Astronomy program for student with average-ish grades?

I’m a sophomore looking for an astrophysics/astronomy summer research program. I have pretty average stats (91/93 average and 1370 psat), but could get great teacher recs. Obviously, prestige is a plus, but I really don’t know what programs I qualify for. Thank you!

Bump

I’d apply for Harvard and Brown, both have great Astronomy programs.

http://www.astronomycamp.org looks good and is essentially first come first admitted.