#TITLE_ALTERNATIVE#

• 主要作者: TITARI WAHYUNINGTYAS (NIM 10303014), DIAH
• 格式: Final Project
• 語言: Indonesia
• 在線閱讀: https://digilib.itb.ac.id/gdl/view/7608

The first step of the asteroid’s deflection mitigation is to survey the sky. The survey focuses on Potentially Hazardous Asteroids (PHAs) which have close encounter distance of <0.05 AU. If an asteroid has a resonant return with the Earth, there is a possibility that on its subsequent return it will impact the Earth.<p> <br /> <br /> <br /> Studies about PHAs enable us to find out their impact possibility at a certain timespan. Thus there is a need to do asteroid’s orbital deflection mitigation. Deflection mitigation has two concepts, i.e. impulsive and slow push. Impulsive mitigation can be done by detonating nuclear explosion or impacting the two massive bodies. On the other hand, slow push mitigation can be done by giving a momentum to the asteroid in a rather longer time. Generally, both of them give a velocity change of &#916;v to the asteroid, so that its orbit changes and later on removes the Earth from its danger.<p> <br /> <br /> <br /> The aims of this final project are (1) to reconstruct the plot of &#916;v, which is a velocity change needed to deflect asteroid’s orbit, that has been done by Carusi et al. (2002) and Izzo (2005), (2) to calculate the value of &#947;, that is a non dimensional parameter of the geometry of close encounter, and (3) to investigate the value of the deflection, s, for PHAs Apophis 2004 MN4, 2004 VD17, 2000 QS7, 2000 SG344, and 2007 RY19.