IKAROS JAXA Solar Sail mission |
IKAROS JAXA Solar Sail mission |
Mar 29 2010, 06:09 AM
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#101
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Member Group: Members Posts: 202 Joined: 9-September 08 Member No.: 4334 |
IKAROS sounds really cool, is there any website to find more info on it?
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Mar 29 2010, 07:19 PM
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#102
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Member Group: Members Posts: 540 Joined: 25-October 05 From: California Member No.: 535 |
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 -------------------- 2011 JPL Tweetup photos: http://www.rich-parno.com/aa_jpltweetup.html
http://human-spaceflight.blogspot.com |
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Feb 14 2011, 06:02 PM
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#103
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Senior Member Group: Members Posts: 1729 Joined: 3-August 06 From: 43° 35' 53" N 1° 26' 35" E Member No.: 1004 |
just one question: what are they talking about when speaking of "1970", "1990" etc in page 30?
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Feb 16 2011, 09:26 AM
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#104
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Member Group: Members Posts: 817 Joined: 17-April 10 From: Kamakura, Japan Member No.: 5323 |
just one question: what are they talking about when speaking of "1970", "1990" etc in page 30? Thanks and apologies for not translating fully. You can actually ask for further translations any time you wish. The top graph is cosmic dusts distribution in space nearer to the Sun than the Earth. Vertical axis is the flux and the horizontal is heliocentric distance in AU. Character string at the top left of this graph is IKAROS (2010), down below it in red is Helios 1 (1970's) and just to the right of it is the counting by Galileo (1990's). Two characters at the bottom left is : Venus orbit, right : Earth orbit There are two small graphs at the bottom and one on left is IKAROS orbit, and the one on the right is IKAROS orbit with respect to the Sun-Earth fixed frame of reference. Here below, I will paste the main text and hope it will succeed. Page 30: Supplementary information on ALDN Operational results: (1) Large area dust counter started operation on 21 June 2010. Dusts larger than a few micron size were recorded on all of the 8 channells. A little more than 100 dusts were counted during 25 days starting on 30 June and this number is larger than the count recorded by a German counter (MDC) on board NOZOMI during 45 months from August 1998. (2) Study of dusts distribution dependence on heliocentric distance Earlier countings during 1970's and 1990's were somewhat uncertain in accuracy in time resolution. IKAROS data seems to show a continuous rise in the flux as we approach Venus. We may get more information as we continute to operate IKAROS. P |
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