From: Russet McMillan
Subject: 3.5m Night Log 20071003
Date: Thu,  4 Oct 2007 07:23:56 -0600 (MDT)
                        Apache Point Observatory
                        3.5m Telescope Night Log
                       Tuesday, October 03, 2007
                                                         ACTUAL
 ASTRONOMER     OBSERVER(S)              INSTRUMENT    START  FINISH
 -------------------------------------------------------------------
 B.McNamara     R.McMillan,T.Harrison    CorMASS       19:20  20:20
 J.Holtzman     D.McGinnis               DIS           20:40  21:50
 J.Carlin       J.Miller                 DIS           02:10  03:20
                                                       04:10  05:25
 T.Murphy       R.McMillan               Apollo        05:30  06:40
   INST     SCHED(TWILIGHT) WEATH     EQUIP      OBS     DAY  NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B   USE   D    B
 --------------------------------------------------------------------
 NM02/W     19:39  20:30    0    0    0    0   0.9   0    0    0    0
 NM08/R     20:30  01:05    0    0    0    0   4.0  0.5   0    0    0
 UV03/R     01:05  05:36    0    0    0    0    0   3.5   0    0    0
 UW15/O     05:36  06:51    0    0    0    0    0   0.5  0.6   0    0
 note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
 Observing Specialist: R.McMillan
 The night started out clear with good seeing, then some clouds moved
 in.  We closed for clouds and threat of rain, then opened when the
 clouds thinned, closed again for high humidity, opened again when
 humidity dropped...
 CorMASS was feeling somewhat temperamental, but it settled down long
 enough for us to get the critical data on the target.  Then it went
 wonky again.
 The altitude encoder was replaced during the day, and magnesensor
 errors on altitude were much improved.  Pointing on the sky (with
 DIS) was better tonight, but still not quite as good as I would
 like.  It might be worthwhile to obtain a pointing model now that
 we have a working encoder.
 APOLLO got no returns from the moon despite good conditions and no
 obvious problems.  A disappointing way to end the night.
                       ------- 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
 ----------------------------------------------------------------------
 19:44 CORMASS   -25(  551) -23  40  14.0 14.9 14.7 14.1 14.1   Ks 0.6
 20:48 dis-slit    -1(  441)  54  35  13.6 14.0 14.3 13.3 13.6   - 1.2
                ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    -------------------------------------------------------------------
     16:00    63    43     16   269    (W)    380    clear     none
     17:00    64    41      9   270    (W)    559    clear     none
     18:00    61    41     14   242  (WSW)    633    clear     none
     19:00    57    41     10   242  (WSW)    696    clear     none
     20:00    57    42     15   218   (SW)    725    clear     none
     21:00    56    44     17   228   (SW)    642  ptly cldy   none
     22:00    57    44     15   243  (WSW)    609 mstly cldy   none
     23:00    57    45     13   235   (SW)    622 mstly cldy   none
     00:00    56    46     16   234   (SW)    614 mstly cldy   none
     01:00    55    47     11   257  (WSW)    530 mstly cldy   none
     02:00    53    48     12   245  (WSW)    578  ptly cldy  humid
     03:00    52    48     10   248  (WSW)    596 mstly clr   humid
     04:00    52    47      7   268    (W)    599 mstly clr    none
     05:00    52    47      9   269    (W)    589 mstly clr    none
     06:00    53    46      8   304   (NW)    493 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.
                              TELESCOPE STATUS
      Telescope drives operational. Current TCC version: 2.9.1
      Current TUI version: TUI 1.4