Subject: 3.5m Night Log 20250126
From: tsutherland@apo.nmsu.edu
Date: Mon, 27 Jan 2025 13:28:57 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Sunday, January 26, 2025
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
WY02  M.Moe             M.Frank,N.Patten
NM06  K.Sanderson       K.Sanderson
UW01  P.Yoachim         Z.Liu,D.Meng,Z.Xu
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
WY02  KOSMOS         18:19   23:38
NM06  KOSMOS         00:05   04:05
UW01  KOSMOS         04:07   06:09
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
WY02/R      17:39  00:10    0    0   1.5   0   5.0  0.0   0    0
NM06/R      00:10  04:15    0    0   1.0   0   3.1  0.0   0    0
UW01/R      04:15  06:52    0    0   1.0   0   0.6  1.1   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: T.Sutherland,R.McMillan
It was...  an eventful night...
Arctic got stuck on the telescope. Thank you Bill for coming to the rescue!
A huge thank you Russet for all the help with the kosmos target placement on the slit. The majority of lost equipment time is due to not having a slitviewer, and having to manually put the target on the slit each time.
Kosmos slit wheel and disperser wheel both got stuck. I moved them by hand to fix it.
Note: equipment loss was due to the extra time required to acquire star due to stuck KOSMOS shutter.
                    ------- FAILURE LOG -------
              FAILURE MODE     TIME
PROG   INSTR     TI/SHU    START  FINISH  DESCRIPTION
----------------------------------------------------------------------
WY02  Kosmos    I/H    21:20   21:30   Kosmos slit wheel got stuck.
NM06  Kosmos    I/H    02:10   02:20   Kosmos disperser wheel got stuck.
            ---------------- FOCUS LOG ---------------
Time  Instrument  Focus     Az  El  Temp Strc Prim  Sec  Air  filt  FWHM
--------------------------------------------------------------------------
 20:45 kosmos   489(  883) -38  28   2.7  1.4  3.0  2.3  2.6   --  1.60
 23:56 kosmos   374(  729) 149  70   2.7  1.2  2.5  2.0  2.1   --  1.20
    ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    39     9     14   258  (WSW)    921    clear     none
     17:00    37     8      9   258  (WSW)    958    clear     none
     18:00    36     8     15   289  (WNW)    996    clear     none
     19:00    36     8     10   267    (W)   1008    clear     none
     20:00    37     9     12   228   (SW)   1005    clear     none
     21:00    37     9     11   231   (SW)   1028    clear     none
     22:00    37    10     10   214   (SW)   1695    clear     none
     23:00    37     8     11   192  (SSW)   1612    clear     none
     00:00    37     9     12   189    (S)   1891    clear     none
     01:00    37     9     15   208  (SSW)   1900    clear     none
     02:00    37     9     17   234   (SW)   1651    clear     none
     03:00    36    11     17   206  (SSW)   1735    clear     none
     04:00    36    12     12   200  (SSW)   1264    clear     none
     05:00    36    11     12   195  (SSW)   1146    clear     none
     06:00    36    14     18   206  (SSW)    847    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