James Webb Space Telescope

bonnjer said
Has to do with not being able to correct for too much thrust. Here's their wording from the blog:

"Webb received an intentional slight under-burn from the Ariane-5 that launched it into space, because it’s not possible to correct for overthrust. If Webb gets too much thrust, it can’t turn around to move back toward Earth because that would directly expose its telescope optics and structure to the Sun, overheating them and aborting the science mission before it can even begin."

I have read that and there are 2 burns built in early to correct trajectory. the first was yesterday and the 2nd is today at sometime. Neither are to increase it's speed but just to aim it better. There will be a third to insert it on it's final orbit on day 29.