Path: Interplanetary/Ephemeris
% Read in an asteroid database file and return elements
Reads the file astorb.dat found at http://naic.edu/~nolan/astorb.html. A short
version is included with the toolbox. For the full version you need to
download astrob.dat and put it in your MATLAB path.
There are four ways of selecting asteroids:
'all' All of the asteroids in the database
[1 7 300] Selected lines in the database
'ceres' Name of one asteroid
{'ceres' 'egeria'} A cell array of names
If no outputs are given, it will display the asteroids and propagate
them for one Earth year. It draws the orbits of the Earth and Jupiter
for reference.
Type ReadAsteroidDatabase for a demo using astorbshort.dat.
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Form:
[el, jD, name, id] = ReadAsteroidDatabase( 'all' )
[el, jD, name, id] = ReadAsteroidDatabase( 'ceres' )
[el, jD, name, id] = ReadAsteroidDatabase( [1 7 300] )
[el, jD, name, id] = ReadAsteroidDatabase( {'ceres' 'netis'} )
ReadAsteroidDatabase( 'ceres' ); % make plot
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Inputs
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a (-) Asteroids to return (see above)
file (1,:) Optional file name
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Output
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el (:,6) Elements
jD (:,1) Julian date of epoch
name {:} Names
id {:} Id (may not be a number)
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Reference: http://naic.edu/~nolan/astorb.html
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SC: BasicOrbit/El2RV Common: Database/Constant Common: General/StringMatch Common: Graphics/NewFig Common: Graphics/XLabelS Common: Graphics/YLabelS Common: Graphics/ZLabelS Common: Time/Date2JD
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