Meanwhile, Yoshihira is known to have been appointed as onmyo hakase (Doctor of onmyo) in 991; he was granted Jushiinoge (Junior Fourth Rank, Lower Grade) after serving as onmyo no suke (Assistant Director of Onmyoryo, or Bureau of Divination) and received an imperial decree of tenmon misso in 1019 following the death of Yoshimasa, who was the then tenmon hakase.
また吉平も正暦2年（991年）に陰陽博士に任じられていたことが知られ、陰陽助などを経た後に従四位下に叙され、寛仁3年（1019年）に天文博士であった吉昌死去を受けて天文密奏の宣旨を受ける。