agi.foundation.celestial

(agi.foundation.models-2023r2.jar)

Class DawnCeresVestaOrientation

java.lang.Object

agi.foundation.celestial.DawnCeresVestaOrientation

public final class DawnCeresVestaOrientation
extends Object

This is a collection of the orientation information available for Ceres and Vesta. The data comes from results of the Dawn mission to Ceres and Vesta.

See Also:

IauOrientationAxes

Method Summary

Modifier and Type	Method and Description
static IauOrientationParameters	computeCeres(JulianDate date) Compute the IauOrientationParameters for Ceres.
static IauOrientationParameters	computeVesta(JulianDate date) Compute the IauOrientationParameters for Vesta.

Methods inherited from class java.lang.Object

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

Method Detail

computeCeres

@Nonnull
public static IauOrientationParameters computeCeres(@Nonnull
                                                              JulianDate date)

Compute the IauOrientationParameters for Ceres. By default, the values from Iau2015Orientation are used for Ceres's axes instead of the values from this method.

Attitude for Ceres based upon the DAWN mission results. Information used by this function is from DATA/SHADR/JGDWN_CER18D_SHA.LBL, available from the Planetary Science Institute website using the link DWNCGRS_2 (Version 3), released 2018-05-08.

The values used by this function agree with the spice pck file dawn_ceres_v06.tpc available from the NAIF website. It references the source document as CERES_COORD_SYS_180628.PDF available from the Planetary Science Institute website which is an updated version of an original version CERES_COORD_SYS.PDF document from 2015-10-14.

Parameters:

date - The date to evaluate the parameters.

Returns:

The IauOrientationParameters representing the orientation of Ceres.

computeVesta

@Nonnull
public static IauOrientationParameters computeVesta(@Nonnull
                                                              JulianDate date)

Compute the IauOrientationParameters for Vesta.

Attitude for Vesta based upon the DAWN mission results. Orientation is from the file "JGDWN_VES20H_SHA.TAB" available from the website of the Planetary Science Institute. This data is derived from the DAWN mission analysis.

Parameters:

date - The date to evaluate the parameters.

Returns:

The IauOrientationParameters representing the orientation of Vesta.