Table 2.

Timing of SEPA ring dynamics (28°C)

Ring dynamicsa	Ring
	1	2b	3c	4	5
• → ○	2 (min)	8	∼5	1.5	9
○ (no change)	3	11.5	4.5	7	4
○ →	24	∼24	28	35	21.5
Total time	29	∼43.5	∼37.5	43.5	34.5

^a Three stages of ring dynamics are shown: formation of the ring from a single spot, maintenance of a full-size ring, and ring constriction (and disappearance). 

^b Ring 2 goes out of focus, allowing only an approximation of the constriction time to be made. 

^c Ring 3 is just starting to form at the start of the sequence, allowing only an approximation of the formation time to be made.