| E | Mag | O (JD) | O (dat) | C (JD) | C (Dat) | O-C | Source |
| -64 | 2415830 | 1902-03-21 | 2415814 | 1902-03-05 | 16 | SVO | |
| -63 | 2416224 | 1903-04-19 | 2416216 | 1903-04-11 | 8 | SVO | |
| -62 | 2416622 | 1904-05-21 | 2416618 | 1904-05-17 | 4 | SVO | |
| -61 | 2417023 | 1905-06-26 | 2417020 | 1905-06-23 | 3 | SVO | |
| -60 | 2417430 | 1906-08-07 | 2417422 | 1906-07-30 | 8 | SVO | |
| -52 | 2420620 | 1915-05-02 | 2420636 | 1915-05-18 | -16 | SVO | |
| -51 | 2421036 | 1916-06-21 | 2421038 | 1916-06-23 | -2 | SVO | |
| -50 | 2421430 | 1917-07-20 | 2421440 | 1917-07-30 | -10 | SVO | |
| -49 | 9.4 | 2421836 | 1918-08-30 | 2421842 | 1918-09-05 | -6 | SVO |
| -48 | 10.1 | 2422245 | 1919-10-13 | 2422244 | 1919-10-12 | 1 | SVO |
| -47 | 9.9 | 2422654 | 1920-11-25 | 2422646 | 1920-11-17 | 8 | SVO |
| -46 | 10.1 | 2423046 | 1921-12-22 | 2423047 | 1921-12-23 | -1 | AAVSO |
| -45 | 8.7 | 2423466 | 1923-02-15 | 2423449 | 1923-01-29 | 17 | SVO |
| -44 | 9.9 | 2423875 | 1924-03-30 | 2423851 | 1924-03-06 | 24 | SVO |
| -43 | 10.8 | 2424293 | 1925-05-22 | 2424253 | 1925-04-12 | 40 | SVO |
| -42 | 10.1 | 2424687 | 1926-06-20 | 2424655 | 1926-05-19 | 32 | AAVSO |
| -41 | 10.4 | 2425096 | 1927-08-03 | 2425057 | 1927-06-25 | 39 | SVO |
| -40 | 10.8 | 2425501 | 1928-09-11 | 2425458 | 1928-07-30 | 43 | SVO |
| -39 | 9.7 | 2425894 | 1929-10-09 | 2425860 | 1929-09-05 | 34 | SVO |
| -38 | 10.1 | 2426283 | 1930-11-02 | 2426262 | 1930-10-12 | 21 | SVO |
| -37 | 2426678 | 1931-12-02 | 2426664 | 1931-11-18 | 14 | AAVSO | |
| -36 | 10.0 | 2427080 | 1933-01-07 | 2427066 | 1932-12-24 | 14 | AAVSO |
| -35 | 9.5 | 2427475 | 1934-02-06 | 2427468 | 1934-01-30 | 7 | AAVSO |
| -34 | 9.7 | 2427869 | 1935-03-07 | 2427869 | 1935-03-07 | 0 | AAVSO |
| -33 | 9.9 | 2428266 | 1936-04-07 | 2428271 | 1936-04-12 | -5 | SVO |
| -32 | 9.9 | 2428657 | 1937-05-03 | 2428673 | 1937-05-19 | -16 | SVO |
| -31 | 10.3 | 2429054 | 1938-06-04 | 2429075 | 1938-06-25 | -21 | SVO |
| -30 | 9.4 | 2429446 | 1939-07-01 | 2429477 | 1939-08-01 | -31 | SVO |
| -29 | 11.0 | 2429848 | 1940-08-06 | 2429879 | 1940-09-06 | -31 | SVO |
| -28 | 9.8 | 2430233 | 1941-08-26 | 2430281 | 1941-10-13 | -48 | SVO |
| -27 | 10.3 | 2430645 | 1942-10-12 | 2430682 | 1942-11-18 | -37 | SVO |
| -26 | 10.6 | 2431047 | 1943-11-18 | 2431084 | 1943-12-25 | -37 | AAVSO |
| -25 | 10.2 | 2431456 | 1944-12-31 | 2431486 | 1945-01-30 | -30 | SVO |
| -24 | 9.7 | 2431866 | 1946-02-14 | 2431888 | 1946-03-08 | -22 | SVO |
| -23 | 9.5 | 2432275 | 1947-03-30 | 2432290 | 1947-04-14 | -15 | SVO |
