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Galactic Drifter SETI (update)

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gds

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Sep 5, 2006, 11:28:03 AM9/5/06
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Henry Spencer

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Sep 6, 2006, 2:57:36 PM9/6/06
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In article <1157470083.0...@i3g2000cwc.googlegroups.com>,
gds <galactic_d...@yahoo.co.uk> wrote:
>http://galacticdrifter.blogspot.com/
>(updated URL)

Hint: many people won't bother following such a link unless you say
something about what's there and why it might be worth our time to look.
--
spsystems.net is temporarily off the air; | Henry Spencer
mail to henry at zoo.utoronto.ca instead. | he...@spsystems.net

Chuck Stewart

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Sep 6, 2006, 6:19:09 PM9/6/06
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On Wed, 06 Sep 2006 18:57:36 +0000, Henry Spencer wrote:

> Hint: many people won't bother following such a link unless you say
> something about what's there and why it might be worth our time to look.

Hint from one who went:

... and not even then.

A one page site featuring one picture
that references an otherwise undiscussed
Seti project of galactic proportions.

His "drifters" are Seti probes placed
in galactic orbits... self-guiding...
self-repairing... don't think they have
a clue as to the tech involved... much
less the time scales...

Technology: at least 22-23 century using
present tech developement baselines and
assuming no singularity.

And not a very efficient search, anyways.

--
Chuck Stewart
"Anime-style catgirls: Threat? Menace? Or just studying algebra?"

gds

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Sep 6, 2006, 9:32:44 PM9/6/06
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The Earth-side of the contact attempt is at intervals of the
heliocentric Jupiter-Saturn closest approach (approx. 19.9 years) in
the direction of (0 deg., 90 deg.) galactic longitude. This constrains
the search in time and direction.

http://space.jpl.nasa.gov/cgi-bin/wspace?tbody=599&vbody=10&month=11&day=2&year=2020&hour=18&minute=00&fovmul=1&rfov=0.5&bfov=30&porbs=1&showsc=1

gds

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Sep 6, 2006, 9:34:28 PM9/6/06
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"...direction of (0 deg., 90 deg.) galactic longitude..."

should read "...direction of (0 deg., 90 deg.) galactic latitude and
longitude.."

Eric Chomko

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Sep 6, 2006, 10:13:38 PM9/6/06
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Chuck Stewart wrote:
> On Wed, 06 Sep 2006 18:57:36 +0000, Henry Spencer wrote:
>
> > Hint: many people won't bother following such a link unless you say
> > something about what's there and why it might be worth our time to look.
>
> Hint from one who went:
>
> ... and not even then.
>
> A one page site featuring one picture
> that references an otherwise undiscussed
> Seti project of galactic proportions.
>
> His "drifters" are Seti probes placed
> in galactic orbits... self-guiding...
> self-repairing... don't think they have
> a clue as to the tech involved... much
> less the time scales...
>
> Technology: at least 22-23 century using
> present tech developement baselines and
> assuming no singularity.

Sort of begs the question, when will be build a probe that will pass
the Voyager probes on their way to the stars? Surely V-1 and V-2 will
make it into interplanetary space and beyond; but won't we make a probe
or three that will pass them in this regard?

Eric

OM

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Sep 7, 2006, 7:11:10 AM9/7/06
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On Wed, 06 Sep 2006 22:19:09 GMT, Chuck Stewart
<zapk...@orcon.net.nz> wrote:

>A one page site featuring one picture
>that references an otherwise undiscussed
>Seti project of galactic proportions.

---------------------------------------------------------{

...Hey Chuckles, I've been meaning to ask you this for a while. I've
probably asked you this before, but I couldn't find it in my archives.

Q: Why the frack are your posts formatted so that your lines are no
more than say, 40-50 characters? Are you posting using a TRaSh-80 or a
C-64?

OM
--
]=====================================[
] OMBlog - http://www.io.com/~o_m/omworld [
] Let's face it: Sometimes you *need* [
] an obnoxious opinion in your day! [
]=====================================[

OM

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Sep 7, 2006, 7:18:41 AM9/7/06
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On Wed, 6 Sep 2006 18:57:36 GMT, he...@spsystems.net (Henry Spencer)
wrote:

>Hint: many people won't bother following such a link unless you say
>something about what's there and why it might be worth our time to look.

