From: "Camron Hastings"
Subject: 3.5-meter Night Log 980705
Date: Mon, 6 Jul 1998 04:25:52 -0600
			        Sunday, July 5th 1998
			     APACHE   POINT  OBSERVATORY
				 3.5-Meter Observing Log
                                 ACTUAL
 ASTRONOMER      OBSERVER(S)      INSTRUMENT    DATE     START  FINISH
----------------------------------------------------------------------
 Johnson         Johnson	    DIS         7/04-05    21:56  03:25
 Turner          C. Hastings      SPIcam        7/05     03:55  04:20
 INST        SCHEDULED       OBS      WEATH     EQUIP    DAY   NOTUSED
I/RS/DN    START FINISH    D    B    D    B    D    B    USE   D    B
----------------------------------------------------------------------
NM08/R    21:56  03:25     0    0    0   5.5   0    0     0    0    0
PU01/S    03:55  04:20     0    0   0.4   0    0    0     0    0    0
					ACTIVITY LOG
	The enclosure opening was delayed by cloud-cover this evening,
though we did finally open at 22:10. There was no threatening weather
at the outset of the evening, but the impenetrable cloud cover brought
about the decision to close again at 22:50. There was no usable science
data taken during this interval.
	We remained optimistic until, at ~01:10, the dew-point rose 5 degrees,
the temperature dropped 5 degrees, leaving us with a dew-point
depression
of 0.9 degrees. The dust jumped some 2000 counts, and the humidity hit
95%! These changes occurred in about 15 minutes! I then shut the
enclosure
down tight (fans off & louvers closed) against the threatening rain, and
remained so for the rest of the night.
NOTE: Tonight is the final night for science observing at APO due to the
July engineering shutdown. Shutdown will begin on Monday, July 6th, and
continue through July 24th, at which time we will be online again.
	The following week will be spent testing the upgrades and repairs
before returning to science data on the targeted date of August 1st.
During this interval there will be no night logs, but they will resume
upon the return to science observing.
*** See you on August 1st! Same great time, same great channel....
- Cam
                               FOCUS LOG
                            July 5th, 1998
                 Best     Telescope   Temp      Wind           Seeing
Time   Instrmt   Focus     Az  El   Air/Truss   Dir MPH  filter  FWHM"
----------------------------------------------------------------------
		  -------- No Focus Data This Night --------
                              WEATHER LOG
                            July 5th, 1998
                                  Wind
     Time   Temp-F Dewp-F MPH   Direction    Dust      Sky      Precip
    ------------------------------------------------------------------
     16:01    65    52      1   332  (NNW)    752     Cloudy     None
     17:01    69    52      2   290  (WNW)    745     Cloudy     None
     18:01    69    49      8   268  (W)      629     Cloudy     None
     19:01    65    48      5   271  (W)      702     Cloudy     None
     20:01    63    50      0   240  (WSW)   1119     Cloudy     None
     21:01    63    49      5   183  (S)      805     Cloudy     None
     22:01    61    51      9   176  (S)      930     Cloudy     None
     23:01    62    51     12   198  (SSW)    839     Cloudy     None
     00:01    62    51      8   183  (S)     1008     Cloudy     None
     01:01    57    54     12   169  (SSE)   1712     Cloudy     None
     02:01    55    55      4   103  (ESE)    461   Cloudy/Fog   None
     03:01    53    53     11   189  (S)      426   Cloudy/Fog  Light
     04:01    54    54     14   182  (S)     1106   Cloudy/Fog   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: 2.41a
Current guide software version: GIm Ctrl v3.0b 15.out
- Camron Hastings