Subject: 3.5m Night Log 20250731
From: ajt@apo.nmsu.edu
Date: Fri,  1 Aug 2025 12:11:45 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Thursday, July 31, 2025
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
NA01  A.Jaskot          A.Jaskot
OU01  G.Jewett          G.Jewett
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
NA01  KOSMOS         --:--   --:--
OU01  ARCTIC         --:--   --:--
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
NA01/R      20:11  01:10   1.3  3.6   0    0   0.0  0.0   0    0
OU01/R      01:10  06:09   5.0   0    0    0   0.0  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: A.Townsend
Mirror covers had to be reset at checkout. Powercycled dataq twice on tron without needing to restart PMSS stripchart program.
Clouds and humidity, plus nearby storms and radar that hung around all night kept us closed. rain in the evening before sunset and a few sprinkles this morning, but nothing exciting. Dust elevated towards the end of the night.
Omea all-sky camera functioned all night. Outside 3.5m TSL dewpoint sensor may be frozen.
                    ------- 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
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               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    66    50      8   189    (S)   1794 mstly cldy   none
     17:00    56    48     21    76  (ENE)        mstly cldy   none
     18:00    55    48     17    80    (E)        mstly cldy   rain
     19:00    57    47      9   114  (ESE)   1316 mstly cldy   none
     20:00    60    44      8   146   (SE)   1980 mstly cldy   none
     21:00    59    45      3   190    (S)   2236 mstly cldy   none
     22:00    60    47      3   139   (SE)   2211 mstly cldy   none
     23:00    59    47      6   181    (S)   2651 mstly cldy   none
     00:00    56    48      6   354    (N)        mstly cldy  humid
     01:00    55    41      2   198  (SSW)        mstly cldy  humid
     02:00    55    33      3   158  (SSE)   2085 mstly cldy  humid
     03:00    58    32      9   187    (S)   2654 mstly cldy   none
     04:00    58    32      8   184    (S)   2951 mstly cldy   none
     05:00    58    32      5   176    (S)   2735 mstly cldy lt rain
     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