Date: Sun, 16 Jun 2013 11:29:19 -0000 (UTC)
Subject: 3.5m Night Log 20130615
From: "Alysha Shugart"
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Saturday, June 15, 2013
                                                           ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
--------------------------------------------------------------------
T.Murphy          R.McMillan            APOLLO         --:--   --:--
N.Hunt-Walker     N.Hunt-Walker         DIS            20:53   22:08
A.Elizabeth       M.Morris              TSPEC          03:59   05:30
   INST       SCHEDULED     WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B    D    B
 ----------------------------------------------------------------
UW13/R     20:22   20:53    0    0    0    0   0.0  0.0   0   0.5
UW05/R     20:53   01:10   0.4  2.7   0   0.6  0.0  0.6   0    0
JH05/R     01:10   05:46    2.8  0    0    0   1.8  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: A.Shugart
There was a communication error between UW13, which was canceled, and
UW05. That caused the late start for UW05. I kept the time for APOLLO, and
listed it at "not used".
During test slews, I got another az error. I opened the cabinet as soon as
I was informed, and hoped that would do something.
The PMSS was not recording, so during test slews I only monitored the
strip charts. I relied on Russet's instructions to power cycle the PMSS in
the box mounted near NA2. I did not however, clarfy where to power cycle
the PMSS. I turned off the power strip in the box at 01:30 UT, waited 30
seconds, and turned it on again. PMSS was still not found.
As soon as UW05 got on sky, I began seeing error messages from the
secondary mirror. Not finding anything in the wiki, I called Russet for
assistance. It was completely lost, and unrespnsive to focus adjustments.
From discovery to solution, Russet homes the secondary within 30 minutes,
and we got back on sky quickly afterwards. No more errors.
We found that turning off the power switch confused the secondary, for
which I am responsible. I apologize for not clarifying the correct power
source to disable. I will confirm the proper procedure and alert Fritz,
Jon, and Ed, and update the 3.5 m wiki to avoid confusion in the future.
Radar and lightning closed us at 22:08. During this time, UW05 took cals,
and noticed that "the strip of illumination is slanting up and to the
right," and Russet pointed out: "interesting thing is the blue side has a
slant too, but only by 3 rows over the width of the chip". We decided to
make a new slit mask for the 1.5 chip. Luckily, this happened while we
were closed for weather, so no science was lost.
The weather kept us closed until 04:00, and I finally opened hoping to
salvage some of the night. 05:30
                    ------- FAILURE LOG -------
PROG   INST   FAILURE MODE     TIME
    (SEDFNVOG)   TI/SHU    START  FINISH  DESCRIPTION
----------------------------------------------------------------------
UW05   DIS       T/H      20:55  21:30    secondary mirror lost, had to home
            ---------------- FOCUS LOG ---------------
Time  Instrument  Focus     Az  El  Temp Strc Prim  Sec  Air  filt  FWHM
--------------------------------------------------------------------------
21:28 dis-slit   231(  529) 246  81  17.3 19.6 19.3 19.3 17.2   --  1.26
04:05 TSPEC   350(  637) 196  54  15.2 15.2 17.5 15.3 14.8   --  3.18
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    65    43     14    64  (ENE)   2109    clear     none
     17:00    74    43      7   175    (S)   2367 mstly clr    none
     18:00    73    36     11   232   (SW)   2092 mstly clr    none
     19:00    71    38     14   267    (W)   2017 mstly clr    none
     20:00    64    44     11   145   (SE)   1677  ptly cldy   none
     21:00    62    45     12   127   (SE)   1455 mstly clr    none
     22:00    64    43      9   142   (SE)   1715  ptly cldy   none
     23:00    62    42      3   120  (ESE)   2301 mstly cldy   none
     00:00    55    45     22    22  (NNE)   3456 mstly cldy lt rain
     01:00    61    39     13   236   (SW)   2572   cloudy   lt rain
     02:00    61    40      7   199  (SSW)   1690  ptly cldy   none
     03:00    60    41      8   190    (S)   2389  ptly cldy   none
     04:00    60    41      4   218   (SW)   3041 mstly cldy   none
     05:00    59    41      2   225   (SW)   3581  ptly 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: 2.15.0
    Current TUI version: 2.0.0