Subject: 3.5m Night Log 20190921
From: decolib@apo.nmsu.edu
Date: Sun, 22 Sep 2019 12:52:02 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Saturday, September 21, 2019
                                                           ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
--------------------------------------------------------------------
L.Hebb            L.Hebb                Echelle        --:--   --:--
S.Lepine          N.Hejazi              ECHELLE        --:--   --:--
T.Murphy          R.McMillan            APOLLO         06:15   06:44
   INST       SCHEDULED     WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B    D    B
 ----------------------------------------------------------------
NA01/R     19:10   01:10   4.8  1.2   0    0   0.0  0.0   0    0
GS03/R     01:10   05:43    0   4.6   0    0   0.0  0.0   0    0
AP01/R     05:43   06:43    0   0.5   0    0   0.0  0.5   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: D.DeColibus
Overcast skies and light rain in the afternoon.
At about 5:30 PM I went upstairs to begin checkout and I had to reset the DIS ion pump controller.
Despite periods of tantalizingly thin clouds, the remnants of Hurricane Lorena kept us closed with the threat of rain on the radar and thick clouds the rest of the time. Although the rain threat and the clouds eventually dissipated, they did so as the humidity rose- and by 3 AM, it was too humid to open.
We did not open until 6:15 AM, when the humidity dropped low enough to open for APOLLO.
                    ------- 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
--------------------------------------------------------------------------
 06:18 APOLLO     500( 1543)  55  73   9.9  9.6 10.1  9.5  9.5   530  1.50
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    54    42      7   249  (WSW)    180   cloudy   lt rain
     17:00    53    43      7   264    (W)    178   cloudy     none
     18:00    51    45     10   235   (SW)    159   cloudy     none
     19:00    52    42      8   253  (WSW)    157   cloudy     none
     20:00    51    44      9   235   (SW)    156 mstly cldy   none
     21:00    51    43      7   203  (SSW)    201 mstly cldy   none
     22:00    51    43     11   226   (SW)    198 mstly cldy   none
     23:00    51    44      8   235   (SW)    196 mstly cldy   none
     00:00    52    42      9   264    (W)    282 mstly cldy   none
     01:00    51    43      5   265    (W)    233 mstly cldy   none
     02:00    50    45      9   271    (W)    194   cloudy    humid
     03:00    50    46      6   271    (W)        mstly cldy  humid
     04:00    50    45     11   301  (WNW)        mstly clr   humid
     05:00    50    47     11   283  (WNW)        mstly clr   humid
     06:00    50    46      7   305   (NW)        mstly clr   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