Moving ahead from Aa2-18 (which presumably should be counted as number 17 of the glyphs in line Aa2) the subject could be the Sun rather than the Moon:

Aa2-11	Aa2-12	Aa2-13 (12)	Aa2-14
16 Hanga Takaure	17 Poike	18 Pua Katiki	19 Maunga Teatea
Aa2-15	Aa2-16	Aa2-17 (16)
20 Mahatua	21 Taharoa	22 Hanga Hoonu
Aa2-18	Aa2-19	Aa2-20
23 Rangi Meamea	24 Peke Tau O Hiti	25 Maunga Hau Epa
Aa2-21	Aa2-22
26 Oromanga	27 Hanga Moria One

I assume Aa2-18 is the first glyph of a new 'season'. Vaega is now oriented forward.

According to Manuscript E the kuhane made a curve at Maunga Hau Epa.

... The dream soul moved along a curve from Peke Tau O Hiti to the mountain Hau Epa, which she named 'Maunga Hau Epa A Hau Maka O Hiva' ...

We must remember Aa2-2:

Aa2-2 (1)	Aa2-20 (19)
7 Te Piringa Aniva (?)	25 Maunga Hau Epa

There is 'break' at right in Aa2-2 but not in Aa2-20. 2 * 2 = 4 suggests 400 - the cycle is closed, which could explain why the kuhane moved along a curve. In the preceding Aa2-19 there are 2 'breaks', causing the whole tip of the 'arm' in front to come loose.

The mauga ('last') glyph type is here not connected with Maunga Hau Epa. In Aa2-16 mauga could suggest the end of another cycle, viz. one which is measuring 2 * 16 = 32(0). Possibly mauga in Aa2-16 refers to the sun, while the two haga rave in Aa2-2 and Aa2-20 could refer to the moon:

	2
Aa2-14		Aa2-16 (15)
19 Maunga Teatea		21 Taharoa
Aa2-18		Aa2-20 (19)
23 Rangi Meamea		25 Maunga Hau Epa

The creator of the text has added a little sign at bottom left in the two haga rave signs. We must notice this and try to understand why.