Since that time the comet has been seen at every apparition, in 1978 (1978 II, 1977i), 1983 (1983 XI, 1982j), 1989 (1989 I, 1987e1), 1994 (1994 XIUX, 1993c), 2000 and 2005.
11. januarja 1972 sta Elizabeth Roemer in L. M. Vaughn ponovno odkrila komet na Observatoriju Steward (9P/1972 A1, 1972 V, 1972a).