Subject: 3.5m Night Log 20190922
From: decolib@apo.nmsu.edu
Date: Mon, 23 Sep 2019 11:41:37 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Sunday, September 22, 2019
                                                           ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
--------------------------------------------------------------------
B.Bolin           B.Bolin               ARCTIC         19:09   00:43
Q.Wang            Q.Wang                DIS            --:--   --:--
   INST       SCHEDULED     WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B    D    B
 ----------------------------------------------------------------
UW13/R/D   19:09   01:10    0.1  0.3  0    0   5.7  0.0   0    0
JH02/R     01:10   06:44    0    5.6  0    0   0.0  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: D.DeColibus
AFternoon and evening started with light clouds and significant amounts of cirrus. UW11 switched with UW13 for a target of opportunity program.
Had to reboot the DIS red ion pump around 7:30 PM.
Light clouds and cirrus persisted throughout the night. The humidity slowly rose through first half, until reaching our limits around 12:45 AM.
We never opened during B half, and the observer called it a night around 5:20 AM.
                    ------- FAILURE LOG -------
PROG   INST   FAILURE MODE     TIME
    (SEDFNVOG)   TI/SHU    START  FINISH  DESCRIPTION
----------------------------------------------------------------------
            ---------------- FOCUS LOG ---------------
Time  Instrument  Focus     Az  El  Temp Strc Prim  Sec  Air  filt  FWHM
--------------------------------------------------------------------------
 19:40 arctic   406( 1096) -15  44  12.4 15.5 14.9 15.1 13.2   sdss_r  1.01
 21:13 arctic   494( 1061) -42  34  12.1 12.7 13.1 12.2 12.1   sdss_r  0.99
 22:34 arctic   428(  960) -59  21  11.3 11.7 12.2 11.4 11.2   sdss_r  1.59
 23:47 arctic   455(  953) -80  38  11.1 11.3 11.9 11.1 11.1   sdss_r  1.05
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    59    40      7   267    (W)    149 mstly clr    none
     17:00    58    36      8   303  (WNW)    121  ptly cldy   none
     18:00    56    42      1   239  (WSW)    132  ptly cldy   none
     19:00    55    40      3   305   (NW)    167  ptly cldy   none
     20:00    54    43      3   254  (WSW)    156  ptly cldy   none
     21:00    54    43      7   202  (SSW)    151  ptly cldy   none
     22:00    54    44      5   199  (SSW)    148  ptly cldy   none
     23:00    53    44      6   217   (SW)    159 mstly clr    none
     00:00    52    47      6   190    (S)    201 mstly clr   humid
     01:00    52    48      6   190    (S)        mstly clr   humid
     02:00    52    48      6   191    (S)        mstly clr   humid
     03:00    52    49      5   198  (SSW)           clear    humid
     04:00    51    49      6   189    (S)           clear    humid
     05:00    51    49      5   193  (SSW)           clear    humid
     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 STATUS
    Telescope drives operational. Current TCC version: 1.2.4
    Current TUI version: 2.6.0