| E | Mag | O (JD) | O (dat) | C (JD) | C (Dat) | O-C | Source |
| -57 | 2417098 | 1905-09-09 | 2417132 | 1905-10-13 | -34 | AAVSO | |
| -56 | 2417508 | 1906-10-24 | 2417541 | 1906-11-26 | -33 | AAVSO | |
| -55 | 9.5 | 2417934 | 1907-12-24 | 2417950 | 1908-01-09 | -16 | AAVSO |
| -54 | 2418354 | 1909-02-16 | 2418360 | 1909-02-22 | -6 | AAVSO | |
| -53 | 2418764 | 1910-04-02 | 2418769 | 1910-04-07 | -5 | AAVSO | |
| -48 | 9.0 | 2420812 | 1915-11-10 | 2420815 | 1915-11-13 | -3 | AAVSO |
| -47 | 9.8 | 2421221 | 1916-12-23 | 2421225 | 1916-12-27 | -4 | AAVSO |
| -46 | 2421618 | 1918-01-24 | 2421634 | 1918-02-09 | -16 | AAVSO | |
| -42 | 10.2 | 2423255 | 1922-07-19 | 2423271 | 1922-08-04 | -16 | AAVSO |
| -41 | 10.0 | 2423674 | 1923-09-11 | 2423680 | 1923-09-17 | -6 | SVO |
| -40 | 10.2 | 2424092 | 1924-11-02 | 2424089 | 1924-10-30 | 3 | SVO |
| -39 | 9.9 | 2424477 | 1925-11-22 | 2424499 | 1925-12-14 | -22 | SVO |
| -38 | 10.0 | 2424890 | 1927-01-09 | 2424908 | 1927-01-27 | -18 | SVO |
| -37 | 10.0 | 2425327 | 1928-03-21 | 2425317 | 1928-03-11 | 10 | SVO |
| -36 | 9.7 | 2425722 | 1929-04-20 | 2425727 | 1929-04-25 | -5 | SVO |
| -35 | 9.8 | 2426108 | 1930-05-11 | 2426136 | 1930-06-08 | -28 | SVO |
| -34 | 9.9 | 2426520 | 1931-06-27 | 2426545 | 1931-07-22 | -25 | SVO |
| -33 | 10.1 | 2426935 | 1932-08-15 | 2426954 | 1932-09-03 | -19 | SVO |
| -32 | 10.2 | 2427357 | 1933-10-11 | 2427364 | 1933-10-18 | -7 | SVO |
| -31 | 9.9 | 2427768 | 1934-11-26 | 2427773 | 1934-12-01 | -5 | SVO |
| -30 | 10.4 | 2428175 | 1936-01-07 | 2428182 | 1936-01-14 | -7 | SVO |
| -29 | 10.2 | 2428569 | 1937-02-04 | 2428591 | 1937-02-26 | -22 | SVO |
| -28 | 10.3 | 2428977 | 1938-03-19 | 2429001 | 1938-04-12 | -24 | SVO |
| -27 | 10.4 | 2429392 | 1939-05-08 | 2429410 | 1939-05-26 | -18 | SVO |
| -26 | 10.1 | 2429817 | 1940-07-06 | 2429819 | 1940-07-08 | -2 | SVO |
| -25 | 10.0 | 2430211 | 1941-08-04 | 2430229 | 1941-08-22 | -18 | SVO |
| -24 | 10.2 | 2430631 | 1942-09-28 | 2430638 | 1942-10-05 | -7 | SVO |
| -23 | 10.1 | 2431030 | 1943-11-01 | 2431047 | 1943-11-18 | -17 | SVO |
| -22 | 10.3 | 2431442 | 1944-12-17 | 2431456 | 1944-12-31 | -14 | SVO |
| -21 | 10.2 | 2431858 | 1946-02-06 | 2431866 | 1946-02-14 | -8 | SVO |
| -20 | 10.3 | 2432286 | 1947-04-10 | 2432275 | 1947-03-30 | 11 | AAVSO |
| -19 | 10.1 | 2432697 | 1948-05-25 | 2432684 | 1948-05-12 | 13 | SVO |
| -18 | 10.2 | 2433111 | 1949-07-13 | 2433093 | 1949-06-25 | 18 | SVO |
