Locating ko ehu in the east instead of in the west (where Sun goes down in the evening) rises an obstacle, but it can be overcome by assuming the islanders had a method of using the position of full moon against the starry sky to deduce the current location of sun on his path, i.e. a system of lunar mansions which are 'reflecting' the stations of the sun. Such a system was used in India and there the lunar mansions were named nakshatras (from Sanskrit nakshatra = star).

If 24 stations will cover the half year when Sun is present, then we will expect midsummer to be at the 12th station, in the center of the northern coast:

12 vai poko aa raa mata turu

24 ko ehu ko mahatua a piki rangi a hakakihikihi mahina

Presumably vai is a technical term which means the 'fire' is extinguished. The 'eye' (mata) of sun (raa) will descend ('drop') beyond midsummer:

Turu

To come down, to go down, to descend; ka-turu-age koe ki tai, go down to the sea now; turuga, coming down, descent. Vanaga.

1. To fall in drops, to flow, to leak, to descend, a drop; turu ki tai, to take refuge at sea; hakaturu, to cause to descend, to lower, to take soundings; hakaturuturu, to heave and pitch. Turuga, declivity. Turuvai, water conduit. P Mgv.: akaturu, to conduct water in a drain. Ta.: tuturu, to fall in drops. 2. To stay, to prop. T Pau.: turu, a post, pillar, to sustain. Mgv.: turu, a support, rod, stay, to sustain. Ta.: turu, stay, support; turuturu, posts of a house. Ha.: kukulu, a pillar, a post. 3. To come, to arrive, to overcome; tehe e turu, through and through; hakarava hakaturu, quadrangular. Churchill.

Vai poko sounds as if it was alluding to Te Poko Uri (according the 1st list of names), i.e. to Rano Kau:

Poko

1. Fragrant; to smell, to give off a smell: he-poko te eo, it gives off a pleasant smell. 2. To hunt, to catch with a trap, to snare. He-kî e Tori: maaku-á e-ea ki te manu, e-poko i te po i ruga i te opata. Tori said: I shall go and catch birds at night, up on the cliff. 3. Thunder (also hatutiri). 4. (Also: pokopoko.) Hollow, hole, depression, any deep, concave object; to leave in a hole, in a depression. Pokoga, chasm; summit. Pokohata, female rat: kio'e pokohata. Pokopoko, woman bent under the weight of her years: vî'e pokopoko. Vanaga.

1. Sound of the sea; tai poko, breakers. Pokopoko, to slap water. Mgv.: pokokina, resonant, clear-toned. Mq.: poko, to slap the water in imitation of drumming; pokokina, sound of water. 2. Rut, beaten path. P Pau.: poko, hollow; pokopoko, concave, to excavate. Mgv.: poko, to dig, to excavate, to hollow out. Mq.: pokoko, to crack open; pokona, to hollow out, to excavate. Ta.: poópoó, hollow, deep. 3. Infernal; pokoga, hell, infernal cave; topa ki te pokoga, to damn (lit: to go down to hell.) Mq.: pokona, cavity, hole. Churchill.

Pokopoko: 1. Womb. PS Sa.: po'opo'o, clitoris. Mq.: pokopoko, pudendum muliebre. 2. Pokopoko vae, footprints. 3. Concave, deep, ditch, mysterious; pokopoko ihu, nostril (Ta.: poópoó ihu); pokopoko ke, fathomless; pokopoko taheta, concave. Hakapokopoko, to deepen. Chuchill

Looking at glyph line Qa3 (halfway to Qa6) - guessing each line covers 1 month - we find tahana glyphs:


Qa6-30	Qa6-31	Qa6-32 (237)	Qa6-33	Qa6-34	Qa6-35


Qa3-25	Qa3-26	Qa3-27	Qa3-28	Qa3-29	Qa3-30

Qa3-31	Qa3-32 (98)	Qa3-33	Qa3-34	Qa3-35

Sun is here shown growing (kai in Qa3-28 and Qa3-34) but seemingly his growth is at its end (maro). The bottom part of tahana in Qa3-26 is similar to that in hupee in Qa6-32, and the number of the glyph for tahana in Qa3-32 agrees with the number for hupee in Qa6-32. 6 * 32 = 196 and 3 * 32 = 96. Maybe 32 was used to symbolize 'growth' (being the 5th term in the series 2, 4, 8, 16, 32, 64 ...).

The rare tahana glyphs may be related to the rare hupee glyphs. Once we have realized this, we can perceive a hupee sign also in tahana in Ab5-23:


Ab5-21	Ab5-22	Ab5-23	Ab5-24	Ab5-25	Ab5-26