Date: Mon, 23 Mar 1998 05:45:06 -0700 (MST)
From: Tia Hoyes
Subject: 3.5m obslog 980322
                        SUNDAY   MARCH  22, 1998
                         APACHE POINT OBSERVATORY
                              OBSERVING  LOG
                                    ACTUAL
ASTRONOMER   INSTRUMENT   DATE   START FINISH
Fan              DIS      3/22   16:30 05:40
 INST        SCHEDULED      OBS      WEATH     EQUIP   DAY   NOTUSED
I/RS/DN    START FINISH   D    B    D    B    D    B   USE   D    B
PU02/S     19:39 04:41   7.1  1.9   0    0    0    0    0    0    0
(note: times listed include instrument change time)
                               ACTIVITY LOG
The telescope was opened at 18:05.
Michael Strauss and Xiaohui Fan were on site to observe for the PU02 program.
Comments: We observed all night and got good data on our galaxies, despite
variable and occassionally thick cirrus.  We lost a little time to DIS being
hung after we accidentally issued a sync command during an exposure, but
overall the observing was quite efficient.  We noticed a little trouble with
tracking at the beginning of the night when pointing at a bright star near
zenith.  It was drifting about a .5 an arcsec per minute on the unguided
exposures.
(* means a trouble report has been issued or appended to)
                               FOCUS LOG
                            MARCH  22, 1998
                Best     Telescope             Wind                 Seeing
Time   Inst     Focus     Az   El   Temp#      Dir  MPH     filter   FWHM "
18:45  DIS  +150(6624) 110.0 65.0 8.7/8.99   336.4  9.7       IN     1.42
19:15 GUIDER    52000   98.8 62.9 8.6/8.68   314.3  7.0      empty   1.56
21:15  DIS  -100(----)  98.8 43.2 6.2/8.11   269.0  8.5       IN     1.61
21:15 GUIDER    53000   98.8 43.2 6.2/8.11   269.0  8.5      empty   1.38
01:15  DIS     0(6371) 215.5 85.7 8.3/7.58   271.2 14.8       IN     1.12
# The first temp is air, the second is truss, both in degrees C.
                                 WEATHER
                             MARCH  22,  1998
                                 Wind
    Time   Temp F Dewp.   MPH.    Dir.       DUST     Sky         Precip.
     16:01    52    14     12   293  (WNW)    343  light cirrus    none
     17:01    49    12      9   303  (WNW)    260  light cirrus    none
     18:01    48    11      7    31  (NNE)    289  light cirrus    none
     19:01    48    12      8   300  (WNW)    279     cirrus       none
     20:01    46    11      9   275  (W)      349     cirrus       none
     21:01    48    11     10   274  (W)      315     cirrus       none
     22:01    44    11      8   224  (SW)     317  partly cloudy   none
     23:01    45    12     10   261  (W)      383  partly cloudy   none
     00:01    46    10      8   271  (W)      390  partly cloudy   none
     01:01    46     9     15   272  (W)      331  partly cloudy   none
     02:01    47    10     12   278  (W)      349  light cirrus    none
     03:01    46    27     11   313  (NW)     384  partly cloudy   none
     04:01    46    14     15   325  (NW)     333  partly cloudy   none
     05:01    45    16      8   331  (NNW)    408  partly cloudy   none
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: 2.39
Current guide software version:GIm Ctrlv3.0b11.
-Tia