Path: Imaging/Optics
% Errors due to planet measurement related errors.
The errors are due to the measurement angle of the star/planet vector,
the error due to the uncertainty in the radius of the planet
and the error due to the planet chordwidth measurement error.
The first and last are due to the resolution of the camera and
the middle due to the uncertainty in the actual radius of the planet.
Type OpticalAngleError for a demo of the error for a earth orbiting
spacecraft using the moon as a measurement source.
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Form:
err = OpticalAngleError( a, theta, alpha, aE, d, n )
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Inputs
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a (1,1) Planet radius (rad)
theta (1,1) Angle between the planet vector and star (rad)
alpha (1,1) Angular radius of the planet (rad)
aE (1,1) Planet radius error (rad)
d (1,:) Aperture (mm)
n (1,1) Number of points to average for chord
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Outputs
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err (1,1) Data structure
.a (1,1) Error due to radius error (km)
.theta (1,1) Error due to star/planet error (km)
.alpha (1,1) Error due to chord error (km)
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AC: ACData/ACTConstants SC: SCData/sCTConstants Common: CommonData/Constants Common: CommonData/SwooshWatermark Common: CommonData/xSplashSmall Common: Database/Constant Common: General/CellToMat Common: General/DeleteCell Common: General/MatToCell Common: General/Watermark Common: Graphics/NewFig Common: Graphics/Plot2D Common: Graphics/PltStyle
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