88611 Teharonhiawako (provisional designation ) is a trans-Neptunian object and a member of the cold classical Kuiper belt. Teharonhiawako was discovered on 20 August 2001, by the Deep Ecliptic Survey, and its companion, Sawiskera, was identified a month later. The primary is named after Teharonhia꞉wako, a god of maize in the Iroquois creation myth, while the secondary is named after his evil twin brother Sawiskera. The objects were named in 2007.
The pair form a binary minor planet, which orbit each other. Their orbit has the following parameters: semi-major axis—, period— days, eccentricity— and inclination—° (retrograde). The total system mass is about .
The primary measures about 220 km in diameter. The large companion is named Sawiskera (formally designated (88611) Teharonhiawako I), which at 126 km in diameter is about two-thirds the size of its primary. The two components together are known as the Teharonhiawako–Sawiskera binary system.
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