Date: Wed, 16 Jul 2008 04:17:36 -0600 (MDT)
Subject: 3.5m Night Log 20080715
From: "Jack Dembicky"
                        Apache Point Observatory
                        3.5m Telescope Night Log
                         Tuesday, July 15, 2008
                                                         ACTUAL
 ASTRONOMER     OBSERVER(S)             INSTRUMENT    START  FINISH
 -------------------------------------------------------------------
 M.Klaene       J.Dembicky              SPIcam        21:14  05:04
   INST     SCHED(TWILIGHT) WEATH     EQUIP      OBS     DAY  NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B   USE   D    B
 --------------------------------------------------------------------
 EN01/O     21:14  05:05   0.7   7.2  0    0    0    0    0    0    0
  note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
 Observing Specialist: J. Dembicky
 Az  Velocity scale 578.7
 Alt Velocity scale -632.8
 A very frustrating night of clouds and patches of passing "sucker holes"
thrown in just to make things even more frustrating, and even those
"sucker holes" weren't all that "clear" at times.  We had a large mass of
clouds just off to our east almost all night long and with the humidity
near or above 80% all night and being radar blind to our East, I didn't
feel safe enough to open under these conditions.
 I did a manual fill of the Echelle shield at 20:00 and again at 04:00
when I closed for the night.
                       ------- 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
 -----------------------------------------------------------------
                ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    -------------------------------------------------------------------
     16:00    67    51     14   270    (W)    388   Pt. cldy   none
     17:00    68    53      9   217   (SW)    396   Pt. cldy   none
     18:00    65    50     10   254  (WSW)    456    cldy      none
     19:00    63    51      7   263    (W)    421    cldy      none
     20:00    61    53      6   264    (W)    648    cldy      none
     21:00    60    52      7   265    (W)    484    cldy      none
     22:00    60    51     10   231   (SW)    469    cldy      none
     23:00    60    51     11   224   (SW)    430    cldy      none
     00:00    59    52      8   211  (SSW)    565    cldy      none
     01:00    60    53     13   209  (SSW)    745    cldy      none
     02:00    58    52      9   202  (SSW)    668    cldy      none
     03:00    58    52      8   234   (SW)    496    cldy      none
     04:00    58    52      7   270    (W)    489    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