By observation
Pasola
February and March, after the nyale appear
Determined separately by the rato of each district, so dates differ between Kodi, Lamboya and Wanukaka.
People Nusa Tenggara Timur
Attenuated
A rejected form remains searchable so that older sources stay findable, but it is never used in the prose of an entry.
The people of Sumba island, in large part adherents of Marapu, the ancestral religion administered by rato, and performers of pasola within an annual cycle.
Marapu names the ancestors and spirits who mediate between people and the creator. Ceremonial matters rest with the rato, who also determine the timing of the annual cycle by observation, chiefly the appearance of the nyale sea worms. That determination cannot be computed in advance from any calendar.
By observation
February and March, after the nyale appear
Determined separately by the rato of each district, so dates differ between Kodi, Lamboya and Wanukaka.