2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/204141We present a methodology based on point-like Lambertian sources that enables one to perform a reliable and comprehensive estimate of the overall thermally induced acceleration of the Pioneer 10 and 11 spacecraft. We show, by developing a sensitivity analysis of the several parameters of the model, that one may achieve a valuable insight on the possible thermal origin of the so-called Pioneer anomaly.12 pages, 8 figures, 5 tablesSpace PhysicsAstrophysicsGeneral Relativity and Quantum Cosmologytext