Date: Thu, 29 Jan 2009 06:47:11 -0700 (MST)
Subject: 3.5m Night Log 20090128
From: "Jack Dembicky"
                        Apache Point Observatory
                        3.5m Telescope Night Log
                     Wednsday, January 28, 2009
                                                         ACTUAL
 ASTRONOMER     OBSERVER(S)             INSTRUMENT    START  FINISH
 -------------------------------------------------------------------
 S.Anderson     A.Mukadam               Agile         17:00   06:50
   INST     SCHED(TWILIGHT) WEATH     EQUIP      OBS     DAY  NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B   USE   D    B
 ---------------------------------------------------------------------
 UW06/R     18:28  06:04    0    0    0    0  10.0  1.6   0    0    0
  note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
 Observing Specialist: J.Dembicky
 Az vel scale measured  579.9 was 577.0 changed 579.0
 Alt Vel scale measured -604.3 was -606.0 changed -605.0
Pointing correction (start of night)
XTILT +40  YTILT -98
Much better seeing tonight.
Anjum reported that her images seemed to drift a little (5 pixels) while we were guiding.  The NA2
guider seemed pretty well locked onto the star and I couldn't see much drift, when she reported it
to me, in the last 100 guider images.  We were tracking on her object almost all night and I did
see some larger errors when I did a dump of the alt magna sensors, but nothing that large, maybe
+/- 20 arc sec max. These size errors were across several magna sensors though (when we moved
later).  Puzzling while the guide star seemed to not move in the guide frame but she saw movement
in the instrument.  We did have autofocus running tongiht as well.
                       ------- 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
 -----------------------------------------------------------------------
 18:19 AGILE   -50( -733)  -8  62  -0.5  0.3 -0.0 -0.5 -0.5   BG40  1.06
 18:20 NA2gdr 2048(11000)  -8 62 -0.4 0.3 -0.0 -0.5 -0.5 clear  0.90
                 ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    -------------------------------------------------------------------
     16:00    32     5     14   332  (NNW)    904    clear     none
     17:00    31     4     11   346  (NNW)    804    clear     none
     18:00    31     4     15     6    (N)    725    clear     none
     19:00    31     4     14   339  (NNW)    708    clear     none
     20:00    29     3     20    13  (NNE)    625    clear     none
     21:00    30     5     24     8    (N)    489    clear     none
     22:00    28     5      9     4    (N)    488    clear     none
     23:00    27     5     13     9    (N)    648    clear     none
     00:00    26     8     17    16  (NNE)    794    clear     none
     01:00    26     9     20    19  (NNE)    518    clear     none
     02:00    26     8     18    32  (NNE)    560    clear     none
     03:00    27     5     29    20  (NNE)    344    clear     none
     04:00    29    -4     23    27  (NNE)    723    clear     none
     05:00    29   -12     22    15  (NNE)    613    clear     none
     06:00    30   -16     12    22  (NNE)    464    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
      Current TUI version: TUI 1.5.1