>Finally, let's compute J1, which was 3 solar terms after Z11. So<br />
JD<sub>J1</sub> = JD<sub>Z11</sub> + (3/24)&times;365.25 = 1673613.5 + 3/4, <br />
L = (JD<sub>J1</sub> - JD<sub>10</sub>)/(29 + 499/940) = 2 + 5198/9253, <br />
lunation fraction of J1 = 5198/9253 &approx; 10.7/19.<br />
The <i>xi&#462;oy&#250;</i> of J1 was 3/4. The Julian day at noon on the day of J1 was 1673614. The corresponding date in the proleptic Julian calendar was Feb. 8, 131 BCE and the sexagenary date was d&#299;ng h&#224;i