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Aerospace blockset >> Blocks > ECLIPSE_MODEL

ECLIPSE_MODEL

This block calculates fraction of the spherical celestial body apparent surface that is visible from behind the other spherical body.

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Contents

Description

This block calculates fraction of the spherical celestial body apparent surface that is visible from behind the other spherical body. Coordinates of the observers and positions of the two celestial bodies are given as inputs. Radii of the two bodies are assument constant with time and are configurable in block parameters dialog. Simple geometrical model is used to calculate the fraction of the body that is visible. Both eclipsed and the visible fraction of the apparent surface of a body are given as outputs in form of real numbers ranging from 0 to 1. Sum of those two always equals to one. For example:

Data types

Dialog box

Radius of eclipsed body - Radius of the body that is being eclipsed.

Radius of eclipsing body - Radius of the body that constraints the view of the other body.

Accept herited events (0/1) - If 1 the block will accept herited events, if 0 it will have its own event input.

Default properties

Radius of eclipsed body = 6.960D+08 (radius of the Sun in kilometers)

Radius of eclipsing body = 6378136.3 (radius of the Earth in kilometers)

Accept herited events (0/1)= 0

Interfacing function

Computational function

See Also

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