Date: Tue, 16 Jun 1998 06:08:27 -0600 (MDT)
From: Tia Hoyes
Subject: 3.5m obslog 980615
                         SUNDAY   JUNE  14, 1998
                         APACHE POINT OBSERVATORY
                              OBSERVING  LOG
                                    ACTUAL
ASTRONOMER       OBSERVER          INSTRUMENT   DATE   START FINISH
Gillespie        Hoyes            SPICAM/GUIDER 6/15   20:15 23:30
York             Rockosi             SPICAM     6/15   00:08 03:50
Turner           Hoyes               SPICAM     6/15   03:53 06:30
 INST        SCHEDULED      OBS      WEATH     EQUIP   DAY   NOTUSED
I/RS/DN    START FINISH   D    B    D    B    D    B   USE   D    B
EN01/O     21:55 04:13   2.7  3.7   0    0    0    0    0    0    0
(note: times listed include instrument change time)
                               ACTIVITY LOG
The telescope was open tonight at 18:10.
The EAGAL instrument took twilight time for testing and preparing for
tomorrow's run.
I began the pointing model at 21:00 after focusing SPICAM and the GUIDER.
I did a 70 point pointing model. The coeff. that changed the most was the index
error in azimuth(IA).  The new pointing model has been implemented.
Connie Rockosi was observing for the second part of the evening. This was time
to replace some of the time lost earlier in the week.
Comments:A very productive night with clear skies and good seeing near the end,
at least in the near IR.  There is a new (since my last 3.5m time)
artifact in the first driftscan after a snapshot frame, wherein the
last buffer never gets read, or at least never written to a file.
Control-C or a timeout will end the scan, and everything works fine on
all subsequent scans until another snapshot frame is taken.
I was also able to observe for the Lens Monitoring program.  I observed 2237.
(* means a trouble report has been issued or appended to)
                               FOCUS LOG
                             JUNE  15, 1998
                Best     Telescope               Wind                 Seeing
Time   Inst     Focus     Az    El   Temp#      Dir  MPH     filter   FWHM "
20:55 SPICAM -300(6437) 133.7  46.4 14.6/15.96 227.7 15.0      r'     1.77
21:15 GUIDER   50000    146.4  51.6 14.7/15.77 226.5 19.8    empty    1.17
00:35 SPIACM -300(6275)   9.3  80.1 14.0/14.02 269.1 18.5      r'     1.26
03:30 SPICAM -280(6329) 300.2  54.1 13.0/13.19 285.0 13.8      z'     0.67
# The first temp is air, the second is truss, both in degrees C.
                                 WEATHER
                               JUNE  15,  1998
                                 Wind
    Time   Temp F Dewp.   MPH.    Dir.       DUST     Sky         Precip.
     16:01    67    30     24   290  (WNW)    362  partly cloudy   none
     17:01    66    26     14   269  (W)      349  partly cloudy   none
     18:01    63    25     13   268  (W)      430  partly cloudy   none
     19:01    64    27     16   234  (SW)     431     clearing     none
     20:01    60    26     15   216  (SW)     427     clearing     none
     21:01    59    23     16   233  (SW)     371     clear        none
     22:01    59    23     21   224  (SW)     454     clear        none
     23:01    57    22     15   249  (WSW)    474     clear        none
     00:01    58    23     12   265  (W)      399     clear        none
     01:01    57    26     22   261  (W)      445     clear        none
     02:01    56    27     17   273  (W)      482     clear        none
     03:01    55    26     16   293  (WNW)    469     clear        none
     04:01    54    27     14   297  (WNW)    390     clear        none
     05:01    55    26     13   268  (W)      454     clear        none
     06:01    55    25     12   265  (W)      452     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: 2.41a
Current guide software version:GIm Ctrl v3.0b 15.out
-Tia