Subject: 3.5m Night Log 20250111
From: tsutherland@apo.nmsu.edu
Date: Sun, 12 Jan 2025 13:50:35 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Saturday, January 11, 2025
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
UW08  S.Hawley          L.Hebb
AP02  S.Merkowitz       R.McMillan,T.Sutherland,B.Ketzeback
NM03  A.Peck            A.Peck,E.Neilsen
UW01  P.Yoachim         J.Jiang
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
UW08  Echelle        17:45   22:56
AP02  APOLLO         23:03   00:11
NM03  Echelle        12:31   04:25
UW01  KOSMOS         04:32   06:22
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
UW08/R      17:25  23:10    0    0    0    0   0.0  5.7   0    0
AP02/R      23:10  00:10    0    0    0    0   0.0  1.0   0    0
NM03/R      00:10  04:30    0    0    0    0   0.0  4.3   0    0
UW01/R      04:30  06:57    0    0    0    0   0.6  1.9   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: T.Sutherland,R.McMillan
Thanks Amanda for helping me get the arcsat filter wheel unstuck.
Inside optidew humidity sensor was acting strange, it was constantly at 100% for about 30 minutes around 3am.
Soft failure of the kosmos slitviewer shutter at -7C. This caused problems with guiding.
No morning echelle IOL as cals were being taken.
                    ------- 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
--------------------------------------------------------------------------
 17:53 ecamera    192( -485) 237  59  -0.4  0.5  1.4  0.4 -0.2   ND2  1.31
 19:42 ecamera    417( -322) 220  44  -1.9 -1.1 -0.8 -1.7 -1.9   ND2  1.51
 00:19 ecamera    366( -593) -25  80  -5.4 -5.3 -4.7 -5.5 -5.5   clear  2.28
 04:44 kosmos   341(  338) -27  54  -6.1 -6.5 -5.9 -6.8 -6.6   --  1.81
    ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    34    12     10   328  (NNW)    113    clear     none
     17:00    33    12     16   337  (NNW)     64    clear     none
     18:00    31    13     14   354    (N)    126    clear     none
     19:00    30    12      2   333  (NNW)    241    clear     none
     20:00    28    14      7   353    (N)    412    clear     none
     21:00    27    13      8     4    (N)    219    clear     none
     22:00    26    10     21    20  (NNE)    246    clear     none
     23:00    24     9     17    22  (NNE)    272    clear     none
     00:00    22     7     12    31  (NNE)    321    clear     none
     01:00    24     6     12   341  (NNW)    327    clear     none
     02:00    26     7      9   321   (NW)    217    clear     none
     03:00    24     4      5   271    (W)    233    clear     none
     04:00    22     9      3   102  (ESE)    227    clear     none
     05:00    18     5      5    89    (E)    261    clear     none
     06:00    22     3      2   142   (SE)    176    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: 3.1.5