From: "N.C. Hastings"
Subject: 3.5m Night Log 990628
Date: Tue, 29 Jun 1999 03:37:36 -0600
                 Apache Point Observatory, Sunspot, NM
                       Monday, June 28th, 1999
                     3.5-meter Night Observing Log
                               Actual
----------------------------------------------------------------------
ASTRONOMER     OBSERVER(S)       INSTRUMENT    DATE      START  FINISH
----------------------------------------------------------------------
B.Gillespie    C.Hastings        Guider        6/28-29   21:57  04:16
                      Observation Time Breakdown
----------------------------------------------------------------------
 INST       SCHEDULED      WEATH     EQUIP      OBS     DAY   NOTUSED
I/RS/DN   START  FINISH    D    B    D    B    D    B   USE   D    B
----------------------------------------------------------------------
DD02/S    21:57  04:16     -   6.3   -    0    -    0    0    -    0
              -------------- Activity Log --------------
Observing Specialist: N.C.Hastings
    The telescope was opened for 20 minute at around 21:30 MST, then
quickly building clouds forced me to close again. The clouds remained
as we were being squeezed between two rather large storm cells. It
started raining quite hard around 02:30am. As the weather log below
shows, the humidistat felt that as soon as the rain started it became
quite dry and the dew point depression suddenly leapt to 20 degrees C!
I was warned by Craig of erratic behavior from this piece of equipment
today.
                              FOCUS LOG
                           June 28th 1999
                  Best    Telescope    Temp      Wind          Seeing
Time  Instrmnt   Focus      Az  El   Air/Truss  Dir MPH  filter FWHM"
---------------------------------------------------------------------
                              WEATHER LOG
                            June 28th 1999
                                  Wind
     Time   Temp-F Dewp-F MPH   Direction    Dust      Sky      Precip
    ------------------------------------------------------------------
     16:01    65    45     15    68  (ENE)    667    Ptly Cldy   None
     17:01    72    61      2    31  (NNE)    479    Ptly Cldy   None
     18:01    70    59      7     2  (N)     1335    Ptly Cldy   None
     19:01    67    57     13    48  (NE)     395    Ptly Cldy   None
     20:01    66    57     16    69  (ENE)    511    Mstly Cldy  None
     21:01    66    56     15    76  (ENE)    325    Mstly Cldy  None
     22:01    66    56      9    84  (E)      384    Mstly Cldy  None
     23:01    65    56     14   113  (ESE)    377    Mstly Cldy  None
     00:01    64    60     19   135  (SE)     657    Mstly Cldy  None
     01:01    62    59     21   138  (SE)     935    Mstly Cldy  None
     02:01    59    26     22   188  (S)     3399    Cloudy      Rain
     03:01    54    24     15   299  (WNW)   9805    Cloudy      Rain
note: the wind was coming from the azimuth listed.  The convention
used is north=0 degrees, east=90 degrees. The dust count is for the
particles > 1 micron per 0.1 cu.ft.
                            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: 2.5.5b5
Current guide software version: GIm Ctrl v3.0b27
-  NCH