This view is looking up at the TOGA from under the TMA. X-rays from the TMA arrive from the right, pass through the gratings, and continue to the left towards the HXDA. The TOP quadrant is populated with 8 MEGs (larger sized square frames), the BOTTOM quadrant with 8 HEGs, and the NORTH (left) and SOUTH (right) quadrants each have 5 LEG modules of 3 circular facets each.