Brooke,

The problem in radio ground observation can be resolution accuracy, but there's also a good transmission into far infrared wavelengths, which could require smaller dishes to get stellar images. The problem of far IR is the cost of right filters/sensor, which are a bit difficult to find.

Radio objects, on the other hand, can be solved using an interferometer: LOFAR interferometers work at frequencies higher than 10MHz, frequencies totally transparent to the atmosphere and easily computable even by consumer PCs. There is some work done with common PCs using two RTL-SDR dongles and two satellite dishes.

see http://www.sbrac.org/files/DTP_RX.pdf

Best Regards,

Ilia.


On 12/30/16 17:18, Brooke Clarke wrote:
Hi Anders:

That's something I've thought about for decades using an optical system. A few years ago I looked at it again and found that astronomical "seeing" limits the accuracy. So the accuracy achieved by a spaceborne "Stellar compass" will be much better than a ground based observation. A radio based observation might work since the atmosphere would not be a factor.
http://www.prc68.com/I/StellarTime.shtml


--
Ilia Platone
via Ferrara 54
47841
Cattolica (RN), Italy
Cell +39 349 1075999

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