Re: Pioneer Anomoly

In message <BJpse.1238$eV4.710@fed1read01>, "N:dlzc D:aol T:com (dlzc)" <N@?.D.invalid> writes 
Dear Tom Kirke:

"Tom Kirke" <tomkirke@xxxxxxx> wrote in message
news:tomkirke-1606051129530001@xxxxxxxxxxxxxxxxxxxxxx

ArXiv has posted an interesting paper about the Pioneer
Anomoly.

Not surprisingly the main conclusion is that we should
send another mission to the outer Solar System.  If
nothing else this would give us a second data point.


There were 4 or 5 missions, each with slightly different
anomalies, starting at different points.  Cassini was designed to
not have the identified defects on the earlier spacecraft, and no
anomaly has been noted in its flight path.


I think you'll find that both Ulysses and Galileo show at least a hint of the same anomaly with the same magnitude. The Voyagers don't show it because they aren't spin stabilised so they aren't stable enough.
And John Anderson thinks Cassini doesn't show the effect because of uncertainties in thermal emission, though I'm almost sure he's wrong.
There are grounds for new measurements.
.

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