Msise00Drag Class Reference
[GeoDynamics]

#include <Msise00Drag.hpp>

Inheritance diagram for Msise00Drag:

[legend]Collaboration diagram for Msise00Drag:

[legend]List of all members.

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Detailed Description

This class computes the NRLMSISE atmosphere model.

The NRLMSISE-00 model was developed by Mike Picone, Alan Hedin, and Doug Drob. They also wrote a NRLMSISE-00 distribution package in FORTRAN which is available at http://uap-www.nrl.navy.mil/models_web/msis/msis_home.htm

Dominik Brodowski implemented and maintains this C version. You can reach him at devel@brodo.de. and check http://www.brodo.de/english/pub/nrlmsise/index.html for updated releases of this package.

Definition at line 55 of file Msise00Drag.hpp.

Public Member Functions
	Msise00Drag ()
	Default constructor.
virtual	~Msise00Drag ()
	Deconstructor.
void	test ()
virtual double	computeDensity (UTCTime utc, EarthBody &rb, Vector< double > r, Vector< double > v)
	Abstract class requires the subclass to compute the atmospheric density.
Protected Member Functions
void	gtd7 (struct nrlmsise_input *input, struct nrlmsise_flags *flags, struct nrlmsise_output *output)
	Neutral Atmosphere Empircial Model from the surface to lower exosphere.
void	gtd7d (struct nrlmsise_input *input, struct nrlmsise_flags *flags, struct nrlmsise_output *output)
	This subroutine provides Effective Total Mass Density for output d[5] which includes contributions from "anomalous oxygen" which can affect satellite drag above 500 km.
void	gts7 (struct nrlmsise_input *input, struct nrlmsise_flags *flags, struct nrlmsise_output *output)
	Thermospheric portion of NRLMSISE-00.
void	ghp7 (struct nrlmsise_input *input, struct nrlmsise_flags *flags, struct nrlmsise_output *output, double press)
	To specify outputs at a pressure level (press) rather than at an altitude.
Protected Attributes
double	ap_opt
double	f107_opt

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Constructor & Destructor Documentation

Msise00Drag (   )  [inline]

Default constructor. Definition at line 60 of file Msise00Drag.hpp.

virtual ~Msise00Drag (   )  [inline, virtual]

Deconstructor. Definition at line 67 of file Msise00Drag.hpp.

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Member Function Documentation

double computeDensity (  UTCTime  utc, EarthBody &  rb, Vector< double >  r, Vector< double >  v )  [virtual]

Abstract class requires the subclass to compute the atmospheric density. Parameters: utc  epoch in UTC rb  EarthRef object. r  Position vector. v  Velocity vector Returns: Atmospheric density in kg/m^3 Implements AtmosphericDrag. Definition at line 300 of file Msise00Drag.cpp. References Msise00Drag::nrlmsise_input::alt, Msise00Drag::nrlmsise_input::ap, Msise00Drag::nrlmsise_output::d, Msise00Drag::nrlmsise_input::doy, Msise00Drag::nrlmsise_input::f107, Msise00Drag::nrlmsise_input::f107A, Msise00Drag::nrlmsise_input::g_lat, Msise00Drag::nrlmsise_input::g_long, Position::getAltitude(), Position::getGeodeticLatitude(), Position::getLongitude(), Msise00Drag::gtd7(), Msise00Drag::gtd7d(), gpstk::J2kToECEFMatrix(), Msise00Drag::nrlmsise_input::lst, Msise00Drag::nrlmsise_input::sec, Msise00Drag::nrlmsise_flags::switches, and Msise00Drag::nrlmsise_input::year.

void ghp7 (  struct nrlmsise_input *  input, struct nrlmsise_flags *  flags, struct nrlmsise_output *  output, double  press )  [protected]

To specify outputs at a pressure level (press) rather than at an altitude. Definition at line 1343 of file Msise00Drag.cpp. References Msise00Drag::gtd7(), gpstk::log10(), gpstk::pow(), gpstk::sqrt(), and Msise00Drag::test().

void gtd7 (  struct nrlmsise_input *  input, struct nrlmsise_flags *  flags, struct nrlmsise_output *  output )  [protected]

Neutral Atmosphere Empircial Model from the surface to lower exosphere. Definition at line 1206 of file Msise00Drag.cpp. References Msise00Drag::nrlmsise_output::d, Msise00Drag::gts7(), gpstk::pow(), and Msise00Drag::nrlmsise_output::t. Referenced by Msise00Drag::computeDensity(), Msise00Drag::ghp7(), Msise00Drag::gtd7d(), and Msise00Drag::test().

void gtd7d (  struct nrlmsise_input *  input, struct nrlmsise_flags *  flags, struct nrlmsise_output *  output )  [protected]

This subroutine provides Effective Total Mass Density for output d[5] which includes contributions from "anomalous oxygen" which can affect satellite drag above 500 km. See the section "output" for additional details. Definition at line 1332 of file Msise00Drag.cpp. References Msise00Drag::nrlmsise_output::d, and Msise00Drag::gtd7(). Referenced by Msise00Drag::computeDensity().

void gts7 (  struct nrlmsise_input *  input, struct nrlmsise_flags *  flags, struct nrlmsise_output *  output )  [protected]

Thermospheric portion of NRLMSISE-00. Definition at line 1424 of file Msise00Drag.cpp. References gpstk::cos(), gpstk::exp(), gpstk::pow(), and gpstk::sin(). Referenced by Msise00Drag::gtd7().

void test (   )

Reimplemented from ForceModel. Definition at line 46 of file Msise00Drag.cpp. References Msise00Drag::ap_array::a, Msise00Drag::nrlmsise_input::alt, Msise00Drag::nrlmsise_input::ap, Msise00Drag::nrlmsise_input::ap_a, Msise00Drag::nrlmsise_input::doy, Msise00Drag::nrlmsise_input::f107, Msise00Drag::nrlmsise_input::f107A, Msise00Drag::nrlmsise_input::g_lat, Msise00Drag::nrlmsise_input::g_long, Msise00Drag::gtd7(), Msise00Drag::nrlmsise_input::lst, Msise00Drag::nrlmsise_input::sec, Msise00Drag::nrlmsise_flags::switches, and Msise00Drag::nrlmsise_input::year. Referenced by Msise00Drag::ghp7().

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Member Data Documentation

double ap_opt [protected]

Definition at line 86 of file Msise00Drag.hpp.

double f107_opt [protected]

Definition at line 87 of file Msise00Drag.hpp.

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The documentation for this class was generated from the following files:

• Msise00Drag.hpp
• Msise00Drag.cpp

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