Date: Wed, 26 May 2010 05:52:06 -0600 (MDT)
Subject: 3.5m Night Log 20100525
From: "Jack Dembicky"
                        Apache Point Observatory
                        3.5m Telescope Night Log
                         Tuesday May 25, 2010
                                                         ACTUAL
 ASTRONOMER     OBSERVER(S)             INSTRUMENT    START  FINISH
 -------------------------------------------------------------------
 S.Kent         B.Yanny, B.Willett      DIS           19:15  01:02
 S.Schmidt      S.Schmidt               TSPEC         01:15  06:10
  PROG        SCHEDULED      WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH    D    B    D    B    D    B    D    B
 ------------------------------------------------------------------
 UC03/R     20:11  01:10     0    0    0    0    0   5.0   0    0
 UW06/R     01:10  05:49     0    0    0    0   1.1  3.6   0    0
   note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
 Observing Specialist: J.Dembicky
Spicam temp at start of night K - I checked but forgot what temp, it was fine.
Spicam temp at inst change 170.2K
Spicam temp at end of night 169.6K
I got a ringing when I released the stop button then did an axis init (It did this twice as I
pushed the stop button in/out and did another axis init).  The telescope was at 104,20. I had not
yet slewed the telescope from park position. The ringing went away as soon as I moved the alt/az.
Nick said they may have accidently moved one of the drive boxes today and pointing may be off.  I
checked pointing with a couple of stars and things seeme fine.  I also did a tertpoint correction
and the adjustment values were small.
I was able to get the drives to ring at -85,72 during the instrument swap.  I pressed a stop
button but did not issue and axis stop.  When I released the stop button the axis started to ring.
 Axis stop stopped the ringing and it did not come back when I did an axis init.  The drive was
not ringing when the slew finished and I initially pressed the axis stop.  This was around UT
07:15 or so.
No time loss due to telescope problems.
                ------------- FAILURE LOG --------------
  PROG   INST   FAILURE MODE     TIME
      (STEDFNVOG)   TI/SHU    START  FINISH  DESCRIPTION
 ----------------------------------------------------------------------
               ---------------- FOCUS LOG ---------------
 Time  Instrument  Focus    Az  El  Temp Strc Prim  Sec  Air  filt FWHM
 -----------------------------------------------------------------------
 20:33 dis-slit   149(  524)  44  70  12.4 15.8 14.1 14.2 15.2   --  0.90
 01:22 TSPEC   136(  652)   8  49  12.2 12.2 12.5 11.3 12.0   Ks  1.40
                 ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    -------------------------------------------------------------------
     18:00    65    22      8   220   (SW)   1437    clear     none
     19:00    61    21      9   255  (WSW)   1527    clear     none
     20:00    55    20      8   246  (WSW)   1701    clear     none
     21:00    54    18     10   233   (SW)   1582    clear     none
     22:00    54    18      2   198  (SSW)   1484    clear     none
     23:00    54    17      1   241  (WSW)   1458    clear     none
     00:00    56    15      6   238  (WSW)   1195    clear     none
     01:00    54    16      6   185    (S)   1280    clear     none
     02:00    52    16     10   142   (SE)   1474    clear     none
     03:00    53    19     13   148  (SSE)   1626    clear     none
     04:00    53    33     15   146   (SE)   1634    clear     none
     05:00    53    32     15   134   (SE)   1682    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: 2.11.1
      Current TUI version: 1.7.2