Date: Fri, 5 May 2000 05:55:16 -0600 (MDT)
From: Frank Deglman
Subject: 3.5m Night Log 20000504
                          THURSDAY MAY 04, 2000
                         APACHE POINT OBSERVATORY
                              OBSERVING  LOG
                                                          ACTUAL
ASTRONOMER      OBSERVER(S)        INSTRUMENT   DATE   START FINISH
Stubbs		Stubbs		   SPIcam	5/04   20:10 00:48
Kent		Annis, Kent	   DIS		5/05   01:13 05:30
 INST        SCHEDULED     WEATH     EQUIP      OBS    DAY   NOTUSED
I/RS/DN    START FINISH   D    B    D    B    D    B   USE   D    B
UW04/R     20:46 01:00    0    -    0    -   4.2   -    -    0    -
UC01/R     01:00 05:14	  0    -   0.1   -   4.1   -    -    0    -
(note: times listed include instrument change time)
                              ACTIVITY LOG
(* means a trouble report has been issued or appended to)
Observing Specialist: deglman
During afternoon checkout the PMSS desiccant appeared pink.  ESS6 light
bulb was found inoperative.*  Had to stop (and restart) DIMM at the laptop
for displaying (and logging?) of current data.
Image motion was evident in SPIcam frames, eg.
/export/images/dls.may05.0021.  Opened primary mirror LVDT monitor, no
obvious PMSS problems were seen.  The secondary nor the guider were being
pistoned during exposures.  Did not appear to be tracking error, for the
size was independent of exposure time.  From the guider images it was
apparently an oscillation of about 1-1/2 arcsec in amplitude and on the
order of ten seconds in time, eg. /export/images/guider/gimg0520.fits.
Took a Shack-Hartmann frame of SAO 137891 for later analysis.
Later with DIS, this motion was still seen in the slit viewer images.  The
rotator died.  Not binding, just quit moving.  It took several axis
initializations to get it going again.
Closed at 05:20.  Some calibration spectra were then done.
                            OBSERVER COMMENTS
                                FOCUS LOG
                             MAY 04 2000
Time   Instrument   Focus     Az  El   #Temp     Dir  MPH  filt   FWHM "
20:35   SPIcam	  -50(813)   170  52 16.7/18.7   273    5   V	  1.2
20:45   NA2gdr    -850 					   none   1.2
01:20   DISslit	  150(976)   202  55 15.5/14.9   292   11  none   1.41
01:25   NA2gdr	   398					   red    1.15
#First temp is air, second temp is telescope.
                                 WEATHER
                             MAY 04 2000
                               Wind
     Time   Temp F Dewp F  MPH  Direction    Dust      Sky      Precip.
     18:01    71    23     10   283  (WNW)   1214     clear      none
     19:01    67    21      7   261  (W)     1019     clear      none
     20:01    63    17      7   291  (WNW)   1167     clear      none
     21:01    62    17      6   284  (WNW)   1211     clear      none
     22:01    61    16      7   244  (WSW)   1168     clear      none
     23:01    60    16      5   264  (W)      937     clear      none
     00:01    60    16      7   270  (W)      976     clear      none
     01:01    58    14      5   268  (W)     1051     clear      none
     02:01    60    16      5   265  (W)     1071     clear      none
     03:01    59    14     12   316  (NW)    1070     clear      none
     04:01    58    14      6   343  (NNW)   1191     clear      none
     05:01    58    14      7   352  (N)     1237     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: 2.55b5.
Current guide software version: GIm Ctrlv3.0b27.  Current TCC version
is 2.2.5.
- frank