Subject: 3.5m Night Log 20240716
From: ajt@apo.nmsu.edu
Date: Wed, 17 Jul 2024 11:49:53 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Tuesday, July 16, 2024
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
CU01  Y.Notsu           Y.Notsu
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
CU01  ARCTIC         20:22   03:47
CU01  ARCTIC         04:35   05:07
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
CU01/R      20:20  05:59   0.8   0    0    0   2.9  5.9   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: A.Townsend
We started off the night with clouds that cleared up pretty quickly, and stayed open until about 03:47 when the radar got too close for comfort. We opened up about 45 minutes later and observed until twilight, despite some annoying clouds.
No telescope or instrument problems.
                    ------- 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
--------------------------------------------------------------------------
 19:49 arctic   456( 1832) 126  39  18.7 20.4 20.4 19.7 19.2   ARCTIC_4170  1.53
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    73    44      9   271    (W)   3848  ptly cldy   none
     17:00    75    41      8   259    (W)   3328  ptly cldy   none
     18:00    71    34      7    88    (E)   2510  ptly cldy   none
     19:00    68    33     11    61  (ENE)   2428  ptly cldy   none
     20:00    68    32     12    86    (E)   2103 mstly clr    none
     21:00    65    33     11    92    (E)   2198    clear     none
     22:00    64    33     14   114  (ESE)   2206    clear     none
     23:00    64    35     19   121  (ESE)   2435    clear     none
     00:00    62    36     15   122  (ESE)   2576    clear     none
     01:00    61    36     13   109  (ESE)   2456    clear     none
     02:00    62    36     11    87    (E)   2477    clear     none
     03:00    62    37      8    96    (E)   2586  ptly cldy   none
     04:00    65    34     15    14  (NNE)   2446 mstly cldy   none
     05:00    61    39     13    82    (E)   2721 mstly cldy   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