Re: Corporate Good Citizenship?
“In every possible way your comment shows an outstanding level of ignorance on this subject”
Hmm – the ameliorative actions you’ve mentioned regarding reducing the widely predicted issues affected astronomical observation all have one thing in common – they don’t work sufficiently, do they, otherwise the new set of proposals wouldn’t be necessary.
As for the final number of Starlink satellites planned to be placed in orbit, no definitive number has been released by the company. Their Wiki states: On 15 October 2019, the United States FCC submitted filings to the International Telecommunications Union on SpaceX's behalf to arrange spectrum for 30,000 additional Starlink satellites to supplement the 12,000 Starlink satellites already approved by the FCC. After that, who knows?
I would suggest as many as Musk knows they can get away with until the whole of low-earth orbit is saturated.
I note you don’t mention the elephant in the room – the incontrovertible fact that the bigger the number of satellites, the bigger the chances of low-orbit collisions. Mentioned in this BBC news article written 24hrs ago, https://www.bbc.co.uk/news/technology-62339835
there have already been a number of near misses involving Starlink satellites, including near misses with China’s space station. To quote Dr King of Portsmouth University “"If there are too many fragments (generated by collisions), it could make low-Earth orbit unusable in the future…. And we may not be able to get out of low-Earth orbit into higher orbits, where our navigational satellites and telecoms satellites are situated."
SpaceX's Starlink satellites alone are involved in about 1,600 close encounters between two spacecraft every week, that's about 50 % of all such incidents, according to Hugh Lewis, the head of the Astronautics Research Group at the University of Southampton, U.K. https://www.space.com/spacex-starlink-satellite-collision-alerts-on-the-rise
“These encounters include situations when two spacecraft pass within a distance of 0.6 miles (1 kilometer) from each other. And the situation is bound to get worse. Only (currently) 2,700 of an expected constellation of tens of thousands have been placed into orbit so far. Once SpaceX launches all 12,000 satellites of its first generation constellation, Starlink satellites will be involved in 90% of all close approaches, Lewis’ calculations suggest.”
Add another 30,000+ Starlink satellites into the mix and you don’t need the intellect of Elon Musk to work out what’s likely to happen.