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Ybys - definition please

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Ybys - definition please was created by Diane ODonovan

I have encountered this term and cannot find a definition for it. Can anyone assist please?

:?
".. the Carthaginian captain Hamilar saw in Birttany about 600bc .. skin boats which were making (so he reported) the three hundred mile crossing to the holy island of Ierne (Eire)"
16 years 4 days ago #40178

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Replied by dmcdona on topic Re: Ybys - definition please

Where did you encounter it Diane?
16 years 4 days ago #40180

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Replied by mjs on topic Re: Ybys - definition please

Hi Diane,

I found it in several papers on interplanetary flight like like this one,

The rst yby at Venus on 26 April 1998 gave Cassini an extra 7 km/s or so, the third at Earth on 17 August 1999 added 5.5 km/s. The fourth and last yby, at Jupiter on 30 December 2000, added 2 km/s
and set Cassini on course to arrive at Saturn on 1 July 2004.


If this is the context you saw it in then I assume that it should read "flyby". You will also notice that whatever program converted these texts also dropped the "fi" from first (the second word). When I do a search of one of these documents there is no occurrence of "fl" anywhere in the documents, which seems odd. Strange :?:
16 years 4 days ago #40182

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Replied by michaeloconnell on topic Re: Ybys - definition please

To me, it should be "flyby".
Can't see what else it would be.

I wonder would it be some issue of character recognition scanning in documents perhaps???
16 years 4 days ago #40188

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Replied by pmgisme on topic Re: Ybys - definition please

Yup.Its plural.It's short for "Fly-bys".
16 years 4 days ago #40190

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Replied by Diane ODonovan on topic Re Ybybs

First, please ignore accidentally duplicated message about this 'ybys' thing.

Secondly - very disappointing.... the same word (and this time really a word) is found in an old document. No-one knows what it meant and I thought I was onto something astronomical.... :oops:

Thanks all.
D.
".. the Carthaginian captain Hamilar saw in Birttany about 600bc .. skin boats which were making (so he reported) the three hundred mile crossing to the holy island of Ierne (Eire)"
16 years 3 days ago #40215

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Replied by dave_lillis on topic Re: Re Ybybs

First, please ignore accidentally duplicated message about this 'ybys' thing.
Thanks all.
D.

no problem, I've deleted that for you.
Dave L. on facebook , See my images in flickr
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16 years 3 days ago #40218

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Replied by pmgisme on topic Re: Ybys - definition please

I'd say some pedant decided that "Fly-by" is inappropriate because a spacecraft is not technically"flying".

This sort of "pc" thinking is common in America.

Recently they redefined "hunger" as "food insecurity".
(See: www7.nationalacademies.org/cnstat/Concep..._of_Hunger_Paper.pdf)

And,as we all know, they redefined "planet" because two committes argued about whose baliwick newly discovered bodies came under.

Peter.
16 years 3 days ago #40228

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