| E | Mag | O (JD) | O (dat) | C (JD) | C (Dat) | O-C | Source |
| -51 | 2415665 | 1901-10-07 | 2415519 | 1901-05-14 | 146 | SVO | |
| -50 | 2416196 | 1903-03-22 | 2416086 | 1902-12-02 | 110 | AnHar, 1909, vol 55, p 95 | |
| -49 | 2416762 | 1904-10-08 | 2416654 | 1904-06-22 | 108 | AnHar, 1909, vol 55, p 95 | |
| -48 | 2417313 | 1906-04-12 | 2417221 | 1906-01-10 | 92 | GuL, 1920, 1.2 | |
| -47 | 2417860 | 1907-10-11 | 2417788 | 1907-07-31 | 72 | GuL, 1920, 1.2 | |
| -45 | 2418975 | 1910-10-30 | 2418922 | 1910-09-07 | 53 | SVO | |
| -44 | 2419545 | 1912-05-22 | 2419489 | 1912-03-27 | 56 | SVO | |
| -43 | 2420110 | 1913-12-08 | 2420057 | 1913-10-16 | 53 | SVO | |
| -42 | 2420660 | 1915-06-11 | 2420624 | 1915-05-06 | 36 | SVO | |
| -41 | 2421230 | 1917-01-01 | 2421191 | 1916-11-23 | 39 | SVO | |
| -38 | 2422910 | 1921-08-08 | 2422893 | 1921-07-22 | 17 | SVO | |
| -35 | 9.8 | 2424621 | 1926-04-15 | 2424594 | 1926-03-19 | 27 | AAVSO |
| -34 | 10.2 | 2425180 | 1927-10-26 | 2425161 | 1927-10-07 | 19 | AAVSO |
| -33 | 2425740 | 1929-05-08 | 2425729 | 1929-04-27 | 11 | AAVSO | |
| -32 | 9.8 | 2426271 | 1930-10-21 | 2426296 | 1930-11-15 | -25 | AAVSO |
| -31 | 9.9 | 2426829 | 1932-05-01 | 2426863 | 1932-06-04 | -34 | AAVSO |
| -30 | 10.0 | 2427407 | 1933-11-30 | 2427430 | 1933-12-23 | -23 | AAVSO |
| -29 | 9.7 | 2427967 | 1935-06-13 | 2427997 | 1935-07-13 | -30 | AAVSO |
| -28 | 2428528 | 1936-12-25 | 2428565 | 1937-01-31 | -37 | AAVSO | |
| -27 | 10.4 | 2429088 | 1938-07-08 | 2429132 | 1938-08-21 | -44 | AAVSO |
| -26 | 2429645 | 1940-01-16 | 2429699 | 1940-03-10 | -54 | AAVSO | |
| -25 | 9.9 | 2430196 | 1941-07-20 | 2430266 | 1941-09-28 | -70 | SVO |
| -24 | 2430769 | 1943-02-13 | 2430833 | 1943-04-18 | -64 | AAVSO | |
| -23 | 9.2 | 2431325 | 1944-08-22 | 2431400 | 1944-11-05 | -75 | SVO |
| -22 | 2431890 | 1946-03-10 | 2431968 | 1946-05-27 | -78 | AAVSO | |
| -21 | 9.9 | 2432438 | 1947-09-09 | 2432535 | 1947-12-15 | -97 | SVO |
| -20 | 8.2 | 2433011 | 1949-04-04 | 2433102 | 1949-07-04 | -91 | AAVSO |
| -19 | 9.1 | 2433578 | 1950-10-23 | 2433669 | 1951-01-22 | -91 | SVO |
| -18 | 10.9 | 2434147 | 1952-05-14 | 2434236 | 1952-08-11 | -89 | AAVSO |
| -17 | 8.9 | 2434740 | 1953-12-28 | 2434804 | 1954-03-02 | -64 | SVO |
| -16 | 9.7 | 2435308 | 1955-07-19 | 2435371 | 1955-09-20 | -63 | SVO |
| -15 | 9.4 | 2435905 | 1957-03-07 | 2435938 | 1957-04-09 | -33 | AAVSO |
| -14 | 10.3 | 2436489 | 1958-10-12 | 2436505 | 1958-10-28 | -16 | SVO |
| -13 | 10.2 | 2437057 | 1960-05-02 | 2437072 | 1960-05-17 | -15 | AAVSO |
| -12 | 9.6 | 2437637 | 1961-12-03 | 2437640 | 1961-12-06 | -3 | SVO |
| -11 | 10.1 | 2438208 | 1963-06-27 | 2438207 | 1963-06-26 | 1 | SVO |
| -10 | 9.4 | 2438779 | 1965-01-18 | 2438774 | 1965-01-13 | 5 | SVO |
