| E | Mag | O (JD) | O (dat) | C (JD) | C (Dat) | O-C | Source |
| -72 | 2416421 | 1903-11-02 | 2416442 | 1903-11-23 | -21 | SVO | |
| -59 | 2420929 | 1916-03-06 | 2420906 | 1916-02-12 | 23 | AN, 1923, vol 217, p 439 | |
| -58 | 2421272 | 1917-02-12 | 2421249 | 1917-01-20 | 23 | AN, 1923, vol 217, p 439 | |
| -57 | 2421579 | 1917-12-16 | 2421592 | 1917-12-29 | -13 | AN, 1923, vol 217, p 439 | |
| -56 | 2421955 | 1918-12-27 | 2421936 | 1918-12-08 | 19 | AN, 1923, vol 217, p 439 | |
| -55 | 2422300 | 1919-12-07 | 2422279 | 1919-11-16 | 21 | SVO | |
| -53 | 2422980 | 1921-10-17 | 2422966 | 1921-10-03 | 14 | SVO | |
| -52 | 2423310 | 1922-09-12 | 2423309 | 1922-09-11 | 1 | SVO | |
| -51 | 2423660 | 1923-08-28 | 2423653 | 1923-08-21 | 7 | SVO | |
| -50 | 2424000 | 1924-08-02 | 2423996 | 1924-07-29 | 4 | SVO | |
| -49 | 2424340 | 1925-07-08 | 2424339 | 1925-07-07 | 1 | SVO | |
| -48 | 10.4 | 2424681 | 1926-06-14 | 2424683 | 1926-06-16 | -2 | SVO |
| -40 | 2427420 | 1933-12-13 | 2427430 | 1933-12-23 | -10 | SVO | |
| -39 | 2427775 | 1934-12-03 | 2427773 | 1934-12-01 | 2 | SVO | |
| -38 | 10.4 | 2428125 | 1935-11-18 | 2428117 | 1935-11-10 | 8 | SVO |
| -37 | 10.6 | 2428470 | 1936-10-28 | 2428460 | 1936-10-18 | 10 | SVO |
| -36 | 2428809 | 1937-10-02 | 2428803 | 1937-09-26 | 6 | AAVSO | |
| -35 | 10.2 | 2429151 | 1938-09-09 | 2429147 | 1938-09-05 | 4 | SVO |
| -34 | 11.9 | 2429508 | 1939-09-01 | 2429490 | 1939-08-14 | 18 | SVO |
| -33 | 2429847 | 1940-08-05 | 2429833 | 1940-07-22 | 14 | AAVSO | |
| -32 | 10.0 | 2430180 | 1941-07-04 | 2430177 | 1941-07-01 | 3 | AAVSO |
| -31 | 2430546 | 1942-07-05 | 2430520 | 1942-06-09 | 26 | AAVSO | |
| -30 | 10.2 | 2430883 | 1943-06-07 | 2430864 | 1943-05-19 | 19 | AAVSO |
| -29 | 9.8 | 2431223 | 1944-05-12 | 2431207 | 1944-04-26 | 16 | AAVSO |
| -28 | 2431573 | 1945-04-27 | 2431550 | 1945-04-04 | 23 | AAVSO | |
| -27 | 2431917 | 1946-04-06 | 2431894 | 1946-03-14 | 23 | AAVSO | |
| -26 | 2432258 | 1947-03-13 | 2432237 | 1947-02-20 | 21 | AAVSO | |
| -25 | 2432605 | 1948-02-23 | 2432581 | 1948-01-30 | 24 | AAVSO | |
| -24 | 10.2 | 2432945 | 1949-01-28 | 2432924 | 1949-01-07 | 21 | AAVSO |
| -23 | 2433297 | 1950-01-15 | 2433267 | 1949-12-16 | 30 | AAVSO | |
| -22 | 2433635 | 1950-12-19 | 2433611 | 1950-11-25 | 24 | AAVSO | |
| -21 | 10.8 | 2433981 | 1951-11-30 | 2433954 | 1951-11-03 | 27 | SVO |
| -20 | 10.6 | 2434321 | 1952-11-04 | 2434297 | 1952-10-11 | 24 | SVO |
| -19 | 10.3 | 2434660 | 1953-10-09 | 2434641 | 1953-09-20 | 19 | SVO |
| -18 | 10.4 | 2435009 | 1954-09-23 | 2434984 | 1954-08-29 | 25 | SVO |
