[evlatests] planet tracking test last thursday

[Bryan Butler]

i did a planet tracking test last thursday.  sequence:

marscal
mars, old style
marscal
mars, old style
marscal
mars, new style
marscal
mars, new style
marscal
venuscal
venus, old style
venuscal
venus, old style
venuscal
venus, new style
venuscal
venus, new style
venuscal

mars was at C-band; venus at L.

"old style" is using PlanetInterferometerModel - basically an internal 
ephemeris where the executor does everything behind the scenes.  "new 
style" is using PolynomialInterferometerModel - using the information in 
the OBSERVE file, on the source and //PM cards (though you have to label 
them as //P2 cards for obs2script to recognize this mode).

now, there were problems starting this file up - first i sent a 
malformed script, then a wierd thing happened with the operator's 
interface, so the operator (after talking to rich) aborted the script 
and restarted it.  basically things didn't really start properly 
observing until scan #6.

i didn't have a chance to look at this data until today, due to problems 
building AIPS on my new laptop, but i had a look today during travel.

i can say that this observation was a spectacular failure.  there is no 
properly correlated data except on a single scan - the first of the 
venus calibrator scans.

i don't know whether this failure was caused by something funky going on 
with the executor during this script or something more fundamental, but 
it seems suspicious that the calibrator scans didn't even work, except 
when there were 2 consecutive ones.  barry - this makes me suspect that 
restoreInterferometerModel was not working properly.  if you want to 
look at the script, it's in /home/mchost/bbutler/test/test2007Oct25.evla

i'll need to do another test this week - is any time tomorrow available? 
  i have real observations tomorrow night of uranus...

	-bryan