System.err.println("Source not generated!");
// Create position vector
GVector3d vICRS = new GVector3d(Math.toRadians(ra), Math.toRadians(dec));
vICRS.scale(distance*GaiaParam.Nature.PARSEC_METER);
// Compute the list of all the transits of Sirius in the FOV1
// For the inverse scanning law, we need to give the half aperture of the field
double halfAperture = GaiaParam.Satellite.FOV_AC*GaiaParam.Nature.DEGREE_RADIAN/2;