Date: Thu, 9 Apr 2009 05:58:59 -0600 (MDT)
Subject: 3.5m Night Log 20090408
From: "Jack Dembicky"
                        Apache Point Observatory
                        3.5m Telescope Night Log
                       Wednesday, April 08, 2009
                                                         ACTUAL
 ASTRONOMER     OBSERVER(S)             INSTRUMENT    START  FINISH
 -------------------------------------------------------------------
 B.Ketzeback    J.Dembicky              Echelle       --:--  --:--
 T.Yan          T.Yan, B.Keeney         TSPEC         --:--  --:--
 T.Murphy       R.McMillan              APOLLO        --:--  --:--
 T.Harrison     D.Hoffman               Echelle       --:--  --:--
   INST     SCHED(TWILIGHT) WEATH     EQUIP      OBS     DAY  NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B   USE   D    B
 ---------------------------------------------------------------------
 NM10/W     20:23  20:36    0   0.2   0    0    0    0    0    0    0
 CU03/R     20:36  01:05    0   4.5   0    0    0    0    0    0    0
 UW13/R     01:05  02:05    0   1.0   0    0    0    0    0    0    0
 NM08/R     02:05  05:46    0   3.7   0    0    0    0    0    0    0
  note: scheduled times listed include instrument chanyes, some ge time
                ------------- ACTIVITY LOG --------------
 Observing Specialist: J.Dembicky
 00:52 UT Az  Drive slip during test slews
 00:55UT Az drive slip again during test slew (az 112 deg CW slew)
 00:58UT Az drive slit during test slew (az  93.5 CCW slew)
I tried several test slews in both CW and CCW directions to see if I could reproduce the slips
with any regularity. Seemed random but I did see 3 slips with about 8 test slews.
Weather info went down around 01:30, Steph rebooted a computer and brought it back for us.  We
noticed that we had a lot of telmech-mon processes as TUI users (I had 4 or 5 at the start of the
night and we gained another 1 when we had the weather problems).  The temps and wind speeds came
back but we lost the dust counter value on the weather display.
Wind and/or clouds kept us closed all night.
                ------------- ACTIVITY LOG --------------
  PROG   INST   FAILURE MODE     TIME
      (STEDFNVOG)   TI/SHU    START  FINISH  DESCRIPTION
 ----------------------------------------------------------------------
               ---------------- FOCUS LOG ---------------
 Time  Instrument  Focus    Az  El  Temp Strc Prim  Sec  Air  filt FWHM
 -----------------------------------------------------------------------
                 ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    -------------------------------------------------------------------
     16:00    53    25     34   257  (WSW)   1895    cldy      Windy
     17:00    52    25     32   264    (W)   1093    cldy      Windy
     18:00    51    25     38   235   (SW)   1475    cldy      Windy
     19:00    51    22     30   258  (WSW)   2986    cldy      Windy
     20:00    50    21     34   253  (WSW)   2568    cldy      Windy
     21:00    49    20     23   265    (W)   1976    cldy      Windy
     22:00    47    20     28   267    (W)   1925    cldy      Windy
     23:00    46    20     30   253  (WSW)   1555    cldy      Windy
     00:00    44    11     25   256  (WSW)   1776    cldy      Windy
     01:00    41     7     35   261    (W)   1259    cldy      Windy
     02:00    38     9     38   246  (WSW)           clear     Windy
     03:00    36    10     29   256  (WSW)           clear     Windy
     04:00    33    14     31   263    (W)           clear     Windy
     05:00    30    14     27   276    (W)           clear     Windy
     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: 2.10.0
      Current TUI version: TUI 1.5.1