Date: Tue, 17 Jun 2008 06:17:20 -0600 (MDT)
From: Jack Dembicky
Subject: 3.5m Night Log 20080616
                        Apache Point Observatory
                        3.5m Telescope Night Log
                         Monday, June 16, 2008
                                                         ACTUAL
 ASTRONOMER      OBSERVER(S)             INSTRUMENT    START  FINISH
 -------------------------------------------------------------------
 J.Wilson        J.Wilson, R.Indebetouw  TSpec         20:20  23:30
                 O.Fox, J.Leisenring,
                 M.Bary, M.Skrutski
 T.Murphy        R.McMillan              APOLLO        --:--  --:--
 J.Wilson        J.Wilson, R.Indebetouw  TSpec         02:20  06:15
                 O.Fox, J.Leisenring,
                 M.Bary, M.Skrutski
   INST     SCHED(TWILIGHT) WEATH     EQUIP      OBS     DAY  NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B   USE   D    B
 ---------------------------------------------------------------------
 EN02/R     21:17  00:05    0   0.5   0    0    0   2.3   0    0    0
 DD01/R     00:05  01:05    0   1.0   0    0    0    0    0    0    0
 EN02/R     01:05  04:51    0   1.2   0    0   0.1  2.5   0    0    0
  note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
 Observing Specialists: J. Dembicky
 Clouds closed us for a few hours around 00:00.  We had a couple raindrops
 but not enough to even wet the sidewalk.  We re-opened around 02:15.
 We seemed to have a lot of problems with the TSpec Slitviewer locking up
 around 04:00.  It kept giving us a On-field-Defering and lock.
 restarting the tcam quickly fixed the problem but it kept coming up
 anywhere from 2-5 frames to a min or so into exposures (1.2s, 2s, and 5s
 exposures were being used).  We must have had 20+ lockups in about as may
 minutes or less.  A scan of defering in the night log I think will show
 when we had problems.  After about 04:30 the problems seemed to go away
 on their own.  We didn't do anything differently.
                       ------- 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
 -----------------------------------------------------------------------
 20:58 TSlit     -25(1008) -87  44  21.7 22.9 22.5  21.3 21.7   Ks   0.75
 02:32 TSlit      -10(785) 207  70  18.4 18.3 18.5  17.7 18.1   Ks   0.9
                ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    -------------------------------------------------------------------
     18:00    79    26      8   256  (WSW)    799  Pt. Cldy    none
     19:00    75    26     14   276    (W)    888  Pt. Cldy    none
     20:00    72    25      4   271    (W)    850  Pt. Cldy    none
     21:00    71    25      6   349    (N)    866  Pt. Cldy    none
     22:00    68    27      6   350    (N)   1374  Pt. Cldy    none
     23:00    70    27      5    89    (E)   1518  Mst. Cldy   none
     00:00    66    29     19    64  (ENE)   1211  Mst. Cldy   none
     01:00    63    34     18    68  (ENE)   1624  Mst. Cldy   none
     02:00    64    36     17    74  (ENE)   2331  Pt. Cldy    none
     03:00    66    32      7    86    (E)   2003  Pt. Cldy    none
     04:00    62    36     13    80    (E)   2210  Pt. Cldy    none
     05:00    58    40     19    75  (ENE)   2604  Pt. 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 1.4.5