Orbital Drag Decay Estimator
Loading author...
Estimate circular-orbit semi-major-axis decay rate from drag area, mass, density, and velocity.
Cd
km3/s2
Atmospheric density must be greater than 0.
Valid inputs are needed before results can be shown.
Open Source and Easy to Use Elsewhere
This tool is open source and the underlying logic is fully transparent. You can inspect the code, understand the calculations, and contribute improvements. If you want to use the tool in your own website, course page, or learning platform, you can also embed it directly and start from a ready-made iframe setup for this exact tool.
Open source: review the implementation and see how the results are produced.
Embeddable: preview this tool, copy the iframe, and use it in your own site or LMS.