Date: Tue, 8 Apr 2008 06:10:17 -0600 (MDT)
From: Jack Dembicky
Subject: 3.5m Night Log 20080407
                        Apache Point Observatory
                        3.5m Telescope Night Log
                         Monday, April 07, 2008
                                                         ACTUAL
 ASTRONOMER      OBSERVER(S)             INSTRUMENT    START  FINISH
 -------------------------------------------------------------------
 L.Walker        L.Walker                SPIcam       --:--   --:--
 S.Anderson      S.Anderson              AGILE        01:40   05:36
   INST     SCHED(TWILIGHT) WEATH     EQUIP      OBS     DAY  NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B   USE   D    B
 ---------------------------------------------------------------------
 UV03/R     20:23  01:05   3.3  1.4   0    0    0    0    0    0    0
 UW06/R     01:10  05:47   0.6   0    0    0   4.1   0    0    0    0
  note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
 Observing Specialists: J. Dembicky
 High dust, windy and clouds at the start of the night kept us closed.
 The wind died down, a little, but the clouds and dust remained
 high (spiking over 11K at one point) which kept us closed.
 Dust was still around 4100 cts at 01:30 but it seemed to be stable and I
 decided it was safe to open.
 With no fans running the primary stayed above ambient and the focus
 drifted considerably during the first hour or so.  I was able to adjust
 focus on the fly so no time was lost in focusing after the initial focus
 of the telescope.  Outside dust levels stayed between 3000-4000 cts for
 all of 2nd half, inside levels were around 1700cts with the fans off
 (press on) and louvers closed all night.
                       ------- FAILURE LOG -------
  PROG   INST   FAILURE MODE     TIME
      (SAEDFNVOG)   TI/SHU    START  FINISH  DESCRIPTION
 ----------------------------------------------------------------------
               ---------------- FOCUS LOG ---------------
 Time  Instrument  Focus    Az  El  Temp Strc Prim  Sec  Air  filt  FWHM
 -----------------------------------------------------------------------
 01:54 AGILE    16(-420)   172  75  4.1  5.5   7.9  4.6  4.3  BG40  0.7
                ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    -------------------------------------------------------------------
     17:00    49    17     19   242  (WSW)   3723    cldy      dust
     18:00    49    18     21   247  (WSW)   4902    cldy      dust
     19:00    49    18     18   263    (W)   4985    cldy      dust
     20:00    46    18     18   264    (W)   4115    cldy      dust
     21:00    45    17     20   267    (W)   9098    cldy      dust
     22:00    44    13     12   243  (WSW)   5565    cldy      dust
     23:00    43    13     25   267    (W)   4888    clear     dust
     00:00    41    12     20   278    (W)   4461    clear     dust
     01:00    40    11     13   281    (W)   4384    clear     dust
     02:00    39     9     11   301  (WNW)   3772    clear     dust
     03:00    40     6     15    10    (N)   3745    clear     dust
     04:00    39     5      9    10    (N)   3258    clear     dust
     05:00    38     9     14     5    (N)   3601    clear     dust
     06:00    38     8     12   344  (NNW)   3703    clear     dust
     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 1.4.5