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I take issue with "As it turns out, it is very easy to transit from a path leading to the point to one leading back out. This makes sense, since the orbit is unstable, which implies one will eventually end up on one of the outbound paths after spending no energy at all. However, with careful calculation, one can pick which outbound path one wants. This turned out to be useful, as many of these paths lead to some interesting points in space, such as the Earth's Moon or the Galilean moons of Jupiter." The Ross Koon Lo Marsden paper cited talks about movement between Jovian moons after a probe has already been inserted into Jupiter's system. Jupiter - Galilean moons have a large mass parameter so travel between moons along WSBs is possible. But the Sun - Earth mass parameter is tiny. There are no WSBs extend from Sun Earth Lagrange 2 to Jupiter or even Mars. At this point the assertion is merely vague. But a later portion makes it clear the writer believes the WSBs will arry us anywhere from SEL2: "As a result, for the cost of reaching the Earth–Sun L2 point, which is rather low energy value, one can travel to a huge number of very interesting points for a little or no additional fuel cost. The transfers are so low-energy that they make travel to almost any point in the Solar System possible." Writing about travel between earth and Mars, Belbruno's colleague Toppotu notes " Unfortunately, the R3BPs involved in this study, due to their small mass parameters, do not allow the manifolds to develop far enough to approach each other; hence in this case the manifolds do not intersect even in the configuration space." WSBs won't take us from earth to Mars, much less from earth to Jupiter. - HopDavid 6 January 2016
The mention of the Belbruno paper mentioning the four-body problem from invariant manifolds is a broken reference and a broken link as well. Does anyone have a copy of this hiding somewhere that they can either reference or upload so they can reference it? Thanks and regards. -- User:Digemedi 19:19, 31.30.2009 —Preceding undated comment added 02:20, 1 April 2009 (UTC).
Is this the correct spelling? Is it really "superhiway" instead of "superhighway"? I find no Google hits with this spelling. -- Zoe
How exactly does chaos theory predict these orbit transfers? That line assuming it is not total nonsense shoudl be explained and cited. Dalf | Talk 06:20, 4 August 2006 (UTC)
Please excuse my spelling for my following comment... I don't entirely disagree with the previous comment, however, a three body system is in most cases chaotic. Our own solar system, not to mention other planetary systems, etc., is more than a three body system. —Preceding unsigned comment added by 69.228.207.81 ( talk) 08:37, 11 June 2008 (UTC)
The chaos theory here is handwaving. Toppotu was Belbruno's co-author for a recent ballistic Mars capture paper. From a paper by Toppotu and friends: " Unfortunately, the R3BPs involved in this study, due to their small mass parameters, do not allow the manifolds to develop far enough to approach each other; hence in this case the manifolds do not intersect even in the configuration space." The rocky planets with their tiny mass parameters do not have tubes connecting their Lagrange points. This Interplanetary Transport Network is of little use in the inner solar system. This entire article is exaggerating the benefits. HopDavid ( talk) 02:06, 7 November 2015 See http://www.researchgate.net/profile/M_Vasile/publication/40705665_Low_Energy_Interplanetary_Transfers_Exploiting_Invariant_Manifolds_of_the_Restricted_Three-Body_Problem/links/0c960527a98426f09e000000.pdf (UTC)HopDavid
I removed an entire section of text here [1] - it mentions things like atomic theory and dynamical systems. I don't think the connection is apparent. Thoughts? -- HappyCamper 01:07, 25 August 2006 (UTC)
