| E | Mag | O (JD) | O (dat) | C (JD) | C (Dat) | O-C | Source |
| -69 | 2414930 | 1899-10-02 | 2414894 | 1899-08-27 | 36 | SVO | |
| -68 | 2415260 | 1900-08-28 | 2415241 | 1900-08-09 | 19 | SVO | |
| -67 | 2415620 | 1901-08-23 | 2415589 | 1901-07-23 | 31 | AnHar, 1909, vol 55, p 95 | |
| -66 | 2415945 | 1902-07-14 | 2415937 | 1902-07-06 | 8 | SVO | |
| -65 | 2416302 | 1903-07-06 | 2416285 | 1903-06-19 | 17 | SVO | |
| -64 | 2416641 | 1904-06-09 | 2416633 | 1904-06-01 | 8 | SVO | |
| -63 | 2416989 | 1905-05-23 | 2416981 | 1905-05-15 | 8 | SVO | |
| -51 | 2421180 | 1916-11-12 | 2421155 | 1916-10-18 | 25 | SVO | |
| -49 | 9.6 | 2421864 | 1918-09-27 | 2421851 | 1918-09-14 | 13 | SVO |
| -47 | 2422550 | 1920-08-13 | 2422547 | 1920-08-10 | 3 | SVO | |
| -46 | 9.8 | 2422890 | 1921-07-19 | 2422895 | 1921-07-24 | -5 | SVO |
| -45 | 9.4 | 2423253 | 1922-07-17 | 2423243 | 1922-07-07 | 10 | SVO |
| -44 | 2423602 | 1923-07-01 | 2423591 | 1923-06-20 | 11 | AAVSO | |
| -43 | 2423937 | 1924-05-31 | 2423939 | 1924-06-02 | -2 | AAVSO | |
| -42 | 2424290 | 1925-05-19 | 2424286 | 1925-05-15 | 4 | SVO | |
| -41 | 2424640 | 1926-05-04 | 2424634 | 1926-04-28 | 6 | SVO | |
| -39 | 9.8 | 2425326 | 1928-03-20 | 2425330 | 1928-03-24 | -4 | AAVSO |
| -38 | 2425673 | 1929-03-02 | 2425678 | 1929-03-07 | -5 | AAVSO | |
| -37 | 2426027 | 1930-02-19 | 2426026 | 1930-02-18 | 1 | AAVSO | |
| -36 | 2426382 | 1931-02-09 | 2426374 | 1931-02-01 | 8 | AAVSO | |
| -35 | 2426726 | 1932-01-19 | 2426722 | 1932-01-15 | 4 | AAVSO | |
| -34 | 2427078 | 1933-01-05 | 2427070 | 1932-12-28 | 8 | AAVSO | |
| -33 | 10.4 | 2427419 | 1933-12-12 | 2427417 | 1933-12-10 | 2 | SVO |
| -32 | 9.7 | 2427772 | 1934-11-30 | 2427765 | 1934-11-23 | 7 | SVO |
| -30 | 2428460 | 1936-10-18 | 2428461 | 1936-10-19 | -1 | AAVSO | |
| -29 | 10.0 | 2428800 | 1937-09-23 | 2428809 | 1937-10-02 | -9 | AAVSO |
| -28 | 9.6 | 2429167 | 1938-09-25 | 2429157 | 1938-09-15 | 10 | AAVSO |
| -27 | 2429527 | 1939-09-20 | 2429505 | 1939-08-29 | 22 | AAVSO | |
| -26 | 9.7 | 2429878 | 1940-09-05 | 2429853 | 1940-08-11 | 25 | AAVSO |
| -25 | 10.5 | 2430227 | 1941-08-20 | 2430201 | 1941-07-25 | 26 | AAVSO |
| -24 | 2430574 | 1942-08-02 | 2430548 | 1942-07-07 | 26 | AAVSO | |
| -23 | 2430910 | 1943-07-04 | 2430896 | 1943-06-20 | 14 | AAVSO | |
| -22 | 9.7 | 2431247 | 1944-06-05 | 2431244 | 1944-06-02 | 3 | AAVSO |
| -21 | 2431594 | 1945-05-18 | 2431592 | 1945-05-16 | 2 | AAVSO | |
| -20 | 2431939 | 1946-04-28 | 2431940 | 1946-04-29 | -1 | AAVSO | |
| -19 | 2432284 | 1947-04-08 | 2432288 | 1947-04-12 | -4 | AAVSO | |
| -18 | 2432627 | 1948-03-16 | 2432636 | 1948-03-25 | -9 | AAVSO | |
| -17 | 2432967 | 1949-02-19 | 2432984 | 1949-03-08 | -17 | AAVSO | |
| -16 | 2433314 | 1950-02-01 | 2433331 | 1950-02-18 | -17 | AAVSO | |
| -15 | 10.0 | 2433658 | 1951-01-11 | 2433679 | 1951-02-01 | -21 | AAVSO |