| -22 | 10.6 | 2432681 | 1948-05-09 | 2432692 | 1948-05-20 | -11 | SVO |
| -21 | 9.7 | 2433080 | 1949-06-12 | 2433093 | 1949-06-25 | -13 | SVO |
| -20 | 10.7 | 2433496 | 1950-08-02 | 2433495 | 1950-08-01 | 1 | SVO |
| -19 | 10.7 | 2433900 | 1951-09-10 | 2433897 | 1951-09-07 | 3 | SVO |
| -18 | 9.8 | 2434309 | 1952-10-23 | 2434299 | 1952-10-13 | 10 | AAVSO |
| -17 | 9.7 | 2434716 | 1953-12-04 | 2434701 | 1953-11-19 | 15 | SVO |
| -16 | 10.3 | 2435086 | 1954-12-09 | 2435103 | 1954-12-26 | -17 | SVO |
| -15 | 10.8 | 2435524 | 1956-02-20 | 2435504 | 1956-01-31 | 20 | AAVSO |
| -14 | 10.1 | 2435927 | 1957-03-29 | 2435906 | 1957-03-08 | 21 | SVO |
| -13 | 10.2 | 2436333 | 1958-05-09 | 2436308 | 1958-04-14 | 25 | SVO |
| -12 | 9.8 | 2436731 | 1959-06-11 | 2436710 | 1959-05-21 | 21 | SVO |
| -11 | 10.4 | 2437135 | 1960-07-19 | 2437112 | 1960-06-26 | 23 | SVO |
| -10 | 10.4 | 2437543 | 1961-08-31 | 2437514 | 1961-08-02 | 29 | SVO |
| -9 | 9.5 | 2437936 | 1962-09-28 | 2437915 | 1962-09-07 | 21 | SVO |
| -8 | 9.7 | 2438337 | 1963-11-03 | 2438317 | 1963-10-14 | 20 | AAVSO |
| -7 | 10.0 | 2438743 | 1964-12-13 | 2438719 | 1964-11-19 | 24 | AAVSO |
| -6 | 9.9 | 2439151 | 1966-01-25 | 2439121 | 1965-12-26 | 30 | SVO |
| -5 | 10.1 | 2439539 | 1967-02-17 | 2439523 | 1967-02-01 | 16 | SVO |
| -4 | 9.7 | 2439929 | 1968-03-13 | 2439925 | 1968-03-09 | 4 | SVO |
| -3 | 9.7 | 2440342 | 1969-04-30 | 2440327 | 1969-04-15 | 15 | SVO |
| -2 | 9.8 | 2440733 | 1970-05-26 | 2440728 | 1970-05-21 | 5 | AAVSO |
| -1 | 10.5 | 2441108 | 1971-06-05 | 2441130 | 1971-06-27 | -22 | AAVSO |
| 0 | 10.5 | 2441514 | 1972-07-15 | 2441532 | 1972-08-02 | -18 | AAVSO |
| 1 | 9.5 | 2441901 | 1973-08-06 | 2441934 | 1973-09-08 | -33 | SVO |
| 2 | 10.6 | 2442310 | 1974-09-19 | 2442336 | 1974-10-15 | -26 | SVO |
| 3 | 10.6 | 2442708 | 1975-10-22 | 2442738 | 1975-11-21 | -30 | AAVSO |
| 4 | 10.8 | 2443107 | 1976-11-24 | 2443139 | 1976-12-26 | -32 | AAVSO |
| 5 | 10.8 | 2443508 | 1977-12-30 | 2443541 | 1978-02-01 | -33 | AAVSO |
| 6 | 2443906 | 1979-02-01 | 2443943 | 1979-03-10 | -37 | AAVSO | |
| 7 | 11.2 | 2444327 | 1980-03-28 | 2444345 | 1980-04-15 | -18 | AAVSO |
| 8 | 10.5 | 2444725 | 1981-04-30 | 2444747 | 1981-05-22 | -22 | AAVSO |
| 9 | 9.9 | 2445129 | 1982-06-08 | 2445149 | 1982-06-28 | -20 | SVO |
| 10 | 10.5 | 2445533 | 1983-07-17 | 2445550 | 1983-08-03 | -17 | SVO |
| 11 | 9.9 | 2445935 | 1984-08-22 | 2445952 | 1984-09-08 | -17 | SVO |
| 12 | 11.2 | 2446346 | 1985-10-07 | 2446354 | 1985-10-15 | -8 | AAVSO |
