| E | Mag | O (JD) | O (dat) | C (JD) | C (Dat) | O-C | Source |
| -64 | 2413892 | 1896-11-28 | 2413870 | 1896-11-06 | 22 | AAVSO | |
| -63 | 8.8 | 2414372 | 1898-03-23 | 2414355 | 1898-03-06 | 17 | SVO |
| -62 | 7.7 | 2414842 | 1899-07-06 | 2414840 | 1899-07-04 | 2 | SVO |
| -61 | 2415358 | 1900-12-04 | 2415324 | 1900-10-31 | 34 | AAVSO | |
| -60 | 7.7 | 2415832 | 1902-03-23 | 2415809 | 1902-02-28 | 23 | AAVSO |
| -59 | 2416306 | 1903-07-10 | 2416294 | 1903-06-28 | 12 | AAVSO | |
| -58 | 7.7 | 2416773 | 1904-10-19 | 2416779 | 1904-10-25 | -6 | SVO |
| -57 | 8.6 | 2417231 | 1906-01-20 | 2417264 | 1906-02-22 | -33 | SVO |
| -56 | 7.8 | 2417745 | 1907-06-18 | 2417749 | 1907-06-22 | -4 | AAVSO |
| -55 | 7.8 | 2418184 | 1908-08-30 | 2418233 | 1908-10-18 | -49 | AAVSO |
| -54 | 2418680 | 1910-01-08 | 2418718 | 1910-02-15 | -38 | AAVSO | |
| -53 | 8.0 | 2419169 | 1911-05-12 | 2419203 | 1911-06-15 | -34 | AAVSO |
| -52 | 8.9 | 2419647 | 1912-09-01 | 2419688 | 1912-10-12 | -41 | AAVSO |
| -51 | 7.6 | 2420104 | 1913-12-02 | 2420173 | 1914-02-09 | -69 | SVO |
| -50 | 8.0 | 2420590 | 1915-04-02 | 2420658 | 1915-06-09 | -68 | AAVSO |
| -49 | 7.4 | 2421072 | 1916-07-27 | 2421142 | 1916-10-05 | -70 | SVO |
| -48 | 9.3 | 2421562 | 1917-11-29 | 2421627 | 1918-02-02 | -65 | SVO |
| -47 | 8.5 | 2422041 | 1919-03-23 | 2422112 | 1919-06-02 | -71 | SVO |
| -46 | 8.5 | 2422531 | 1920-07-25 | 2422597 | 1920-09-29 | -66 | SVO |
| -45 | 8.3 | 2423020 | 1921-11-26 | 2423082 | 1922-01-27 | -62 | SVO |
| -44 | 7.4 | 2423495 | 1923-03-16 | 2423566 | 1923-05-26 | -71 | SVO |
| -43 | 9.4 | 2423980 | 1924-07-13 | 2424051 | 1924-09-22 | -71 | SVO |
| -42 | 8.4 | 2424482 | 1925-11-27 | 2424536 | 1926-01-20 | -54 | SVO |
| -41 | 8.9 | 2424972 | 1927-04-01 | 2425021 | 1927-05-20 | -49 | SVO |
| -40 | 8.1 | 2425473 | 1928-08-14 | 2425506 | 1928-09-16 | -33 | SVO |
| -39 | 9.3 | 2425965 | 1929-12-19 | 2425991 | 1930-01-14 | -26 | SVO |
| -38 | 7.8 | 2426448 | 1931-04-16 | 2426475 | 1931-05-13 | -27 | SVO |
| -37 | 8.7 | 2426953 | 1932-09-02 | 2426960 | 1932-09-09 | -7 | SVO |
| -36 | 7.4 | 2427443 | 1934-01-05 | 2427445 | 1934-01-07 | -2 | SVO |
| -35 | 9.5 | 2427942 | 1935-05-19 | 2427930 | 1935-05-07 | 12 | SVO |
| -34 | 8.3 | 2428425 | 1936-09-13 | 2428415 | 1936-09-03 | 10 | SVO |
