Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 | 1x 1x 16x 16x 16x 16x 16x 16x 16x 16x 16x 16x 16x 16x 16x 16x 16x 16x 16x 16x 16x 16x 1x | import f2hms from "../f2hms";
const ifpos = (jdd: number) => {
const j = Math.floor(jdd);
const jdn = Math.round(jdd);
const fjdn = jdd - j;
const a = 4 * jdn - 6884477;
const x3 = Math.floor(a / 146097);
const r3 = a % 146097;
const b = 100 * Math.floor(r3 / 4) + 99;
const x2 = Math.floor(b / 36525);
const r2 = b % 36525;
const c = 5 * Math.floor(r2 / 100) + 2;
const x1 = Math.floor(c / 153);
const r1 = c % 153;
const cc = Math.floor((x1 + 2) / 12);
const year = 100 * x3 + x2 + cc;
const month = x1 - 12 * cc + 3;
const day = Math.floor(r1 / 5) + 1;
// Fraction of jd to hour, minute, second
const hour = f2hms(fjdn).hour;
const minute = f2hms(fjdn).minute;
const second = f2hms(fjdn).second;
return {
year,
month,
day,
hour,
minute,
second,
};
};
export default ifpos;
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