/sci/ - Science & Math

>>15684722
https://twitter.com/coastal8049/status/1693849620529770837

> #Chandrayaan3 lander's orbit is very well described by the Doppler data. The residuals are very low and the wobbles you see in the residual plot are artificial and introduced by the ground station. The final orbit is precisely known now allowing landing timing estimates.

>>15684720
well wasn't ULA limited by Russian engines, which they ran out of and cant get more off
and ArianeSpace probably made the decision to stop building them long time ago and assumed Ariane 6 would not be delayed as much as it has

https://en.wikipedia.org/wiki/Ariane_6
> In 2017, the European Space Agency (ESA) set 16 July 2020 as the deadline for the first fligh

restarting Ariane 5 production would probably have been very expensive, just cheaper to put the payloads on Falcon 9, its not like ESA loses the ability to launch anything to orbit at all due to Europe being close allies with the US
the only problem is perhaps some humiliation or something but in the end does it really matter?
the way bigger problem is that they didn't try to start developing a reusable rocket long time ago, Ariane 6 is going to be completely obsolete and its not even launching yet