Aerospace Fundamentals

Core Aerospace Toolbox functions for unit conversions, time conversions, coordinate transformations, and rotation representations.

When to Use

• Converting between aerospace unit systems (SI, imperial, nautical)
• Computing Julian dates, modified Julian dates, decimal years, or TDB time
• Transforming positions between ECEF, ECI, LLA, or flat Earth frames
• Converting between geodetic and geocentric latitude
• Building DCMs for frame transformations (ECI↔ECEF, ECEF↔NED, body↔wind, body↔stability)
• Converting between Euler angles, DCMs, quaternions, and Rodrigues vectors
• Using the quaternion object for rotation math, interpolation, or composition
• Identifying which coordinate frame data is expressed in

When NOT to Use