Subject: 3.5m Night Log 20210118
From: dembicky@apo.nmsu.edu
Date: Tue, 19 Jan 2021 12:45:16 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Monday, January 18, 2021
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
NA01  J.Bary            J.Bary
BY05  A.Mosenkov        A.Mosenkov, D.Bizyaev
                         ACTUAL
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
NA01  ECHELLE        --:--   --:--
BY05  ARCTIC         --:--   --:--
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
NA01/R      17:32  00:10   1.1  5.5   0    0    0    0    0    0
BY05/R      00:10  06:56   6.8   0    0    0    0    0    0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: J.Dembicky
The weather kept us closed all night.  Clouds at the start, then when the cold front hit, humidity shot over the limit.  Sky cleared towards the end but humidity kept us closed.
I left TSpec mounted, since it is requested as a backup instrument for tomorrow night.
We have 5 empty LN2 dewars on the 3.5m floor that need to be switched out.
                    ------- 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
--------------------------------------------------------------------------
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    44    -1     15   208  (SSW)    263 mstly cldy   none
     17:00    44    -2     14   201  (SSW)    362 mstly cldy   none
     18:00    41    -2     13   182    (S)    499   cloudy     none
     19:00    42     2      8   251  (WSW)    371   cloudy     none
     20:00    42     7     13   181    (S)    612   cloudy     none
     21:00    33    11      8    90    (E)   1092   cloudy     none
     22:00    30    16     14    86    (E)    717   cloudy   lt snow
     23:00    27    18     24    73  (ENE)    700   cloudy   lt snow
     00:00    28    17     13    96    (E)   1231   cloudy   lt snow
     01:00    28    18     10   135   (SE)    566   cloudy     none
     02:00    23    18     14    88    (E)          cloudy     none
     03:00    24    17     13    96    (E)    548 mstly cldy   none
     04:00    19    18     22    91    (E)         ptly cldy  humid
     05:00    18    17     22    78  (ENE)         ptly cldy  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 SOFTWARE  ----------
Current TCC version: 1.4.2
Current HUB version: v20171231_01
Current TUI version: 2.6.0