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IKAROS JAXA Solar Sail mission
Vultur
post Mar 29 2010, 06:09 AM
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IKAROS sounds really cool, is there any website to find more info on it?
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punkboi
post Mar 29 2010, 07:19 PM
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QUOTE (Vultur @ Mar 28 2010, 10:09 PM) *
IKAROS sounds really cool, is there any website to find more info on it?


Project Page: http://www.jaxa.jp/projects/sat/ikaros/index_e.html

Photos: http://jda.jaxa.jp/jda/p3_e.php?mode=level...mp;mission=9095

Description Page: http://www.jspec.jaxa.jp/e/activity/ikaros.html


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Norm Hartnett
post Jun 16 2010, 03:48 PM
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Hopefully some kind person here will be willing and able to explain how IKAROS is going to be able to maneuver using its LCD panels. I understand that by darkening and lightening the panels IKAROS can increase or decrease the light pressure (terminology?) thus increasing or decreasing its ‘thrust’ in relation to the sun. I also understand that, depending on its angle in relation to the sun, it can either slow or accelerate in relation to its orbit. What I have a great deal of difficulty envisioning is how it can change its attitude, pitch and yaw if you will. Given that the satellite has to rotate to maintain rigidity how can the LCDs modify its angle to the sun? Can they modify its rotation rate?


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punkboi
post Jun 16 2010, 06:52 PM
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QUOTE (Norm Hartnett @ Jun 16 2010, 08:48 AM) *
What I have a great deal of difficulty envisioning is how it can change its attitude, pitch and yaw if you will. Given that the satellite has to rotate to maintain rigidity how can the LCDs modify its angle to the sun? Can they modify its rotation rate?


IKAROS uses its thrusters to position the main spacecraft bus in a certain attitude...which in turn tugs on the tethers attached to the sail membrane and causes the membrane to be pulled and positioned into different angles. There's a computer animation of this towards the latter part of the video below

http://www.youtube.com/watch?v=7_6HOqBkP2o...player_embedded



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