Date: Wed, 11 Nov 1998 06:04:22 -0700 (MST)
From: Russet McMillan
Subject: 3.5m Night Log 981110
                         TUESDAY NOVEMBER 10, 1998
                         APACHE POINT OBSERVATORY
                              OBSERVING  LOG
                                                          ACTUAL
ASTRONOMER      OBSERVER(S)        INSTRUMENT   DATE   START FINISH
Turner           Gloria              SPIcam    11/10   18:30 19:20
Lamb             Castander           SPIcam   11/10-11 19:20   -
Wyse             Wyse                GRIM2     11/11     -     -
 INST        SCHEDULED      OBS      WEATH     EQUIP   DAY   NOTUSED
I/RS/DN    START FINISH   D    B    D    B    D    B   USE   D    B
PU01/S     18:31 19:21   0.4   -    0    -   0.4   -    0    0    -
DD02/R     19:20 00:10    0    0    0    0   4.4  0.5   0    0    0
JH02/G     00:10 05:05    -    0    -    0    -   4.9   0    0    0
(note: times listed include instrument change time)
                               ACTIVITY LOG
(* means a trouble report has been issued or appended to)
1st half observing specialist: Karen Gloria
The telescope was opened at 17:45 MST.  Francisco Castander opted to
use SPIcam instead of DIS.  I observed for the lens monitoring run.
The first images showed poor collimation and didn't come to a tight
focus.  The fwhm was around 1.5", but the images were asymetric.  I
suspect the actual seeing was closer to 1.0".  Pointing was about 100
arcsec high in altitude.  Around the beginning of Francisco's time we
started getting double images with widely varing image quality.  Jon
Davis came in to check and tune the primary mirror support system
(PMSS).  The PMSS was unstable and wasn't responding well to attempts
to tune it.  After several hours it was decided to call it for the
night and try again in the morning.
2nd half observing specialist: Russet McMillan
Ditto.
                             OBSERVER COMMENTS
DD02 (Castander): Weather conditions fine.  We started observing at
  19:35 as scheduled.  Exposures a few minutes long showed double
  images of the same object. We stopped observing at 20:55 (Mountain
  time) to check the problems that were causing the double images. We
  did not open for the rest of the allocated time as checks of the
  primary support system continued.
                                 FOCUS LOG
                              NOVEMBER 10 1998
						 Wind
Time   Inst       Focus      Az  El   #Temp    Dir  MPH  filt  FWHM "
18:30 SPIcam  + 50(6014)    156  58 -1.4/+0.7  334   4    r'    1.4
18:35 guider 48000(6004)    160  59 -0.9/+0.7  329  15    R     1.6
#First temp is air, second temp is telescope.
                                  WEATHER
                              NOVEMBER 10 1998
                               Wind
     Time   Temp F Dewp F  MPH  Direction    Dust      Sky      Precip.
     16:01    31   -16      6     2  (N)              clear      none
     17:01    30   -16     12   350  (N)              clear      none
     18:01    30   -11      3   341  (NNW)            clear      none
     19:01    30     0     14   331  (NNW)            clear      none
     20:01    32     4     13   293  (WNW)            clear      none
     21:01    34   -13     14   296  (WNW)            clear      none
     22:01    34   -13     14   297  (WNW)            clear      none
     23:01    34   -12     13   294  (WNW)            clear      none
     00:01    33    14     12   282  (WNW)            clear      none
     01:01    34   -13     17   294  (WNW)            clear      none
     02:01    34   -11     10   294  (WNW)            clear      none
     03:01    36    -1     14   282  (WNW)            clear      none
     04:01    35    21     16   267  (W)              clear      none
     05:01    35    25     12   251  (WSW)            clear      none
     06:01    34    23     12   248  (WSW)            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 Ctrlv3.0b15.
- Karen Gloria, Russet McMillan