Date: Mon, 31 Aug 1998 06:12:46 -0600
From: tia@tycho.apo.nmsu.edu (Tia Hoyes)
Subject: 3.5m obslog 980830
                         SUNDAY   AUGUST 30, 1998
                         APACHE POINT OBSERVATORY
                              OBSERVING  LOG
                                    ACTUAL
ASTRONOMER       OBSERVER          INSTRUMENT   DATE   START FINISH
Szkody           Tovmassian           DIS       8/30   19:15 05:45
 INST        SCHEDULED      OBS      WEATH     EQUIP   DAY   NOTUSED
I/RS/DN    START FINISH   D    B    D    B    D    B   USE   D    B
UW04/S     20:56 01:10   0.3  4.0   0    0    0    0    0    0    0
UW04/S     01:10 05:12   3.3   0   0.8   0    0    0    0    0    0
(note: times listed include instrument change time)
                               ACTIVITY LOG
The telescope was opened at 19:15.  Gaghik Tovmassian was on site observing
for the UW04 program.
COMMENTS:We observed optical counterpart of ROSAT X-ray source RX J2157+08.
The object was identified as polar - magnetic CV from previous
low-resolution spectrophotometry. The orbital period of the system is about
 3.5
hours.
The aim of the observation  is to obtain high reslution , high temporal
reslution spectrscopy for study of different components of the binary system.
The run started smoothly, everyting was operating well. We had to
interupt observations at 2:30 a.m. for an hour because of high humidity.
However it went down eventually and we were able to resume observations.
These allows us to cover a little bit less than two orbital periods of the
system. We plan to complete another period tomorrow.
We appreciate very much highly professional assistance of Tia Hoyes
during observations.
G.Tovmassian, P.Szkody
Forecast:(4:30am)
.TODAY...PARTLY CLOUDY WITH WIDELY SCATTERED AFTERNOON THUNDERSTORMS.
.TONIGHT...PARTLY CLOUDY WITH WIDELY SCATTERED EVENING THUNDERSTORMS.
.TUESDAY...PARTLY CLOUDY WITH SCATTERED AFTERNOON THUNDERSTORMS.
(* means a trouble report has been issued or appended to)
                               FOCUS LOG
                             AUGUST 30, 1998
                Best     Telescope               Wind                 Seeing
Time   Inst     Focus     Az    El   Temp#      Dir  MPH     filter   FWHM "
20:20  DIS   +150(7107) 98.8  28.1  15.2/17.3  238.8 3.2       IN     1.53
***nudged focus during evening according to slit viewer images****
# The first temp is air, the second is truss, both in degrees C.
                                 WEATHER
                             AUGUST 30,  1998
                                 Wind
    Time   Temp F Dewp.   MPH.    Dir.       DUST     Sky         Precip.
     16:01    67    33      4   274  (W)      675    clear         none
     17:01    66    33      7   261  (W)      639    clear         none
     18:01    67    32      3   199  (SSW)    492    clear         none
     19:01    62    30      3   211  (SSW)    469    clear         none
     20:01    60    30      1   173  (S)      638    clear         none
     21:01    57    32     16   125  (SE)     657    clear         none
     22:01    56    40     20   128  (SE)     551 light cirrus     none
     23:01    54    44     16   131  (SE)     607 light cirrus     none
     00:01    53    44     13   112  (ESE)    649    clear         none
     01:01    52    45     17   128  (SE)     665    clear         none
     02:01    52    47     11   131  (SE)     892    clear         none
     03:01    52    45      8   105  (ESE)    915    clear         none
     04:01    53    41      9   108  (ESE)    630    clear         none
     05:01    55    33      4    86  (E)      545    clear         none
     06:01    51    43      7    88  (E)      797    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 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
-Tia