Total light deflection in the gravitational field of an axisymmetric body at rest with full mass and spin multipole structure

The tangent vector of the light trajectory at future infinity and angle total deflection in gravitational field an isolated axisymmetric body rest with full set mass multipoles spin is determined harmonic coordinates 1PN 1.5PN approximation post-Newtonian (PN) scheme. It found that evaluation caused by leads directly a compelling way to Chebyshev polynomials first second kind, respectively. This fact allows one determine upper limits deflection, which are strictly valid approximation. They represent criterion identify those contribute significantly for given astrometric accuracy. These used Sun giant planets Solar System. few $l\ensuremath{\le}10$ $l\ensuremath{\le}3$ sufficient accuracy on nanoarcsecond level angular measurements.