| E | Mag | O (JD) | O (dat) | C (JD) | C (Dat) | O-C | Source |
| -64 | 2413892 | 1896-11-28 | 2413830 | 1896-09-27 | 62 | AAVSO | |
| -63 | 8.8 | 2414372 | 1898-03-23 | 2414316 | 1898-01-26 | 56 | SVO |
| -62 | 7.7 | 2414842 | 1899-07-06 | 2414802 | 1899-05-27 | 40 | SVO |
| -61 | 2415358 | 1900-12-04 | 2415288 | 1900-09-25 | 70 | AAVSO | |
| -60 | 7.7 | 2415832 | 1902-03-23 | 2415774 | 1902-01-24 | 58 | AAVSO |
| -59 | 2416306 | 1903-07-10 | 2416260 | 1903-05-25 | 46 | AAVSO | |
| -58 | 7.7 | 2416773 | 1904-10-19 | 2416746 | 1904-09-22 | 27 | SVO |
| -57 | 8.6 | 2417231 | 1906-01-20 | 2417232 | 1906-01-21 | -1 | SVO |
| -56 | 7.8 | 2417745 | 1907-06-18 | 2417718 | 1907-05-22 | 27 | AAVSO |
| -55 | 7.8 | 2418184 | 1908-08-30 | 2418203 | 1908-09-18 | -19 | AAVSO |
| -54 | 2418680 | 1910-01-08 | 2418689 | 1910-01-17 | -9 | AAVSO | |
| -53 | 8.0 | 2419169 | 1911-05-12 | 2419175 | 1911-05-18 | -6 | AAVSO |
| -52 | 8.9 | 2419647 | 1912-09-01 | 2419661 | 1912-09-15 | -14 | AAVSO |
| -51 | 7.6 | 2420104 | 1913-12-02 | 2420147 | 1914-01-14 | -43 | SVO |
| -50 | 8.0 | 2420590 | 1915-04-02 | 2420633 | 1915-05-15 | -43 | AAVSO |
| -49 | 7.4 | 2421072 | 1916-07-27 | 2421119 | 1916-09-12 | -47 | SVO |
| -48 | 9.3 | 2421562 | 1917-11-29 | 2421605 | 1918-01-11 | -43 | SVO |
| -47 | 8.5 | 2422041 | 1919-03-23 | 2422091 | 1919-05-12 | -50 | SVO |
| -46 | 8.5 | 2422531 | 1920-07-25 | 2422577 | 1920-09-09 | -46 | SVO |
| -45 | 8.3 | 2423020 | 1921-11-26 | 2423063 | 1922-01-08 | -43 | SVO |
| -44 | 7.4 | 2423495 | 1923-03-16 | 2423549 | 1923-05-09 | -54 | SVO |
| -43 | 9.4 | 2423980 | 1924-07-13 | 2424035 | 1924-09-06 | -55 | SVO |
| -42 | 8.4 | 2424482 | 1925-11-27 | 2424521 | 1926-01-05 | -39 | SVO |
| -41 | 8.9 | 2424972 | 1927-04-01 | 2425007 | 1927-05-06 | -35 | SVO |
| -40 | 8.1 | 2425473 | 1928-08-14 | 2425493 | 1928-09-03 | -20 | SVO |
| -39 | 9.3 | 2425965 | 1929-12-19 | 2425979 | 1930-01-02 | -14 | SVO |
| -38 | 7.8 | 2426448 | 1931-04-16 | 2426465 | 1931-05-03 | -17 | SVO |
| -37 | 8.7 | 2426953 | 1932-09-02 | 2426951 | 1932-08-31 | 2 | SVO |
| -36 | 7.4 | 2427443 | 1934-01-05 | 2427437 | 1933-12-30 | 6 | SVO |
| -35 | 9.5 | 2427942 | 1935-05-19 | 2427923 | 1935-04-30 | 19 | SVO |
| -34 | 8.3 | 2428425 | 1936-09-13 | 2428409 | 1936-08-28 | 16 | SVO |
| -33 | 8.5 | 2428917 | 1938-01-18 | 2428895 | 1937-12-27 | 22 | SVO |