| -33 | 8.5 | 2428917 | 1938-01-18 | 2428900 | 1938-01-01 | 17 | SVO |
| -32 | 7.8 | 2429405 | 1939-05-21 | 2429384 | 1939-04-30 | 21 | SVO |
| -31 | 9.0 | 2429885 | 1940-09-12 | 2429869 | 1940-08-27 | 16 | SVO |
| -30 | 8.5 | 2430371 | 1942-01-11 | 2430354 | 1941-12-25 | 17 | SVO |
| -29 | 7.7 | 2430844 | 1943-04-29 | 2430839 | 1943-04-24 | 5 | SVO |
| -28 | 8.8 | 2431322 | 1944-08-19 | 2431324 | 1944-08-21 | -2 | SVO |
| -27 | 8.1 | 2431807 | 1945-12-17 | 2431809 | 1945-12-19 | -2 | SVO |
| -26 | 8.2 | 2432298 | 1947-04-22 | 2432293 | 1947-04-17 | 5 | AAVSO |
| -25 | 7.9 | 2432767 | 1948-08-03 | 2432778 | 1948-08-14 | -11 | SVO |
| -24 | 8.4 | 2433254 | 1949-12-03 | 2433263 | 1949-12-12 | -9 | SVO |
| -23 | 7.9 | 2433736 | 1951-03-30 | 2433748 | 1951-04-11 | -12 | SVO |
| -22 | 8.4 | 2434224 | 1952-07-30 | 2434233 | 1952-08-08 | -9 | SVO |
| -21 | 7.9 | 2434719 | 1953-12-07 | 2434718 | 1953-12-06 | 1 | SVO |
| -20 | 7.9 | 2435203 | 1955-04-05 | 2435202 | 1955-04-04 | 1 | SVO |
| -19 | 8.4 | 2435694 | 1956-08-08 | 2435687 | 1956-08-01 | 7 | SVO |
| -18 | 8.1 | 2436183 | 1957-12-10 | 2436172 | 1957-11-29 | 11 | SVO |
| -17 | 8.3 | 2436666 | 1959-04-07 | 2436657 | 1959-03-29 | 9 | SVO |
| -16 | 7.2 | 2437147 | 1960-07-31 | 2437142 | 1960-07-26 | 5 | SVO |
| -15 | 8.7 | 2437648 | 1961-12-14 | 2437627 | 1961-11-23 | 21 | SVO |
| -14 | 8.5 | 2438139 | 1963-04-19 | 2438111 | 1963-03-22 | 28 | SVO |
| -13 | 7.7 | 2438634 | 1964-08-26 | 2438596 | 1964-07-19 | 38 | SVO |
| -12 | 8.2 | 2439125 | 1965-12-30 | 2439081 | 1965-11-16 | 44 | SVO |
| -11 | 8.1 | 2439613 | 1967-05-02 | 2439566 | 1967-03-16 | 47 | SVO |
| -10 | 7.6 | 2440105 | 1968-09-05 | 2440051 | 1968-07-13 | 54 | SVO |
| -9 | 8.4 | 2440582 | 1969-12-26 | 2440536 | 1969-11-10 | 46 | SVO |
| -8 | 7.6 | 2441066 | 1971-04-24 | 2441020 | 1971-03-09 | 46 | SVO |
| -7 | 8.4 | 2441543 | 1972-08-13 | 2441505 | 1972-07-06 | 38 | SVO |
| -6 | 7.9 | 2442029 | 1973-12-12 | 2441990 | 1973-11-03 | 39 | SVO |
| -5 | 7.9 | 2442502 | 1975-03-30 | 2442475 | 1975-03-03 | 27 | SVO |
| -4 | 7.6 | 2442987 | 1976-07-27 | 2442960 | 1976-06-30 | 27 | SVO |
| -3 | 7.5 | 2443448 | 1977-10-31 | 2443445 | 1977-10-28 | 3 | SVO |
| -2 | 7.4 | 2443936 | 1979-03-03 | 2443929 | 1979-02-24 | 7 | SVO |
| -1 | 7.6 | 2444413 | 1980-06-22 | 2444414 | 1980-06-23 | -1 | SVO |
