We can be more precise and concentrate on the midsection of the text, eliminating the two first glyph lines a1-a2 and the last glyph line b5 (all three of which are outside the sun-is-present calendar:

	13		42		33		33
Ka3-1		Ka3-15		Kb1-7		Kb3-1		Kb4-19
1	90					35

In Ka3-1 a rising fish marks a beginning and like a mirror image, in the same position on the other side of the tablet, the glyph shows somebody vanishing.

90 = a quarter of 360, and 1 + 35 = 36.

An alternative reading is to use the moon measure: 91 = a quarter of 364, and 91 + 35 = 126 = 7 * 18.