pyacs.lib.astrotime.decyear2dayno
Convert decimal year to day of year and day fraction.
- pyacs.lib.astrotime.decyear2dayno.decyear2dayno(decyear)[source]
Convert decimal year to day of year and day fraction.
- Parameters:
decyear (float or array-like) – Decimal year.
- Returns:
noday (int or ndarray) – Day of year.
ut (float or ndarray) – Day fraction.
Notes
The input decimal year is assumed to account for leap years; the day of year is the decimal part of decyear times the number of days in the year.