Subject: 3.5m Night Log 20210325
From: mcmillan@apo.nmsu.edu
Date: Fri, 26 Mar 2021 12:55:37 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Thursday, March 25, 2021
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
EN01  B.Ketzeback       R.McMillan
WY01  M.Brotherton      J.McLane
                         ACTUAL
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
EN01  TSPEC          03:20   04:20
EN01  SHACK          04:25   05:10
WY01  TSPEC          05:12   06:30
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
EN01/W      19:27  05:10    0   7.9   0    0   0.0  1.8   0    0
WY01/R      05:10  06:50    0    0    0    0   0.8  0.9   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: R.McMillan
We had heavy clouds for most of the night.  I opened after 3 am, but initially there were still some pesky clouds and the seeing wasn't good enough for top-priority tasks.  I did some feasibility testing with Tspec, then when the telescope was a little cooler I checked collimation, and then it was time to hand over for science.
                    ------- 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
--------------------------------------------------------------------------
 02:20 tcamera    461(  596) 158  47  -0.8 -0.5 -0.2 -0.6 -0.9   Ks  1.57
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    33    19     25   224   (SW)    591   cloudy     none
     17:00    35    16     22   251  (WSW)   1142   cloudy     none
     18:00    32    14     17   254  (WSW)    732   cloudy     none
     19:00    32    16     17   239  (WSW)    806   cloudy     none
     20:00    31    17      9   250  (WSW)    809   cloudy     none
     21:00    31    15     14   225   (SW)    703   cloudy     none
     22:00    31    13     17   221   (SW)    772   cloudy     none
     23:00    30    14     18   244  (WSW)    723   cloudy     none
     00:00    31    17     21   246  (WSW)   1043   cloudy     none
     01:00    31    17     18   246  (WSW)   1120   cloudy     none
     02:00    31    16     20   251  (WSW)   1095 mstly cldy   none
     03:00    31    18     26   256  (WSW)   1095  ptly cldy   none
     04:00    30    17     17   276    (W)   1212    clear     none
     05:00    29    17     17   260    (W)   1254    clear     none
     06:00    27    14     14   267    (W)   1479    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