Date: Thu, 6 Aug 2009 05:55:28 -0600 (MDT)
Subject: 3.5m Night Log 20090805
From: "Jack Dembicky"
                        Apache Point Observatory
                        3.5m Telescope Night Log
                       Wednesday, August 05, 2009
                                                         ACTUAL
 ASTRONOMER     OBSERVER(S)             INSTRUMENT    START  FINISH
 -------------------------------------------------------------------
 A.Kowalski     A.Kowalski              DIS           20:25  01:06
 G.Wallerstein  J.Hughes                SPIcam        01:06  02:40
                                                      03:20  06:10
   INST     SCHED(TWILIGHT) WEATH     EQUIP      OBS     DAY  NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B   USE   D    B
 ---------------------------------------------------------------------
 UW10/R     20:58  01:06    0    0    0    0    0   4.1   0    0    0
 UW08/R     01:06  06:00    0   0.7   0    0    0   3.6   0    0    0
  note: scheduled times listed include instrument chanyes, some ge time
                ------------- ACTIVITY LOG --------------
 Observing Specialist: J.Dembicky
Drive slipped
05:00:00 Telescope started drifting and moved several arc sec in Altitude over the next couple
mins.  See guide images d0252 thru d0258.  Private email sent to Fritz about problem.
Oscillation in Az Dataq (didn't see much motion/slippage on slitview images)
06:58:37 Dataq Az oscillating badly (high freq oscillation, largish amplitude 1v p-p).  Alt 80.5,
az 206.1
07:00:35 it quit oscillating on its own.  Alt 80.4 Az 207.7
No problems otherwise.
                ------------- ACTIVITY 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
 -----------------------------------------------------------------------
 20:50 dis-slit   543( 1205) 270  34  17.4 20.8 20.4 19.4 19.0   --  1.50
 01:28 SPICAM   213(  809) 239  41  14.7 14.6 14.8 14.0 14.4   R  1.36
 01:29 NA2gdr   759(30759) 239  41  14.7 14.6 14.8 14.0 14.4   clear  1.28
                 ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    -------------------------------------------------------------------
     16:00    77    37      7   178    (S)   1573    clear     none
     17:00    71    41     10   101    (E)   2201    clear     none
     18:00    71    44     14   169    (S)   2767    clear     none
     19:00    70    46      5   111  (ESE)   3106 mstly clr    none
     20:00    65    44     18   137   (SE)   3214  ptly cldy   none
     21:00    63    40     14   132   (SE)   2515  ptly cldy   none
     22:00    62    40     19   127   (SE)   2329  ptly cldy   none
     23:00    60    43     17   125   (SE)   2710  ptly cldy   none
     00:00    59    44     17   116  (ESE)   2861  ptly cldy   none
     01:00    58    44     18   148  (SSE)   3083  ptly cldy   none
     02:00    57    44     16   143   (SE)   2870  ptly cldy   none
     03:00    56    45     13   168  (SSE)   2968  ptly cldy   none
     04:00    58    45     15   176    (S)   3075  ptly cldy   none
     05:00    57    46     14   136   (SE)   3133  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: 2.10.0
      Current TUI version: TUI 1.6