| -17 | 10.3 | 2435358 | 1955-09-07 | 2435328 | 1955-08-08 | 30 | SVO |
| -16 | 2435695 | 1956-08-09 | 2435671 | 1956-07-16 | 24 | AAVSO | |
| -15 | 11.0 | 2436049 | 1957-07-29 | 2436014 | 1957-06-24 | 35 | SVO |
| -14 | 2436379 | 1958-06-24 | 2436358 | 1958-06-03 | 21 | AAVSO | |
| -13 | 2436722 | 1959-06-02 | 2436701 | 1959-05-12 | 21 | AAVSO | |
| -12 | 2437065 | 1960-05-10 | 2437044 | 1960-04-19 | 21 | AAVSO | |
| -11 | 2437408 | 1961-04-18 | 2437388 | 1961-03-29 | 20 | AAVSO | |
| -10 | 10.1 | 2437757 | 1962-04-02 | 2437731 | 1962-03-07 | 26 | SVO |
| -9 | 2438094 | 1963-03-05 | 2438075 | 1963-02-14 | 19 | AAVSO | |
| -8 | 10.3 | 2438454 | 1964-02-28 | 2438418 | 1964-01-23 | 36 | SVO |
| -7 | 10.6 | 2438781 | 1965-01-20 | 2438761 | 1964-12-31 | 20 | SVO |
| -6 | 10.6 | 2439119 | 1965-12-24 | 2439105 | 1965-12-10 | 14 | SVO |
| -5 | 10.3 | 2439461 | 1966-12-01 | 2439448 | 1966-11-18 | 13 | SVO |
| -4 | 10.4 | 2439798 | 1967-11-03 | 2439791 | 1967-10-27 | 7 | SVO |
| -3 | 10.8 | 2440140 | 1968-10-10 | 2440135 | 1968-10-05 | 5 | SVO |
| -2 | 10.7 | 2440482 | 1969-09-17 | 2440478 | 1969-09-13 | 4 | SVO |
| -1 | 10.6 | 2440825 | 1970-08-26 | 2440822 | 1970-08-23 | 3 | SVO |
| 0 | 2441164 | 1971-07-31 | 2441165 | 1971-08-01 | -1 | AAVSO | |
| 1 | 10.1 | 2441503 | 1972-07-04 | 2441508 | 1972-07-09 | -5 | SVO |
| 2 | 2441850 | 1973-06-16 | 2441852 | 1973-06-18 | -2 | AAVSO | |
| 3 | 2442197 | 1974-05-29 | 2442195 | 1974-05-27 | 2 | AAVSO | |
| 4 | 2442540 | 1975-05-07 | 2442539 | 1975-05-06 | 1 | AAVSO | |
| 5 | 2442883 | 1976-04-14 | 2442882 | 1976-04-13 | 1 | AAVSO | |
| 6 | 2443226 | 1977-03-23 | 2443225 | 1977-03-22 | 1 | AAVSO | |
| 7 | 10.3 | 2443555 | 1978-02-15 | 2443569 | 1978-03-01 | -14 | SVO |
| 8 | 2443890 | 1979-01-16 | 2443912 | 1979-02-07 | -22 | AAVSO | |
| 9 | 10.7 | 2444240 | 1980-01-01 | 2444255 | 1980-01-16 | -15 | SVO |
| 10 | 10.6 | 2444578 | 1980-12-04 | 2444599 | 1980-12-25 | -21 | SVO |
| 11 | 10.9 | 2444919 | 1981-11-10 | 2444942 | 1981-12-03 | -23 | SVO |
| 12 | 10.3 | 2445260 | 1982-10-17 | 2445286 | 1982-11-12 | -26 | SVO |
| 13 | 11.0 | 2445611 | 1983-10-03 | 2445629 | 1983-10-21 | -18 | SVO |
| 14 | 10.5 | 2445945 | 1984-09-01 | 2445972 | 1984-09-28 | -27 | SVO |
| 15 | 11.0 | 2446295 | 1985-08-17 | 2446316 | 1985-09-07 | -21 | SVO |
| 16 | 10.5 | 2446637 | 1986-07-25 | 2446659 | 1986-08-16 | -22 | SVO |
| 17 | 10.7 | 2446980 | 1987-07-03 | 2447002 | 1987-07-25 | -22 | SVO |
| 18 | 10.5 | 2447328 | 1988-06-15 | 2447346 | 1988-07-03 | -18 | SVO |
| 19 | 11.5 | 2447667 | 1989-05-20 | 2447689 | 1989-06-11 | -22 | SVO |
