Akatsuki Venus Climate Orbiter |
Akatsuki Venus Climate Orbiter |
Mar 13 2010, 11:29 AM
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#101
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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 |
I thought it was time to start a separate thread on this mission, launching soon
some good medium-resolution images of the spacecraft are available on JAXA digital archives http://jda.jaxa.jp/jda/p3_e.php?time=N&...mp;mission=4066 |
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Dec 8 2010, 03:11 PM
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#102
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Member Group: Members Posts: 126 Joined: 20-April 05 Member No.: 291 |
Out of genuine curiosity - is there some major difference in the mission management of NASA & ESA, versus the Japanese agency?
Perhaps it is the small sample size, but it seems they haven't been able to a launch any missions the past decade that don't have some serious problem. Do they lack the budget to simulate as many scenarios as NASA/ESA? Don't have as vigorous testing of components? Just plain lack of experience? At this point, with this history of failures, I have to think that these aren't isolated incidences and they are missing some critical ingredient that NASA & ESA just get right - but I don't have any idea what it could be... |
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Dec 9 2010, 03:17 AM
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#103
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Junior Member Group: Members Posts: 58 Joined: 17-September 06 Member No.: 1150 |
... At this point, with this history of failures, I have to think that these aren't isolated incidences and they are missing some critical ingredient that NASA & ESA just get right - but I don't have any idea what it could be... Their failure rate is quite low. Their last failure in the science programm was in 2000 when the Astro-E astronomy mission got lost during launch. The only failure in the 1990s was Nozomi. Except for these two all the missions were successful to very successful. Some things got lost in translation between English and Japanese, if I remember it correct this was the reason why Astro-EII lost one of its instruments. But still the mission is producing results. Solar-B lost its x-band downlink, so they had to include more ground stations. Reimei, Akari, SELENE, IKAROS, Hayabusa ... did (or are still doing) a great job. |
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Dec 9 2010, 04:26 AM
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#104
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Senior Member Group: Admin Posts: 4763 Joined: 15-March 05 From: Glendale, AZ Member No.: 197 |
Reimei, Akari, SELENE, IKAROS, Hayabusa ... did (or are still doing) a great job. Hayabusa eventually achieved it's goal, and we all admire the skill of the JAXA engineers for bringing the crippled craft home, but let's be realistic. It WAS a crippled craft and the mission was plagued with one crisis after another. The brilliant solutions for adapting and working around these failures brought Hayabusa back from near death more than a few times. That said, I don't think there is a pattern in any of this and as far as I'm concerned the Japanese Space program is to be applauded. -------------------- If Occam had heard my theory, things would be very different now.
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