Subject: 3.5m Night Log 20251005
From: tsutherland@apo.nmsu.edu
Date: Mon,  6 Oct 2025 12:27:29 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Sunday, October 05, 2025
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
NM02  A.Smith           A.Smith,E.Neilsen
GS04  S.Lepine          Z.Way
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
NM02  ECHELLE        18:52   01:10
GS04  ECHELLE        01:10   06:07
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
NM02/R      18:51  01:10    0    0    0    0   0.0  6.3   0    0
GS04/R      01:10  06:53    0    0    0    0   0.4  5.3   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: T.Sutherland
Restarted dataq at start of night.
Opened at 6:10pm to start venting. Gave slew permissions at 6:52pm and had to wait about 15 minutes for it to get dark enough to focus. Observer finished on sky just after 6am.
Some clouds appeared around 9pm, but other than that we had a nice clear night with good seeing!
No telescope or instrument 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
--------------------------------------------------------------------------
 19:11 ecamera    548(  322) -34  34  13.0 13.9 14.0 13.5 12.9   ND4  0.97
 21:30 ecamera    450(  125) 165  57  12.8 12.2 12.8 12.0 12.1   ND2  0.86
 01:21 ecamera    384(   33) 323  62  12.6 11.7 12.2 11.8 12.4   clear  0.86
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    60    41     16   226   (SW)    623    clear     none
     17:00    61    42     15   235   (SW)    689    clear     none
     18:00    60    42     16   241  (WSW)    869    clear     none
     19:00    55    40     14   194  (SSW)   1051    clear     none
     20:00    55    42     14   209  (SSW)   1101 mstly clr    none
     21:00    55    42     13   214   (SW)   1294  ptly cldy   none
     22:00    54    38      9   233   (SW)    869 mstly clr    none
     23:00    55    34     10   223   (SW)    550    clear     none
     00:00    54    32     12   217   (SW)    534    clear     none
     01:00    54    31     10   221   (SW)    491    clear     none
     02:00    55    28     11   244  (WSW)    480    clear     none
     03:00    55    27      8   263    (W)    541    clear     none
     04:00    55    27      6   253  (WSW)    473    clear     none
     05:00    54    26      7   190    (S)    508    clear     none
     06:00    52    29     12   136   (SE)    534    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: 3.1.8