[evlatests] planet tracking

[Walter Brisken]

Bryan,

for testing purposes, would be be smart to make a fictitious moving object 
centered around a very bright point source with excursions of ~1 beam? 
This way one could use power and phase measurements on short baselines to 
verify the antenna's motion and the delay center tracking respectively?.

On Tue, 2 Sep 2008, Bryan Butler wrote:

>
> i've tested this again, at K-band.  it's clear that there is an offset
> in the "polynomial" style tracking.  it's harder to tell with the
> internal ephemeris style, because i can't self-cal and the data was
> taken during day time last week so the phase is not what one might like
> for such an experiment.  if i can get some time, i will try this again
> with jupiter, which is at least an early nighttime object, to see if i
> can hit better phase conditions.  i'll summarize all of this at this
> morning's test meeting.
>
> 	-bryan
>
>
> Bryan Butler wrote:
>> i tested planet tracking yesterday by looking at venus at X-band.  as
>> far as i can tell, both modes of tracking, with the internal ephemeris,
>> and by specifying a polynomial, work, and work equally well.
>>
>> i would like to do one more test, at higher frequency, before signing
>> off on this, but it looks pretty good at this point.
>>
>> 	-bryan
>>
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