Nozomi in perspective, Revisiting the causes of failure Options

[pandaneko]

http://www.mext.go.jp/b_menu/shingi/uchuu/...ts/04061101.pdf

Above pdf file will be translated for aspiring students in aeronautics, control engineering etc. so that in future lay people like me will be able to enjoy planetary scenes and events without worrying about failures.

The overall title is "Looking into the causes of failure and trying to find the right measures to take for the future with respect to the 18th scientific satellite (PLANET-B ) not inserted into Mars orbit as planned" and it is dated 21 May 2004.

This file is very much detailed at 1.1 megabytes and the number of pages is about 40, I think. In addition, I will be translating 3 more files after this particular file. They will be;

1. ISAS file with views and comments on the failure
2. Another ISAS file, a newsletter written out in a series of 4 individual letters.
3. JAXA file, which is a press release and it is a very concise document with just sufficient details.

Re concise link making I tried a few times, but I simply failed and all the links will be fully pasted out as required.

Pandaneko

[pandaneko]

http://www.mext.go.jp/b_menu/shingi/uchuu/...ts/04061101.pdf

above for ease of reference

Page 1: preliminary (omitted)

Page 2:

１．Outline of the satellite

(1) Objectives set for Nozomi

Nozomi was conceived with its main objectives of looking into the direct interaction between the solar wind and Maritian atmosphere/ionosphere. In addition, Nozomi was conceived as the first planetary probe of this country trying to look into solid planets and serving as an engineering test satellite for future deep space missions.

(2) Outline of the satellite

Nozomi is a spin stabilised satellite with a high gain antenna fixed atop a pentagon shaped pillar boby. It is a small satellite, with its inertial mass of 540kg (of which 280kg is fuel) and the total height of 2.4m (from nozzle tip to end antenna) and diameter of 1.6m. It carried 15 different instruments (35kg inluding an extensible structure). Nozomi's ultimate shape (imagined) in its Mars circulating orbit is shown in the graph I-1-1.

(3) Outline of the knowledge obtained before insertion abandonment and its instruments「

Nozomi carried 15 different instruments such as an extreme ultraviolet imager, ultraviolet imager, ion energy spectrograph etc. Main findings using some of these include the world first image of Earth's plasma sphere and interstellar materials measurements. Altogether, 10 out of 15 instruments were actually operated.

In addition, Nozomi had 8 engineering objectives required for future deep space missions such as ultra high precision in orbit determination and autonomous control of the probe. These naturally form an important basis for our future deep space missions.

For your information, the outline of observational results, list of instruments, achieved engineering objectives, and the positions of each instrument on board are shwon in tables I-1-1, I-1-2, and schematics I-1 and I-2.



２．Background and history of its development (what a strange place for this to be!, P)

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