Kepler's 2nd. Law

[twdeckard]

Fantastic. I’ll look forward to the ROM.

I’ve been working on a package to determine real time altitude and azimuth from a satellites two-line-elements. I am hopelessly mired in the coordinate transformations.

I posted a copy of a ham radio article from ORBIT that does the same, but it wasn’t as enamored with the advantage module as I am.

It is a fun exercise to point out visible objects like the ISS and the Humanity Star and I have a working arduino version which points an antenna array.

https://youtu.be/VG5L5oP2uNk

As a conceit I have thought about plumbing an HP-IL/RS232 to it to place the ‘41 in charge. With the single precision math of the arduino the orbital elements age very quickly.

https://github.com/twdeckard/HP41CX-PLAN...PLAN41.rpn
(the only thing salvageable in the code would be the keps parser)

Thanks for creating and sharing this.

Todd