Question about the UT Austin Honors Colloquium

Hi, I was wondering whether or not anyone on here is familiar with the UT honors colloquium? Many of my friends have gotten the invitation to attend last week or 2 weeks ago, but I have not even though I got a better PSAT score than they did (224 in Texas). Is it based on other factors as well? Also, does anyone know when the deadline for UT emailing the invitations are? Any help or feedback is appreciated. Thanks!

OP, there is another thread about this on CC and it looks like there are a number of kids who did not get an invite- including my D with a PSAT 229 and a SAT 2200 and high GPA/rank. Go to their website and you can self nominate.