clear     none
     05:00    51    14     14   260    (W)   2108    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