Description Usage Arguments Details Value
Compute Julian Day as per IHA v7.
1 | get_jd(d)
|
d |
Date or POSIX*t object |
IHA defines Jan 1 as JD 1 and Dec 31 as JD 366 for both leap years and non-leap years. In non-leap years, JD 60 (Feb 29) is skipped, so that e.g. Feb 28 2003 is JD 59 and Mar 01 2003 is JD 61.
Integer Julian date.
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