The paper looks very professional. Well structured, good English, nice math type setting, nice color figures... I can't help but be impressed, despite the inten

The paper looks very professional. Well structured, good English, nice math type setting, nice color figures... I can't help but be impressed, despite the intended goal of spamming the night sky with advertising. It might be good material to include in a class on orbital mechanics. https://www.mdpi.com/2226-4310/9/8/419/htm https://www.mdpi.com/2226-4310/9/8/419/htm