1/ So, feel free to read this thread.https://twitter.com/bara/status/894783903239516160 …
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5/ I specifically wanted the gravel boats to use GPS on their way in bc the distance from the moon to Earth is such that inertial nav errors
6/ would be too high. I can't find the spreadsheet now, but I did the calculation to find out what thousandth-of-a-second-of-angle >
7/ a target on earth is, as seen from the moon's perspective. Inertial Nav wouldn't cut it.
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