From:
Subject: 3.5m Night Log 20090118
Date: Mon, 19 Jan 2009 14:35:35 +0000 (UTC)
                        Apache Point Observatory
                        3.5m Telescope Night Log
                        Sunday, January 18, 2009
                                                         ACTUAL
 ASTRONOMER      OBSERVER(S)              INSTRUMENT   START  FINISH
-------------------------------------------------------------------
 A.Ginsburg      A.Ginsburg               DIS          17:40  23:55
 G.Wallerstein   J.Hughes                 SPICAM       00:15  05:58
 T.Murphy        R.McMillan               APOLLO       06:10  06:57
   INST     SCHED(TWILIGHT) WEATH     EQUIP      OBS     DAY  NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B   USE   D    B
----------------------------------------------------------------------
 CU04/R     18:20  00:10    0    0    0    0   5.8   0    0    0    0
 UW11/R     00:10  05:56    0    0    0    0   1.5  4.3   0    0    0
 UW17/O     05:56  06:57    0    0    0    0    0   0.2  0.8   0    0
  note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
Observing Specialist: R.McMillan
A peaceful night with everything generally working well except for
the weather.  We had persistent variable cirrus and poor seeing all
night long.
The first half observer reported pointing somewhat off with DIS, and
asked me to correct it; the change in mirror tilts was xtilt +200,
ytilt -500, which is quite substantial.  Pointing remained consistent
after that correction until the switch to APOLLO, which was off by
about 5 arcminutes, causing some delay in getting started.  Once
pointing was established, APOLLO had a successful run, but not very
dramatic given the conditions.
                       ------- 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
 --------------------------------------------------------------------------
 18:10 dis-slit  23( -130) 110  45   2.7  4.6  3.7  3.3  3.0   -      1.50
 00:36 SPICAM  -130( -130)  64  83   3.8  3.1  3.6  2.7  3.4 Strom y  1.70
 06:23 APOLLO  -130(  505) -18  44   2.3  2.3  2.4  1.7  2.1   530    1.80
                ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    -------------------------------------------------------------------
     16:00    38    11     12   332  (NNW)    377  ptly cldy   none
     17:00    38     9      3     1    (N)    279  ptly cldy   none
     18:00    37     1     10   326   (NW)     86  ptly cldy   none
     19:00    36     3      7    29  (NNE)    120  ptly cldy   none
     20:00    37     4     13    10    (N)    108  ptly cldy   none
     21:00    37     2     16   353    (N)    104  ptly cldy   none
     22:00    37     0     21    18  (NNE)     96  ptly cldy   none
     23:00    39    -5     17    24  (NNE)     61  ptly cldy   none
     00:00    39    -5     24    16  (NNE)     66  ptly cldy   none
     01:00    39    -7     16    28  (NNE)     77  ptly cldy   none
     02:00    38    -7     21    17  (NNE)     95  ptly cldy   none
     03:00    41    -6     16    32  (NNE)     59  ptly cldy   none
     04:00    38    -6     19    76  (ENE)     99  ptly cldy   none
     05:00    38    -6     22    73  (ENE)    134  ptly cldy   none
     06:00    36    -4     25    77  (ENE)    146  ptly cldy   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 1.5.1