Date: Tue, 21 Apr 1998 05:55:36 -0600 (MDT)
From: Tia Hoyes
Subject: 3.5m obslog 980420
                         MONDAY   APRIL  20, 1998
                         APACHE POINT OBSERVATORY
                              OBSERVING  LOG
                                    ACTUAL
ASTRONOMER   INSTRUMENT   DATE   START FINISH
Geha           SPICAM     4/20   19:00 00:30
Ford            DIS       4/20   00:45 05:15
 INST        SCHEDULED      OBS      WEATH     EQUIP   DAY   NOTUSED
I/RS/DN    START FINISH   D    B    D    B    D    B   USE   D    B
NM05/S     21:04 00:30   1.1   0   3.0   0    0    0    0    0    0
JH02/R     01:25 05:01   1.2  1.3  0.8  0.5   0    0    0    0    0
(note: times listed include instrument change time)
                               ACTIVITY LOG
The telescope was opened at 18:00.  Marla Geha and John Holtzman were on sight
to driftscan with SPICAM.  Unfortunately, the seeing was so terrible (3.19")
They could not get much accomplished before I had to close due clouds, dust,
wind, humidity, and bad seeing.
Holland Ford and Zlatan Tsvetanov were observing for the JH02 program. I was
able to open at 2:00, but had to close again at 04:30 due to high humidity.
They stated that other than the lousy weather, everything else was fine.
(* means a trouble report has been issued or appended to)
                               FOCUS LOG
                            APRIL  20, 1998
                Best     Telescope             Wind                 Seeing
Time   Inst     Focus     Az   El   Temp#      Dir  MPH     filter   FWHM "
20:40 SPICAM  -300(5887) 148.2 55.1 1.8/3.85  69.1  22.7      V      3.19
02:30   DIS    +50(64910 256.4 44.0 4.8/1.17 273.0   0.1      IN     1.68
# The first temp is air, the second is truss, both in degrees C.
                                 WEATHER
                             APRIL  20,  1998
                                 Wind
    Time   Temp F Dewp.   MPH.    Dir.       DUST     Sky         Precip.
     16:01    50    13      5    12  (NNE)   1517  partly cloudy   none
     17:01    51    13      3   311  (NW)    1357  partly cloudy   none
     18:01    52    14      1   257  (WSW)   1263  partly cloudy   none
     19:01    42    24      8    27  (NNE)    906  partly cloudy   none
     20:01    37    25     18    70  (ENE)   1001  partly cloudy   none
     21:01    35    25     25    77  (ENE)   1238    clearing      none
     22:01    34    26     21    64  (ENE)   1273  mostly cloudy   none
     23:01    33    26     15    66  (ENE)   1343    overcast      none
     00:01    33    25     15    62  (ENE)   1321    overcast      none
     01:01    34    24     11    61  (ENE)   1271  partly cloudy   none
     02:01    33    24      5    77  (ENE)   1108    clearing      none
     03:01    42    20      1   296  (WNW)   1417     clear        none
     04:01    33    22      4    87  (E)      952     clear        none
     05:01    30    26     17    68  (ENE)   1336     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: 2.39
Current guide software version:GIm Ctrlv3.0b11.
-Tia
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