| E | Mag | O (JD) | O (dat) | C (JD) | C (Dat) | O-C | Source |
| -63 | 2415970 | 1902-08-08 | 2415969 | 1902-08-07 | 1 | AnHar, 1952, vol 118 | |
| -62 | 2416400 | 1903-10-12 | 2416399 | 1903-10-11 | 1 | SVO | |
| -61 | 2416832 | 1904-12-17 | 2416830 | 1904-12-15 | 2 | AnHar, 1909, vol 55, p 95 | |
| -60 | 2417247 | 1906-02-05 | 2417260 | 1906-02-18 | -13 | AnHar, 1909, vol 55, p 95 | |
| -59 | 2417702 | 1907-05-06 | 2417690 | 1907-04-24 | 12 | GuL, 1918, 1.1 | |
| -58 | 2418104 | 1908-06-11 | 2418121 | 1908-06-28 | -17 | AAVSO | |
| -57 | 8.5 | 2418541 | 1909-08-22 | 2418551 | 1909-09-01 | -10 | AAVSO |
| -56 | 8.5 | 2418988 | 1910-11-12 | 2418981 | 1910-11-05 | 7 | AAVSO |
| -55 | 9.3 | 2419405 | 1912-01-03 | 2419412 | 1912-01-10 | -7 | SVO |
| -54 | 9.3 | 2419832 | 1913-03-05 | 2419842 | 1913-03-15 | -10 | AAVSO |
| -53 | 2420268 | 1914-05-15 | 2420272 | 1914-05-19 | -4 | AAVSO | |
| -52 | 2420680 | 1915-07-01 | 2420702 | 1915-07-23 | -22 | AAVSO | |
| -51 | 8.0 | 2421116 | 1916-09-09 | 2421133 | 1916-09-26 | -17 | SVO |
| -50 | 10.1 | 2421547 | 1917-11-14 | 2421563 | 1917-11-30 | -16 | SVO |
| -49 | 8.2 | 2422006 | 1919-02-16 | 2421993 | 1919-02-03 | 13 | AAVSO |
| -48 | 8.5 | 2422413 | 1920-03-29 | 2422424 | 1920-04-09 | -11 | AAVSO |
| -47 | 9.4 | 2422880 | 1921-07-09 | 2422854 | 1921-06-13 | 26 | SVO |
| -46 | 8.4 | 2423279 | 1922-08-12 | 2423284 | 1922-08-17 | -5 | SVO |
| -45 | 8.4 | 2423709 | 1923-10-16 | 2423715 | 1923-10-22 | -6 | SVO |
| -44 | 8.4 | 2424137 | 1924-12-17 | 2424145 | 1924-12-25 | -8 | SVO |
| -43 | 8.2 | 2424565 | 1926-02-18 | 2424575 | 1926-02-28 | -10 | SVO |
| -42 | 8.5 | 2425007 | 1927-05-06 | 2425005 | 1927-05-04 | 2 | SVO |
| -41 | 9.7 | 2425448 | 1928-07-20 | 2425436 | 1928-07-08 | 12 | SVO |
| -40 | 7.9 | 2425872 | 1929-09-17 | 2425866 | 1929-09-11 | 6 | SVO |
| -39 | 9.0 | 2426311 | 1930-11-30 | 2426296 | 1930-11-15 | 15 | SVO |
| -38 | 8.5 | 2426741 | 1932-02-03 | 2426727 | 1932-01-20 | 14 | SVO |
| -37 | 8.4 | 2427176 | 1933-04-13 | 2427157 | 1933-03-25 | 19 | SVO |
| -36 | 9.2 | 2427619 | 1934-06-30 | 2427587 | 1934-05-29 | 32 | SVO |
| -35 | 8.7 | 2428054 | 1935-09-08 | 2428018 | 1935-08-03 | 36 | SVO |
| -34 | 9.3 | 2428472 | 1936-10-30 | 2428448 | 1936-10-06 | 24 | SVO |
| -33 | 8.1 | 2428895 | 1937-12-27 | 2428878 | 1937-12-10 | 17 | SVO |
| -32 | 8.4 | 2429310 | 1939-02-15 | 2429308 | 1939-02-13 | 2 | SVO |
| -31 | 2429746 | 1940-04-26 | 2429739 | 1940-04-19 | 7 | AAVSO | |