| -14 | 10.0 | 2434006 | 1951-12-25 | 2434027 | 1952-01-15 | -21 | AAVSO |
| -13 | 10.2 | 2434361 | 1952-12-14 | 2434375 | 1952-12-28 | -14 | AAVSO |
| -12 | 9.8 | 2434709 | 1953-11-27 | 2434723 | 1953-12-11 | -14 | AAVSO |
| -11 | 9.4 | 2435042 | 1954-10-26 | 2435071 | 1954-11-24 | -29 | SVO |
| -10 | 9.8 | 2435408 | 1955-10-27 | 2435419 | 1955-11-07 | -11 | SVO |
| -9 | 9.7 | 2435757 | 1956-10-10 | 2435767 | 1956-10-20 | -10 | SVO |
| -8 | 10.6 | 2436098 | 1957-09-16 | 2436115 | 1957-10-03 | -17 | SVO |
| -7 | 9.3 | 2436459 | 1958-09-12 | 2436462 | 1958-09-15 | -3 | SVO |
| -6 | 10.4 | 2436797 | 1959-08-16 | 2436810 | 1959-08-29 | -13 | SVO |
| -5 | 10.4 | 2437147 | 1960-07-31 | 2437158 | 1960-08-11 | -11 | SVO |
| -4 | 10.6 | 2437495 | 1961-07-14 | 2437506 | 1961-07-25 | -11 | SVO |
| -3 | 9.7 | 2437844 | 1962-06-28 | 2437854 | 1962-07-08 | -10 | SVO |
| -2 | 9.6 | 2438180 | 1963-05-30 | 2438202 | 1963-06-21 | -22 | SVO |
| -1 | 9.4 | 2438534 | 1964-05-18 | 2438550 | 1964-06-03 | -16 | SVO |
| 0 | 10.0 | 2438885 | 1965-05-04 | 2438898 | 1965-05-17 | -13 | AAVSO |
| 1 | 10.7 | 2439233 | 1966-04-17 | 2439246 | 1966-04-30 | -13 | AAVSO |
| 2 | 2439580 | 1967-03-30 | 2439593 | 1967-04-12 | -13 | AAVSO | |
| 3 | 11.5 | 2439927 | 1968-03-11 | 2439941 | 1968-03-25 | -14 | AAVSO |
| 4 | 10.1 | 2440273 | 1969-02-20 | 2440289 | 1969-03-08 | -16 | AAVSO |
| 5 | 2440620 | 1970-02-02 | 2440637 | 1970-02-19 | -17 | AAVSO | |
| 6 | 2440967 | 1971-01-15 | 2440985 | 1971-02-02 | -18 | AAVSO | |
| 7 | 2441314 | 1971-12-28 | 2441333 | 1972-01-16 | -19 | AAVSO | |
| 8 | 2441661 | 1972-12-09 | 2441681 | 1972-12-29 | -20 | AAVSO | |
| 9 | 10.7 | 2442008 | 1973-11-21 | 2442029 | 1973-12-12 | -21 | AAVSO |
| 10 | 9.8 | 2442351 | 1974-10-30 | 2442377 | 1974-11-25 | -26 | AAVSO |
| 11 | 11.8 | 2442709 | 1975-10-23 | 2442724 | 1975-11-07 | -15 | AAVSO |
| 12 | 11.3 | 2443056 | 1976-10-04 | 2443072 | 1976-10-20 | -16 | AAVSO |
| 13 | 11.2 | 2443405 | 1977-09-18 | 2443420 | 1977-10-03 | -15 | AAVSO |
| 14 | 11.0 | 2443749 | 1978-08-28 | 2443768 | 1978-09-16 | -19 | AAVSO |
| 15 | 10.4 | 2444096 | 1979-08-10 | 2444116 | 1979-08-30 | -20 | SVO |
| 16 | 11.1 | 2444442 | 1980-07-21 | 2444464 | 1980-08-12 | -22 | AAVSO |
| 17 | 9.7 | 2444788 | 1981-07-02 | 2444812 | 1981-07-26 | -24 | AAVSO |
| 18 | 10.6 | 2445133 | 1982-06-12 | 2445160 | 1982-07-09 | -27 | AAVSO |
| 19 | 10.8 | 2445481 | 1983-05-26 | 2445507 | 1983-06-21 | -26 | AAVSO |
| 20 | 11.1 | 2445837 | 1984-05-16 | 2445855 | 1984-06-03 | -18 | AAVSO |
| 21 | 10.4 | 2446183 | 1985-04-27 | 2446203 | 1985-05-17 | -20 | AAVSO |
| 22 | 10.3 | 2446551 | 1986-04-30 | 2446551 | 1986-04-30 | 0 | AAVSO |
| 23 | 10.3 | 2446902 | 1987-04-16 | 2446899 | 1987-04-13 | 3 | AAVSO |
| 24 | 2447263 | 1988-04-11 | 2447247 | 1988-03-26 | 16 | AAVSO | |
| 25 | 2447610 | 1989-03-24 | 2447595 | 1989-03-09 | 15 | AAVSO | |