...Caveat: 9 times out of 10, when someone posts a link to some CT
nutter site, it's best to have at least two popup blockers running, as
well as at least three types of malware and antivirus running.

gds

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Sep 7, 2006, 4:04:53 PM9/7/06
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"...Though New Horizons will also reach 100 AU, it will never pass
Voyager 1, because Voyager was boosted by multiple gravity assists that
make its speed faster than New Horizons will travel. Voyager 1 is
escaping the solar system at 17 kilometers per second. When New
Horizons reaches that same distance 32 years from now, propelled by a
single planetary swingby, it will be moving about 13 kilometers per
second... "

http://www.plutotoday.com/news/viewpr.html?pid=20620

Jonathan Silverlight

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Sep 7, 2006, 5:28:48 PM9/7/06
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In message <1157595218.5...@m73g2000cwd.googlegroups.com>, Eric
Chomko <pne.c...@verizon.net> writes

>
>Chuck Stewart wrote:
>> On Wed, 06 Sep 2006 18:57:36 +0000, Henry Spencer wrote:
>>
>> > Hint: many people won't bother following such a link unless you say
>> > something about what's there and why it might be worth our time to look.
>>
>> Hint from one who went:
>>
>> ... and not even then.
>>
>> A one page site featuring one picture
>> that references an otherwise undiscussed
>> Seti project of galactic proportions.
>>
>> His "drifters" are Seti probes placed
>> in galactic orbits... self-guiding...
>> self-repairing... don't think they have
>> a clue as to the tech involved... much
>> less the time scales...
>>
>> Technology: at least 22-23 century using
>> present tech developement baselines and
>> assuming no singularity.
>
>Sort of begs the question, when will be build a probe that will pass
>the Voyager probes on their way to the stars? Surely V-1 and V-2 will
>make it into interplanetary space and beyond; but won't we make a probe
>or three that will pass them in this regard?
>

Well, the TAU (Thousand Astronomical Unit) mission is still firmly on
paper, so I doubt it will even be started in my lifetime
<http://www.daviddarling.info/encyclopedia/T/TAU.html>
More ambitious projects require things like antimatter and nuclear
fusion, which are barely on the horizon.
Planning missions that take several generations will be interesting.

gds

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Sep 7, 2006, 7:36:28 PM9/7/06
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Delta-V to a low-eccentricity counter-revolving galactic orbit is ~ 450
km/sec.

gds

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Sep 7, 2006, 7:53:02 PM9/7/06
to

gds wrote:
> Delta-V to a low-eccentricity counter-revolving galactic orbit is ~ 450
> km/sec.
>

For comparison, I estimate the TAU mission maximum velocity (1000 au in
50 years) to
be ~ 94 km/sec.

Chuck Stewart

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Sep 7, 2006, 8:49:32 PM9/7/06
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On Thu, 07 Sep 2006 06:11:10 -0500, OM wrote:

> ...Hey Chuckles, I've been meaning to ask you this for a while. I've
> probably asked you this before, but I couldn't find it in my archives.

Suffer.

> Q: Why the frack are your posts formatted so that your lines are no
> more than say, 40-50 characters?

It depends on if I'm using a 48 pt font
that day or a 64 pt font.

> Are you posting using a TRaSh-80 or a
> C-64?

Neither of which could match the
awesome elegance of a Kaypro 64
"suitcase" running CPM. :)

> OM

--
Chuck Stewart
"Anime-style catgirls: Threat? Menace? Or just being snarkily enigmatic?"

Chuck Stewart

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Sep 7, 2006, 8:57:04 PM9/7/06
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On Thu, 07 Sep 2006 16:53:02 -0700, gds wrote:

> gds wrote:

> For comparison, I estimate the TAU mission maximum velocity (1000 au in
> 50 years) to
> be ~ 94 km/sec.

Then cease playing games, if you can
even understand the concept that you
*are* playing games, and put forth a
precis of your concepts on your web
page... or here.

Otherwise, with what we *can* see
here, you are going to continue to go
nowhere... fast.

OM

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Sep 8, 2006, 8:24:11 AM9/8/06
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On Fri, 08 Sep 2006 00:49:32 GMT, Chuck Stewart
<zapk...@orcon.net.nz> wrote:

>Neither of which could match the
>awesome elegance of a Kaypro 64
>"suitcase" running CPM. :)

...The Osbourn was more fun, although the SX-64 looked better.

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