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#11
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Large Radio Telescope Orbiting Moon.
On May 15, 9:14*am, Brad Guth wrote:
On May 13, 3:41*pm, "Ken S. Tucker" wrote: Some have made the valid suggestion of placing a radio telescope on the 'far side' of the moon, to sheild Earths RF, but that is quite an expensive challenge for anything large, it means soft landing the RT (Radio Telescope) and then subjecting the structure to 1/6 g-force. However if we were to Orbit the RT around the Moon, it's structure would be in nil g (weightless), and would have 'periodic' sheilding at which time it would be shielded from Earth's RF. The unit would be solar powered, subtle orientation by gyros. Highly advanced Unified Field Theory predict that so-called g-waves will actually be detected as ElectroMagnetic Radiation, at the same frequency and energy as conventional GR math predicts for orbital decays, thus requiring a very sensitive EMR detector. An example of an applied UFT based on GR can be found here,http://physics.trak4.com/GR_Charge_Couple.pdf that enables the prediction of the orbital decay appearing as EMR. Apart from that application astronomers will have great benefit from doing Radio Astronomy during those ultra quiet periods. Regards Ken S. Tucker The moon L2 shouldn't be all that insurmountable. According to our NASA/Apollo wizards, the surface of our physically dark moon is relatively passive and/or monochrome inert, and otherwise technically easy enough to cope with (hot or cold). *There's also our 100% reliable Saturn V(5) for accomplishing those 50+ tonne missions, that's fully R&D plus having everything as off-world proof-tested, as well as 1000% bought and paid for. So why haven't we established our platforms of science instruments within the zero delta-V of our Earth-moon L1 (Selene L1), or that of the zero delta-V of Selene L2? What the hell are we waiting for? ~ BG |
#12
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Large Radio Telescope Orbiting Moon.
On May 15, 3:12*pm, Pat Flannery wrote:
On 5/14/2010 5:54 PM, tom Donnley wrote: As a thought maybe place it at the Sun/Earth L3 point. It's hidden from Earth, And that's the problem; without a relay satellite at either the Sun/Earth L4 or L5 point, you won't be able to get commands to it or data back from it. Pat Sure you need some sort of relay (doesnt necessarily have to be a L- point). But by definition you need a relay any place where you are shielded from Earth Radio interference. |
#13
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Large Radio Telescope Orbiting Moon.
On May 14, 8:21*am, "Ken S. Tucker" wrote:
On May 14, 3:57 am, Pat Flannery wrote: On 5/13/2010 7:17 PM, Greg D. Moore (Strider) wrote: I think you're trading one set of complications for another. Orbiting the moon you now have to deal with mascons. And now you need a structure stiff enough to handle any potential gravity gradients and changes in attitude due to your gyros. Not saying it's a bad tradeoff, but I'm not convinced. If you stick it at the L-2 point, that would allow you to still use the Moon as a RF shield without worrying about the mascons. The L-2 point is unstable, but you could use ion thrusters to keep it in place. Since it will look like a giant dish antenna anyway, there will be plenty of area to mount the solar cells on it. In fact, you could build something like this fairly easily using existing technology, as the NSA already uses very large diameter deployable dish satellites to monitor Earth communication transmissions:http://www.globalsecurity.org/space/systems/magnum.htm Pat Thank you very much for the ref Pat and also the L-2 thought. And thanks to all for your comments. The exact nature of the actual Radio Telescope depends on many factors, such as a 'phase arrayed' , dish, assembly, etc. Regards Ken In other words, you really weren't serious. ~ BG |
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Large Radio Telescope Orbiting Moon.
On May 18, 11:21 am, Brad Guth wrote:
On May 14, 8:21 am, "Ken S. Tucker" wrote: On May 14, 3:57 am, Pat Flannery wrote: On 5/13/2010 7:17 PM, Greg D. Moore (Strider) wrote: I think you're trading one set of complications for another. Orbiting the moon you now have to deal with mascons. And now you need a structure stiff enough to handle any potential gravity gradients and changes in attitude due to your gyros. Not saying it's a bad tradeoff, but I'm not convinced. If you stick it at the L-2 point, that would allow you to still use the Moon as a RF shield without worrying about the mascons. The L-2 point is unstable, but you could use ion thrusters to keep it in place. Since it will look like a giant dish antenna anyway, there will be plenty of area to mount the solar cells on it. In fact, you could build something like this fairly easily using existing technology, as the NSA already uses very large diameter deployable dish satellites to monitor Earth communication transmissions:http://www.globalsecurity.org/space/systems/magnum.htm Pat Thank you very much for the ref Pat and also the L-2 thought. And thanks to all for your comments. The exact nature of the actual Radio Telescope depends on many factors, such as a 'phase arrayed' , dish, assembly, etc. Regards Ken In other words, you really weren't serious. ~ BG Not sure, doubt we'll use a Saturn V, possibly a constellation (4-6) revolving around the moon, downloading to Earth data acquired in a quiet period. Need to pull firm specs together in a consensus by pros, what's the LNA, structure etc. Ken |
#15
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Large Radio Telescope Orbiting Moon.
On 5/18/2010 6:41 AM, tom Donnley wrote:
Pat Sure you need some sort of relay (doesnt necessarily have to be a L- point). But by definition you need a relay any place where you are shielded from Earth Radio interference. A L-point would be best though as the L-4 and L-5 points are stable and would allow the telescope to keep its antenna fixed on the the same point in the sky for the one in solar orbit behind the Sun at the Earth/Sun L-3 point (assuming the gravity of Venus doesn't screw things up too much). Pat |
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