Subject: 3.5m Night Log 20190215
From: mcmillan@apo.nmsu.edu
Date: Sat, 16 Feb 2019 13:00:45 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Friday, February 15, 2019
                                                           ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
--------------------------------------------------------------------
T.Murphy          R.McMillan            APOLLO         17:55   19:00
B.Brown           A.Aarnio              ECHELLE        19:03   22:30
W.Zheng           W.Zheng               TRIPLESPEC     --:--   --:--
   INST       SCHEDULED     WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B    D    B
 ----------------------------------------------------------------
AP01/R     17:57   18:57    0    0    0    0   0.0  1.0   0    0
CU06/R     18:57   00:10    0   1.7   0    0   0.0  3.5   0    0
JH10/R     00:10   06:37   2.4  4.1   0    0   0.0  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: R.McMillan
We had high thin clouds during first half, with moderate to poor seeing.  The first two programs were able to get some data for a few hours.  Gradually the clouds got thicker until we closed, and during second half there were also some periods of high humidity but never any openings in the clouds.
                    ------- 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
--------------------------------------------------------------------------
 18:06 APOLLO     600( 1480)  78  48   3.1  5.4  5.7  5.4  3.8   530  2.00
 19:14 ecamera    589( -374) 186  72   2.9  3.8  4.2  3.4  2.9   Clr  1.60
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    41    32     19   273    (W)        mstly cldy   none
     17:00    42    32     17   260    (W)    436  ptly cldy   none
     18:00    38    31     15   265    (W)    275  ptly cldy   none
     19:00    37    31     19   264    (W)         ptly cldy   none
     20:00    37    27     14   264    (W)    316  ptly cldy   none
     21:00    38    28     20   264    (W)    235  ptly cldy   none
     22:00    37    29     13   264    (W)    269 mstly cldy   none
     23:00    37    30     14   222   (SW)          cloudy     none
     00:00    37    29     19   267    (W)          cloudy     none
     01:00    37    28     16   265    (W)          cloudy     none
     02:00    35    31     18   258  (WSW)          cloudy    humid
     03:00    34    22     24   249  (WSW)          cloudy     none
     04:00    33    30     14   235   (SW)          cloudy    humid
     05:00    32    26     17   225   (SW)        mstly cldy   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