Package org.orekit.forces.drag.atmosphere

Interface NRLMSISE00InputParameters

All Superinterfaces:

Serializable

public interface NRLMSISE00InputParameters
extends Serializable

Container for solar activity data, compatible with NRLMSISE-00 atmosphere model.

This model needs daily and average F10.7 solar fluxes and A_p geomagnetic indices to compute the local density.

Author:

Pascal Parraud

Method Summary

Modifier and Type	Method	Description
double[]	getAp(AbsoluteDate date)	Get the Ap geomagnetic indices.
double	getAverageFlux(AbsoluteDate date)	Get the value of the 81 day average of F10.7 solar flux centered on current day.
double	getDailyFlux(AbsoluteDate date)	Get the value of the daily F10.7 solar flux for previous day.
AbsoluteDate	getMaxDate()	Gets the available data range maximum date.
AbsoluteDate	getMinDate()	Gets the available data range minimum date.

Method Detail

getMinDate

AbsoluteDate getMinDate()
                 throws OrekitException

Gets the available data range minimum date.

Returns:

the minimum date.

Throws:

OrekitException - if data cannot be loaded

getMaxDate

AbsoluteDate getMaxDate()
                 throws OrekitException

Gets the available data range maximum date.

Returns:

the maximum date.

Throws:

OrekitException - if data cannot be loaded

getDailyFlux

double getDailyFlux(AbsoluteDate date)
             throws OrekitException

Get the value of the daily F10.7 solar flux for previous day.

Parameters:

date - the current date

Returns:

the daily F10.7 flux for previous day

Throws:

OrekitException - if the date is out of range of available data

getAverageFlux

double getAverageFlux(AbsoluteDate date)
               throws OrekitException

Get the value of the 81 day average of F10.7 solar flux centered on current day.

Parameters:

date - the current date

Returns:

the 81 day average of F10.7 solar flux centered on current day

Throws:

OrekitException - if the date is out of range of available data

getAp

double[] getAp(AbsoluteDate date)
        throws OrekitException

Get the A_p geomagnetic indices.

A_p indices are provided as an array such as:

• 0 -> daily A_p
• 1 -> 3 hr A_p index for current time
• 2 -> 3 hr A_p index for 3 hrs before current time
• 3 -> 3 hr A_p index for 6 hrs before current time
• 4 -> 3 hr A_p index for 9 hrs before current time
• 5 -> Average of eight 3 hr A_p indices from 12 to 33 hrs prior to current time
• 6 -> Average of eight 3 hr A_p indices from 36 to 57 hrs prior to current time

Parameters:

date - the current date

Returns:

the array of A_p indices

Throws:

OrekitException - if the date is out of range of available data