Subject: 3.5m Night Log 20060520
Date: Sun, 21 May 2006 06:07:51 -0600 (MDT)
From: bketzeba@apo.nmsu.edu (Bill Ketzeback)
                        Apache Point Observatory
                        3.5m Telescope Night Log
                         Saturday, May 20, 2006
                                                         ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START FINISH
 --------------------------------------------------------------------
 S.Majewski      S.Majewski             DIS            19:00 01:00
 D.Spergel       S.Majewski             DIS,Echelle    01:00 05:45
  INST     SCHED(TWILIGHT)   WEATH     EQUIP     OBS     DAY  NOT USED
 I/ROW/DN    START FINISH   D    B    D    B    D    B   USE   D    B
 ----------------------------------------------------------------------
 DD03/O      21:00 01:00    0    0    0    0   4.0   0    0    0    0
 PU03/O      01:00 05:00    0    0    0   0.1  1.4  2.5   0    0    0
  note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
 Observing Specialist: B.Ketzeback
 Craig looked into the guiding problems we were seeing last night during the
 beginning of the night. Some of the effects (alot of bounce about a guide
 location and drifting guide stars) seemed to baffle us. For instance, guiding
 on a field star that was above and to the right of the boresight caused
 the guide star to repeatedly drift upwards. A field star to left and below
 the boresight seemed to cause the star to drift down in the frame. Guide on
 boresight appeared to work better tonight however still alot of bounce about
 the boresight could be seen. The remainder of the night went well, we switched
 to the echelle around 2am. A little after 3 the echelle slitviewer crashed
 so hard that a power cycle of the icc was required to bring it back to life.
 Clouds rolled in around 2am and by 4am were quite thick. It cleared again at
 the start of twilight. We had serious intermittant internet connectivity
 issues both night and tonight that added a bit of a challenge to observing.
                       ------- FAILURE LOG -------
  PROG   INST   FAILURE MODE     TIME
       (SEDFNVOG)    TI/SHU   START  FINISH  DESCRIPTION
 -----------------------------------------------------------------------
 PU03      E          I/H     03:10  03:15   ecamera icc crashed, power cycled
                ---------------- FOCUS LOG ---------------
                                        Air/Truss   Wind
 Time   Instrument   Focus     Az  El    Temp-C    Dir MPH  filt  FWHM
 ---------------------------------------------------------------------
 20:54 dis-slit    -175(1141)  161 76  17.1/19.7  305  7    -     1.06
 01:54 Echelle     6(358)      223 81  16.2/16.0  268  4    nd2   0.77
                ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:01    66    28      0   247  (WSW)   1023   clear     none
     17:01    71    30     12   260  (W)     1234   clear     none
     18:01    69    26     13   276  (W)     1077   clear     none
     19:01    68    25      9   264  (W)     1247   clear     none
     20:01    63    24      7   268  (W)     1241   clear     none
     21:01    63    24      6   278  (W)     1237   clear     none
     22:01    60    25      1    31  (NNE)   1400   clear     none
     23:01    62    25      6   328  (NNW)   1309   clear     none
     00:01    62    24      4   354  (N)     1397   clear     none
     01:01    61    24      2   259  (W)     1450   clear     none
     02:01    61    22      3   264  (W)     1364  prtly cldy none
     03:01    62    20      2   271  (W)     1336  prtly cldy none
     04:01    62    21      5   338  (NNW)   1218  mstly cldy none
     05:01    57    20      6    21  (NNE)   1476  mstly clr  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: 2.8.4
      Current TUI version: TUI 1.1