Celestial Phenomena

Calculate position and velocity of bodies

Calculate the position and velocity of celestial bodies and implement Earth nutation and Moon librations. Download ephemeris data for the celestial phenomena blocks using the aeroDataPackage function. To convert these coordinates to Earth-centered Earth-fixed (ECEF), use the Direction Cosine Matrix ECI to ECEF block. Extract and return solar flux and geomagnetic index.

Blocks

Delta UT1	Calculate difference between principal Universal Time (UT1) and Coordinated Universal Time (UTC) according to International Astronomical Union (IAU) 2000A reference system
Earth Nutation	Implement Earth nutation
Earth Orientation Parameters	Calculate Earth orientation parameters (EOP)
Planetary Ephemeris	Implement position and velocity of astronomical objects
Moon Libration	Implement Moon librations
Solar Flux and Geomagnetic Index	Return solar flux and geomagnetic index (Since R2023a)