Table 2.

Flexitron^{® 192}Ir source position on radiochromic film versus SPS centroid in the split-ring plane from CT scans of the Venezia^TM lunar ovoids. Positive values denote that the ¹⁹²Ir source is more distal than the SPS

		1300 mm (distal)	1290 mm	1280 mm
22 mm	Maximum 2D difference (mm)	0.4	0.4	0.3
	Average 2D difference (mm)	0.2	0.2	0.2
	Standard deviation (mm)	0.2	0.2	0.1
26 mm	Maximum 2D difference (mm)	0.7	0.5	0.6
	Average 2D difference (mm)	0.6	0.3	0.3
	Standard deviation (mm)	0.1	0.2	0.3
30 mm	Maximum 2D difference (mm)	0.4	0.7	0.3
	Average 2D difference (mm)	0.3	0.5	0.2
	Standard deviation (mm)	0.2	0.3	0.1