It's been 5,175 days (give or take 100) since Tesla was founded!
16,865 days since Elon Musk was born!
39,830 days since the Model T production began!
Any other irrelevant days you'd like to count? It's been 33 days since the Model 3 production deliveries began. We have guidance from Tesla as to what to expect from here--100ish in August, 1300-ish in Sept (1500 Q3 - 100 - 30 = 1370), and ramp truly beginning in October with first non-insider deliveries. Further, we've been told that those initial ramp-up months leading to October will be an inconsistent, 'production hell.' Today is August 30th. It's not only unsurprising that we don't have more information than that, but any information we did have would be of limited use since its ability to be used for extrapolation would be close to nil.
Perhaps not an intentional joke, but your apparently-serious posing of such a question, using 519 days as a starting point, reveals your line of inquiry to be quite humorous.