From: "Camron Hastings"
Subject: 3.5-meter night log 981206
Date: Mon, 7 Dec 1998 04:27:23 -0700
			      Sunday, December 6th 1998
			     APACHE   POINT  OBSERVATORY
				 3.5-meter Observing Log
                                 ACTUAL
----------------------------------------------------------------------
ASTRONOMER      OBSERVER(S)      INSTRUMENT     DATE     START  FINISH
----------------------------------------------------------------------
Turner          Gloria           DIS           12/6      18:24  19:14
Strauss         Fan, Richards    DIS           12/6-7    19:14  00:10
York                             Echelle       12/7      00:10  05:25
----------------------------------------------------------------------
 INST        SCHEDULED     WEATH     EQUIP      OBS      DAY   NOTUSED
I/RS/DN    START  FINISH   D    B    D    B    D    B    USE   D    B
----------------------------------------------------------------------
PU01/S     18:24 19:14     0    -    0    -   0.8   -     0    0    -
PU02/R     19:14 00:10    0.5  3.7   0    0   0.8   0     0    0    0
EN03/S     00:10 05:25     -   5.3   -    0    -    0     0    -    0
                     -------- ACTIVITY LOG --------
1st half Observing Specialist: Karen Gloria
    I inspected the enclosure roof this afternoon and found it to be
clear of snow and ice.  The site received 2-3 inches of snow last night,
all of which fell in the space of about 1.5 hours.
    The telescope was opened at 17:30.  I observed with DIS for
PU01(SPIcam is temporarily out of service).  The seeing was rather poor.
Xiaohui Fan and Gordon Richards observed for PU02, also with poor
seeing.  The sky began to cloud up and the telescope was closed at
20:00.
2nd half Observing Specialist: Camron Hastings
    When I came on shift the clouds were set in. Snow started soon after
1am but ceased after 2am. I started the snow program and let it run
while I was here. I left the dome pointed south and if it is sunny
tomorrow it would be good if someone could turn on the roof heaters.
    It should be noted that tonight I switched to our last full tank of
LN2 up in the enclosure. Karen filled the echelle today, so it should be
fine for a few days and the new LN2 tank should last a few days as well
barring any DIS problems.
   				       FOCUS LOG
                           December 6th 1998
                   Best    Telescope  Temp (C)    Wind          Seeing
 Time  Instrmt    Focus     Az   El   Air/Truss  Dir MPH  filter FWHM"
----------------------------------------------------------------------
17:50  DIS     -250(5709)  186   60  -6.2/-2.8   246  22   r     2.2"
18:15  DIS     -275(5629)  199   59  -6.1/-4.5   245  27   r     2.8"
18:35  DIS     -100(5774)  176   58  -5.8/-5.2   268  20   r     2.0"
19:25  guider 54500(5791)  218   51  -5.2/-5.5   268  13  none   1.9"
                               WEATHER LOG
                            December 6th 1998
                                  Wind
     Time   Temp-F Dewp-F MPH   Direction    Dust      Sky      Precip
    ------------------------------------------------------------------
     16:01    23    13     19   212  (SSW)            clear      none
     17:01    20    12     14   201  (SSW)          ptly cldy    none
     18:01    21     9     20   254  (WSW)          ptly cldy    none
     19:01    22     8     22   254  (WSW)          ptly cldy    none
     20:01    22    11     25   236  (SW)           mstly cldy   none
     21:01    22    13     20   265  (W)            ptly cldy    none
     22:01    22    14     29   253  (WSW)          mstly cldy   none
     23:01    20    15     23   235  (SW)           mstly cldy   none
     00:01    20    17     24   250  (WSW)            Cloudy     none
     01:01    18    17     15   259  (W)              Cloudy     snow
     02:01    15    13     21   248  (WSW)            cloudy     snow
     03:01    13     9     17   244  (WSW)            cloudy     none
     04:01    12    10     20   283  (WNW)          mstly cldy   none
     05:01    12    11     19   279  (WNW)           ptly 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: 2.42a
Current guide software version: GIm Ctrl v3.0b 15.out
- KAG, NCH