[mmaimcal] draft results of holography sensitivity calculations

[Jeff Mangum]

Rephrasing below...

"Bryan" == Bryan Butler <bbutler at nrao.edu> writes:

Bryan> i haven't been following this entire discussion very closely, but in 
Bryan> skimming jeff's last reply ran across the appended statement, with which 
Bryan> i disagree.  seems to me you will always want to do the final panel 
Bryan> setting via interferometric holography.  gets you around some of the 
Bryan> potential errors from doing it from a tower (near field; ground clutter; 
Bryan> optics differences [if done with a special holography rx]; etc...). 
Bryan> with the sensitivity of ALMA, you'll be able to find bright enough 
Bryan> sources (certainly the SiO masers at least).

Bryan> whether you want to set the panels up at the high site or not is an 
Bryan> operational/safety issue...

Bryan> 	-bryan


Bryan> On 12/5/04 08:49, Jeff Mangum wrote:
>> 
>> As I said above, interferometric holography serves only one purpose,
>> to check the elevation dependence of the surface.  I believe that this
>> can be done with low-spatial resolution measurements.
>> 

Should have said "...interferometric holography at the OSF...".

--- Jeff