| 13 | 11.1 | 2446745 | 1986-11-10 | 2446756 | 1986-11-21 | -11 | AAVSO |
| 14 | 2447177 | 1988-01-16 | 2447158 | 1987-12-28 | 19 | AAVSO | |
| 15 | 2447549 | 1989-01-22 | 2447560 | 1989-02-02 | -11 | AAVSO | |
| 16 | 10.1 | 2447936 | 1990-02-13 | 2447962 | 1990-03-11 | -26 | SVO |
| 17 | 9.3 | 2448329 | 1991-03-13 | 2448363 | 1991-04-16 | -34 | SVO |
| 18 | 10.5 | 2448743 | 1992-04-30 | 2448765 | 1992-05-22 | -22 | SVO |
| 19 | 10.2 | 2449140 | 1993-06-01 | 2449167 | 1993-06-28 | -27 | SVO |
| 20 | 10.1 | 2449534 | 1994-06-30 | 2449569 | 1994-08-04 | -35 | SVO |
| 21 | 10.3 | 2449953 | 1995-08-23 | 2449971 | 1995-09-10 | -18 | SVO |
| 22 | 2450335 | 1996-09-08 | 2450373 | 1996-10-16 | -38 | AAVSO | |
| 23 | 2450757 | 1997-11-04 | 2450774 | 1997-11-21 | -17 | AAVSO | |
| 24 | 2451157 | 1998-12-09 | 2451176 | 1998-12-28 | -19 | AAVSO | |
| 25 | 2451561 | 2000-01-17 | 2451578 | 2000-02-03 | -17 | AAVSO | |
| 26 | 9.5 | 2451974 | 2001-03-05 | 2451980 | 2001-03-11 | -6 | SVO |
| 27 | 2452381 | 2002-04-16 | 2452382 | 2002-04-17 | -1 | AAVSO | |
| 28 | 9.0 | 2452784 | 2003-05-24 | 2452784 | 2003-05-24 | 0 | SVO |
| 29 | 2453188 | 2004-07-01 | 2453185 | 2004-06-28 | 3 | AAVSO | |
| 30 | 9.6 | 2453599 | 2005-08-16 | 2453587 | 2005-08-04 | 12 | SVO |
| 31 | 9.8 | 2454006 | 2006-09-27 | 2453989 | 2006-09-10 | 17 | SVO |
| 32 | 9.4 | 2454392 | 2007-10-18 | 2454391 | 2007-10-17 | 1 | SVO |
| 33 | 9.6 | 2454802 | 2008-12-01 | 2454793 | 2008-11-22 | 9 | SVO |
| 34 | 2455181 | 2009-12-15 | 2455195 | 2009-12-29 | -14 | AAVSO | |
| 35 | 2455575 | 2011-01-13 | 2455597 | 2011-02-04 | -22 | AAVSO | |
| 36 | 9.5 | 2456009 | 2012-03-22 | 2455998 | 2012-03-11 | 11 | AAVSO |
| 37 | 9.1 | 2456416 | 2013-05-03 | 2456400 | 2013-04-17 | 16 | SVO |
| 38 | 10.0 | 2456814 | 2014-06-05 | 2456802 | 2014-05-24 | 12 | SVO |
| 39 | 10.1 | 2457224 | 2015-07-20 | 2457204 | 2015-06-30 | 20 | AAVSO |
| 40 | 9.7 | 2457624 | 2016-08-23 | 2457606 | 2016-08-05 | 18 | SVO |
| 41 | 9.9 | 2458044 | 2017-10-17 | 2458008 | 2017-09-11 | 36 | SVO |
| 42 | 9.1 | 2458450 | 2018-11-27 | 2458409 | 2018-10-17 | 41 | SVO |
| 43 | 9.6 | 2458849 | 2019-12-31 | 2458811 | 2019-11-23 | 38 | SVO |
| 44 | 8.9 | 2459236 | 2021-01-21 | 2459213 | 2020-12-29 | 23 | SVO |
| 45 | 9.7 | 2459652 | 2022-03-13 | 2459615 | 2022-02-04 | 37 | SVO |
| 46 | 9.7 | 2460051 | 2023-04-16 | 2460017 | 2023-03-13 | 34 | SVO |
| 47 | 10.1 | 2460455 | 2024-05-24 | 2460419 | 2024-04-18 | 36 | 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. |