Environment

Use standards-based environmental reference models to generate atmospheric, gravity, and magnetic-field profiles, compute celestial-body position and velocity, and extract space-weather data.

Use standards-based environmental reference models to represent atmospheric, gravity, and magnetic-field profiles, with nonstandard or lapse-rate atmospheres. Compute the position and velocity of celestial bodies via ephemeris data, perform geodetic calculations, and extract space weather information (e.g. solar flux and geomagnetic indices) with validated tools.

Functions

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Aerospace-Specific Data

aeroDataPackage Start Add-On Explorer to download, install, or uninstall aerospace-specific data

Atmosphere

`atmoscira`	Use COSPAR International Reference Atmosphere 1986 model
`atmoscoesa`	Use 1976 COESA model
`atmoshwm`	Implement horizontal wind model
`atmosisa`	Use International Standard Atmosphere model
`atmoslapse`	Use Lapse Rate Atmosphere model
`atmosnonstd`	Use climatic data from MIL-STD-210 or MIL-HDBK-310
`atmosnrlmsise00`	Implement mathematical representation of 2001 United States Naval Research Laboratory Mass Spectrometer and Incoherent Scatter Radar Exosphere
`atmospalt`	Calculate pressure altitude based on ambient pressure

Planetary Data

`aeroReadIERSData`	File containing current International Astronomical Union (IAU) 2000A Earth orientation data
`deltaCIP`	Calculate Celestial Intermediate Pole (CIP) location adjustment
`deltaUT1`	Calculate difference between Coordinated Universal Time (UTC) and Principal Universal Time (UT1)
`earthNutation`	Implement Earth nutation
`moonLibration`	Moon librations
`planetEphemeris`	Position and velocity of astronomical objects
`polarMotion`	Calculate Earth polar motion

Geodesy

`geocradius`	Convert from geocentric latitude to radius of ellipsoid planet (Since R2021b)
`geoidegm96`	Calculate geoid height as determined from EGM96 Geopotential Model
`geoidheight`	Calculate geoid height

Gravity

`gravitycentrifugal`	Implement centrifugal effect of planetary gravity
`gravitysphericalharmonic`	Implement spherical harmonic representation of planetary gravity
`gravitywgs84`	Implement 1984 World Geodetic System (WGS84) representation of Earth gravity
`gravityzonal`	Implement zonal harmonic representation of planetary gravity

Magnetic Models

`igrfmagm`	Calculate Earth magnetic field and secular variation using International Geomagnetic Reference Field
`wrldmagm`	Use World Magnetic Model

Space Weather

`aeroReadSpaceWeatherData`	Output MAT file of space weather data (Since R2023a)
`fluxSolarAndGeomagnetic`	Extract solar flux and geomagnetic field data (Since R2023a)

Topics

Add Ephemeris and Geoid Data for Aerospace Products
Use Add-On to add ephemeris and/or geoid data.

Featured Examples

Comparing Zonal Harmonic Gravity Model to Other Gravity Models

Examine the zonal harmonic, spherical, and 1984 World Geodetic System (WGS84) gravity models.

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Visualize World Magnetic Model Contours for 2020 Epoch

Visualize contour plots of calculated values for the Earth magnetic field using World Magnetic Model 2020 (WMM2020).

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Visualizing Geoid Height for Earth Geopotential Model 1996

Calculate the Earth geoid height using the EGM96 Geopotential Model.

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Marine Navigation Using Planetary Ephemerides

Perform celestial navigation of a marine vessel by using the planetary ephemerides.

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Estimate Sun Analemma Using Planetary Ephemerides and ECI to AER Transformation

Estimate the analemma relative to the Royal Observatory at Greenwich, United Kingdom.

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