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JD<sub>Z5</sub> = JD<sub>Z11</sub> + 365.25/2 = 1647817.5 + 31/32.<br />
The <i>xi&#462;oy&#250;</i> was 31/32. The Julian day at noon on the day of Z5 was 1647818. The corresponding date in the proleptic Julian calendar was June 25, 202 BCE and the sexagenary day was x&#299;n m&#462;o. From Table 6, we can see that the summer solstice fell on the second day in month 6 in the Han calendar. Since Z5 was after month 1, we need to use epoch B's conjunctions to calculate its lunation fraction. We use <span c