Possibly the henua sign has here been used in order to indicate that the ariga erua glyph is not connected with the true phases of the sun but is instead dictated by the structure of the calendar.

The henua sign could refer to the 'front side' ('face' side) of the calendar. In G, for instance, side a is obviously the 'front side' ('ariga') and side b the 'back side' ('tu'a'). And the henua periods in G belong on side a.

This explanation is in harmony with the 229 days common to side a in G and the table below:

681
Hb9-42 Hb9-43 Hb9-44 *Ha9-41 *Ha9-42 *Ha9-43
229

Moreover, according to H the sun seems have reached his halfway mark at Ha9-2, 12 days before *Ha9-42:

36
Ha9-2 Ha9-3 Ha9-4 *Ha9-41 *Ha9-42 *Ha9-43
150 12 489 / 3 = 163

Counting days from winter solstice instead, would change day 150 into day number 150 + 64 = 214, a month after midsummer (214 - 183 = 31).

163 + 64 = 227 is only 2 days before day 229:

*Ha9-44 *Ha9-45 *Ha9-46 *Ha9-47 *Ha9-48 *Ha9-49
228 229

In *Ha9-48 the sitting down figure is turned around and looking back. His front 'fist' is held high, as if filled with promise about the future. A moon sign is used as 'elbow ornament', which seems to say that it is the back side (tu'a) which lies ahead.

9 * 48 = 432, presumably alluding to the 432 days ín the text. In *Ha9-49 the central gap in the glyph confirms that one 'chapter' has ended and another lies ahead. The sign resembles that in Eb6-1:

Eb5-29 Eb5-30 Eb5-31
Eb5-32 Eb5-33 Eb5-34
Eb5-35 Eb6-1 Eb6-2