From: Russet McMillan
Subject: 3.5m Night Log 991216
Date: Fri, 17 Dec 1999 06:11:21 -0700 (MST)
                          THURSDAY DECEMBER 16, 1999
                         APACHE POINT OBSERVATORY
                              OBSERVING  LOG
                                                          ACTUAL
ASTRONOMER      OBSERVER(S)        INSTRUMENT   DATE   START FINISH
Staff         Deglman, Loomis          all    12/16-17 18:30 05:30
                 McMillan
 INST        SCHEDULED     WEATH     EQUIP      OBS    DAY   NOTUSED
I/RS/DN    START FINISH   D    B    D    B    D    B   USE   D    B
EN02/S     17:57 06:01    0    0   0.5  0.6  4.3  6.6   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: Loomis, Deglman
The telescope was opened at 18:30 MST.  Opening was delayed by setup
of the Shack-Hartmann device.  The sky was partly to mostly cloudy,
with thick cirrus.  One of the Forest Service controlled burns flared
up (the wind was gusty) near the lower end of the Observatory
driveway.  Sunspot fire personnel were contacted.
Minor changes were made to the DIS and GrIm2 instrument blocks and
these checked.
*Error messages were coming from the tertiary controller, and one of
the motors wouldn't move.  The problem cleared after the controller
was reset and rehomed.
Tertiary tip tilts were checked for NA1.  Adjustments are being made
during the 2nd half of the night...
2nd half observing specialist: McMillan
Second half remained mostly clear, with patchy cirrus and variable
seeing (the best obtained with SPIcam was 0.88 arcsec, very comparable
to the DIMM output at the time).  I spent some time confirming the
tertiary tip/tilts for NA1, both by placing a star on the NA2
boresight and then rotating, and by checking the pointing in various
parts of the sky.  Eventually I decided the values obtained last night
were adequate; almost all stars appeared within ten arcseconds of the
slit, and most were within five arcseconds.  Once I had settled on the
tip/tilt values, I updated the scale and orientation portions of the
echelle instrument block.
After that, I spent an hour confirming that two people (or at least
one healthy person) are required to mount the Shack-Hartmann camera.
By the time I gave up, it was too late to obtain useful data.  Some
form of instrument lift for that mounting plate would be very helpful.
                            OBSERVER COMMENTS
                                FOCUS LOG
                             DECEMBER 16 1999
						 Wind
Time   Inst        Focus     Az  El   #Temp    Dir  MPH  filt  FWHM "
19:00   DIS      100(998)   290  44  0.9/1.8    12   28    r    1.6
20:30  GrIm2    -100(774)   237  49  0.5/0.7    25   11    J    1.1
23:40  Echelle    50(-166)  190  63  0.3/0.0    20   10  ND 1   1.5
#First temp is air, second temp is telescope.
                                 WEATHER
                             DECEMBER 16 1999
                               Wind
     Time   Temp F Dewp F  MPH  Direction    Dust      Sky      Precip.
     16:01    33    15     16     6  (N)       39    cirrus      none
     17:01    32    14      7    32  (NNE)     38    cirrus      none
     18:01    35    14     21    24  (NNE)     87    cirrus      none
     19:01    34    12     23   358  (N)      157    cirrus      none
     20:01    33    12     16   351  (N)      122   hvy cirrus   none
     21:01    33    14     18    25  (NNE)    240    cirrus      none
     22:01    32    13     10    29  (NNE)    127    cirrus      none
     23:01    32    13     14    36  (NE)     414    cirrus      none
     00:01    32    13     14    48  (NE)     385    cirrus      none
     01:01    36    13     13   346  (NNW)    194   mstly clr    none
     02:01    34    13     13   345  (NNW)     94   mstly clr    none
     03:01    34    13      3   358  (N)      132   mstly clr    none
     04:01    36    13     13   316  (NW)     184   mstly clr    none
     05:01    36    11     16     8  (N)      114   mstly clr    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: 2.55b5.
Current guide software version: GIm Ctrlv3.0b27.
- Karen Loomis, Russet McMillan