Date: Thu, 18 May 2006 06:05:18 -0600 (MDT)
From: Jack Dembicky
Subject: 3.5m Night Log 20060517
                        Apache Point Observatory
                        3.5m Telescope Night Log
                        Wednesday, May 17, 2006
                                                         ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START FINISH
 --------------------------------------------------------------------
 R.Wyse        D.Zucker                 SPIcam         23:45 00:45
 C.Laws        C.Laws, M.Schmieding     Echelle        02:10 05:45
               C.Mathiesen, A.Kobelski
  INST     SCHED(TWILIGHT)   WEATH     EQUIP     OBS     DAY  NOT USED
 I/ROW/DN    START FINISH   D    B    D    B    D    B   USE   D    B
 ----------------------------------------------------------------------
 JH05/R      20:57  01:00  3.1   0    0    0   1.0   0    0    0    0
 UW09/R      01:00  05:02  0.3  0.9   0    0    0   2.8   0    0    0
  note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
 Observing Specialist: J.Dembicky
 A bit of a frustrating, weatherwise, first half.  We saw virga off to our
 west at sunset but I opened to let my observer get twilight flats.  As
 soon as they were done taking those I decided it prudent to close, as we
 had clouds to our N and headed this direction.
 The clouds stuck around for most of the 1st half, then teased us with
 clearing, although there was still stuff to our N but disappating as it
 approached us.  I finally took the plunge and opened around 23:40 and of
 course clouds started to appear almost as soon as I opened.  Nothing like
 a 3.5m telescope to attract clouds!  We stayed open for an hour until
 once again the clouds moved in.
 We again opened at 02:05 after the clouds once again parted.
 Everything ran smoothly 2nd half.
                       ------- FAILURE LOG -------
  PROG   INST   FAILURE MODE     TIME
       (SEDFNVOG)    TI/SHU   START  FINISH  DESCRIPTION
 -----------------------------------------------------------------------
                ---------------- FOCUS LOG ---------------
                                        Air/Truss   Wind
 Time   Instrument   Focus     Az  El    Temp-C    Dir MPH  filt  FWHM
 ---------------------------------------------------------------------
 23:51  SPIcam     -25(1315)  -91  29  12.9/12.8   212   5   g'   1.2
 23:59  NA2gdr  -3652(29347)  -92  27  12.9/12.7   184   4   R    0.9
 02:11  Echelle     -38(145)   55  70  11.6/11.8   225   7  ND1   0.9
                ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     18:01    59    24      9   351  (N)     1277   Cloudy   sprinkles
     19:01    57    26      1   352  (N)     1340  Mst. Cldy    none
     20:01    55    27      3   148  (SSE)   1230    Pt. Cldy   none
     21:01    54    26      7   132  (SE)    1327   Mst. Cldy   none
     22:01    55    26      9   167  (SSE)   1406   Mst. Cldy   none
     23:01    54    25      5   183  (S)     1351   Mst. Cldy   none
     00:01    56    24      5   180  (S)     1372    Pt. Cldy   none
     01:01    54    23     10   232  (SW)    1640   Mst. Cldy   none
     02:01    52    22      4   220  (SW)    1547    Pt. Cldy   none
     03:01    54    21      6   251  (WSW)   1422    Pt. Cldy   none
     04:01    54    21      8   236  (SW)    1526    Pt. Cldy   none
     05:01    54    21      6   215  (SW)    1434     Clear     none
     06:01    51    21      3   226  (SW)    1487     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: 2.8.4
      Current TUI version: TUI 1.1