Date: Mon, 20 Apr 2009 12:14:33 -0000 (UTC)
Subject: 3.5m Night Log 20090418
From: "Gabrelle Saurage"
                       Apache Point Observatory
                        3.5m Telescope Night Log
                        Sunday, April 19, 2009
                                                          ACTUAL
 ASTRONOMER     OBSERVER(S)               INSTRUMENT   START  FINISH
-------------------------------------------------------------------
 C.Churchill    G.Kacprzak                DIS          20:15  01:02
 C.Churchill    J.Evans, E.Klimek         SPICAM       01:10  06:20
   INST     SCHED(TWILIGHT) WEATH     EQUIP      OBS     DAY  NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B   USE   D    B
----------------------------------------------------------------------
 NM05/R     20:32  01:05    0    0    0    0   4.6   0    0    0    0
 NM09/R     01:05  05:32    0    0    0    0   2.6  1.9   0    0    0
  note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
 Observing Specialist: G.Saurage
AzVeloScale: 578.2, 577.3; 577.8 (changed to 578)
During first half using the DIS slitviewer, the second time I tried to focus (at
21:20) I struggled with the focus script. The stars seemed to be tracking away too
fast for a sweep to complete. We were pointed near Az 165, Alt 64, Rot 27 during
this process. I had to focus manually while guiding to get consistent image quality
data. I'm not completely convinced this was a software problem as I did not have
this problem before. Maybe tracking?
Other than that, clear all night with moderate to good seeing (subarc with SPICAM,
using the Autofocus script all second half).
Weather status stopped reporting wind data after 04:00.
                       ------- 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
--------------------------------------------------------------------------
 20:24 dis-slit   165(186) 141  67   4.9  8.6  6.8  7.6  5.5           1.58
 21:20 dis-slit    85(-16) 168  65   4.2  6.0  5.4  4.8  4.4           1.43
 01:22 SPICAM     111(158) 111  67   5.2  4.0  4.6  3.0  4.3   SDSS g  0.84
                ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    -------------------------------------------------------------------
     16:00    49    20      8   316   (NW)    436    clear     none
     17:00    48    19     14   302  (WNW)    368    clear     none
     18:00    48    22      7   275    (W)    304    clear     none
     19:00    47    21      9   259    (W)    340    clear     none
     20:00    42    25      8    50   (NE)    305    clear     none
     21:00    40    25     11    82    (E)    256    clear     none
     22:00    39    24     16    78  (ENE)    274    clear     none
     23:00    38    24     14    81    (E)    298    clear     none
     00:00    40    22      8    39   (NE)    320    clear     none
     01:00    41    22      1   333  (NNW)    344    clear     none
     02:00    41    22      6   344  (NNW)    313    clear     none
     03:00    41    22      6   306   (NW)    298    clear     none
     04:00    40    22      2   243  (WSW)    315    clear     none
     05:00    39    23                  ??    320    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