Chances of Admission?

[feveroffate]

Hi, I'm a United States citizen who is currently studying in India. I'm interested in studying aerospace engineering at University of Maryland - College Park, Penn State, Boston University, Georgia Tech etc. I got a 2140 on my SAT, 650 on Critical Reading, 710 on Math, and 790 on Writing. I have no idea what my GPA is, as I cannot convert Indian grades to US ones. I only got a 660 on my Physics SAT II (very low, I know) and I will be writing Math I next month. I understand that the essay part of the application is important, but am not worried about that part, since I have always been able to write excellent essays. I'm very worried about whether I have any chances of being admitted into those colleges or not. Any thoughts? And does anyone have any idea what a good GPA would be, for those colleges?

[Jones1337ems]

~70 percentile for domestic....maybe 90 for you....