From: Russet McMillan
Subject: 3.5m Night Log 20000221
Date: Tue, 22 Feb 2000 06:03:28 -0700 (MST)
                          MONDAY FEBRUARY 21, 2000
                         APACHE POINT OBSERVATORY
                              OBSERVING  LOG
                                                          ACTUAL
ASTRONOMER      OBSERVER(S)        INSTRUMENT   DATE   START FINISH
Krisciunas	Krisciunas	   SPIcam       2/21   18:47 19:47
Gonzalez	Gonzalez	   SPIcam	2/21   19:47 23:58
Wyse		Wyse		   GRIM		2/22   00:23 05:46
 INST        SCHEDULED     WEATH     EQUIP      OBS    DAY   NOTUSED
I/RS/DN    START FINISH   D    B    D    B    D    B   USE   D    B
UW07/R     18:47  19:47  1.0   -    0    -    0    -    0    0    -
UW13/R     19:47  00:10  0.5  3.9   0    0    0    0    0    0    0
JH03/R     00:10  05:46   -   4.7   -    0    -   0.9   0    -    0
(note: times listed include instrument change time)
                              ACTIVITY LOG
(* means a trouble report has been issued or appended to)
First-Half Observing Specialist: Deglman
Did not open due to clouds.  The IRSC failed to properly start
scanning.  Frank broke?  Craig fixed.  SPIcam's TCC connection failed
for UW07.  I never touched SPIcam controls tonight.  Craig fixed.
UW07 took some SPIcam calibration images.
Second-Half Observing Specialist: McMillan
The telescope was opened briefly from 01:15 until 02:10 to take
advantage of a hole in the clouds, but we only had time to focus and
observe a standard before clouds moved in again.  The rest of the time
we were closed due to clouds and snow.
During the open time, the telescope and instrument behaved normally,
but I did find it interesting that the focus was so extremely
negative.  No doubt this was due to the fact that the telescope was
much warmer than the air when we opened, but I had the impression from
my experience that warmer temperature meant *higher* focus.  Is it
possible it could be different for different instruments?  If that's
so, there would be little point in updating the temperature
coefficients for the secondary control (which I had been considering),
unless we move those coefficients to the individual instrument files
rather than default.dat.
                            OBSERVER COMMENTS
                                FOCUS LOG
                             FEBRUARY 21 2000
                                                 Wind
Time   Inst        Focus     Az  El   #Temp    Dir  MPH  filt  FWHM "
01:30 GRIM(f/5) -250(254)   191  52  2.4/5.1   266    7   J    1.28
#First temp is air, second temp is telescope.
                                 WEATHER
                            FEBRUARY 21 2000
                               Wind
     Time   Temp F Dewp F  MPH  Direction    Dust      Sky      Precip.
     17:01    46    20     15   216  (SW)     928     cirrus     none
     18:01    43    20      8   193  (SSW)    965     cirrus     none
     19:01    44    20      9   211  (SSW)   1314     cirrus     none
     20:01    43    21      8   258  (WSW)   1116     cloudy     none
     21:01    44    20     13   229  (SW)    1130     cloudy     none
     22:01    41    20     14   216  (SW)     835     cloudy     none
     23:01    41    18     21   219  (SW)     486     cloudy   sprinkles
     00:01    41    16     18   224  (SW)     454    mstly cldy  none
     01:01    38    16     11   266  (W)      579     ptly cldy  none
     02:01    36    19     10   272  (W)      540     ptly cldy  none
     03:01    34    22     11   265  (W)      950     cloudy     snow
     04:01    34    24     17   252  (WSW)    630     cloudy     none
     05:01    32    26     11   261  (W)      708     cloudy     snow
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.  Current TCC version
is 2.2.2.
- Frank Deglman, Russet McMillan