| 26 | 2447959 | 1990-03-08 | 2447943 | 1990-02-20 | 16 | AAVSO | |
| 27 | 2448305 | 1991-02-17 | 2448291 | 1991-02-03 | 14 | AAVSO | |
| 28 | 2448657 | 1992-02-04 | 2448638 | 1992-01-16 | 19 | AAVSO | |
| 29 | 2448988 | 1992-12-31 | 2448986 | 1992-12-29 | 2 | AAVSO | |
| 30 | 2449331 | 1993-12-09 | 2449334 | 1993-12-12 | -3 | AAVSO | |
| 31 | 2449673 | 1994-11-16 | 2449682 | 1994-11-25 | -9 | AAVSO | |
| 32 | 2450006 | 1995-10-15 | 2450030 | 1995-11-08 | -24 | AAVSO | |
| 33 | 9.8 | 2450365 | 1996-10-08 | 2450378 | 1996-10-21 | -13 | SVO |
| 34 | 2450711 | 1997-09-19 | 2450726 | 1997-10-04 | -15 | AAVSO | |
| 35 | 2451063 | 1998-09-06 | 2451074 | 1998-09-17 | -11 | AAVSO | |
| 36 | 10.1 | 2451416 | 1999-08-25 | 2451422 | 1999-08-31 | -6 | SVO |
| 37 | 10.3 | 2451767 | 2000-08-10 | 2451769 | 2000-08-12 | -2 | SVO |
| 38 | 9.6 | 2452133 | 2001-08-11 | 2452117 | 2001-07-26 | 16 | SVO |
| 39 | 2452477 | 2002-07-21 | 2452465 | 2002-07-09 | 12 | AAVSO | |
| 40 | 10.0 | 2452828 | 2003-07-07 | 2452813 | 2003-06-22 | 15 | SVO |
| 41 | 10.0 | 2453170 | 2004-06-13 | 2453161 | 2004-06-04 | 9 | SVO |
| 42 | 10.0 | 2453507 | 2005-05-16 | 2453509 | 2005-05-18 | -2 | SVO |
| 43 | 9.5 | 2453856 | 2006-04-30 | 2453857 | 2006-05-01 | -1 | SVO |
| 44 | 2454221 | 2007-04-30 | 2454205 | 2007-04-14 | 16 | AAVSO | |
| 45 | 10.5 | 2454566 | 2008-04-09 | 2454553 | 2008-03-27 | 13 | AAVSO |
| 46 | 9.7 | 2454918 | 2009-03-27 | 2454900 | 2009-03-09 | 18 | AAVSO |
| 47 | 10.6 | 2455267 | 2010-03-11 | 2455248 | 2010-02-20 | 19 | AAVSO |
| 48 | 2455614 | 2011-02-21 | 2455596 | 2011-02-03 | 18 | AAVSO | |
| 49 | 2455952 | 2012-01-25 | 2455944 | 2012-01-17 | 8 | AAVSO | |
| 50 | 2456310 | 2013-01-17 | 2456292 | 2012-12-30 | 18 | AAVSO | |
| 51 | 2456659 | 2014-01-01 | 2456640 | 2013-12-13 | 19 | AAVSO | |
| 52 | 10.5 | 2457011 | 2014-12-19 | 2456988 | 2014-11-26 | 23 | SVO |
| 53 | 10.5 | 2457346 | 2015-11-19 | 2457336 | 2015-11-09 | 10 | SVO |
| 54 | 10.7 | 2457705 | 2016-11-12 | 2457684 | 2016-10-22 | 21 | SVO |
| 55 | 11.1 | 2458050 | 2017-10-23 | 2458031 | 2017-10-04 | 19 | SVO |
| 56 | 9.7 | 2458404 | 2018-10-12 | 2458379 | 2018-09-17 | 25 | SVO |
| 57 | 10.8 | 2458744 | 2019-09-17 | 2458727 | 2019-08-31 | 17 | SVO |
| 58 | 10.1 | 2459089 | 2020-08-27 | 2459075 | 2020-08-13 | 14 | SVO |
| 59 | 11.0 | 2459441 | 2021-08-14 | 2459423 | 2021-07-27 | 18 | SVO |
| 60 | 10.7 | 2459796 | 2022-08-04 | 2459771 | 2022-07-10 | 25 | SVO |
| E | Cycle number from the GCVS4 epoch. |
| Mag | Magnitude at maximum. |
| O (JD) | Julian date at observed time for maximum. |
| O (Dat) | Same as above, expressed as date. |
| C (JD) | Julian date at calculated time for maximum with elements from GCVS4. |
| C (Dat) | Same as above, expressed as date. |
| O-C | O (JD) minus C (JD). |
| Sorce | Datasource for the maxima. |