Subject: 3.5m Night Log 20251018
From: tmcquaid@apo.nmsu.edu
Date: Sun, 19 Oct 2025 13:24:24 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Saturday, October 18, 2025
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
NM03  T.McQuaid         T.McQuaid
NM01  M.Prescott        M.Prescott,10students
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
NM03  ECHELLE        18:35   01:08
NM01  ARCTIC         1:10    07:02
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
NM03/R      18:35  01:10    0    0    0    0   6.6  0.0   0    0
NM01/R      01:10  07:02    0    0    0    0   4.3  1.6   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: T.McQuaid
Opened dome for cooling at 17:20
Switched out ARCTIC for eyepiece for beginning of B-half, then switched back to ARCTIC at 02:05.
Restarted DATAQ at 02:15
Switched to echelle at 05:00
Switched back to ARCTIC at 06:00 for twilight flats
                    ------- 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
--------------------------------------------------------------------------
 18:59 ecamera    549(   75)  58  58   8.3  9.0  8.8  8.6  7.8   ND1  1.74
 20:08 ecamera    459(  -17)  23  67  10.5  9.1  9.3  8.9  9.8   Clear  2.22
 02:28 arctic   399( 1006) -49  48  10.1  8.6  9.3  8.1  9.4   NMSU645/10  1.10
 05:12 ecamera    372( -151) -151  48   9.2  7.8  8.6  7.7  8.1   ND2  0.93
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    50    23      4   341  (NNW)    325    clear     none
     17:00    49    22     10    45   (NE)    347    clear     none
     18:00    48    21      9   358    (N)    408    clear     none
     19:00    47    20     15    45   (NE)    429    clear     none
     20:00    50    15     20    32  (NNE)    315    clear     none
     21:00    50    13     17    25  (NNE)    282    clear     none
     22:00    46     9      9    15  (NNE)    355    clear     none
     23:00    51    16      9   181    (S)    380    clear     none
     00:00    49    14      7   183    (S)    407    clear     none
     01:00    51    18      5   192  (SSW)    427    clear     none
     02:00    48    18      4   211  (SSW)    457    clear     none
     03:00    50    14      6   194  (SSW)    338    clear     none
     04:00    49    15      9   148  (SSE)    347    clear     none
     05:00    48    17      8   181    (S)    457    clear     none
     06:00    46    18      4   179    (S)    506    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