Date: Sat, 20 Dec 1997 05:14:25 -0700 (MST)
From: Karen Gloria
Subject: 3.5-m obslog 971219
                         FRIDAY DECEMBER 19, 1997
                         APACHE POINT OBSERVATORY
                              OBSERVING  LOG
                                    ACTUAL
ASTRONOMER   INSTRUMENT   DATE   START FINISH
Adler           DIS      12/19   16:59 18:29
Turner          DIS      12/19   18:29 19:10
Wyse           GRIM2   12/19-20  19:10 20:55
 INST        SCHEDULED      OBS      WEATH     EQUIP   DAY   NOTUSED
I/RS/DN    START FINISH   D    B    D    B    D    B   USE   D    B
UC09/R     16:59 18:29    -    -    -    -    -    -   1.5   -    -
PU01/S     18:29 19:10   0.7   -    0    -    0    -    0    0    -
JH01/S     19:10 05:33   1.8   0   1.6  7.0   0    0    0    0    0
(note: times listed include instrument change time)
                               ACTIVITY LOG
(* means a trouble report has been issued or appended to)
The telescope was opened at 17:00 MST.  The sky was mostly clear,
despite the impending snow storm, and remained so until 21:00 MST.
The seeing was poor, probably due to the strong easterly wind.
Gordon Richards was the observer for the Adler program.  He took DIS
images of Neptune.  Some of his fits images were swamped by large
negative pixel values.  I haven't sorted out why this happened.
I was the observer for PU01.  I observed one gravitational lens
field.  The measured seeing was 2 arcsec.
Rosie Wyse and Gerry Gilmore were the observers for JH01.  They
continued their program on cluster binaries.  The seeing was quite bad
by this time (3.6 arcsec in J), but we were pleasantly surprised that
the sky was still clear.
			     OBSERVER COMMENTS
Rosie Wyse, Gerry Gilmore (JH01) - Thursday night (12/18) was perfect
except for the focus drifting.  Tonight the weather was garbage.
                                FOCUS LOG
                             DECEMBER 19 1997
                  Best   Telescope           Wind            Seeing
Time   Inst      Focus    Az  El    #Temp   Dir MPH  filter  FWHM "
18:35   DIS     0(6256)  226  52   1.6/3.0   79  12    r      2.0
19:30  GRIM2  -50(6362)   78  29   0.3/1.3   76  19    J      3.6
#The first temp is air, the second is truss, both in degrees Celsius
                                 WEATHER
                             DECEMBER 19 1997
                                   Wind
    Time  Temp F  Dewp. F  MPH.	  Dir.       Dust    Sky        Precip.
     16:01    38    15      1   244  (WSW)    378   cirrus       none
     17:01    36    12      1   246  (WSW)    386   clear        none
     18:01    35     8      9    85  (E)      384   clear        none
     19:01    34    12     16    74  (ENE)    527   clear        none
     20:01    32    11     20    75  (ENE)    583   clear        none
     21:01    31     8     25    77  (ENE)    614  mstly cldy    none
     22:01    24    20     45    71  (ENE)   2177  mstly cldy    none
     23:01    23    21     46    71  (ENE)   3101  overcast      none
     00:01    22    21     39    71  (ENE)   2139  overcast      none
     01:01    21    20     28    81  (E)     1823  overcast      none
     02:01    24    21     19    93  (E)     1849  overcast      none
     03:01    24    23     19    95  (E)     1173    fog       lt. snow
     04:01    22    20     27    78  (ENE)    447  overcast    lt. snow
     05:01    24    22     19    85  (E)      342  overcast    lt. snow
note: the wind was coming from the azimuth listed.  The convention
used is north=0 degrees, east=90 degrees. The dust count is 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: 2.36.
Current guide software version: GIm Ctrlv3.0b11.
-Karen