Subject: 3.5m Night Log 20080430
Date: Thu,  1 May 2008 06:13:11 -0600 (MDT)
From: bketzeba@apo.nmsu.edu (Bill Ketzeback)
                        Apache Point Observatory
                        3.5m Telescope Night Log
                       Wednesday, April 30th, 2008
                                                         ACTUAL
 ASTRONOMER     OBSERVER(S)             INSTRUMENT    START  FINISH
 -------------------------------------------------------------------
 B.Keeney       B.Keeney,J.Stocke,      DIS           22:05  01:05
                T.Yan
 J.Frieman      H.Lin,T.Diehl           DIS           01:05  05:45
   INST     SCHED(TWILIGHT) WEATH     EQUIP      OBS     DAY  NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B   USE   D    B
 ---------------------------------------------------------------------
 CU02/O     20:42  01:05   1.4   0    0    0   3.0   0    0    0    0
 UC03/R     01:05  05:18    0    0    0    0   2.5  1.7   0    0    0
  note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
 Observing Specialist: B.Ketzeback
 Az Velocity Scales:
   At checkout 585.55, 583.57; 584.6 was 583.0. No change made.
 Dust and high winds kept us closed until a little after 22:00.
 Dust levels above closure limit all night but with the press fans
 on and louvers closed we were able to stay open for the rest of
 the night.  The day staff should inspect the optics for CO2 cleaning
 again today.
 Seeing was horrific (> 3 arcseconds) all of second half.
 No other problems.
                       ------- 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
 -----------------------------------------------------------------
 22:22 dis-slit -89(   18) -30  78   9.2 10.3 10.7  9.9  9.2   --  1.87
 00:19 dis-slit 163(  149) -75  62   7.5  7.8  8.5  7.5  7.6   --  1.94
                ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    -------------------------------------------------------------------
     16:00    61    17     23   256  (WSW)   8943 mstly clr    dust
     17:00    60    15     26   268    (W)  12895  ptly cldy   dust
     18:00    60    15     35   257  (WSW)  13633  ptly cldy   dust
     19:00                 25   258  (WSW)         ptly cldy   dust
     20:00    53     9     25   255  (WSW)   9011    clear     dust
     21:00    52     8     32   242  (WSW)   6618    clear     dust
     22:00    50     8     25   240  (WSW)   6655    clear     dust
     23:00    49     9     23   252  (WSW)   5648    clear     dust
     00:00    48    12     23   236   (SW)   4224    clear     dust
     01:00    46    14     21   216   (SW)   4718    clear     dust
     02:00    45    13     22   228   (SW)   3462  ptly cldy   dust
     03:00    44     9     25   262    (W)   3518  ptly cldy   dust
     04:00    43     6     13   241  (WSW)   3465  ptly cldy   dust
     05:00    41     6     25   222   (SW)   2874  ptly cldy   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