Date: Fri, 28 Mar 2008 05:40:33 -0700 (MST)
From: Jack Dembicky
Subject: 3.5m Night Log 20080327
                        Apache Point Observatory
                        3.5m Telescope Night Log
                        Thursday, March 27, 2008
                                                         ACTUAL
 ASTRONOMER      OBSERVER(S)             INSTRUMENT    START  FINISH
 -------------------------------------------------------------------
 M.Gladders      M.Gladders              DIS           19:15  00:57
 J.Fulbright     G.Ruchti                Echelle       00:10  06:45
   INST     SCHED(TWILIGHT) WEATH     EQUIP      OBS     DAY  NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B   USE   D    B
 ---------------------------------------------------------------------
 UC01/R     20:14  01:10    0    0    0    0   4.9   0    0    0    0
 JH04/R     01:10  06:02    0    0    0    0    0   4.9   0    0    0
  note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
 Observing Specialists: J. Dembicky
I filled the TSpec Aux tank (1/8L in ~24 hrs) to get a feel for hold time.
I also filled TSpec main tank (8min fill per 24hrs)
Both fills were with the instrument rotated 90 deg (fill ports on side).
11:04  SLitviewe image went black with what appeared a white slit offset.
see image d0273.  The next image was fine.
Everything ran pretty smooth tonight.
                       ------- 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
 -----------------------------------------------------------------------
 20:03 DISslit     55(195)  37  51  8.2  10.9  10.3 10.3  8.8   --   1.3
 01:07 Echelle   -96(-922)  13  74  5.9   5.7   6.1  4.5  5.6  clear 0.85
                ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    -------------------------------------------------------------------
     16:00    54     7     20   299  (WNW)   1791    clear     none
     17:00    54     8     20   257  (WSW)   1809    clear     none
     18:00    55    10     10   266    (W)   1955    clear     none
     19:00    52     8     16   247  (WSW)   1865    clear     none
     20:00    47     9     16   243  (WSW)   2343    clear     none
     21:00    46    12     17   266    (W)   2089    clear     none
     22:00    46    13     12   267    (W)   2034    clear     none
     23:00    44    12      8   269    (W)   2032    clear     none
     00:00    43    11      6   265    (W)   2222    clear     none
     01:00    43    11      7   276    (W)   2265    clear     none
     02:00    43     8      8   325   (NW)   1627    clear     none
     03:00    44     9      3   256  (WSW)           clear     none
     04:00    41    11      2   335  (NNW)           clear     none
     05:00    43    11      5   322   (NW)           clear     none
     06:00    43    11      4   286  (WNW)           clear     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 1.4.5