IKAROS JAXA Solar Sail mission |
IKAROS JAXA Solar Sail mission |
Mar 29 2010, 06:09 AM
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#31
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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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#32
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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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Jan 26 2011, 09:49 PM
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#33
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Administrator Group: Admin Posts: 5172 Joined: 4-August 05 From: Pasadena, CA, USA, Earth Member No.: 454 |
Mine was taken from the press kit too -- I think yours has more pixels but is just upsampled. Which is not to say that upsampling to make the image occupy more space on the screen doesn't help in interpreting the image; I just don't think it actually contains any more data.
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Feb 8 2011, 09:10 AM
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#34
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Member Group: Members Posts: 817 Joined: 17-April 10 From: Kamakura, Japan Member No.: 5323 |
Page 20:
4: Supplementary information Significance of solar power sailing: This is expected to lead to flexible operation of probes. It is also expected to provide enough electrical power in the vicinity of Jupitor and beyond. P |
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Feb 8 2011, 09:20 AM
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#35
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Member Group: Members Posts: 817 Joined: 17-April 10 From: Kamakura, Japan Member No.: 5323 |
Page 21:
There are graphs and other structures with this page, but they are self-explanetary. So, my translation is only about IKAROS specs, as follows. Main body size: 1.6 m in diam. and height 0.8 m Membrane size:s 20m by 20 m, and membrane thickess of 7.5μm Mass: 308kg, of this 16kg is the membrane mass Orbit: direct flight to Venus Orbit determination: range fidings and Doppler measurements Attitude control: by spin Propulsion: vapour and liquid equilibrium thruster and gas jet thrusters Mission duration: longer than 6 months Comms: 2 LGAs and 1 MGA P |
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Feb 9 2011, 09:03 AM
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#36
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Member Group: Members Posts: 817 Joined: 17-April 10 From: Kamakura, Japan Member No.: 5323 |
I will skip pages 22 and 23 as they are too obvious.
Page 24: Supplementary info on GAP 1. Small table header from left to right: GRB name, trigger time, distance, alpha, beta, angle of entering, simultaneous observation 2. With the 3 graphs here vertical axis is intensity, horizonrtal time in seconds Main text (jist of it) as follows: GAP is a ganma ray burst polariser detector. It also achives simultaneous Compton scattering counting. Power was switched one month after launch. Data is stored in memory and sent back to earth. No mulfunction to date. GAP detects polarisation of megnetic field. P |
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Feb 9 2011, 09:24 AM
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#37
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Member Group: Members Posts: 817 Joined: 17-April 10 From: Kamakura, Japan Member No.: 5323 |
Page 25:
4: Supplementary info on GAP (Here, I am only translating gists of what this page says, P) Primary objective of GAP is to measure polarisation of ganma ray bursts and try to understand the mechanism. However, it is only 4 months in operation and we have not yet meaure enough of these bursts. Following report (what follows?, P) is based on the collaborative work with all those GRB satellites around the world with a view to determining the directions of these bursts. Earlier page's list has data from Russian Konus satellie (K), US Fermi satellite (F), and US-Italy Swift satellite (S). For example, the burst, GRB 100826A (detected on 26 August 2010) was determined to be within the region surrounded by the blue frame with the graph here. Due to polarisation measurements IKAROS is providing additional accuracy. P |
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Feb 10 2011, 12:59 PM
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#38
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Member Group: Members Posts: 817 Joined: 17-April 10 From: Kamakura, Japan Member No.: 5323 |
Page 29:
4: Supplementary info on ALADDIN ALADDIN = Arrayed Large Area Dust Detectors in INterplanetary space Mission objectives: Cosmic dusts detector engineering tests, to be used for future Jupiter exploration and other outer planets, also to be used in near Earth orbits. Device composition and arrangement: 1. 0.3% of the sail membrane (0.54 square meters) 2. Piezo-electric thin film elements of 2 different thicknesses at 9/1000mm and 20/1000mm in 4 channel arrangement at the sensing part (ALDN-S at 40g) and detection part (ALDN-E at 210g) P |
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