unix_to_era#
- caput.astro.time.unix_to_era(unix_time)[source]#
Calculate the Earth Rotation Angle for a given time.
The Earth Rotation Angle is the angle between the Celestial and Terrestrial Intermediate origins, and is a modern replacement for the Greenwich Sidereal Time.
- Parameters:
- unix_timearray_like
Unix time.
- Returns:
- eraarray_like
The Earth Rotation Angle in degrees.