Subject: 3.5m Night Log 20251101
From: ajt@apo.nmsu.edu
Date: Sun,  2 Nov 2025 14:15:31 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Saturday, November 01, 2025
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
UV01  Y.Zhou            J.Davidson,Y.Zhou&Class
UW02  P.Yoachim         Z.Liu,Z.Xu,D.Meng
UW04  S.Hawley          L.Hebb
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
UV01  DSSI           18:21   01:04
UW02  KOSMOS         01:18   02:39
UW04  ECHELLE        02:48   05:49
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
UV01/O      18:20  01:10    0    0    0    0   0.0  6.8   0    0
UW02/R      01:10  02:50    0    0    0    0   0.0  2.7   0    0
UW04/R      02:50  06:14    0    0    0    0   3.2  0.2   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: A.Townsend
Rotator zeroed -0.044 at start of night for DSSI.
Clear night with good seeing! We stayed open all night.
At 00:47, motion error alt 57.7 in the north at end of slew.
UW02 spans the daylight savings time change; times and dssi and kosmos focus values are MDT, ecmaera is MST. All times in above sections are MDT prior to 02:00 and MST after.
                    ------- 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
--------------------------------------------------------------------------
 18:51 dssi   348( 1243) 152  71   7.9  8.5  8.4  8.2  7.8   692  0.80
 01:37 kosmos   450(  800) 325  58   5.8  5.3  6.0  5.1  5.4   --  0.80
 02:53 ecamera    399( -282) 292  58   5.4  4.6  5.4  4.5  5.2   ND3  0.80
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    46    11      5   310   (NW)    353  ptly cldy   none
     17:00    46    13      8   356    (N)    373  ptly cldy   none
     18:00    46    13      3   310   (NW)    606  ptly cldy   none
     19:00    47     7      7   307   (NW)    244    clear     none
     20:00    44    12      4   272    (W)    446    clear     none
     21:00    44    15      3   235   (SW)    421    clear     none
     22:00    43    15      2   218   (SW)    472    clear     none
     23:00    43    13      4   291  (WNW)    399    clear     none
     00:00    43    14      6   271    (W)    371    clear     none
     01:00    44    12      9   328  (NNW)    304    clear     none
     01:00    42    15      2   225   (SW)    450    clear     none
     02:00    42    14     10   311   (NW)    397    clear     none
     03:00    40    12      9   340  (NNW)    323    clear     none
     04:00    44     9      7   358    (N)    277    clear     none
     05:00    43    12     10   350    (N)    346    clear     none
     06:00    45    12      8    27  (NNE)    313    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