Date: Sun, 19 May 2002 05:20:55 -0600 (MDT)
From: John Barentine
Subject: 3.5m Night Log 20020518
                         APACHE POINT OBSERVATORY
                         3.5m Telescope Night Log
                          Saturday, May 18, 2002
                                                           ACTUAL
 ASTRONOMER     OBSERVER(S)             INSTRUMENT     START  FINISH
 -------------------------------------------------------------------
 M.Strauss      M.Strauss               DISII          20:40   00:35
 A.Nitta        A.Nitta,J.Kreszinski    DISII          00:44   05:17
   INST        SCHEDULED     WEATH     EQUIP     OBS     DAY  NOTUSED
 I/RO/DN     START FINISH   D    B    D    B    D    B   USE   D    B
 --------------------------------------------------------------------
 PU05/R      20:58  01:00   0    0    0    0    0   4.0   0    0    0
 NM02/O      01:00  05:01   0    0    0    0   3.2  0.8   0    0    0
 note: scheduled times listed include instrument change time
                  ------------- ACTIVITY LOG --------------
 Observing Specialist: J.Barentine
 Things began tonight looking much like last night.  Clouds came and went
with periods of good and bad seeing.  Winds were lower than last night and
not quite so eastern.  The first half observer yielded about 30 minutes of
his time toward 00:30 to Atsuko since clouds were moving in on their
target.
 Second half continued smooth with frequent waves of clouds.  The humidity
crept up around 03:00 but never reached the limit, so we stayed open.
Despite east winds, our seeing was subarcsecond most of this time with
occasional departures up to the 1.1-1.3 arcsecond range.  All quiet on the
telescope front.
                        ------- FAILURE LOG -------
 PROG   INST       FAILURE      TIME
        S/E/G/D/O  TI/SHU   START  FINISH  DESCRIPTION
 -----------------------------------------------------------------------
               ---------------- FOCUS LOG ---------------
                                        Air/Truss   Wind
 Time   Instrument   Focus     Az  El    Temp-C    Dir MPH  filt  FWHM
 ---------------------------------------------------------------------
 20:53 DISslit     -300(582)   126 73  10.2/14.6  110  13   -     1.66
 21:13 NA2gdr      -2500(54500)288 50  10.4/13.2  125  15   clear 2.64
              --------------- WEATHER LOG ----------------
                                 Wind                        Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:01    66    37     11   253  (WSW)   1400  PtlyCldy    none
     17:01    61    35      2   191  (S)     1342  PtlyCldy    none
     18:01    58    34      5    89  (E)     1232  PtlyCldy    none
     19:01    57    35      7   203  (SSW)   2127  PtlyCldy    none
     20:01    53    36     13   112  (ESE)   2011  PtlyCldy    none
     21:01    51    36      9   108  (ESE)   2021  PtlyCldy    none
     22:01    54    22     14   128  (SE)    1467  PtlyCldy    none
     23:01    52    25     17   131  (SE)    1528  PtlyCldy    none
     00:01    52    28     18   130  (SE)    1447  PtlyCldy    none
     01:01    51    30     16   122  (ESE)   1451  PtlyCldy    none
     02:01    48    38     17   129  (SE)    1482  PtlyCldy    none
     03:01    48    41     15   142  (SE)    1388  PtlyCldy    none
     04:01    50    38     14   178  (S)     1403  PtlyCldy    none
     05:01    48    36     13   172  (S)      916  PtlyCldy    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
   Primary, secondary, and tertiary mirrors in place and collimated.
   Primary support system operational. Mirror ventilation system in
   place.
   Telescope drives operational. Current Remark version: 2.82
   Current guide software version: GIm Ctrlv4.1b2
   Current TCC version: 2.6.3