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muccc / iridium-toolkit

A set of tools to parse Iridium frames
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What coordinate system is the decoded position information belong to? #101

Closed Charky-Chou closed 1 year ago

Charky-Chou commented 1 year ago

really thanks to your code, but i have a question now: after bit_parser ,we can get the position information about Satellite or spot beam position. (it's self.ra_pos_x , self.ra_pos_y , self.ra_pos_z in bitsparser.py , at line 1487), but i have no idea what coordinate system the information belong to . could you tell me ? thank U!

Sec42 commented 1 year ago

The coordinate system used is called ECEF (see https://en.wikipedia.org/wiki/Earth-centered,_Earth-fixed_coordinate_system ) Check for example beam-reception-plotter.py which contains coordinate conversion code