Subject: 3.5m Night Log 20190111
From: trudyk@apo.nmsu.edu
Date: Sat, 12 Jan 2019 14:11:18 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Friday, January 11, 2019
                                                           ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
--------------------------------------------------------------------
A.Riess           O.Fox                 TSpec          --:--   --:--
A.Evens           S.Linden,I.Yoon       NICFPS         05:50   06:58
   INST       SCHEDULED     WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B    D    B
 ----------------------------------------------------------------
JH08/R     17:25   00:10    1.7  5.1  0    0   0.0  0.0   0    0
UV03/R     00:10   06:58    5.7  0    0    0   1.1  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: T.Rudyk
We had high humididty and light snow at sunset, so we did not open. Humidity stayed high throughout the night. Around 4:00 humidity began to dip under thresholds, but there were addtional restrictions due to ice on the roof that kept us closed: namely, a warm mirror and winds > 15mph.
The mirror temperature and wind finally cooperated, and we opened. We stayed open until dawn.
The telescope was parked at 0,10 to facilitate snow and ice removal.
                    ------- 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
--------------------------------------------------------------------------
 05:59 NICFPS     552(  535)  -2  52  -5.1 -4.4 -0.8 -4.8 -3.7   MK-J  0.88
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    31    30     11   288  (WNW)         ptly cldy  humid
     17:00    28    27     14   309   (NW)         ptly cldy lt snow
     18:00    26    24     12   311   (NW)         ptly cldy  humid
     19:00    26    25     15   345  (NNW)         ptly cldy  humid
     20:00    25    24     15   314   (NW)        mstly cldy  humid
     21:00    24    23      9   334  (NNW)        mstly cldy  humid
     22:00    23    22     26    21  (NNE)        mstly cldy  humid
     23:00    23    22     11    31  (NNE)         ptly cldy  humid
     00:00    22    21     15    16  (NNE)         ptly cldy  humid
     01:00    22    21     20    22  (NNE)         ptly cldy  humid
     02:00    22    21     11    25  (NNE)         ptly cldy  humid
     03:00    22    20     15    48   (NE)         ptly cldy  humid
     04:00    22    18     15    53   (NE)        mstly clr   humid
     05:00    22    16      2    80    (E)           clear     none
     06:00    23    13      3   180    (S)           clear     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