Subject: 3.5m Night Log 20210918
From: mcmillan@apo.nmsu.edu
Date: Sun, 19 Sep 2021 12:52:15 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Saturday, September 18, 2021
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
UW11  Y.Notsu           Y.Notsu
WY01  A.Cavanaugh       A.Cavanaugh
                         ACTUAL
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
UW11  ECHELLE        20:05   01:07
WY01  TSPEC          01:10   06:03
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
UW11/R      19:13  01:10    0   0.9   0    0   0.0  5.1   0    0
WY01/R      01:10  06:41    0    0    0    0   1.3  4.2   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: R.McMillan
We had some nearby rain before sunset, and possible threatening clouds hung around into twilight, so our opening was delayed at the start of the night.  But after that the night was mostly clear, with mostly decent seeing, and the telescope and instruments behaved well, leaving me plenty of time to wrestle with ARCSAT.
                    ------- 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
--------------------------------------------------------------------------
 20:13 ecamera    243(  272) -25  75  16.6 18.8 18.8 18.7 18.0   ND1  1.15
 01:18 tcamera    393( 1449) -75  58  14.7 13.9 14.6 13.8 14.1   Ks  1.13
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    67    41     11   240  (WSW)   1640  ptly cldy   none
     17:00    69    37     14   170    (S)   1387 mstly cldy lt rain
     18:00    67    36      8   148  (SSE)   1192 mstly cldy   none
     19:00    64    33     11   162  (SSE)   1315 mstly cldy   none
     20:00    62    36     13   128   (SE)   1328  ptly cldy   none
     21:00    61    35     17   133   (SE)   1448  ptly cldy   none
     22:00    61    34     11   141   (SE)   1374 mstly clr    none
     23:00    59    38     18   135   (SE)   1506    clear     none
     00:00    59    40     14   128   (SE)   1578 mstly clr    none
     01:00    58    37     18   138   (SE)   1454    clear     none
     02:00    57    34     18   141   (SE)   1152 mstly clr    none
     03:00    57    33     18   144   (SE)   1314    clear     none
     04:00    58    34     13   162  (SSE)   1274    clear     none
     05:00    59    33      8   176    (S)   1386 mstly clr    none
     06:00    58    34     16   200  (SSW)   1286 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.
              ----------  TELESCOPE SOFTWARE  ----------
Current TCC version: 1.4.2
Current HUB version: v20171231_01
Current TUI version: 2.6.0