From: Russet McMillan
Subject: 3.5m Night Log 20070819
Date: Mon, 20 Aug 2007 05:52:33 -0600 (MDT)
                        Apache Point Observatory
                        3.5m Telescope Night Log
                         Sunday, August 19, 2007
                                                         ACTUAL
 ASTRONOMER     OBSERVER(S)              INSTRUMENT    START  FINISH
 -------------------------------------------------------------------
 M.Chou         M.Chou                   Echelle       23:45  01:00
 B.Balick       K.Kwitter                DIS           03:00  05:50
   INST     SCHED(TWILIGHT) WEATH     EQUIP      OBS     DAY  NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B   USE   D    B
 ---------------------------------------------------------------------
 UV02/R     20:40  01:10   0.6  2.5   0    0   1.3   0    0    0    0
 UW06/R     01:10  05:33   1.8   0    0    0   2.5   0    0    0    0
  note: scheduled times listed include instrument change time
               ------------- ACTIVITY LOG --------------
 Observing Specialists: R.McMillan
 The APOLLO laser is still out of service, so that time was given to
 the following program by pre-arrangement.  It turned out to be
 unusable, anyway.
 Clouds and nearby radar returns kept us closed at sunset, then just
 clouds for a while.  We got just over an hour of partly clear skies
 and subarcsecond seeing at midnight, then the clouds formed overhead
 again just in time for the program change.  We were able to focus
 but couldn't even get a usable standard star observation for a
 while.
 Everything worked well except that pointing was about an arcminute
 off with the echelle at first.  Pointing at NA2 was fine.
 This is our last night before the start of shutdown; there will be
 no night logs for approximately four weeks.
                      ------- 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
 ----------------------------------------------------------------------
 23:58 ECHELLE  -112( -249) 194  65  19.6 20.2 19.2 20.0 19.4   ND2  0.8
 01:44 dis-slit  -100(  520) -70  80  18.7 19.0 18.2 19.1 18.6   -  0.9
 03:07 dis-slit     3(  617) -90  63  18.8 18.7 18.0 18.9 18.6   -  1.1
               ------------- WEATHER LOG ----------------
                                  Wind                      Precip.or
    Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
   -------------------------------------------------------------------
     16:00    67    50     18    54   (NE)    591 mstly cldy   none
     17:00    78    51      8   212  (SSW)    657 mstly cldy   none
     18:00    74    47      9   268    (W)    596 mstly cldy   none
     19:00    72    46      7   260    (W)    513 mstly cldy   none
     20:00    68    46      4   266    (W)    521 mstly cldy   none
     21:00    67    45      5   263    (W)    496 mstly cldy   none
     22:00    68    47      5   279    (W)    623 mstly cldy   none
     23:00    67    46      3   204  (SSW)    647 mstly cldy   none
     00:00    67    47      1   321   (NW)    664  ptly cldy   none
     01:00    66    46      1   224   (SW)    671 mstly cldy   none
     02:00    66    46      2   207  (SSW)    616 mstly cldy   none
     03:00    65    47      4     1    (N)    637  ptly cldy   none
     04:00    66    46      4   353    (N)    573 mstly clr    none
     05:00    65    46      8     4    (N)    716 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 1.3