Subject: 3.5m Night Log 20090709
Date: Fri, 10 Jul 2009 13:18:41 +0000 (UTC)
From: bketzeba@apo.nmsu.edu
                        Apache Point Observatory
                        3.5m Telescope Night Log
                         Thursday, July 9, 2009
                                                         ACTUAL
 ASTRONOMER      OBSERVER(S)         INSTRUMENT       START  FINISH
 ------------------------------------------------------------------
 M.Klaene        B.Ketzeback         Na2 Guider       03:00  05:00
   INST     SCHED(TWILIGHT) WEATH     EQUIP      OBS     DAY  NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B   USE   D    B
 ----------------------------------------------------------------------
 EN01/W     21:17  05:01   0.4  5.3   0    0    0   2.0   0    0    0
 note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
 Observing Specialist: B.Ketzeback
 One of those nights when the weather was very borderline. Partly to
 mostly clear skies with radar returns headed towards the site at
 the beginning of the night. Then rain and overcast skies but clear
 skies for the majority of Otero County. There was several times
 it looked like I could open but later was glad I did not attempt to.
 While I waited for the skies to clear I ran an in dome pointing model
 and then several in dome tracking tests at various places around the
 skies to give Fritz lots of metrology at various tracking speeds and
 directions to look at. The tracking oscillations that I saw last night
 were not visible tonight.
 At 0300 the skies were clear enough to open. I ran a pointing model
 on the sky for the last 2 hours of the night. The error in the model
 was higher than I would like so I did not implement it.
 I installed the pinhole in agile but did not get any of the scattered
 light measurements.
                       ------- 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
 --------------------------------------------------------------------------
 03:21 GUIDER   434( 1121) 217  80  17.4 17.1 17.3 16.7 16.9   R+nd2  1.04
                ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    -------------------------------------------------------------------
     16:00    66    49     19   131   (SE)   1302 mstly cldy lt rain
     17:00    72    48      6   196  (SSW)   1235  ptly cldy   none
     18:00    71    47     10   211  (SSW)    989   cloudy     none
     19:00    68    48      6   183    (S)   1089   cloudy     none
     20:00    67    47     17   146   (SE)   1079 mstly cldy   none
     21:00    66    46     16   146   (SE)   1033  ptly cldy   none
     22:00    66    42     17   159  (SSE)   1010 mstly cldy   rain
     23:00    61    42     23   129   (SE)    991   cloudy     rain
     00:00    64    36     14   173    (S)   1268   cloudy   lt rain
     01:00    65    34     16   176    (S)   1276   cloudy     none
     02:00    65    35     24   164  (SSE)   1397  ptly cldy   none
     03:00    63    36     21   198  (SSW)   1489    clear     none
     04:00    62    35     17   180    (S)   1784    clear     none
     05:00    63    35     12   183    (S)   1923 mstly clr    none
     06:00    62    38     20   176    (S)   2551    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: 2.10.0