I've rewritten the section in question. Amcfreely 21:53, 5 January 2007 (UTC)
There are a great number of external links that seem to not be particularly centered on the topic at hand, in particular links to all of the talks by Shane Ross at Caltech. I do not know this topic well, but as a naive reader, it seems that perhaps one or two articles from a given author would be appropriate, but that author's entire on-line publishing and speaking history would be better placed in an article about the person. That said, I've pared down the external links section greatly, but would appreciate discussion here if anyone feels that this is in error. -- Zippy 23:15, 8 January 2007 (UTC)
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It would be useful to show a scientific diagram of how this works, perhaps with a specific example trajectory. -- Beland ( talk) 05:24, 21 January 2008 (UTC)
The current image ( http://upload.wikimedia.org/wikipedia/en/thumb/3/33/Interplanetary_Superhighway.jpg/350px-Interplanetary_Superhighway.jpg) looks pretty cool, and is possibly the best attempt at a static representation. To show a realistic sample trajectory would require perhaps an animated gif as the highways are dynamic due to constant orbits of the planets. A 2D figure would be sufficient. Might be something that a little PHP GD programming could do but I'm not sure how to integrate it into Wikipedia. 203.129.23.146 ( talk) 07:58, 1 May 2011 (UTC)
I am proposing merging Low energy transfers into Interplanetary Transport Network. They have mostly duplicate content. Low energy transfers might fit better as a section inside Interplanetary Transport Network. If anything, Interplanetary Transport Network covers more on the topic of Low Energy Transfers than Low energy transfers does. Allanlw 04:48, 31 December 2008 (UTC)
What's the procedure for moving this proposal on? Seems like the right idea, so... Beeflin ( talk) 10:09, 6 October 2010 (UTC)
"The key to the Interplanetary Transport Network was investigating the exact nature of these winding paths near the rectal points. They were first investigated by Jimmy Hendrix in the 1890s." Obviously the reference to Jimmy Hendrix is vandalism, so I have removed it, but I have no idea whose name should actually be there. 24.171.21.228 ( talk) 16:13, 21 June 2010 (UTC)
Would this work for other planetary systems, or is it unique to Earth? This may sound silly, but I would like to know whether this is just because of the arrangement of our system. 81.107.32.163 ( talk) 15:12, 12 July 2011 (UTC)
Should the title be capitalised? I suspect not, per MOS:CAPS, because it is not a capital noun. Mitch Ames ( talk) 11:59, 3 August 2011 (UTC)
I see that you moved Interplanetary Transport Network to Interplanetary transport network last September, citing MOS:CAPS and WP:TITLEFORMAT. I believe that this was wrong: Interplanetary Transport Network is indeed a proper noun: "in its primary application refers to a unique entity, such as London, Jupiter, Sarah, or Microsoft"; it is not "a common noun, which usually refers to a class of entities (cities, planets, persons, corporations), or non-unique instances of a certain class (a city, another planet, these persons, our corporation)". There is only one Interplanetary Transport Network (the Solar System's); its name is not a precise description, but rather an interesting phrase someone came up with to describe the phenomena (see the Big Bang). In addition, the capitalized version is by far the commoner usage: if you look at the WP articles that link to the two capitalizations (ignoring article lists, user pages, talk pages and redirects) there are a total of five links to Interplanetary transport network, but 110 links to Interplanetary Transport Network. Googling turns up similar ratios.