| -9 | 9.8 | 2439352 | 1966-08-14 | 2439341 | 1966-08-03 | 11 | SVO |
| -8 | 2439880 | 1968-01-24 | 2439908 | 1968-02-21 | -28 | AAVSO | |
| -7 | 10.8 | 2440484 | 1969-09-19 | 2440476 | 1969-09-11 | 8 | SVO |
| -6 | 2441018 | 1971-03-07 | 2441043 | 1971-04-01 | -25 | AAVSO | |
| -5 | 10.1 | 2441603 | 1972-10-12 | 2441610 | 1972-10-19 | -7 | SVO |
| -4 | 10.2 | 2442156 | 1974-04-18 | 2442177 | 1974-05-09 | -21 | AAVSO |
| -3 | 10.8 | 2442723 | 1975-11-06 | 2442744 | 1975-11-27 | -21 | SVO |
| -2 | 10.7 | 2443290 | 1977-05-26 | 2443311 | 1977-06-16 | -21 | SVO |
| -1 | 11.1 | 2443862 | 1978-12-19 | 2443879 | 1979-01-05 | -17 | SVO |
| 0 | 10.0 | 2444429 | 1980-07-08 | 2444446 | 1980-07-25 | -17 | SVO |
| 1 | 10.9 | 2444991 | 1982-01-21 | 2445013 | 1982-02-12 | -22 | SVO |
| 2 | 10.9 | 2445572 | 1983-08-25 | 2445580 | 1983-09-02 | -8 | SVO |
| 3 | 10.5 | 2446141 | 1985-03-16 | 2446147 | 1985-03-22 | -6 | SVO |
| 4 | 10.0 | 2446705 | 1986-10-01 | 2446715 | 1986-10-11 | -10 | SVO |
| 5 | 2447256 | 1988-04-04 | 2447282 | 1988-04-30 | -26 | AAVSO | |
| 6 | 11.3 | 2447817 | 1989-10-17 | 2447849 | 1989-11-18 | -32 | SVO |
| 7 | 9.4 | 2448387 | 1991-05-10 | 2448416 | 1991-06-08 | -29 | SVO |
| 8 | 11.3 | 2448959 | 1992-12-02 | 2448983 | 1992-12-26 | -24 | SVO |
| 9 | 10.4 | 2449541 | 1994-07-07 | 2449551 | 1994-07-17 | -10 | SVO |
| 10 | 10.7 | 2450099 | 1996-01-16 | 2450118 | 1996-02-04 | -19 | SVO |
| 11 | 10.0 | 2450660 | 1997-07-30 | 2450685 | 1997-08-24 | -25 | SVO |
| 12 | 9.8 | 2451227 | 1999-02-17 | 2451252 | 1999-03-14 | -25 | SVO |
| 13 | 10.5 | 2451795 | 2000-09-07 | 2451819 | 2000-10-01 | -24 | SVO |
| 14 | 2452367 | 2002-04-02 | 2452387 | 2002-04-22 | -20 | AAVSO | |
| 15 | 9.8 | 2452945 | 2003-11-01 | 2452954 | 2003-11-10 | -9 | SVO |
| 16 | 2453511 | 2005-05-20 | 2453521 | 2005-05-30 | -10 | AAVSO | |
| 17 | 10.2 | 2454080 | 2006-12-10 | 2454088 | 2006-12-18 | -8 | SVO |
| 18 | 10.7 | 2454664 | 2008-07-16 | 2454655 | 2008-07-07 | 9 | SVO |
| 19 | 10.4 | 2455248 | 2010-02-20 | 2455222 | 2010-01-25 | 26 | SVO |
| 20 | 10.8 | 2455820 | 2011-09-15 | 2455790 | 2011-08-16 | 30 | SVO |
| 21 | 11.7 | 2456390 | 2013-04-07 | 2456357 | 2013-03-05 | 33 | SVO |
| 22 | 10.7 | 2456976 | 2014-11-14 | 2456924 | 2014-09-23 | 52 | SVO |
| 23 | 11.2 | 2457548 | 2016-06-08 | 2457491 | 2016-04-12 | 57 | SVO |
| 24 | 10.4 | 2458140 | 2018-01-21 | 2458058 | 2017-10-31 | 82 | SVO |
| 25 | 11.7 | 2458714 | 2019-08-18 | 2458626 | 2019-05-22 | 88 | SVO |
| 26 | 11.2 | 2459291 | 2021-03-17 | 2459193 | 2020-12-09 | 98 | SVO |
| 27 | 11.7 | 2459867 | 2022-10-14 | 2459760 | 2022-06-29 | 107 | SVO |
| 28 | 10.4 | 2460440 | 2024-05-09 | 2460327 | 2024-01-17 | 113 | 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. |