Subject: 3.5m Night Log 20210916
From: cgray@apo.nmsu.edu
Date: Fri, 17 Sep 2021 12:13:08 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Thursday, September 16, 2021
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
BY04  D.Stephens        D.Stephens
JH03  D.Nataf           D.Nataf
                         ACTUAL
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
BY04  TSPEC          20:24   01:04
JH03  ECHELLE        01:08   05:50
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
BY04/R      19:16  01:10    0   1.1   0    0   0.0  4.8   0    0
JH03/R      01:10  06:40    0    0    0    0   3.4  2.1   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: C.Gray
THe night started with rain coming our way. Thankfully, it cleared up about an hour after sunset and we had some beautiful skies with good seeing!
No problems tonight.
compressor blew fuse in the ac unit. When done with the night, make sure to turn the AC off.
                    ------- 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
--------------------------------------------------------------------------
 20:31 tcamera    168( 1449) 244  65  17.4 18.8 18.5 18.4 17.6   MKs  0.97
 21:59 tcamera    325( 1525) 247  59  17.0 17.0 17.3 16.6 16.8   MKs  0.87
 01:11 ecamera    359(  231) 261  59  15.4 15.3 16.0 15.2 15.2   Clear  1.14
 02:22 ecamera    346(  178)  -3  65  14.8 14.6 15.2 14.4 14.6   Clear  1.07
 03:31 ecamera    389(  212) -78  48  14.7 14.1 14.8 14.0 14.3   Clear  1.33
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    67    35      8   268    (W)   1397 mstly clr    none
     17:00    67    34     15   300  (WNW)   1338 mstly clr    none
     18:00    66    36     11   261    (W)   1345 mstly clr    none
     19:00    62    38      9   229   (SW)   1420  ptly cldy   none
     20:00    61    35      0   268    (W)   1398 mstly clr    none
     21:00    63    34      7   222   (SW)   1329    clear     none
     22:00    63    33     11   232   (SW)   1286 mstly clr    none
     23:00    62    34     12   222   (SW)   1378 mstly clr    none
     00:00    62    33      9   184    (S)   1288 mstly clr    none
     01:00    60    37     11   195  (SSW)   1349    clear     none
     02:00    59    37      8   174    (S)   1317    clear     none
     03:00    58    38     12   175    (S)   1726    clear     none
     04:00    58    36      6   203  (SSW)   1528    clear     none
     05:00    60    33      2   232   (SW)   1221    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: 2.6.0