>they have no other , real , modern proofs of the ball
I literally showed you proof using data from 2017
Just because the method is old does not mean the method is flawed or the answer is wrong

If you want modern proof of the ball, here's Apollo 8
And here's the DSCOVR satellite showing the rotation of the Earth with images going back to 2015
https://epic.gsfc.nasa.gov/

There's more, but you'll just reject it out of hand, so why waste time?