Date: Sat, 24 Apr 2004 06:33:27 -0600 (MDT)
From: Jack Dembicky
Subject: 3.5m Night Log 20040423
                          Apache Point Observatory
                          3.5m Telescope Night Log
                           Friday, April 23, 2004
                                                            ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START FINISH
 --------------------------------------------------------------------
 H.Osborne       H.Osborne              DIS            22:20 01:00
 A.West          A.West                 SPIcam         01:00 06:20
  INST        SCHEDULED      WEATH     EQUIP     OBS     DAY  NOT USED
 I/RO/DN     START FINISH   D    B    D    B    D    B   USE   D    B
 ---------------------------------------------------------------------
 NM03/R      20:36  01:00   0   1.7   0    0   1.1  1.6   0    0    0
 UW02/R      01:00  05:26   0    0    0    0   4.4   0    0    0    0
  note: scheduled times listed include instrument change time
                 ------------- ACTIVITY LOG --------------
 Observing Specialist: J.Dembicky
 I did not open until around 22:15 due to clouds.
 The NA2guider ICC Mac locked up around 02:00, power cycled and rebooted
 brought it back to life.
 Clouds rolled in thick enough to interfere with the last couple of
 science images.  We closed up to take dome flats, but the clouds moved
 out, so we re-opened to get sky flats instead.
 Seeing was variable thru the night, ranging from just under 1 arc sec to
 around 2 arc sec (read off the NA2 guider).
                          ------- FAILURE LOG -------
  PROG   INST   FAILURE MODE     TIME
       (SEGDFVO)    TI/SHU   START  FINISH  DESCRIPTION
 -----------------------------------------------------------------------
                 ---------------- FOCUS LOG ---------------
                                         Air/Truss   Wind
 Time   Instrument   Focus     Az  El    Temp-C    Dir MPH  filt  FWHM
 ---------------------------------------------------------------------
 22:31  DISslit     -75(1017)  66  61    4.8/6.7   261  14  none  1.3
 22:36  Na2gdr    -351(46648)  65  62    4.7/6.6   243  17    R   1.4
 01:02  SPIcam       50(1149)  66  61    3.1/3.7   235   8    r'  1.0
 01:09  NA2gdr    2661(51661)  64  63    2.9/3.6   229   8  clear 1.1
                ------------- WEATHER LOG ----------------
                                  Wind                       Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
     ------------------------------------------------------------------
     16:01    52    16     18   205  (SSW)   1936   Clear     none
     17:01    48    10     13   241  (WSW)   1560   Mst. Clr  none
     18:01    50     7     13   194  (SSW)   1321   Pt. Cldy  none
     19:01    46     7     11   201  (SSW)   1154   Cloudy    none
     20:01    43     9     15   191  (S)     1467   Cloudy    none
     21:01    42    12      8   257  (WSW)   1292   Cloudy    none
     22:01    42    11     15   241  (WSW)   1301   Pt. Cldy  none
     23:01    40    11     18   263  (W)     1619   Pt. Cldy  none
     00:01    39    18      9   266  (W)     2885   Pt. Cldy  none
     01:01    38    17      6   245  (WSW)   2332   Pt. Cldy  none
     02:01    39    15     10   272  (W)     1657   Mst. Clr  none
     03:01    39    15     11   268  (W)     1530   Mst. Clr  none
     04:01    38    15     10   272  (W)     1304   Pt. Cldy  none
     05:01    36    17      8   267  (W)     1017   Pt. Cldy  none
     06:01    36    18      6   263  (W)     1001   Mst. 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 Remark version: 2.85b
     Current guide software version: guider v4.1b4
     Current TCC version: 2.7.2  Current TUI version: TUI-0.842