| 0 | 7.5 | 2444901 | 1981-10-23 | 2444899 | 1981-10-21 | 2 | SVO |
| 1 | 7.9 | 2445381 | 1983-02-15 | 2445384 | 1983-02-18 | -3 | SVO |
| 2 | 7.9 | 2445868 | 1984-06-16 | 2445869 | 1984-06-17 | -1 | SVO |
| 3 | 8.4 | 2446348 | 1985-10-09 | 2446353 | 1985-10-14 | -5 | SVO |
| 4 | 7.6 | 2446831 | 1987-02-04 | 2446838 | 1987-02-11 | -7 | SVO |
| 5 | 8.9 | 2447332 | 1988-06-19 | 2447323 | 1988-06-10 | 9 | SVO |
| 6 | 7.8 | 2447826 | 1989-10-26 | 2447808 | 1989-10-08 | 18 | SVO |
| 7 | 8.0 | 2448320 | 1991-03-04 | 2448293 | 1991-02-05 | 27 | SVO |
| 8 | 7.9 | 2448819 | 1992-07-15 | 2448778 | 1992-06-04 | 41 | SVO |
| 9 | 7.4 | 2449317 | 1993-11-25 | 2449262 | 1993-10-01 | 55 | SVO |
| 10 | 8.0 | 2449818 | 1995-04-10 | 2449747 | 1995-01-29 | 71 | SVO |
| 11 | 7.5 | 2450313 | 1996-08-17 | 2450232 | 1996-05-28 | 81 | SVO |
| 12 | 8.0 | 2450807 | 1997-12-24 | 2450717 | 1997-09-25 | 90 | SVO |
| 13 | 7.5 | 2451305 | 1999-05-06 | 2451202 | 1999-01-23 | 103 | SVO |
| 14 | 8.0 | 2451790 | 2000-09-02 | 2451687 | 2000-05-22 | 103 | SVO |
| 15 | 7.7 | 2452282 | 2002-01-07 | 2452171 | 2001-09-18 | 111 | SVO |
| 16 | 8.4 | 2452773 | 2003-05-13 | 2452656 | 2003-01-16 | 117 | SVO |
| 17 | 7.6 | 2453262 | 2004-09-13 | 2453141 | 2004-05-15 | 121 | SVO |
| 18 | 8.4 | 2453741 | 2006-01-05 | 2453626 | 2005-09-12 | 115 | SVO |
| 19 | 7.3 | 2454223 | 2007-05-02 | 2454111 | 2007-01-10 | 112 | SVO |
| 20 | 8.3 | 2454700 | 2008-08-21 | 2454596 | 2008-05-09 | 104 | SVO |
| 21 | 8.0 | 2455187 | 2009-12-21 | 2455080 | 2009-09-05 | 107 | SVO |
| 22 | 8.5 | 2455663 | 2011-04-11 | 2455565 | 2011-01-03 | 98 | SVO |
| 23 | 7.6 | 2456124 | 2012-07-15 | 2456050 | 2012-05-02 | 74 | SVO |
| 24 | 8.8 | 2456602 | 2013-11-05 | 2456535 | 2013-08-30 | 67 | SVO |
| 25 | 7.7 | 2457056 | 2015-02-02 | 2457020 | 2014-12-28 | 36 | SVO |
| 26 | 8.6 | 2457543 | 2016-06-03 | 2457505 | 2016-04-26 | 38 | SVO |
| 27 | 7.6 | 2458016 | 2017-09-19 | 2457989 | 2017-08-23 | 27 | SVO |
| 28 | 8.2 | 2458490 | 2019-01-06 | 2458474 | 2018-12-21 | 16 | SVO |
| 29 | 7.7 | 2458978 | 2020-05-08 | 2458959 | 2020-04-19 | 19 | SVO |
| 30 | 8.4 | 2459448 | 2021-08-21 | 2459444 | 2021-08-17 | 4 | SVO |
| 31 | 7.9 | 2459935 | 2022-12-21 | 2459929 | 2022-12-15 | 6 | 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. |