| 20 | 10.9 | 2448017 | 1990-05-05 | 2448033 | 1990-05-21 | -16 | SVO |
| 21 | 10.3 | 2448352 | 1991-04-05 | 2448376 | 1991-04-29 | -24 | SVO |
| 22 | 10.4 | 2448692 | 1992-03-10 | 2448719 | 1992-04-06 | -27 | SVO |
| 23 | 10.7 | 2449045 | 1993-02-26 | 2449063 | 1993-03-16 | -18 | SVO |
| 24 | 10.7 | 2449388 | 1994-02-04 | 2449406 | 1994-02-22 | -18 | SVO |
| 25 | 10.3 | 2449728 | 1995-01-10 | 2449750 | 1995-02-01 | -22 | SVO |
| 26 | 11.0 | 2450074 | 1995-12-22 | 2450093 | 1996-01-10 | -19 | SVO |
| 27 | 11.0 | 2450417 | 1996-11-29 | 2450436 | 1996-12-18 | -19 | SVO |
| 28 | 10.2 | 2450754 | 1997-11-01 | 2450780 | 1997-11-27 | -26 | SVO |
| 29 | 10.6 | 2451108 | 1998-10-21 | 2451123 | 1998-11-05 | -15 | SVO |
| 30 | 11.2 | 2451453 | 1999-10-01 | 2451466 | 1999-10-14 | -13 | SVO |
| 31 | 10.7 | 2451797 | 2000-09-09 | 2451810 | 2000-09-22 | -13 | SVO |
| 32 | 11.2 | 2452145 | 2001-08-23 | 2452153 | 2001-08-31 | -8 | SVO |
| 33 | 10.3 | 2452478 | 2002-07-22 | 2452497 | 2002-08-10 | -19 | SVO |
| 34 | 10.6 | 2452827 | 2003-07-06 | 2452840 | 2003-07-19 | -13 | SVO |
| 35 | 10.6 | 2453173 | 2004-06-16 | 2453183 | 2004-06-26 | -10 | SVO |
| 36 | 11.1 | 2453516 | 2005-05-25 | 2453527 | 2005-06-05 | -11 | SVO |
| 37 | 11.0 | 2453859 | 2006-05-03 | 2453870 | 2006-05-14 | -11 | SVO |
| 38 | 2454204 | 2007-04-13 | 2454213 | 2007-04-22 | -9 | AAVSO | |
| 39 | 10.4 | 2454537 | 2008-03-11 | 2454557 | 2008-03-31 | -20 | SVO |
| 40 | 10.5 | 2454875 | 2009-02-12 | 2454900 | 2009-03-09 | -25 | SVO |
| 41 | 10.6 | 2455217 | 2010-01-20 | 2455244 | 2010-02-16 | -27 | SVO |
| 42 | 10.7 | 2455556 | 2010-12-25 | 2455587 | 2011-01-25 | -31 | SVO |
| 43 | 10.4 | 2455893 | 2011-11-27 | 2455930 | 2012-01-03 | -37 | SVO |
| 44 | 10.8 | 2456235 | 2012-11-03 | 2456274 | 2012-12-12 | -39 | SVO |
| 45 | 11.0 | 2456583 | 2013-10-17 | 2456617 | 2013-11-20 | -34 | SVO |
| 46 | 10.5 | 2456922 | 2014-09-21 | 2456960 | 2014-10-29 | -38 | SVO |
| 47 | 10.1 | 2457275 | 2015-09-09 | 2457304 | 2015-10-08 | -29 | SVO |
| 48 | 11.0 | 2457612 | 2016-08-11 | 2457647 | 2016-09-15 | -35 | SVO |
| 49 | 10.1 | 2457949 | 2017-07-14 | 2457991 | 2017-08-25 | -42 | SVO |
| 50 | 10.6 | 2458295 | 2018-06-25 | 2458334 | 2018-08-03 | -39 | SVO |
| 51 | 10.6 | 2458627 | 2019-05-23 | 2458677 | 2019-07-12 | -50 | SVO |
| 52 | 10.0 | 2458965 | 2020-04-25 | 2459021 | 2020-06-20 | -56 | SVO |
| 53 | 10.9 | 2459319 | 2021-04-14 | 2459364 | 2021-05-29 | -45 | SVO |
| 54 | 10.6 | 2459651 | 2022-03-12 | 2459708 | 2022-05-08 | -57 | 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. |