Subject: 3.5m Night Log 20250424
From: ajt@apo.nmsu.edu
Date: Fri, 25 Apr 2025 12:55:14 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Thursday, April 24, 2025
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
NM08  K.Sanderson       K.Sanderson,M.Prescott
UW02  P.Yoachim         D.Meng,Z.Liu
CU02  K.McGouldrick     K.McGouldrick
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
NM08  KOSMOS         20:57   01:09
UW02  KOSMOS         01:09   04:00
CU02  TSPEC          04:15   06:13
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
NM08/R      19:49  01:10    0    0    0    0   5.4  0.0   0    0
UW02/R      01:10  04:13    0    0    0    0   3.1  0.0   0    0
CU02/R      04:13  06:13    0    0    0    0   0.6  1.4   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: A.Townsend
Motion error 20:59 alt 46 slewing down, first slew on sky.
A few thin clouds at the start and end of the night. We stayed closed at the start of the night for cals.
                    ------- 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
--------------------------------------------------------------------------
 21:14 kosmos    75(  985)  37  49  10.9 12.8 12.8 12.5 11.4   --  1.14
 23:56 kosmos   350( 1136) -29  52  10.3 10.2 10.9 10.2 10.4   --  0.92
 01:18 kosmos   320( 1117) -69  28  10.7 10.0 10.8  9.8 10.6   --  0.95
 04:25 tcamera    285( 1273)  83  61   8.9  9.3 10.1  9.1  9.1   Ks  0.97
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    61    12      9   201  (SSW)   1094    clear     none
     17:00    61    13     12   268    (W)    734  ptly cldy   none
     18:00    59    10     13   262    (W)    876  ptly cldy   none
     19:00    55     5     14   265    (W)    882  ptly cldy   none
     20:00    51     1      9   262    (W)    855 mstly clr    none
     21:00    51     1      9   209  (SSW)   1049 mstly clr    none
     22:00    52     3      8   199  (SSW)   1193    clear     none
     23:00    51     3      9   228   (SW)   1220    clear     none
     00:00    51     2      7   222   (SW)   1201    clear     none
     01:00    51     2      7   209  (SSW)   1404    clear     none
     02:00    52     2      8   237  (WSW)   1313    clear     none
     03:00    51     2      7   253  (WSW)   1297    clear     none
     04:00    50     1      8   206  (SSW)   1412    clear     none
     05:00    48     2      9   200  (SSW)   1684 mstly clr    none
     06:00    49     5      9   193  (SSW)   2686 mstly clr    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.
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Current HUB version: v20171231_01
Current TUI version: 3.1.8