Modified Jacchia 70

Computation of atmospheric density for drag effect modeling
Updated 14 Dec 2022

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The Jacchia Reference Atmosphere is an atmospheric model that define values for atmospheric temperature, density, pressure and other properties at altitudes from 90 to 2500 km. Unlike the more common US Standard Atmosphere and related models, the Jacchia model includes latitudinal, seasonal, geomagnetic, and solar effects, but must be supplemented with another model at lower altitudes. The model, first published in 1970 and updated in 1971 and 1977, is based on spacecraft drag data, and is primarily used in spacecraft modeling and related fields. A common assumption while using the Jacchia Model is that the atmosphere rotates with the Earth as a rigid body.
Montenbruck O., and Gill E., "Satellite Orbits: Models, Methods, and Applications," Springer Verlag, Heidelberg, Corrected 3rd Printing, 2005.
Vallado D. A., "Fundamentals of Astrodynamics and Applications," McGraw-Hill, New York, 4th Edition, 2013.

Cite As

Meysam Mahooti (2024). Modified Jacchia 70 (, MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R2021b
Compatible with any release
Platform Compatibility
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Version Published Release Notes

test_Jacchia70.m and SAT_Const.m were modified.


It was revised on 2022-11-19.

The DE430 full matrix is added.

Revised on 2018-01-20.