From: Russet McMillan
Subject: 3.5m Night Log 20050406
Date: Thu,  7 Apr 2005 06:12:11 -0600 (MDT)
                        Apache Point Observatory
                        3.5m Telescope Night Log
                        Wednesday, April 6, 2005
                                                         ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START FINISH
 --------------------------------------------------------------------
 G.Stringfellow  G.Stringfellow,        Echelle        18:58  21:30
                 P.McGehee
 D.York          R.McMillan             DIS            21:30  23:00
 B.Keeney        B.Keeney               DIS            23:00  02:25
 J.Tumlinson     J.Tumlinson            DIS            02:30  05:50
  INST     SCHED(TWILIGHT)   WEATH     EQUIP     OBS     DAY  NOT USED
 I/RO/DN     START FINISH   D    B    D    B    D    B   USE   D    B
 ----------------------------------------------------------------------
 CU03/R      20:22  21:22   0    0    0    0   1.0   0    0    0    0
 DD01/O      21:22  23:00   0    0    0    0   1.6   0    0    0    0
 CU02/R      23:00  01:00   0    0    0    0   2.0   0    0    0    0
 UC02/R      01:00  05:49   0    0    0    0   4.8   0    0    0    0
  note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
 1st half Observing Specialist: J.Dembicky
 A few thin cirrus at sunset but they mostly dissapated (although the
 cloud camera showed that there was still thin stuff passing overhead).
 Pointing was a little off on the Echelle, I did a correction to it before
 we got started with science on the first program.  Everything ran fine
 otherwise with no problems 1st half.
 2nd half Observing Specialist: R.McMillan
 When second half started, we had somewhat thicker cirrus lurking
 around.  The scheduled program's targets were too faint, and their
 bright-target backup program was actually a continuation of CU02, so
 they kept going with the same setup and observer until the clouds
 thinned out considerably around 02:30.  I left the time accounted as
 UC02.
 Seeing was poor first half but improved to sub-arcsecond around
 03:00.  Everything worked perfectly.
                      ------- FAILURE LOG -------
  PROG   INST   FAILURE MODE     TIME
      (SEGDFNVO)    TI/SHU   START  FINISH  DESCRIPTION
 -----------------------------------------------------------------------
                 ---------------- FOCUS LOG ---------------
                                        Air/Truss   Wind
 Time   Instrument   Focus     Az  El    Temp-C    Dir MPH  filt  FWHM
 ---------------------------------------------------------------------
 20:06  Echelle      -18(415) -73  39   5.5/8.0    149  12  ND3   1.56
 21:44  DISslit    -125(1035) -57  25   3.3/4.7     79  13  none  2.0
 21:49  NA2gdr   -1500(29500) -58  24   3.2/4.6     82  14    R   1.3
 23:13  DISslit      -50(893) 273  51   2.8/2.9     79  19  none  2.5
 01:21 DISslit     -25(839)    355 64  1.7/1.7    76   12   -     1.56
                ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
     ------------------------------------------------------------------
     17:01    51    18      6   235  (SW)    1224  Lt. Cirrus   none
     18:01    47    16      4   273  (W)     1207  Lt. Cirrus   none
     19:01    45    17      5   191  (S)     1220  Lt. Cirrus   none
     20:01    42    17     10   144  (SE)    1235  Lt. Cirrus   none
     21:01    40    20     11   128  (SE)    1374  Lt. Cirrus   none
     22:01    37    14     19    75  (ENE)   1283  Lt. Cirrus   none
     23:01    37    11     18    70  (ENE)   1139  Lt. Cirrus   none
     00:01    36    12     16    76  (ENE)   1196  Lt. Cirrus   none
     01:01    35    14     13    77  (ENE)   1169  Lt. Cirrus   none
     02:01    38    18      1    45  (NE)    1268   cirrus      none
     03:01    40    18      0   311  (NW)    1205  mstly clr    none
     04:01    40    18      0   346  (NNW)   1356   cirrus      none
     05:01    40    17      2   301  (WNW)   1315  mstly clr    none
     06:01    40    17      0   255  (WSW)   1225  mstly 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.
     Note: The Tower Dust counter appears to be down at this time
                              TELESCOPE STATUS
      Telescope drives operational. Current Remark version: 2.85b
      Current TCC version: 2.7.2  Current TUI version: TUI 0.94