| -30 | 2430168 | 1941-06-22 | 2430169 | 1941-06-23 | -1 | AAVSO | |
| -29 | 8.7 | 2430602 | 1942-08-30 | 2430599 | 1942-08-27 | 3 | SVO |
| -28 | 9.7 | 2431020 | 1943-10-22 | 2431030 | 1943-11-01 | -10 | SVO |
| -27 | 8.3 | 2431453 | 1944-12-28 | 2431460 | 1945-01-04 | -7 | SVO |
| -26 | 9.7 | 2431872 | 1946-02-20 | 2431890 | 1946-03-10 | -18 | AAVSO |
| -25 | 2432304 | 1947-04-28 | 2432321 | 1947-05-15 | -17 | AAVSO | |
| -24 | 7.9 | 2432730 | 1948-06-27 | 2432751 | 1948-07-18 | -21 | AAVSO |
| -23 | 9.4 | 2433167 | 1949-09-07 | 2433181 | 1949-09-21 | -14 | SVO |
| -22 | 8.4 | 2433593 | 1950-11-07 | 2433611 | 1950-11-25 | -18 | SVO |
| -21 | 9.0 | 2434012 | 1951-12-31 | 2434042 | 1952-01-30 | -30 | SVO |
| -20 | 8.4 | 2434437 | 1953-02-28 | 2434472 | 1953-04-04 | -35 | SVO |
| -19 | 2434876 | 1954-05-13 | 2434902 | 1954-06-08 | -26 | AAVSO | |
| -18 | 8.7 | 2435320 | 1955-07-31 | 2435333 | 1955-08-13 | -13 | SVO |
| -17 | 8.7 | 2435750 | 1956-10-03 | 2435763 | 1956-10-16 | -13 | SVO |
| -16 | 8.5 | 2436179 | 1957-12-06 | 2436193 | 1957-12-20 | -14 | SVO |
| -15 | 9.9 | 2436605 | 1959-02-05 | 2436624 | 1959-02-24 | -19 | AAVSO |
| -14 | 2437035 | 1960-04-10 | 2437054 | 1960-04-29 | -19 | AAVSO | |
| -13 | 8.8 | 2437464 | 1961-06-13 | 2437484 | 1961-07-03 | -20 | AAVSO |
| -12 | 9.4 | 2437886 | 1962-08-09 | 2437914 | 1962-09-06 | -28 | AAVSO |
| -11 | 8.7 | 2438327 | 1963-10-24 | 2438345 | 1963-11-11 | -18 | SVO |
| -10 | 8.5 | 2438757 | 1964-12-27 | 2438775 | 1965-01-14 | -18 | SVO |
| -9 | 9.1 | 2439195 | 1966-03-10 | 2439205 | 1966-03-20 | -10 | SVO |
| -8 | 8.7 | 2439634 | 1967-05-23 | 2439636 | 1967-05-25 | -2 | SVO |
| -7 | 10.9 | 2440055 | 1968-07-17 | 2440066 | 1968-07-28 | -11 | AAVSO |
| -6 | 8.8 | 2440472 | 1969-09-07 | 2440496 | 1969-10-01 | -24 | SVO |
| -5 | 11.2 | 2440922 | 1970-12-01 | 2440927 | 1970-12-06 | -5 | SVO |
| -4 | 8.9 | 2441346 | 1972-01-29 | 2441357 | 1972-02-09 | -11 | SVO |
| -3 | 9.4 | 2441782 | 1973-04-09 | 2441787 | 1973-04-14 | -5 | SVO |
| -2 | 8.1 | 2442203 | 1974-06-04 | 2442217 | 1974-06-18 | -14 | AAVSO |
| -1 | 10.0 | 2442656 | 1975-08-31 | 2442648 | 1975-08-23 | 8 | SVO |
| 0 | 8.3 | 2443070 | 1976-10-18 | 2443078 | 1976-10-26 | -8 | SVO |
| 1 | 10.0 | 2443522 | 1978-01-13 | 2443508 | 1977-12-30 | 14 | SVO |
| 2 | 9.4 | 2443946 | 1979-03-13 | 2443939 | 1979-03-06 | 7 | SVO |
| 3 | 8.6 | 2444376 | 1980-05-16 | 2444369 | 1980-05-09 | 7 | SVO |
| 4 | 11.0 | 2444813 | 1981-07-27 | 2444799 | 1981-07-13 | 14 | SVO |
