| E | Mag | O (JD) | O (dat) | C (JD) | C (Dat) | O-C | Source |
| -46 | 2415680 | 1901-10-22 | 2414813 | 1899-06-07 | 867 | SVO | |
| -41 | 2418680 | 1910-01-08 | 2417946 | 1908-01-05 | 734 | SVO | |
| -39 | 2419795 | 1913-01-27 | 2419198 | 1911-06-10 | 597 | GuL, 1918, 1.1 | |
| -37 | 2420850 | 1915-12-18 | 2420451 | 1914-11-14 | 399 | SVO | |
| -35 | 2421980 | 1919-01-21 | 2421704 | 1918-04-20 | 276 | SVO | |
| -33 | 2423030 | 1921-12-06 | 2422957 | 1921-09-24 | 73 | SVO | |
| -32 | 2423630 | 1923-07-29 | 2423583 | 1923-06-12 | 47 | SVO | |
| -31 | 2424140 | 1924-12-20 | 2424210 | 1925-02-28 | -70 | SVO | |
| -30 | 2424720 | 1926-07-23 | 2424836 | 1926-11-16 | -116 | SVO | |
| -28 | 2425930 | 1929-11-14 | 2426089 | 1930-04-22 | -159 | SVO | |
| -27 | 2426520 | 1931-06-27 | 2426716 | 1932-01-09 | -196 | SVO | |
| -26 | 2427096 | 1933-01-23 | 2427342 | 1933-09-26 | -246 | AN, 1934, vol 252, p 269 | |
| -25 | 10.5 | 2427725 | 1934-10-14 | 2427968 | 1935-06-14 | -243 | SVO |
| -24 | 2428315 | 1936-05-26 | 2428595 | 1937-03-02 | -280 | AN, 1948, vol 276, p 11 | |
| -23 | 2428968 | 1938-03-10 | 2429221 | 1938-11-18 | -253 | AN, 1948, vol 276, p 11 | |
| -22 | 2429580 | 1939-11-12 | 2429848 | 1940-08-06 | -268 | SVO | |
| -21 | 2430230 | 1941-08-23 | 2430474 | 1942-04-24 | -244 | SVO | |
| -19 | 2431450 | 1944-12-25 | 2431727 | 1945-09-28 | -277 | SVO | |
| -18 | 2432110 | 1946-10-16 | 2432353 | 1947-06-16 | -243 | SVO | |
| -17 | 2432740 | 1948-07-07 | 2432980 | 1949-03-04 | -240 | SVO | |
| -15 | 2433970 | 1951-11-19 | 2434233 | 1952-08-08 | -263 | SVO | |
| -11 | 2436510 | 1958-11-02 | 2436738 | 1959-06-18 | -228 | SVO | |
| -5 | 11.2 | 2440177 | 1968-11-16 | 2440497 | 1969-10-02 | -320 | SVO |
| -4 | 2440810 | 1970-08-11 | 2441123 | 1971-06-20 | -313 | JRASC, 1971, vol 65, p 93 | |
| -3 | 10.6 | 2441451 | 1972-05-13 | 2441750 | 1973-03-08 | -299 | SVO |
| -2 | 10.9 | 2442104 | 1974-02-25 | 2442376 | 1974-11-24 | -272 | SVO |
| -1 | 11.8 | 2442719 | 1975-11-02 | 2443003 | 1976-08-12 | -284 | SVO |
| 0 | 11.6 | 2443406 | 1977-09-19 | 2443629 | 1978-04-30 | -223 | SVO |
| 2 | 10.6 | 2444756 | 1981-05-31 | 2444882 | 1981-10-04 | -126 | SVO |
| 3 | 11.0 | 2445407 | 1983-03-13 | 2445508 | 1983-06-22 | -101 | SVO |
| 4 | 11.6 | 2446046 | 1984-12-11 | 2446135 | 1985-03-10 | -89 | SVO |
| 5 | 10.8 | 2446720 | 1986-10-16 | 2446761 | 1986-11-26 | -41 | SVO |
| 6 | 12.0 | 2447376 | 1988-08-02 | 2447388 | 1988-08-14 | -12 | SVO |
| 7 | 11.0 | 2448006 | 1990-04-24 | 2448014 | 1990-05-02 | -8 | SVO |
| 8 | 10.8 | 2448634 | 1992-01-12 | 2448641 | 1992-01-19 | -7 | SVO |
| 9 | 11.5 | 2449267 | 1993-10-06 | 2449267 | 1993-10-06 | 0 | SVO |
| 10 | 11.1 | 2449914 | 1995-07-15 | 2449893 | 1995-06-24 | 21 | SVO |
| 11 | 11.3 | 2450571 | 1997-05-02 | 2450520 | 1997-03-12 | 51 | SVO |
| 12 | 11.2 | 2451191 | 1999-01-12 | 2451146 | 1998-11-28 | 45 | SVO |
| 13 | 10.5 | 2451869 | 2000-11-20 | 2451773 | 2000-08-16 | 96 | SVO |
| 14 | 11.9 | 2452511 | 2002-08-24 | 2452399 | 2002-05-04 | 112 | SVO |
| 15 | 11.2 | 2453153 | 2004-05-27 | 2453026 | 2004-01-21 | 127 | SVO |
| 16 | 11.8 | 2453800 | 2006-03-05 | 2453652 | 2005-10-08 | 148 | SVO |
| 17 | 11.5 | 2454451 | 2007-12-16 | 2454278 | 2007-06-26 | 173 | SVO |
| 18 | 11.0 | 2455099 | 2009-09-24 | 2454905 | 2009-03-14 | 194 | SVO |
| 19 | 12.2 | 2455757 | 2011-07-14 | 2455531 | 2010-11-30 | 226 | SVO |
| 20 | 11.2 | 2456380 | 2013-03-28 | 2456158 | 2012-08-18 | 222 | SVO |
| 21 | 11.7 | 2457045 | 2015-01-22 | 2456784 | 2014-05-06 | 261 | SVO |
| 22 | 11.6 | 2457637 | 2016-09-05 | 2457411 | 2016-01-23 | 226 | SVO |
| 23 | 11.5 | 2458247 | 2018-05-08 | 2458037 | 2017-10-10 | 210 | SVO |
| 24 | 11.2 | 2458838 | 2019-12-20 | 2458663 | 2019-06-28 | 175 | SVO |
| 25 | 11.1 | 2459435 | 2021-08-08 | 2459290 | 2021-03-16 | 145 | 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. |