The numbered green +'s in this plot indicate the lunar antipode at different days, e.g. for a 3 day lunar coast, translunar insertion would have to happen at the +3 day point.pic.twitter.com/tzYRRk7oEV
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HT @Marco_Langbroek for the Chang'e 5 navigational warnings for Monday's launch from Wenchang. The orbital inclination appears to be around 22 degrees, with a launch time around 21:00UTC and translunar insertion around 25 minutes after launch, assuming a 3 to 4 day lunar coast.pic.twitter.com/dZf1Qwmu47
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For the launch the parking orbit is almost co-planar with the line connecting the antipodes, so the launch time/lunar coast period is not well known yet. See for example the situation for the Chang'e 5T1 mission from Xichang, where the launch time confirmed the 4 day lunar coast.pic.twitter.com/Y2SufoDg0R
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I believe the coast period will be around 4.6 days. CE3 and CE4 bare this out. China always plans to have major mission events occur while the spacecraft is high over China which constrains possible coast times. That will place LOI over Beijing's longitude at 2020-11-28T14:45.
Kiitos. Käytämme tätä aikajanasi parantamiseen. KumoaKumoa
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