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

There was a mistake on page 60. C3R1 should have been Ultra Stable Oscillater and with an abbreviation USO

page 61


Table III-1-1 CI-PSU and a list of devices connected to it

(this is a regular table with C3R12 structure. Top row from left to right is Abbreviation::Full Name::Function etc)


CI-PSU: Common Instrument Power Supply Unit: To supply power to the following 10 devices with secondary voltage of +29V, +12V, -12V, +5V

TCI:: Telemetry Command Interface :: To act as a telemetry command interface to a number of common devices

HCE:: Heater Control Electronics:: Heater ＯＮ／ＯＦＦ control and temp. measurement (Heater power is supplied directly from the bus voltage)

DR:: Data Recorder:: To keep data to be sent out to the telemetry system

SPM:: Solar Proton Monitor:: To measure solar protons (usually from 1MeV to a few tens of MeV)


IG-PS:: IGniter Power Supply:: Condensor bank type power supply to provide power to pyros

INS-SA:: INStrument-SAtellite:: Sensor only used at launch, turned OFF thereafter

EPT-SA:: Electrical Programmable Time-Satellite:: Timer circuit, only used at launch and turned OFF thereafter

P-Mon:: Pressure Monitor:: Pressure monitor for propulsive system (imported item)

LVDT:: Linear Variable Differential Transformer:: Latching valve monitor for the propulsive system (imported item)

USO:: Ultra Stable Oscillator:: For radio science measurement (imported item)

end of page 61

P