| -32 | 7.8 | 2429405 | 1939-05-21 | 2429381 | 1939-04-27 | 24 | SVO |
| -31 | 9.0 | 2429885 | 1940-09-12 | 2429867 | 1940-08-25 | 18 | SVO |
| -30 | 8.5 | 2430371 | 1942-01-11 | 2430353 | 1941-12-24 | 18 | SVO |
| -29 | 7.7 | 2430844 | 1943-04-29 | 2430839 | 1943-04-24 | 5 | SVO |
| -28 | 8.8 | 2431322 | 1944-08-19 | 2431325 | 1944-08-22 | -3 | SVO |
| -27 | 8.1 | 2431807 | 1945-12-17 | 2431811 | 1945-12-21 | -4 | SVO |
| -26 | 8.2 | 2432298 | 1947-04-22 | 2432297 | 1947-04-21 | 1 | AAVSO |
| -25 | 7.9 | 2432767 | 1948-08-03 | 2432783 | 1948-08-19 | -16 | SVO |
| -24 | 8.4 | 2433254 | 1949-12-03 | 2433268 | 1949-12-17 | -14 | SVO |
| -23 | 7.9 | 2433736 | 1951-03-30 | 2433754 | 1951-04-17 | -18 | SVO |
| -22 | 8.4 | 2434224 | 1952-07-30 | 2434240 | 1952-08-15 | -16 | SVO |
| -21 | 7.9 | 2434719 | 1953-12-07 | 2434726 | 1953-12-14 | -7 | SVO |
| -20 | 7.9 | 2435203 | 1955-04-05 | 2435212 | 1955-04-14 | -9 | SVO |
| -19 | 8.4 | 2435694 | 1956-08-08 | 2435698 | 1956-08-12 | -4 | SVO |
| -18 | 8.1 | 2436183 | 1957-12-10 | 2436184 | 1957-12-11 | -1 | SVO |
| -17 | 8.3 | 2436666 | 1959-04-07 | 2436670 | 1959-04-11 | -4 | SVO |
| -16 | 7.2 | 2437147 | 1960-07-31 | 2437156 | 1960-08-09 | -9 | SVO |
| -15 | 8.7 | 2437648 | 1961-12-14 | 2437642 | 1961-12-08 | 6 | SVO |
| -14 | 8.5 | 2438139 | 1963-04-19 | 2438128 | 1963-04-08 | 11 | SVO |
| -13 | 7.7 | 2438634 | 1964-08-26 | 2438614 | 1964-08-06 | 20 | SVO |
| -12 | 8.2 | 2439125 | 1965-12-30 | 2439100 | 1965-12-05 | 25 | SVO |
| -11 | 8.1 | 2439613 | 1967-05-02 | 2439586 | 1967-04-05 | 27 | SVO |
| -10 | 7.6 | 2440105 | 1968-09-05 | 2440072 | 1968-08-03 | 33 | SVO |
| -9 | 8.4 | 2440582 | 1969-12-26 | 2440558 | 1969-12-02 | 24 | SVO |
| -8 | 7.6 | 2441066 | 1971-04-24 | 2441044 | 1971-04-02 | 22 | SVO |
| -7 | 8.4 | 2441543 | 1972-08-13 | 2441530 | 1972-07-31 | 13 | SVO |
| -6 | 7.9 | 2442029 | 1973-12-12 | 2442016 | 1973-11-29 | 13 | SVO |
| -5 | 7.9 | 2442502 | 1975-03-30 | 2442502 | 1975-03-30 | 0 | SVO |
| -4 | 7.6 | 2442987 | 1976-07-27 | 2442988 | 1976-07-28 | -1 | SVO |
| -3 | 7.5 | 2443448 | 1977-10-31 | 2443474 | 1977-11-26 | -26 | SVO |
| -2 | 7.4 | 2443936 | 1979-03-03 | 2443960 | 1979-03-27 | -24 | SVO |
| -1 | 7.6 | 2444413 | 1980-06-22 | 2444446 | 1980-07-25 | -33 | SVO |
