From: "Camron Hastings"
Subject: 3.5m Night Log 990109
Date: Sun, 10 Jan 1999 06:03:17 -0700
		     Apache Point Observatory, Sunspot, NM
		          Saturday, January 9th, 1999
                     3.5-meter Night Observing Log
					  Actual
-----------------------------------------------------------------------
ASTRONOMER       OBSERVER(S)     INSTRUMENT      DATE     START  FINISH
-----------------------------------------------------------------------
D.Zucker         D.Zucker         SPIcam        1/9-10    18:42  23:57
N.Miller         N.Miller         DIS           1/10      00:13  05:39
                 C.Fassnacht
-----------------------------------------------------------------------
 INST       SCHEDULED      WEATH     EQUIP      OBS     DAY    NOTUSED
I/RS/DN   START  FINISH    D    B    D    B    D    B   USE    D    B
-----------------------------------------------------------------------
UW07/R    18:42  00:10     0    -    0    -   5.5   -    0     0    -
NM04/S    00:10  05:39     0    0   0.2   0   0.5  4.8   0     0    0
               -------------- Activity Log --------------
1st Half Observing Specialist: Karen Gloria
     The telescope was opened at 16:15 MST. The sky was clear, but there was
a gusty wind out of the NW, which nearly doubled the fwhm of
images taken in that direction. Dan Zucker observed remotely for
UW07. Neill Miller and Chris Fassnacht observed onsite for NM04.
     Other than the wind, there were no problems to report.
2nd Half Observing Specialist: Camron Hastings
	Everything went very smoothly. We had an intial problem where the altitude
axis did not init when we made our first slew. I simply issued another 'axis
init' command and it cleared it up. The night sky was clear, the telescope
was pointing very well. We did notice a fair amount of wind shake when
pointed into it. Gusts were as high as 20 mph. In the slit image camera we
could really watch the image bounce when we pointed into the wind, looked
mostly like the secondary was catching the wind.
                  ------- Observer Comments -------
Dan Zucker:
	The night began quite well, as I was able to take narrow-band skyflats
while the sun was setting, and start focusing before astronomical twilight.
Unfortunately, I soon discovered that the wind was blowing from the NW, the
direction of my target galaxy on the sky. While standard star images near
zenith were regularly subarcsecond, images of my galaxy typically had
resolutions ranging from 1.5 to 2 arcseconds, and stars appeared elongated
in some images, probably due to wind shake (the same was true of stellar
images in the guider). The mediocre (and highly variable) seeing toward the
NW was frustrating, but on the plus side there were no telescope or
instrument glitches, the sky was clear, and there were no pesky scattered
light patterns in my data. Thanks to Karen for all her help, both before and
during my official observing time.
Neal Miller:
	This was the best night of APO time I have had to date. The
telescope was very well behaved, with accurate pointing and tracking.
I would like to thank Camron for his help during this first night
of this run, as well as Karen for welcoming us on arrival.
                               FOCUS LOG
                           January 9th 1999
                   Best    Telescope    Temp      Wind          Seeing
 Time  Instrmnt    Focus     Az   El   Air/Truss  Dir MPH  filter FWHM"
----------------------------------------------------------------------
18:05  SPIcam   -200(5889)  279   46   1.0/ 0.0   37  12  H-alpha 1.4 "
18:30  guider  50252(5920)  229   39   0.6/ 0.2  329   4   none   1.8 "
21:00  SPIcam   -200(    )   20   68   0.5/ 0.8  347  11  H-alpha 1.0 "
00:15  DIS      -100(6062) -039   60  -0.6/-0.8  323  16    none  1.33"
                              WEATHER LOG
                           January 9th 1999
                                  Wind
     Time   Temp-F Dewp-F MPH   Direction    Dust      Sky      Precip
    ------------------------------------------------------------------
     16:01    31     1     12    21  (NNE)             Clear      None
     17:01    33    -8      5     9  (N)               Clear      None
     18:01    33     4      8   353  (N)               Clear      None
     19:01    33     3     12   358  (N)               Clear      None
     20:01    33     2      9   329  (NNW)             Clear      None
     21:01    33     3      7   348  (NNW)             Clear      None
     22:01    32     4     15   324  (NW)              Clear      None
     23:01    31     4     16   324  (NW)              Clear      None
     00:01    32     9     14   321  (NW)              Clear      None
     01:01    31     9     14   326  (NW)              Clear      None
     02:01    31     8     18   355  (N)               Clear      None
     03:01    32     9     11   332  (NNW)             Clear      None
     04:01    31     9     22   348  (NNW)             Clear      None
     05:01    30    10     15    11  (N)               Clear      None
     06:01    30    11     24     9  (N)               Clear      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: 2.42a
Current guide software version: GIm Ctrl v3.0b 15.out
- KAG, NCH