| Observatory | Plate No. | Bandpass | Date | JD (24...) | Magnitude |
| Sonneberg | A 247 | pg | 14.02.1939 | 29 303.33 | 17.0 |
| Palomar | 000416 | pg | 28.11.1951 | 33 958.89 | 20.4 |
| Palomar | 000416 | R | 28.11.1951 | 33 958.90 | 16.8 |
| Palomar | 000427 | pg | 16.12.1951 | 33 978.81 | 20.9 |
| Palomar | 000427 | R | 16.12.1951 | 33 978.82 | 17.8 |
| Heidelberg | B 7411 | pg | 23.01.1954 | 34 766.50 | >16.7 |
| Heidelberg | B 9044 | pg | 11.03.1961 | 37 370.50 | >16.7 |
| Heidelberg | B 9045 | pg | 11.03.1961 | 37 370.50 | >16.9 |
| Sonneberg | A 625 | pg | 18.01.1963 | 38 048.42 | >17.0 |
| Sonneberg | A 1589 | pg | 13.11.1966 | 39 443.44 | 16.8 |
| Sonneberg | A 1637 | pg | 14.02.1967 | 39 536.35 | 16.8 |
| Sonneberg | A 2500 | pg | 07.11.1967 | 39 801.59 | 17.0 |
| Sonneberg | A 2504 | pg | 08.11.1967 | 39 802.55 | 16.8 |
| Kiso | 000158 | R | 04.01.1976 | 42 781.94 | 14.4 |
| Kiso | 002569 | B | 18.01.1980 | 44 257.15 | 17.4 |
| Kiso | 002570 | B | 18.01.1980 | 44 257.19 | 17.3 |
| Palomar | 000335 | V | 16.12.1982 | 45 319.83 | 16.0 |
| Palomar | 000370 | V | 07.01.1983 | 45 341.78 | 15.9 |
| Kiso | 004298 | R | 24.01.1984 | 45 724.08 | 16.1 |
| Calar Alto | A 87 | R | 31.07.1985 | 46 278.35 | 15.1 |
| Calar Alto | A 107 | R | 10.10.1985 | 46 348.66 | 16.3 |
| Sonneberg | S 5934 | pg | 21.10.1985 | 46 359.50 | >17.3 |
| Sonneberg | S 5945 | pg | 22.10.1985 | 46 360.50 | >17.6 |
| Kiso | 004768 | B | 24.10.1985 | 46 363.28 | 19.0 |
| Sonneberg | S 5947 | pg | 25.10.1985 | 46 363.50 | >17.4 |
| Palomar | 000932 | B | 05.11.1986 | 46 739.92 | 16.4 |
| Palomar | 000999 | R | 27.12.1986 | 46 791.77 | 14.3 |
| Palomar | 001004 | I | 29.12.1986 | 46 793.75 | 13.3 |
| Kiso | 005322 | B | 22.01.1987 | 46 818.11 | 16.6 |