Akatsuki Venus Climate Orbiter |
Akatsuki Venus Climate Orbiter |
Mar 13 2010, 11:29 AM
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#1
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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 16 2010, 07:16 PM
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#2
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Senior Member Group: Members Posts: 1443 Joined: 26-July 08 Member No.: 4270 |
It is much appreciated Thank-you.
-------------------- -- Hungry4info (Sirius_Alpha)
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Dec 17 2010, 09:30 AM
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#3
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Member Group: Members Posts: 817 Joined: 17-April 10 From: Kamakura, Japan Member No.: 5323 |
It is much appreciated Thank-you. This news just in from the Yomiuri newspaper. Apparently, most of the engine nozzle was broken apart and dislodged from the craft. That appears to be the strong possibility, the ceramic nozzle, that is. Fuel was not properly supplied and abnomal burning took place and resulting over-heating led to the brekage, that is what JAXA believe now. However, if most of the nozzle has been dislodged that means less propulsion but straight line motion and that means there may be a possibility of orbital re-insertion after 6 years. According to JAXA, attitude was lost after 2 minutes and 32 seconds, but regained its power right afteer that. JAXA engineers now believe that abnormally high temp burning caused gaps in the ceramic nozzle and gas poured out through them and eventually the nozzle itself broke into pieces. Pandaneko JAXA said about 10 days ago that their future space probes will be made larger. Why did they not use standard alloy nozzle... OK, small probe, weight saving by ceramic nozzle to be launched by a solid fuel rocket, originally... It went up on LH/LO rocket in the end. It is sad. |
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