org.orekit.propagation.semianalytical.dsst.utilities

Class FieldCjSjCoefficient<T extends RealFieldElement<T>>

java.lang.Object

org.orekit.propagation.semianalytical.dsst.utilities.FieldCjSjCoefficient<T>

public class FieldCjSjCoefficient<T extends RealFieldElement<T>>
extends Object

Compute the S_j(k, h) and the C_j(k, h) series and their partial derivatives with respect to k and h.

Those series are given in Danielson paper by expression 2.5.3-(5):

C_j(k, h) + i S_j(k, h) = (k+ih)^j

The C_j(k, h) and the S_j(k, h) elements are store as an ArrayList of Complex number, the C_j(k, h) being represented by the real and the S_j(k, h) by the imaginary part.

Constructor Summary

Constructors

Constructor and Description
FieldCjSjCoefficient(T k, T h, Field<T> field) Cj(k, h) and Sj(k, h) constructor.

Method Summary

Modifier and Type	Method and Description
T	getCj(int j) Get the Cj coefficient.
T	getDcjDh(int j) Get the dCj / dh coefficient.
T	getDcjDk(int j) Get the dCj / dk coefficient.
T	getDsjDh(int j) Get the dSj / dh coefficient.
T	getDsjDk(int j) Get the dSj / dk coefficient.
T	getSj(int j) Get the Sj coefficient.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

FieldCjSjCoefficient

public FieldCjSjCoefficient(T k,
                            T h,
                            Field<T> field)

C_j(k, h) and S_j(k, h) constructor.

Parameters:

k - k value

h - h value

field - field for fieldElements

Method Detail

getCj

public T getCj(int j)

Get the C_j coefficient.

Parameters:

j - order

Returns:

C_j

getSj

public T getSj(int j)

Get the S_j coefficient.

Parameters:

j - order

Returns:

S_j

getDcjDk

public T getDcjDk(int j)

Get the dC_j / dk coefficient.

Parameters:

j - order

Returns:

dC_j / d_k

getDsjDk

public T getDsjDk(int j)

Get the dS_j / dk coefficient.

Parameters:

j - order

Returns:

dS_j / d_k

getDcjDh

public T getDcjDh(int j)

Get the dC_j / dh coefficient.

Parameters:

j - order

Returns:

dC_i / d_k

getDsjDh

public T getDsjDh(int j)

Get the dS_j / dh coefficient.

Parameters:

j - order

Returns:

dS_j / d_h