Subject: 3.5m Night Log 20180510
From: trudyk@apo.nmsu.edu
Date: Fri, 11 May 2018 11:53:27 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Thursday, May 10, 2018
                                                           ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
--------------------------------------------------------------------
M.Skrutskie       R.Wilson and students    DIS            20:00   22:30
M.Skrutskie       R.Wilson and students    Tspec          22:45   01:01
P.Gaulme          M.Benbakoura             Echelle        01:04   05:45
   INST       SCHEDULED     WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B    D    B
 ----------------------------------------------------------------
UV03/R     20:00   01:10    0    0    0    0   5.2  0.0   0    0
NM08/R     01:10   05:59    0    0    0    0   2.8  2.1   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: T.Rudyk
Evening started mostly clear, some fast winds, but it died down before too much dust was kicked up. Seeing was good.  Sinusoidal noise was seen on the az_error strip on telemetry in various parts of the sky, varying from .5" to 1.5".  The wave only seemed to happen when guiding was engaged, and the amplitude seemed to scale with the period.
Other than that, no significant mishaps and the scope was open all night.
                    ------- 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
--------------------------------------------------------------------------
 20:21 dcamera    427( 1151)  70  57  17.6 20.0 20.2 20.8 18.2   -  1.14
 22:52 tcamera    505( 1271) 225  65  17.4 17.0 17.7 16.9 17.0   -  0.80
 01:10 ecamera    355(   35)  47  56  15.9 16.2 16.8 16.2 16.1   ND1  0.83
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    70    28     17   231   (SW)   1119 mstly clr    none
     17:00    70    26     20   278    (W)   1047 mstly clr    none
     18:00    70    25     18   267    (W)    869 mstly clr    none
     19:00    69    24     24   259    (W)    907 mstly clr    none
     20:00    65    21     16   261    (W)    970 mstly clr    none
     21:00    64    19     13   250  (WSW)    948    clear     none
     22:00    62    19     17   240  (WSW)    902    clear     none
     23:00    63    18     13   251  (WSW)    794    clear     none
     00:00    62    19     11   256  (WSW)    733    clear     none
     01:00    62    16     15   281    (W)    763    clear     none
     02:00    59    16     11   257  (WSW)    823    clear     none
     03:00    59    15     13   265    (W)    919    clear     none
     04:00    59    14     14   271    (W)   1028    clear     none
     05:00    57    15     13   262    (W)   1113    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