Why is a search for the article title "InterPlanetary Network" redirected here, when there is a distinct article with that title? Michael9422 ( talk) 19:45, 20 April 2013 (UTC)
I accept, but would not know for sure, that the lede as it stands is a correct and succint summary of the topic. Nevertheless, it does at first glance read like a description of some kind of actual transport system; ie, that it is man-made and indeed possibly in use. And the diagram reinforces the concept. — Preceding unsigned comment added by 58.166.118.138 ( talk) 09:55, 19 July 2014 (UTC)
The stylised depiction shows ITN extending from Venus, Earth, Mars, to Jupiter, Saturn, Uranus etc. Ross-2006 says the tubes from the various L1 and L2 points around different bodies only intersect occasionally. Is this network actually a network of gentle gravitational assists ? If not, where does the energy and momentum come from to get from orbiting earth to orbiting say Jupiter ? Rod57 ( talk) 11:03, 26 July 2020 (UTC)
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I take issue with "As it turns out, it is very easy to transit from a path leading to the point to one leading back out. This makes sense, since the orbit is unstable, which implies one will eventually end up on one of the outbound paths after spending no energy at all. However, with careful calculation, one can pick which outbound path one wants. This turned out to be useful, as many of these paths lead to some interesting points in space, such as the Earth's Moon or the Galilean moons of Jupiter." The Ross Koon Lo Marsden paper cited talks about movement between Jovian moons after a probe has already been inserted into Jupiter's system. Jupiter - Galilean moons have a large mass parameter so travel between moons along WSBs is possible. But the Sun - Earth mass parameter is tiny. There are no WSBs extend from Sun Earth Lagrange 2 to Jupiter or even Mars. At this point the assertion is merely vague. But a later portion makes it clear the writer believes the WSBs will arry us anywhere from SEL2: "As a result, for the cost of reaching the Earth–Sun L2 point, which is rather low energy value, one can travel to a huge number of very interesting points for a little or no additional fuel cost. The transfers are so low-energy that they make travel to almost any point in the Solar System possible." Writing about travel between earth and Mars, Belbruno's colleague Toppotu notes " Unfortunately, the R3BPs involved in this study, due to their small mass parameters, do not allow the manifolds to develop far enough to approach each other; hence in this case the manifolds do not intersect even in the configuration space." WSBs won't take us from earth to Mars, much less from earth to Jupiter. - HopDavid 6 January 2016
The mention of the Belbruno paper mentioning the four-body problem from invariant manifolds is a broken reference and a broken link as well. Does anyone have a copy of this hiding somewhere that they can either reference or upload so they can reference it? Thanks and regards. -- User:Digemedi 19:19, 31.30.2009 —Preceding undated comment added 02:20, 1 April 2009 (UTC).
Is this the correct spelling? Is it really "superhiway" instead of "superhighway"? I find no Google hits with this spelling. -- Zoe
How exactly does chaos theory predict these orbit transfers? That line assuming it is not total nonsense shoudl be explained and cited. Dalf | Talk 06:20, 4 August 2006 (UTC)
Please excuse my spelling for my following comment... I don't entirely disagree with the previous comment, however, a three body system is in most cases chaotic. Our own solar system, not to mention other planetary systems, etc., is more than a three body system. —Preceding unsigned comment added by 69.228.207.81 ( talk) 08:37, 11 June 2008 (UTC)
The chaos theory here is handwaving. Toppotu was Belbruno's co-author for a recent ballistic Mars capture paper. From a paper by Toppotu and friends: " Unfortunately, the R3BPs involved in this study, due to their small mass parameters, do not allow the manifolds to develop far enough to approach each other; hence in this case the manifolds do not intersect even in the configuration space." The rocky planets with their tiny mass parameters do not have tubes connecting their Lagrange points. This Interplanetary Transport Network is of little use in the inner solar system. This entire article is exaggerating the benefits. HopDavid ( talk) 02:06, 7 November 2015 See http://www.researchgate.net/profile/M_Vasile/publication/40705665_Low_Energy_Interplanetary_Transfers_Exploiting_Invariant_Manifolds_of_the_Restricted_Three-Body_Problem/links/0c960527a98426f09e000000.pdf (UTC)HopDavid
I removed an entire section of text here [1] - it mentions things like atomic theory and dynamical systems. I don't think the connection is apparent. Thoughts? -- HappyCamper 01:07, 25 August 2006 (UTC)
I've rewritten the section in question. Amcfreely 21:53, 5 January 2007 (UTC)
