Subject: 3.5m Night Log 20250426
From: cgray@apo.nmsu.edu
Date: Sun, 27 Apr 2025 12:16:09 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Saturday, April 26, 2025
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
CU01  C.Murray          C.Murray
OU05  M.Kilic           G.Jewett
CU02  K.McGouldrick     K.McGouldrick
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
CU01  KOSMOS         19:57   23:30
OU05  KOSMOS	     01:57   04:00
CU02  TripleSpec     04:15   06:01
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
CU01/R      19:50  23:30    0    0    0    0   3.7  0.0   0    0
OU05/R      23:30  04:11   2.5   0    0    0   2.2  0.0   0    0
CU02/R      04:11  06:11    0    0    0    0   1.8  0.2   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: C.Gray
The night started out beautiful, with clear skies and good seeing. However, the storms to the east blow out and brought dust, forcing us to close for a couple hours. But then the wind shifted and we were able to reopen! The winds starting picking up around 4 am but didn't cause an issue or increase in dust, though it brought some thin clouds with 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
--------------------------------------------------------------------------
 20:28 kosmos   287( 1242)  66  52  12.4 13.8 13.8 13.2 12.9   --  1.00
 02:11 khigh   238( 1068)  29  66  11.5 11.3 12.0 11.4 11.2   --  0.91
 04:19 tcamera    304( 1328)  72  70   9.9 10.2 10.9 10.2 10.1   Ms  1.23
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    64    15     23   213  (SSW)   1417    clear     none
     17:00    64    15     14   237  (WSW)   1961    clear     none
     18:00    62    14     15   218   (SW)   1408    clear     none
     19:00    60    10     14   223   (SW)   1526    clear     none
     20:00    54     6     15   203  (SSW)   1558    clear     none
     21:00    55     7     15   208  (SSW)   2321    clear     none
     22:00    56     8     21   209  (SSW)   3255    clear     none
     23:00    56    10     23   200  (SSW)   3312    clear     dust
     00:00    54     7     23   198  (SSW)   5069    clear     dust
     01:00    53    18     22   187    (S)   4206    clear     dust
     02:00    52    14     18   191    (S)   2661    clear     none
     03:00    51    11     20   214   (SW)   2445    clear     none
     04:00    52     8     23   212  (SSW)   1596    clear     none
     05:00    50     9     22   233   (SW)   1539 mstly clr    none
     06:00    50     8     19   204  (SSW)   1204 mstly clr    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: 3.1.8