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- Path: sparky!uunet!elroy.jpl.nasa.gov!kelvin.jpl.nasa.gov!baalke
- From: baalke@kelvin.jpl.nasa.gov (Ron Baalke)
- Newsgroups: sci.space
- Subject: Re: *** BUSSARD RAMSCOOP ***
- Date: 23 Jan 1993 06:51 UT
- Organization: Jet Propulsion Laboratory
- Lines: 37
- Distribution: world
- Message-ID: <23JAN199306513726@kelvin.jpl.nasa.gov>
- References: <C0937v.FvM@zoo.toronto.edu> <J85swB3w165w@tradent.wimsey.bc.ca> <C0CKyt.7o0@zoo.toronto.edu> <C1ABD8.Ms2@news.cso.uiuc.edu>
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- In article <C1ABD8.Ms2@news.cso.uiuc.edu>, jbh55289@uxa.cso.uiuc.edu (Josh Hopkins) writes...
- >lwahl@matt.ksu.ksu.edu (Lynne K Wahl) writes:
- >
- >>Hmmm... This sounds like an interstellar probe is needed to collect
- >>information before a *really* fast spacecraft is launched. How about
- >>a .01c speed probe with a small "sail" that would be primarily used to
- >>collect interstellar H (for testing) and with magnetic sensors to check
- >>on the magnetic medium as it goes. How far from the sun would this
- >>"Pathfinder" type of probe need to go before getting outside the sun's
- >>environment?
-
- We have four spaceraft (Pioner 10 & 11 and Voyager 1 & 2) that have already
- left the solar system and looking for the heliopause. I'd say one of them
- would reach the helipause within 10 years.
-
- >>As an exercise, how fast would, say a refueled shuttle ET, one SSME,
- >>and a 30 ton probe go if launched in a "generic" solar escape orbit?
- >
- >Really slowly.
- >
- >JPL proposed the TAU (Thousand AU) mission a number of years
- >ago. It would have used a nuclear reactor and an ion drive to boost out of
- >the solar system in about fifty years and check out interstellar space.
- >Unfortunately, since it required new power, engines and communications gear it
- >never got very far.
-
- The TAU mission would also use a light-wave communications system. It would
- study low energy cosmic rays, low frequency radio waves, interstellar gases,
- gravity waves and perform high precision astrometry. The spacecraft would
- also be targeted to flyby Pluto on its way out of the solar system.
- ___ _____ ___
- /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov
- | | | | __ \ /| | | | Jet Propulsion Lab |
- ___| | | | |__) |/ | | |__ M/S 525-3684 Telos | Every once in a while,
- /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | try pushing your luck.
- |_____|/ |_|/ |_____|/ |
-
-