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2015 PDC and Orbiter accuracy Thank you for the interesting and timely thread about the precision of ORBITER's integration engine. Keithth G's post #6 answered my question of whether ORBITER's engine uses Sun-Centered or Solar System Barycenter elements/coordinates. I tried a much more...

Great Launch ! Good luck for another ambitious mission !

I'm getting a "404 (Page Not Found) Error" when I click on the Download link. Cannot recall ever having a problem downloading from Orbit Hangar before. Looking forward to this addon !

Spacecraft with Dolphin co-pilots....with their own spacesuits.

Over the years, I've also tried "doing the math" and calculating specs to spacecraft or trajectories in Clarke's stories. As you correctly read, Rama's inbound orbit had an "e" greater than 1. Also, Rama made no course corrections from discovery until after Endeavor's separation. Have you...