Date: Wed, 14 Apr 2010 04:58:45 -0600 (MDT)
Subject: 3.5m Night Log 20100413
From: "Jack Dembicky"
                        Apache Point Observatory
                        3.5m Telescope Night Log
                        Tuesday April 13, 2010
                                                         ACTUAL
 ASTRONOMER     OBSERVER(S)             INSTRUMENT    START  FINISH
 -------------------------------------------------------------------
 Q.Hart         Q.Hart                  NICFPS        18:45  00:15
 C.Wu           C.Wu                    DIS           --:--  --:--
  PROG        SCHEDULED      WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH    D    B    D    B    D    B    D    B
 ------------------------------------------------------------------
 CU08/R     19:40  01:10    0.9   0    0    0   4.6   0    0    0
 NM05/R     01:10  06:26    5.1  0.2   0    0     0   0    0    0
   note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
 Observing Specialist: J.Dembicky
 During checkout I heard the drives oscillate at Alt/az 60/20 (during initial slews).
 First part of the night was beautiful with excellent seeing.  A storm cell started to form to our
S around 22:00 and slowly moved northward with APO being just on it's western edge.  Lots of
radar returns and lightning but no precip at the site, just clouds which kept up close all of the
2nd half.
My observer gave up around 04:30 as we still had radar echos around us and clouds overhead.
                ------------- FAILURE LOG --------------
  PROG   INST   FAILURE MODE     TIME
      (STEDFNVOG)   TI/SHU    START  FINISH  DESCRIPTION
 ----------------------------------------------------------------------
               ---------------- FOCUS LOG ---------------
 Time  Instrument  Focus    Az  El  Temp Strc Prim  Sec  Air  filt FWHM
 -----------------------------------------------------------------------
 20:01 NICFPS   154(  888)  33  53   9.4 10.7 10.0  9.3  9.8   J  0.75
 20:12 NA2gdr -2131(40868)  70  74   8.9 10.4  9.8  9.1  9.5   clear  1.00
 20:55 NICFPS    37(  704)  41  81   8.8  9.6  9.4  8.5  8.9   Ks  0.70
 20:55 NA2gdr -3077(39922)  41  81   8.9  9.6  9.4  8.5  8.9   clear  0.85
                 ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    -------------------------------------------------------------------
     16:00    58    22     27   217   (SW)   1165    clear     none
     17:00    56    21     20   213  (SSW)   1269    clear     none
     18:00    55    24     22   205  (SSW)   1351    clear     none
     19:00    52    20     16   210  (SSW)   1132    clear     none
     20:00    49    18     12   219   (SW)   1131    clear     none
     21:00    48    18     10   213  (SSW)   1213    clear     none
     22:00    49    15     11   225   (SW)   1231    clear     none
     23:00    48    15      6   243  (WSW)   1162    clear     none
     00:00    47    24      8   187    (S)    954 mstly cldy   none
     01:00    45    42     15   125   (SE)    912   cloudy    humid
     02:00    44    41     15   143   (SE)    647   cloudy    humid
     03:00    44    39     15   145   (SE)    640   cloudy    humid
     04:00    44    34     10   157  (SSE)    576   cloudy     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: 2.11.1
      Current TUI version: 1.7.1