| 5 | 9.5 | 2445244 | 1982-10-01 | 2445230 | 1982-09-17 | 14 | SVO |
| 6 | 9.4 | 2445664 | 1983-11-25 | 2445660 | 1983-11-21 | 4 | SVO |
| 7 | 9.5 | 2446104 | 1985-02-07 | 2446090 | 1985-01-24 | 14 | SVO |
| 8 | 8.8 | 2446526 | 1986-04-05 | 2446520 | 1986-03-30 | 6 | SVO |
| 9 | 9.6 | 2446954 | 1987-06-07 | 2446951 | 1987-06-04 | 3 | SVO |
| 10 | 8.6 | 2447387 | 1988-08-13 | 2447381 | 1988-08-07 | 6 | SVO |
| 11 | 10.1 | 2447804 | 1989-10-04 | 2447811 | 1989-10-11 | -7 | SVO |
| 12 | 8.8 | 2448228 | 1990-12-02 | 2448242 | 1990-12-16 | -14 | SVO |
| 13 | 9.6 | 2448663 | 1992-02-10 | 2448672 | 1992-02-19 | -9 | SVO |
| 14 | 8.5 | 2449087 | 1993-04-09 | 2449102 | 1993-04-24 | -15 | SVO |
| 15 | 2449514 | 1994-06-10 | 2449533 | 1994-06-29 | -19 | AAVSO | |
| 16 | 9.0 | 2449948 | 1995-08-18 | 2449963 | 1995-09-02 | -15 | SVO |
| 17 | 9.8 | 2450390 | 1996-11-02 | 2450393 | 1996-11-05 | -3 | SVO |
| 18 | 8.3 | 2450821 | 1998-01-07 | 2450823 | 1998-01-09 | -2 | SVO |
| 19 | 9.7 | 2451240 | 1999-03-02 | 2451254 | 1999-03-16 | -14 | SVO |
| 20 | 9.3 | 2451653 | 2000-04-18 | 2451684 | 2000-05-19 | -31 | SVO |
| 21 | 8.3 | 2452076 | 2001-06-15 | 2452114 | 2001-07-23 | -38 | SVO |
| 22 | 9.1 | 2452498 | 2002-08-11 | 2452545 | 2002-09-27 | -47 | SVO |
| 23 | 9.0 | 2452927 | 2003-10-14 | 2452975 | 2003-12-01 | -48 | SVO |
| 24 | 8.6 | 2453358 | 2004-12-18 | 2453405 | 2005-02-03 | -47 | SVO |
| 25 | 9.5 | 2453795 | 2006-02-28 | 2453836 | 2006-04-10 | -41 | SVO |
| 26 | 8.9 | 2454222 | 2007-05-01 | 2454266 | 2007-06-14 | -44 | SVO |
| 27 | 8.5 | 2454646 | 2008-06-28 | 2454696 | 2008-08-17 | -50 | SVO |
| 28 | 9.9 | 2455081 | 2009-09-06 | 2455126 | 2009-10-21 | -45 | SVO |
| 29 | 9.1 | 2455511 | 2010-11-10 | 2455557 | 2010-12-26 | -46 | SVO |
| 30 | 9.4 | 2455930 | 2012-01-03 | 2455987 | 2012-02-29 | -57 | SVO |
| 31 | 9.0 | 2456370 | 2013-03-18 | 2456417 | 2013-05-04 | -47 | SVO |
| 32 | 9.2 | 2456817 | 2014-06-08 | 2456848 | 2014-07-09 | -31 | SVO |
| 33 | 9.0 | 2457255 | 2015-08-20 | 2457278 | 2015-09-12 | -23 | SVO |
| 34 | 8.4 | 2457683 | 2016-10-21 | 2457708 | 2016-11-15 | -25 | SVO |
| 35 | 8.6 | 2458129 | 2018-01-10 | 2458139 | 2018-01-20 | -10 | SVO |
| 36 | 8.8 | 2458557 | 2019-03-14 | 2458569 | 2019-03-26 | -12 | SVO |
| 37 | 8.4 | 2458991 | 2020-05-21 | 2458999 | 2020-05-29 | -8 | SVO |
| 38 | 9.4 | 2459410 | 2021-07-14 | 2459429 | 2021-08-02 | -19 | SVO |
| 39 | 9.4 | 2459852 | 2022-09-29 | 2459860 | 2022-10-07 | -8 | 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. |