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Study on New Methods for Near Infrared High Precision- Astrometry

近红外高精度天体测量新方法研究

基本信息

批准号：
15340066
负责人：
GOUDA Naoteru
金额：
$ 10.37万
依托单位：
National Astronomical Observatory of Japan
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2003
资助国家：
日本
起止时间：
2003 至 2005
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-15340066/
关键词：
Space Astronomy High Precision-Astrometry Infrared Astronomy Object Oriented methodologies the Milky Way Galaxy Formation Nano-satellite 3枚鏡光学系

项目摘要

We are planning an infrared space astrometry mission which carries out high precision observations of positions and motions of stars. This mission is called JASMINE. The purpose of our research is to investigate some critical issues to be resolved, such as the observation strategy of JASMINE, and satellite specification, using a simulation system including the whole observation procedure. This simulator is called the JASMINE simulator and includes realistic models of the instruments and bus systems of JASMINE satellite.As concrete successful results, we have built an integrated simulation system in the JASMINE simulator, in which we used new software technologies, such as Object Oriented methodologies, Unified Modeling Language and so on. In the simulator, we classified the objects to be simulated into some components, such as "satellite bus system", "optics", "detector(on the focal plane), and "stars to be observed in the Galaxy". We have completed a framework in which we can easily m … More ake dependencies of an attribute of a component on other attributes of components though drawing a diagram.Furthermore we have developed each component and, using the simulator, we frequently investigated the observation strategy, and specifications of instruments taking into consideration of the satellite size, cost of the satellite and so on.Consequently, we could determine a basic specification and furthermore a detailed examination of the specification is progressing in cooperation with experts of the engineering, who concerns satellite systems.Furthermore, since the framework of a simulator has been completed, we have applied the simulator to development of an actual satellite whose launch is planned only in a few years. That is, we applied this simulator to development of our very small satellite mission(Nano-JASMINE project). The aim of Nano-JASMINE is to verify some technical feasibilities of JASMINE mission in the space and we hope the early realization of this project. As a result of application, the detailed investigations of satellite design has been progressed. Moreover, we have investigated performance of the Nano-JASMINE telescope, the attitude control of the satellite, thermal variations of both the telescope and the satellite, developing the instruments. It is now at the stage where further development is progressing, aiming at the early launch of the Nano-JASMINE satellite. Less

我们正在计划一项红外空间天体测量使命，对恒星的位置和运动进行高精度观测。这个使命叫做JASMINE。本研究的目的是利用一个包含整个观测过程的仿真系统来研究JASMINE的观测策略、卫星规格等关键问题。JASMINE仿真器是JASMINE卫星的仿真系统，它包括JASMINE卫星的仪器和总线系统的真实感模型。在JASMINE仿真器中，我们采用了面向对象的方法、统一建模语言等软件技术，建立了一个完整的仿真系统。在JASMINE仿真器中，我们将仿真对象划分为若干个组件，如“卫星总线系统”、“光学”、“探测器（在焦平面上）”和“银河系中要观察的恒星”。我们已经完成了一个框架，在这个框架中，我们可以轻松地 ...更多信息通过绘制图表来确定组件的属性对组件的其他属性的依赖关系。此外，我们开发了每个组件，并使用模拟器，我们经常研究观测策略，以及考虑到卫星尺寸，卫星成本等的仪器规格。因此，我们可以确定一个基本的规格，此外，正在与有关卫星系统的工程专家合作，对规格进行详细的审查。此外，由于模拟器的框架已经完成，我们已经将模拟器应用于实际卫星的开发，该卫星的发射计划仅在几年内进行。也就是说，我们将该模拟器应用于我们的非常小的卫星使命（纳米茉莉花项目）的开发。Nano-JASMINE的目标是验证JASMINE空间使命的一些技术特性，希望该项目早日实现。由于应用，卫星设计的详细研究取得了进展。此外，我们还研究了Nano-JASMINE望远镜的性能，卫星的姿态控制，望远镜和卫星的热变化，开发仪器。目前正处于进一步开发阶段，目标是早日发射纳米茉莉卫星。少