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PS1%202010_Soln[1]

# PS1%202010_Soln[1] - AAE532 ProblemSet1 Solution...

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AAE 532 Problem Set 1 Solution 1 a) Near Earth Asteroid 2002 EY2, from the webpage http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2002%20EY2;orb=1 2002 EY is Classified as “ Apollo [NEO] ” class, meaning “ Near-Earth asteroid orbits which cross the Earth's orbit similar to that of 1862 Apollo (a > 1.0 AU; q < 1.017 AU) ”. The “size” of this orbit is best given by its semi-major axis, “a” in the table: 1.726009 AU The period of this orbit is 828.2532 days, or 2.27 yr.

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1 b) Let’s say my birthday is June 1 st , 2011. Let’s not say how old I’ll be. Following the link to generate my own close approach table ( http://neo.jpl.nasa.gov/cgi-bin/neo_ca was linked from the top of the previous page), I request a table of encounters from the “Future (within a year)” and increase the Nominal dist to <= 0.2 AU (instead of the default 0.1 AU) and find 203 close-Earth approaches in the next year. One is actually on June 1 st , my supposed birthday. The object is 188174 (2002 JC), it is classified as “ Atan [NEO],” meaning “ Near-Earth asteroid orbits similar to that of 2062 Aten (a < 1.0 AU; Q > 0.983 AU)
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• Spring '10
• KathleenHowell
• Astronomical unit, International Astronomical Union, IAU General Assembly, Near-Earth asteroid orbits

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