What is TOA?
Posted: Fri Jan 03, 2020 1:38 pm America/New_York
What is TOA?
Top-of-the-Atmosphere (TOA) is a surface approximately 20 km above the Earth's surface.
The TOA is an ellipsoid x²/a² + y²/a² + z²/b² = 1
where a = 6408.1370 km and b = 6386.6517 km.