| -17 | 10.0 | 2433535 | 1950-09-10 | 2433503 | 1950-08-09 | 32 | SVO |
| -16 | 10.0 | 2433943 | 1951-10-23 | 2433912 | 1951-09-22 | 31 | SVO |
| -15 | 10.0 | 2434356 | 1952-12-09 | 2434321 | 1952-11-04 | 35 | SVO |
| -14 | 10.4 | 2434761 | 1954-01-18 | 2434730 | 1953-12-18 | 31 | SVO |
| -13 | 10.5 | 2435163 | 1955-02-24 | 2435140 | 1955-02-01 | 23 | SVO |
| -12 | 10.2 | 2435579 | 1956-04-15 | 2435549 | 1956-03-16 | 30 | SVO |
| -11 | 10.2 | 2435996 | 1957-06-06 | 2435958 | 1957-04-29 | 38 | SVO |
| -10 | 10.2 | 2436396 | 1958-07-11 | 2436368 | 1958-06-13 | 28 | SVO |
| -9 | 9.9 | 2436786 | 1959-08-05 | 2436777 | 1959-07-27 | 9 | SVO |
| -8 | 10.1 | 2437199 | 1960-09-21 | 2437186 | 1960-09-08 | 13 | SVO |
| -7 | 9.9 | 2437594 | 1961-10-21 | 2437595 | 1961-10-22 | -1 | SVO |
| -6 | 10.1 | 2438024 | 1962-12-25 | 2438005 | 1962-12-06 | 19 | SVO |
| -5 | 10.1 | 2438419 | 1964-01-24 | 2438414 | 1964-01-19 | 5 | SVO |
| -4 | 10.1 | 2438853 | 1965-04-02 | 2438823 | 1965-03-03 | 30 | SVO |
| -3 | 9.9 | 2439257 | 1966-05-11 | 2439232 | 1966-04-16 | 25 | SVO |
| -2 | 10.0 | 2439675 | 1967-07-03 | 2439642 | 1967-05-31 | 33 | SVO |
| -1 | 10.2 | 2440095 | 1968-08-26 | 2440051 | 1968-07-13 | 44 | SVO |
| 0 | 9.9 | 2440500 | 1969-10-05 | 2440460 | 1969-08-26 | 40 | SVO |
| 1 | 10.1 | 2440881 | 1970-10-21 | 2440870 | 1970-10-10 | 11 | SVO |
| 2 | 10.1 | 2441283 | 1971-11-27 | 2441279 | 1971-11-23 | 4 | SVO |
| 3 | 10.0 | 2441711 | 1973-01-28 | 2441688 | 1973-01-05 | 23 | SVO |
| 4 | 10.0 | 2442120 | 1974-03-13 | 2442097 | 1974-02-18 | 23 | SVO |
| 5 | 10.1 | 2442536 | 1975-05-03 | 2442507 | 1975-04-04 | 29 | SVO |
| 6 | 10.2 | 2442939 | 1976-06-09 | 2442916 | 1976-05-17 | 23 | AAVSO |
| 7 | 10.0 | 2443337 | 1977-07-12 | 2443325 | 1977-06-30 | 12 | SVO |
| 8 | 10.0 | 2443749 | 1978-08-28 | 2443734 | 1978-08-13 | 15 | SVO |
| 9 | 10.2 | 2444150 | 1979-10-03 | 2444144 | 1979-09-27 | 6 | SVO |
| 10 | 10.1 | 2444562 | 1980-11-18 | 2444553 | 1980-11-09 | 9 | SVO |
| 11 | 10.0 | 2444957 | 1981-12-18 | 2444962 | 1981-12-23 | -5 | SVO |
| 12 | 10.4 | 2445356 | 1983-01-21 | 2445371 | 1983-02-05 | -15 | SVO |
| 13 | 10.2 | 2445769 | 1984-03-09 | 2445781 | 1984-03-21 | -12 | SVO |
| 14 | 10.4 | 2446184 | 1985-04-28 | 2446190 | 1985-05-04 | -6 | SVO |
| 15 | 10.3 | 2446591 | 1986-06-09 | 2446599 | 1986-06-17 | -8 | SVO |
| 16 | 10.3 | 2447002 | 1987-07-25 | 2447009 | 1987-08-01 | -7 | SVO |
