From: "N.C. Hastings"
Subject: 3.5m Night Log 990407
Date: Thu, 8 Apr 1999 05:19:35 -0600
                 Apache Point Observatory, Sunspot, NM
                       Wednesday, April 7th, 1999
                     3.5-meter Night Observing Log
                                Actual
----------------------------------------------------------------------
ASTRONOMER     OBSERVER(S)       INSTRUMENT    DATE      START  FINISH
----------------------------------------------------------------------
K.Krisciunas   K.Gloria          SPIcam        4/7       --:--  --:--
T.Williams     T.Williams        DIS           4/7-8     --:--  --:--
----------------------------------------------------------------------
 INST       SCHEDULED      WEATH     EQUIP      OBS     DAY   NOTUSED
I/RS/DN   START  FINISH    D    B    D    B    D    B   USE   D    B
----------------------------------------------------------------------
UW02/S    20:52  21:52    1.0   -    0    -    0    -    0    0    -
NM06/S    21:52  05:18    3.6  3.8   0    0    0    0    0    0    0
               -------------- Activity Log --------------
1st Half Observing Specialist: K.Gloria
	The telescope was not opened for the first half of the night.  We had
another tremendous dust storm this afternoon, extending into the
evening.  In addition to the dust, it was cloudy with occasional
showers of mud raining down from the sky.
	I was the observer for UW02 and Tom Williams was on site to observe
for NM06.
	Jon Brinkman and I worked on the DIS problem mentioned in last
night's log.  It appears to be a possible scattered light problem that
only manifests itself when the instrument is not on the telescope.
2nd Half Observing Specialist: N.C.Hastings
	We were closed during second half due to dust and wind.
                               FOCUS LOG
                            April 7th 1999
                  Best    Telescope    Temp      Wind          Seeing
Time  Instrmnt   Focus      Az  El   Air/Truss  Dir MPH  filter FWHM"
---------------------------------------------------------------------
                      No Focus Data This Evening
                              WEATHER LOG
                            April 7th 1999
                                  Wind
     Time   Temp-F Dewp-F MPH   Direction    Dust      Sky      Precip
    ------------------------------------------------------------------
     16:01                 26   212  (SSW)   6000   overcast     mud
     17:01                 38   209  (SSW)  19569   overcast   lt. mud
     18:01                 38   209  (SSW)  67460   mstly cldy   dust
     19:01                 40   215  (SW)  100720   mstly cldy   dust
     20:01                 41   218  (SW)   69373   mstly cldy   dust
     21:01                 35   221  (SW)   36205   mstly cldy   dust
     22:01                 37   239  (WSW)  27832   mstly cldy   dust
     23:01                 39   224  (SW)   15276   mstly cldy   none
     00:01                 28   237  (WSW)  20015   mstly cldy   none
     01:01                 29   220  (SW)    4930   mstly cldy   none
     02:01                 33   232  (SW)    4484   mstly cldy   none
     03:01                 21   223  (SW)    2545   mstly cldy   none
     04:01                 16   256  (WSW)   2915   mstly cldy   none
     05:01                 27   261  (W)     3175   mstly 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 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: 2.55b1
Current guide software version: GIm Ctrl v3.0b 17.out
-  KAG, NCH