Subject: 3.5m Night Log 20210607
From: ajt@apo.nmsu.edu
Date: Tue,  8 Jun 2021 12:05:26 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Monday, June 07, 2021
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
NM07  D.Bizyaev          D.Bizyaev
UW03  T.Dorn-Wallenstein T.Dorn-Wallenstein
                         ACTUAL
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
NM07  DIS            20:45   01:07
UW03  ECHELLE        01:07   05:40
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
NM07/R      20:19  01:10    0    0    0    0   4.9  0.0   0    0
UW03/R      01:10  05:46    0    0    0    0   3.5  1.1   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: A.Townsend,J.Dembicky
There was a motion error at 52 alt slewing downwards at 21:40; did a tcc axis stop and init to get it to work again.
1-2 amp oscillations occurred a few times in the altitude current strip chart (with corresponding higher amplitude T Cell oscillations); noted at 22:50, alt = 50, az = -126, and at 03:18, alt = 72, az = -2.
Thin clouds on IR sky camera most of the night. A line of thicker clouds around 2:20 am that made observing more difficult for about an hour.
Jack significantly improved the focus of the optical cloud camera! and Amanda learned how to use ARCSAT.
There was a lot of pollen on the cars this morning.
                    ------- 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
--------------------------------------------------------------------------
 20:44 dcamera    569( 1226)  -5  75  17.4 19.0 19.4 18.7 17.8   --  1.00
 01:21 ecamera    435(   24) 160  63  15.8 15.7 16.5 15.5 15.3   ND4  0.79
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    72    31     15   228   (SW)    880 mstly clr    none
     17:00    71    27     19   264    (W)    603 mstly clr    none
     18:00    70    27     11   265    (W)    667 mstly clr    none
     19:00    68    24     12   257  (WSW)    531 mstly clr    none
     20:00    64    20     16   261    (W)    549 mstly clr    none
     21:00    64    21     17   267    (W)    577  ptly cldy   none
     22:00    63    20     15   268    (W)    692  ptly cldy   none
     23:00    63    18     18   273    (W)    602  ptly cldy   none
     00:00    63    19     12   263    (W)    560  ptly cldy   none
     01:00    61    22      8   266    (W)    638  ptly cldy   none
     02:00    59    22      6   338  (NNW)    767 mstly cldy   none
     03:00    60    21      6   268    (W)    744 mstly cldy   none
     04:00    58    21      7   264    (W)    668  ptly cldy   none
     05:00    57    19      5   253  (WSW)    801 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