Subject: 3.5m Night Log 20190427
From: cgray@apo.nmsu.edu
Date: Sun, 28 Apr 2019 12:48:17 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Saturday, April 27, 2019
                                                           ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
--------------------------------------------------------------------
M.Prescott        M.Prescott            ARCTIC         19:51   01:04
S.Lepine          N.Hejazi              ECHELLE        01:08   06:00
   INST       SCHEDULED     WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B    D    B
 ----------------------------------------------------------------
NM05/R     19:51   01:10    0    0    0    0   5.3  0.0   0    0
GS02/R     01:10   06:11    0    0    0    0   1.9  3.1   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: C.Gray
The night started out clear with some pollen, but I thought it wasn't bad enough to stay closed. Seeing was good all night, though we did have some high haze move in around 1:00 and stay until close.
At some point while switching between filters for NM05, the filter wheel became offset.  I homed the wheel and I don't believe we had any other issues.
                    ------- 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
--------------------------------------------------------------------------
 19:13 arctic   522( 1341) 132  73  13.8 15.1 15.4 14.6 13.5   NMSU-3250  1.16
 00:12 ecamera    528(  106) 191  36  12.6 11.9 12.5 12.0 12.2   Clear  1.06
 02:16 ecamera    538(  107) 191  30  11.9 11.7 12.2 11.6 11.8   Clear  1.22
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    62    22     17   300  (WNW)    407    clear     none
     17:00    63    20     16   239  (WSW)    404    clear     none
     18:00    61    19     15   257  (WSW)    420    clear     none
     19:00    60    20     16   225   (SW)    413    clear     none
     20:00    56    16     14   249  (WSW)    565    clear     none
     21:00    55    14     19   255  (WSW)    516    clear     none
     22:00    55    14     13   256  (WSW)    538    clear     none
     23:00    55    14     13   269    (W)    536    clear     none
     00:00    55    13     14   288  (WNW)    581    clear     none
     01:00    54    15     15   285  (WNW)    598 mstly clr    none
     02:00    54    15     17   285  (WNW)    554 mstly clr    none
     03:00    54    16     14   300  (WNW)    551 mstly clr    none
     04:00    53    17     18   301  (WNW)    595 mstly clr    none
     05:00    53    16     18   303  (WNW)    722 mstly clr    none
     06:00    53    17     14   294  (WNW)    654 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 STATUS
    Telescope drives operational. Current TCC version: 1.2.4
    Current TUI version: 2.6.0