Subject: 3.5m Night Log 20200114
From: mcmillan@apo.nmsu.edu
Date: Wed, 15 Jan 2020 11:32:26 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Tuesday, January 14, 2020
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
WY01  M.Brotherton      J.McLane
NA02  J.Bary            J.Bary
OU05  S.Bhatiani        S.Bhatiani
                         ACTUAL
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
WY01  TSPEC          17:25   18:58
NA02  ECHELLE        19:03   20:15
NA02  TSPEC          20:18   21:00
OU05  NICFPS         --:--   --:--
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
WY01/R      17:27  19:07    0    0    0    0   1.7  0.0   0    0
NA02/R      19:07  00:10   0.8  2.4   0    0   1.9  0.0   0    0
OU05/R      00:10  06:57    0   6.8   0    0   0.0  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: R.McMillan
High clouds at the start of the night got thicker over a few hours.  By midway through first half the observer wasn't able to do any planned science.  We tried taking some spectra of Betelgeuse but eventually even that was clouded out.  We waited for a while with mirror covers closed until radar appeared around 23:00, then I closed the dome.  Between the clouds and the radar we didn't have a chance of opening second half.
                    ------- 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
--------------------------------------------------------------------------
 17:38 tcamera    555(  847)  71  35   3.6  5.7  5.7  5.5  4.5   Ks  1.31
 19:07 ecamera    323( -604) -48  27   3.7  4.2  4.5  3.8  3.8   Clear  1.26
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    42    -3      5   264    (W)    165  ptly cldy   none
     17:00    41    -6     14   299  (WNW)    198  ptly cldy   none
     18:00    40    -5     10   262    (W)    193  ptly cldy   none
     19:00    38    -3      7   231   (SW)    219  ptly cldy   none
     20:00    37    -1     12   234   (SW)    271 mstly cldy   none
     21:00    39    -3     14   235   (SW)    139 mstly cldy   none
     22:00    39    -3     13   254  (WSW)    102   cloudy     none
     23:00    41    -3     19   248  (WSW)    122   cloudy   lt snow
     00:00    40    -3     14   264    (W)    171   cloudy     none
     01:00    40    -2     15   268    (W)    189   cloudy     none
     02:00    40     0     11   262    (W)    195   cloudy     none
     03:00    38     4     12   265    (W)    212   cloudy     none
     04:00    39     3     11   268    (W)    266   cloudy     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.
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Current HUB version: v20171231_01
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