J-GLOBAL ID:200904050188179459  Research Project code:0250002223 Update date:Feb. 12, 2003

Deverlopment of science instruments for use in "INDEX"

Study period:2000 - 2000
Organization (1):
Investigating Researcher (5):
Research overview:
With regard to the small satellite "INDEX" to be launched in 2003 as a piggyback satellite of H-IIA rocket of National Space Agency of Japan, a scientific observation plan has been proposed and approved that utilizes its orbit and attitude control system, in addition to an engineering test plan for the future technology development of small satellites. The purpose of this scientific observation is the elucidation of "Aurora fine structure". Using "INDEX" with three axial attitude control function positioned on a solar-synchronized orbit at about 700 km altitude, we intend to conduct an epoch-making observation never found before in the polar zones of Earth, and to obtain new knowledge on the mechanism of generating Aurora and its dynamics that have not been elucidated yet. Its characteristic observers include "multi-wavelength, monochromatic Aurora camera" and "electron and ion energy analyzer". The Aurora camera having high space resolving power will observe fine Aurora structure and its movement at the level that no satelleite plan has ever achieved, and at the same time, it will always grasp magnetic lines in the planar field of vision of the particle size analyzer. This grasping makes it possible to remove limitation in angular distribution measurement present in the conventional spin-utilizing type instrument, and to observe energy-pitch angular distribution of Aurora particles almost instantaneously. Furthermore, the satellite incorporates an observer of Langmuir-probe system, for investigating plasma environment surrounding the satellite.
Research program: Ordinary Research
Ministry with control over the research :
Ministry of Education, Culture, Sports, Science and Technology

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