What is the pixel resolution of the Dolphin?
The Dolphin has 1513 chambers. The pixels are arranged as shown in the picture below.
In the inner region, the Dolphin has chambers on a grid of 5 mm. The graphics shows it schematically.
In the middle region, there are some "gaps".
In the outer region, the chambers are at 10 mm distance. The diagonals and some lines are filled with chambers.