Notes. Hobson family membership as of July 2021. The first column lists the asteroid number (if numbered) and identification. The next six columns provide the asteroid proper elements (a_P, e_P, sinI_P) and their formal uncertainty (δa_P, δe_P, δsinI_P) determined by the methods described in Appendix A. The last column gives the absolute magnitude H from MPC database. Being a byproduct of orbit determination procedure from observations of sky surveys, the listed H values might be uncertain. The exception are the largest two members, 18777 and 57738, whose values were determined using well-calibrated photometric observation by Pravec et al. (2018). As a result, their uncertainty is only 0.05 magnitude. Asteroids whose data are listed in roman font are multi-opposition, while the last five listed in italic font are single-opposition. In the latter case, the uncertainty of the proper elements is only formal because the uncertainty of the osculating elements may currently be larger.