| 17 | 10.4 | 2447420 | 1988-09-15 | 2447418 | 1988-09-13 | 2 | SVO |
| 18 | 10.2 | 2447834 | 1989-11-03 | 2447827 | 1989-10-27 | 7 | SVO |
| 19 | 10.5 | 2448230 | 1990-12-04 | 2448236 | 1990-12-10 | -6 | SVO |
| 20 | 10.4 | 2448648 | 1992-01-26 | 2448646 | 1992-01-24 | 2 | SVO |
| 21 | 10.3 | 2449052 | 1993-03-05 | 2449055 | 1993-03-08 | -3 | SVO |
| 22 | 10.4 | 2449457 | 1994-04-14 | 2449464 | 1994-04-21 | -7 | SVO |
| 23 | 10.3 | 2449876 | 1995-06-07 | 2449873 | 1995-06-04 | 3 | SVO |
| 24 | 10.2 | 2450290 | 1996-07-25 | 2450283 | 1996-07-18 | 7 | SVO |
| 25 | 10.3 | 2450700 | 1997-09-08 | 2450692 | 1997-08-31 | 8 | SVO |
| 26 | 10.3 | 2451094 | 1998-10-07 | 2451101 | 1998-10-14 | -7 | SVO |
| 27 | 10.3 | 2451511 | 1999-11-28 | 2451511 | 1999-11-28 | 0 | SVO |
| 28 | 10.4 | 2451918 | 2001-01-08 | 2451920 | 2001-01-10 | -2 | SVO |
| 29 | 10.4 | 2452336 | 2002-03-02 | 2452329 | 2002-02-23 | 7 | SVO |
| 30 | 10.4 | 2452737 | 2003-04-07 | 2452738 | 2003-04-08 | -1 | SVO |
| 31 | 10.4 | 2453147 | 2004-05-21 | 2453148 | 2004-05-22 | -1 | SVO |
| 32 | 10.1 | 2453550 | 2005-06-28 | 2453557 | 2005-07-05 | -7 | SVO |
| 33 | 10.0 | 2453966 | 2006-08-18 | 2453966 | 2006-08-18 | 0 | SVO |
| 34 | 10.4 | 2454386 | 2007-10-12 | 2454375 | 2007-10-01 | 11 | SVO |
| 35 | 9.9 | 2454788 | 2008-11-17 | 2454785 | 2008-11-14 | 3 | SVO |
| 36 | 10.0 | 2455204 | 2010-01-07 | 2455194 | 2009-12-28 | 10 | SVO |
| 37 | 10.0 | 2455601 | 2011-02-08 | 2455603 | 2011-02-10 | -2 | SVO |
| 38 | 10.0 | 2455996 | 2012-03-09 | 2456012 | 2012-03-25 | -16 | SVO |
| 39 | 9.8 | 2456402 | 2013-04-19 | 2456422 | 2013-05-09 | -20 | SVO |
| 40 | 9.9 | 2456839 | 2014-06-30 | 2456831 | 2014-06-22 | 8 | SVO |
| 41 | 9.8 | 2457224 | 2015-07-20 | 2457240 | 2015-08-05 | -16 | SVO |
| 42 | 9.9 | 2457645 | 2016-09-13 | 2457650 | 2016-09-18 | -5 | SVO |
| 43 | 10.0 | 2458054 | 2017-10-27 | 2458059 | 2017-11-01 | -5 | SVO |
| 44 | 9.9 | 2458444 | 2018-11-21 | 2458468 | 2018-12-15 | -24 | SVO |
| 45 | 9.8 | 2458852 | 2020-01-03 | 2458877 | 2020-01-28 | -25 | SVO |
| 46 | 9.7 | 2459260 | 2021-02-14 | 2459287 | 2021-03-13 | -27 | SVO |
| 47 | 9.5 | 2459652 | 2022-03-13 | 2459696 | 2022-04-26 | -44 | SVO |
| 48 | 9.6 | 2460074 | 2023-05-09 | 2460105 | 2023-06-09 | -31 | SVO |
| 49 | 9.6 | 2460478 | 2024-06-16 | 2460514 | 2024-07-22 | -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. |