SEAS - System Effectiveness Analysis Simulation - Ballistic Function

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Ballistic Function

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TOPIC: Ballistic Function

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#349

Ballistic Function 2 Years, 8 Months ago	Karma: 0
Upon which reference or equation is the ballistic function based? I need to determine how to approach putting in trajectories from other functions where I have physics based inputs and then do my random variations.

cbfreidhoff

Carl Freidhoff

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Carl B. Freidhoff

#352

Re:Ballistic Function 2 Years, 8 Months ago	Karma: 1
The Ballistic function implements a simple keplarian orbit passing through the two locations (both must have the same altitude). The apogee altitude is set to the Loft factor multiplied by the minimum energy apogee altitude. Loft Factor < 1.0 gives depressed trajectory Loft Factor == 1.0 gives minimum energy Loft Factor > 1.0 gives lofted trajectory

jartherton

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#382

Re:Ballistic Function 1 Year, 6 Months ago	Karma: 0
How is the speed calculated in the function in order to return the total time to travel the desired distance? Thank you in advance.

Razoree

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#384

Re:Ballistic Function 1 Year, 5 Months ago	Karma: 2
The minimum-energy trajectory between the two points is a unique keplarian orbit. The time of flight is then calculated from the keplarian orbital elements: t = 2 * (pi - M) / n where M is the mean anomaly at the launch or impact point (whichever is smaller), and n is the mean motion.

btherien

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