| 0 | 7.5 | 2444901 | 1981-10-23 | 2444932 | 1981-11-23 | -31 | SVO |
| 1 | 7.9 | 2445381 | 1983-02-15 | 2445418 | 1983-03-24 | -37 | SVO |
| 2 | 7.9 | 2445868 | 1984-06-16 | 2445904 | 1984-07-22 | -36 | SVO |
| 3 | 8.4 | 2446348 | 1985-10-09 | 2446390 | 1985-11-20 | -42 | SVO |
| 4 | 7.6 | 2446831 | 1987-02-04 | 2446876 | 1987-03-21 | -45 | SVO |
| 5 | 8.9 | 2447332 | 1988-06-19 | 2447362 | 1988-07-19 | -30 | SVO |
| 6 | 7.8 | 2447826 | 1989-10-26 | 2447848 | 1989-11-17 | -22 | SVO |
| 7 | 8.0 | 2448320 | 1991-03-04 | 2448333 | 1991-03-17 | -13 | SVO |
| 8 | 7.9 | 2448819 | 1992-07-15 | 2448819 | 1992-07-15 | 0 | SVO |
| 9 | 7.4 | 2449317 | 1993-11-25 | 2449305 | 1993-11-13 | 12 | SVO |
| 10 | 8.0 | 2449818 | 1995-04-10 | 2449791 | 1995-03-14 | 27 | SVO |
| 11 | 7.5 | 2450313 | 1996-08-17 | 2450277 | 1996-07-12 | 36 | SVO |
| 12 | 8.0 | 2450807 | 1997-12-24 | 2450763 | 1997-11-10 | 44 | SVO |
| 13 | 7.5 | 2451305 | 1999-05-06 | 2451249 | 1999-03-11 | 56 | SVO |
| 14 | 8.0 | 2451790 | 2000-09-02 | 2451735 | 2000-07-09 | 55 | SVO |
| 15 | 7.7 | 2452282 | 2002-01-07 | 2452221 | 2001-11-07 | 61 | SVO |
| 16 | 8.4 | 2452773 | 2003-05-13 | 2452707 | 2003-03-08 | 66 | SVO |
| 17 | 7.6 | 2453262 | 2004-09-13 | 2453193 | 2004-07-06 | 69 | SVO |
| 18 | 8.4 | 2453741 | 2006-01-05 | 2453679 | 2005-11-04 | 62 | SVO |
| 19 | 7.3 | 2454223 | 2007-05-02 | 2454165 | 2007-03-05 | 58 | SVO |
| 20 | 8.3 | 2454700 | 2008-08-21 | 2454651 | 2008-07-03 | 49 | SVO |
| 21 | 8.0 | 2455187 | 2009-12-21 | 2455137 | 2009-11-01 | 50 | SVO |
| 22 | 8.5 | 2455663 | 2011-04-11 | 2455623 | 2011-03-02 | 40 | SVO |
| 23 | 7.6 | 2456124 | 2012-07-15 | 2456109 | 2012-06-30 | 15 | SVO |
| 24 | 8.8 | 2456602 | 2013-11-05 | 2456595 | 2013-10-29 | 7 | SVO |
| 25 | 7.7 | 2457056 | 2015-02-02 | 2457081 | 2015-02-27 | -25 | SVO |
| 26 | 8.6 | 2457543 | 2016-06-03 | 2457567 | 2016-06-27 | -24 | SVO |
| 27 | 7.6 | 2458016 | 2017-09-19 | 2458053 | 2017-10-26 | -37 | SVO |
| 28 | 8.2 | 2458490 | 2019-01-06 | 2458539 | 2019-02-24 | -49 | SVO |
| 29 | 7.7 | 2458978 | 2020-05-08 | 2459025 | 2020-06-24 | -47 | SVO |
| 30 | 8.4 | 2459448 | 2021-08-21 | 2459511 | 2021-10-23 | -63 | SVO |
| 31 | 7.9 | 2459935 | 2022-12-21 | 2459997 | 2023-02-21 | -62 | SVO |
| 32 | 8.9 | 2460413 | 2024-04-12 | 2460483 | 2024-06-21 | -70 | 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. |