From: "N.C. Hastings"
Subject: 3.5m Night Log 990612
Date: Sun, 13 Jun 1999 04:04:40 -0600
                 Apache Point Observatory, Sunspot, NM
                       Saturday, June 12th, 1999
                     3.5-meter Night Observing Log
                                Actual
----------------------------------------------------------------------
ASTRONOMER     OBSERVER(S)       INSTRUMENT    DATE      START  FINISH
----------------------------------------------------------------------
K.Krisciunas   K.Krisciunas       SPIcam       6/12      --:--  --:--
S.Tremaine     M.Holman           SPIcam       6/12-13   --:--  --:--
M.Strauss      M.Strauss          DIS          6/13      --:--  --:--
----------------------------------------------------------------------
 INST       SCHEDULED      WEATH     EQUIP      OBS     DAY   NOTUSED
I/RS/DN   START  FINISH    D    B    D    B    D    B   USE   D    B
----------------------------------------------------------------------
UW02/R    21:53  22:53    1.0   -    0    -    0    -    0    0    -
PU02/R    22:53  01:11    2.3   -    0    -    0    -    0    0    -
PU03/S    01:11  04:13    3.0   -    0    -    0    -    0    0    -
               -------------- Activity Log --------------
Observing Specialist: N.C.Hastings
    The telescope stayed closed first half due to threatening weather.
At roughly 23:15 MST the humidity shot up from 45% to 92% in about 1
minute! This seemed odd and maybe someone should check the humidistat
logs to make sure there is not a problem. It felt like 92% outside
long before it actually read 92%. No observing took place tonight....
                               FOCUS LOG
                             June 12th 1999
                  Best    Telescope    Temp      Wind          Seeing
Time  Instrmnt   Focus      Az  El   Air/Truss  Dir MPH  filter FWHM"
---------------------------------------------------------------------
                              WEATHER LOG
                            June 12th 1999
                                  Wind
     Time   Temp-F Dewp-F MPH   Direction    Dust      Sky      Precip
    ------------------------------------------------------------------
     16:01    61    30      6    38  (NE)    1274    Cloudy      None
     17:01    59    30     13    64  (ENE)   1144    Cloudy      None
     18:01    57    30      4    93  (E)     1258    Cloudy      None
     19:01    56    30      8    84  (E)     1212    Cloudy      None
     20:01    54    31     10    79  (ENE)   1187    Cloudy      None
     21:01    52    30     15    74  (ENE)   1331    Cirrus      None
     22:01    51    29     18    75  (ENE)   1257    Cirrus      None
     23:01    50    30     13    78  (ENE)   1445    Cirrus      None
     00:01    49    47     21    68  (ENE)   1521    Cirrus      None
     01:01    48    46     13    77  (ENE)   1637    Cloudy      None
     02:01    49    46     16    71  (ENE)   1635    Cloudy      None
     03:01    49    46     11    84  (E)     1763    Cloudy      None
     04:01    48    44      1   108  (ESE)   1745    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 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: 2.55b5
Current guide software version: GIm Ctrl v3.0b 17.out
-  NCH