European Space Agency

Royal Belgian Institute for Aeronomy

ua631 - Anderson and Francis atmosphere

subroutine  ua631(mgde, nsp, ksp, dens, ifail)

Parameters:

• mgde [zgeo,in] :: geographic position (geodetic coordinates)

• nsp [integer4,in] :: number of species

• ksp (30) [integer4,in] :: list of species code

• dens (30) [real8,out] :: number density (see note of ua630())

• ifail [integer4,out] :: error flag (see Diagnostics)

Description

The subroutine ua631() implements the atmospheric/ionospheric model of Anderson & Francis to evaluate the density number of different species. The species included in the model are H (code 1), He (code 2), N2 (code 8), O2 (code 9), O. (code 16), N. (code 17), H+ (code 20), He+ (code 21), O+ (code 24), NO+ (code 27) and O+2 (code 28).

References

• Anderson, A.D. and Francis, W.E., A semitheoretical model for atmospheric properties from 90 to 10000km , Lockheed Missiles and Space Company 6-74-64-19 (1964)

Diagnostics

• -63101, atmospheric component not allowed in the model

• -63102, invalid species code

Common Blocks

• uc160 - general constants

Dependencies

Called by

• ua630 - evaluate the atmospheric densities

Calls

None

See also

None

Reported Bugs

None

Examples

None

---

UNILIB/tags/v3.02