There are a great number of external links that seem to not be particularly centered on the topic at hand, in particular links to all of the talks by Shane Ross at Caltech. I do not know this topic well, but as a naive reader, it seems that perhaps one or two articles from a given author would be appropriate, but that author's entire on-line publishing and speaking history would be better placed in an article about the person. That said, I've pared down the external links section greatly, but would appreciate discussion here if anyone feels that this is in error. -- Zippy 23:15, 8 January 2007 (UTC)
![]() | It is requested that an orbital mechanics diagram or diagrams be
included in this article to
improve its quality. Specific illustrations, plots or diagrams can be requested at the
Graphic Lab. For more information, refer to discussion on this page and/or the listing at Wikipedia:Requested images. |
It would be useful to show a scientific diagram of how this works, perhaps with a specific example trajectory. -- Beland ( talk) 05:24, 21 January 2008 (UTC)
The current image ( http://upload.wikimedia.org/wikipedia/en/thumb/3/33/Interplanetary_Superhighway.jpg/350px-Interplanetary_Superhighway.jpg) looks pretty cool, and is possibly the best attempt at a static representation. To show a realistic sample trajectory would require perhaps an animated gif as the highways are dynamic due to constant orbits of the planets. A 2D figure would be sufficient. Might be something that a little PHP GD programming could do but I'm not sure how to integrate it into Wikipedia. 203.129.23.146 ( talk) 07:58, 1 May 2011 (UTC)
I am proposing merging Low energy transfers into Interplanetary Transport Network. They have mostly duplicate content. Low energy transfers might fit better as a section inside Interplanetary Transport Network. If anything, Interplanetary Transport Network covers more on the topic of Low Energy Transfers than Low energy transfers does. Allanlw 04:48, 31 December 2008 (UTC)
What's the procedure for moving this proposal on? Seems like the right idea, so... Beeflin ( talk) 10:09, 6 October 2010 (UTC)
"The key to the Interplanetary Transport Network was investigating the exact nature of these winding paths near the rectal points. They were first investigated by Jimmy Hendrix in the 1890s." Obviously the reference to Jimmy Hendrix is vandalism, so I have removed it, but I have no idea whose name should actually be there. 24.171.21.228 ( talk) 16:13, 21 June 2010 (UTC)
Would this work for other planetary systems, or is it unique to Earth? This may sound silly, but I would like to know whether this is just because of the arrangement of our system. 81.107.32.163 ( talk) 15:12, 12 July 2011 (UTC)
Should the title be capitalised? I suspect not, per MOS:CAPS, because it is not a capital noun. Mitch Ames ( talk) 11:59, 3 August 2011 (UTC)
I see that you moved Interplanetary Transport Network to Interplanetary transport network last September, citing MOS:CAPS and WP:TITLEFORMAT. I believe that this was wrong: Interplanetary Transport Network is indeed a proper noun: "in its primary application refers to a unique entity, such as London, Jupiter, Sarah, or Microsoft"; it is not "a common noun, which usually refers to a class of entities (cities, planets, persons, corporations), or non-unique instances of a certain class (a city, another planet, these persons, our corporation)". There is only one Interplanetary Transport Network (the Solar System's); its name is not a precise description, but rather an interesting phrase someone came up with to describe the phenomena (see the Big Bang). In addition, the capitalized version is by far the commoner usage: if you look at the WP articles that link to the two capitalizations (ignoring article lists, user pages, talk pages and redirects) there are a total of five links to Interplanetary transport network, but 110 links to Interplanetary Transport Network. Googling turns up similar ratios.
Why is a search for the article title "InterPlanetary Network" redirected here, when there is a distinct article with that title? Michael9422 ( talk) 19:45, 20 April 2013 (UTC)
I accept, but would not know for sure, that the lede as it stands is a correct and succint summary of the topic. Nevertheless, it does at first glance read like a description of some kind of actual transport system; ie, that it is man-made and indeed possibly in use. And the diagram reinforces the concept. — Preceding unsigned comment added by 58.166.118.138 ( talk) 09:55, 19 July 2014 (UTC)
The stylised depiction shows ITN extending from Venus, Earth, Mars, to Jupiter, Saturn, Uranus etc. Ross-2006 says the tubes from the various L1 and L2 points around different bodies only intersect occasionally. Is this network actually a network of gentle gravitational assists ? If not, where does the energy and momentum come from to get from orbiting earth to orbiting say Jupiter ? Rod57 ( talk) 11:03, 26 July 2020 (UTC)