9 Dec is the Board Date. Just confirmed it via NRC's N311 sharepoint site accessible by recruiters.
I'd also like to piggyback on
@NavyOffRec comment about OAR vs. GPA. Your high GPA could very easily offset your low OAR. It really comes down to how many they want to select at this board vs. how many applied...and we'll never know the inner workings/discussions at the board. If you were my applicant, I would absolutely send you to board and if a non-select, plan on retaking the OAR as soon as possible. It's best never to try and predict what the board will do for SWO. They raised the minimum OAR from 35 to 45 about a year ago which really cut the number of applications and like others, I've had people selected with a 45.
Best of luck!