SofaBp00 Method

Frame bias and precession, IAU 2000.

Definition

Namespace: ASCOM.Tools
Assembly: ASCOM.AstrometryTools (in ASCOM.AstrometryTools.dll) Version: 3.0.0-rc.1+86c25ce733aebb4d8b1b8a62e84770ea5e972bea

C#

public static void Bp00(
	double date1,
	double date2,
	double[] rb,
	double[] rp,
	double[] rbp
)

VB

Public Shared Sub Bp00 ( 
	date1 As Double,
	date2 As Double,
	rb As Double(),
	rp As Double(),
	rbp As Double()
)

Parameters

date1 Double: TT as a 2-part Julian Date (part 1).
date2 Double: TT as a 2-part Julian Date (part 2).
rb Double: Returned 3×3 frame-bias matrix (row-major, length 9).
rp Double: Returned 3×3 precession matrix (row-major, length 9).
rbp Double: Returned 3×3 bias-precession matrix (row-major, length 9).

Remarks

Computes the frame bias matrix (rb), the precession matrix (rp) and the combined bias-precession matrix (rbp) for a given TT date.

Exceptions

ArgumentNullException	Thrown if any array parameter is null.
ArgumentException	Thrown if any array parameter has incorrect length.

Version Information

.NET Standard

Supported in: 2.0