Date: Thu, 9 Sep 2004 06:57:52 -0600 (MDT)
From: John Barentine
Subject: 3.5m Night Log 20040908
                         Apache Point Observatory
                         3.5m Telescope Night Log
                       Wednesday, September 8, 2004
                                                          ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START FINISH
 --------------------------------------------------------------------
 N.Silvestri     N.Silvestri            DIS            20:00  00:50
 K.Covey         K.Covey                DIS            00:55  06:40
  INST        SCHEDULED      WEATH     EQUIP     OBS     DAY  NOT USED
 I/RO/DN     START FINISH   D    B    D    B    D    B   USE   D    B
 ---------------------------------------------------------------------
 UW03/R      20:12  01:00   0    0    0    0   4.8   0    0    0    0
 UW02/R      01:00  05:49   0    0    0    0   0.8  4.1   0    0    0
 note: scheduled times listed include instrument change time
                  ------------- ACTIVITY LOG --------------
 Observing Specialist: J.Barentine
 A rather sedate night.  Opened at 20:30 after Nicole finished her DIS
cals with the dome dark.  Shortly after sunset, in fine (and reliable)
fashion, the wind slowed to a crawl and then reversed direction from west
to east.  For most of the the night it was only a few MPH coming from the
N to NE.  Consequently, seeing was poor throughout, with a few calm
periods but otherwise highly variable.  Stayed open late so Kevin could
get twilight sky flats with DIS.
                      ------- 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
 ---------------------------------------------------------------------
 20:42 DISslit     -200(1271)  336 58  11.2/15.4  46   5    -     1.41
 20:52 NA2gdr      -947(30052) 334 57  10.8/15.1  51   10   R     2.57
 23:49 NA2gdr      -5151(25848)319 38  10.6/10.6  23   3    R     1.09
 01:45 DISslit     -25(1241)   157 55  10.9/10.5  45   5    -     1.48
                ------------- WEATHER LOG ----------------
                                  Wind                       Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
     ------------------------------------------------------------------
     16:01    63    37     11   270  (W)      692  MstlyClr    none
     17:01    63    37     12   245  (WSW)    749  MstlyClr    none
     18:01    62    37     11   216  (SW)     689  MstlyClr    none
     19:01    57    37      7   236  (SW)     624  MstlyClr    none
     20:01    53    34      1   277  (W)      667  MstlyClr    none
     21:01    51    35     11    63  (ENE)    620  MstlyClr    none
     22:01    50    34      8    81  (E)      651  MstlyClr    none
     23:01    51    35      6    53  (NE)     736  MstlyClr    none
     00:01    52    35      4    26  (NNE)    624  MstlyClr    none
     01:01    52    35      9    22  (NNE)    659  MstlyClr    none
     02:01    51    35     10   359  (N)      645  MstlyClr    none
     03:01    51    35      4   353  (N)      659  MstlyClr    none
     04:01    50    35      2    14  (NNE)    630  MstlyClr    none
     05:01    50    34     13    35  (NE)     641  MstlyClr    none
     06:01    50    34     13    80  (E)      655  MstlyClr    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 TCC version: 2.7.2  Current TUI version: TUI 90b4