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.
| 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 |