In view of the fact that most of persons of Chunagon (vice-councilor of state) and above at that time were Michinaga's relatives or his collaborators, Asatsune's appointment to Gon Chunagon (1023) and his promotion to Shosanmi (Senior Third Rank) indicates that he was Kugyo who belonged to Michinaga group.
治安(元号)3年（1023年）の権中納言任官や正三位への昇叙なども、当時中納言以上はほとんどが道長の縁者か、道長政権の協力者であったことから、道長派の公卿としての処遇と考えられる。