| E | Mag | O (JD) | O (dat) | C (JD) | C (Dat) | O-C | Source |
| -66 | 2415390 | 1901-01-05 | 2415446 | 1901-03-02 | -56 | SVO | |
| -65 | 2415820 | 1902-03-11 | 2415862 | 1902-04-22 | -42 | SVO | |
| -59 | 2418327 | 1909-01-20 | 2418355 | 1909-02-17 | -28 | AN, 1935, vol 255, p 173 | |
| -58 | 2418742 | 1910-03-11 | 2418770 | 1910-04-08 | -28 | AN, 1935, vol 255, p 173 | |
| -54 | 2420430 | 1914-10-24 | 2420432 | 1914-10-26 | -2 | SVO | |
| -53 | 2420820 | 1915-11-18 | 2420848 | 1915-12-16 | -28 | SVO | |
| -52 | 2421260 | 1917-01-31 | 2421263 | 1917-02-03 | -3 | SVO | |
| -51 | 2421660 | 1918-03-07 | 2421679 | 1918-03-26 | -19 | SVO | |
| -48 | 2422940 | 1921-09-07 | 2422925 | 1921-08-23 | 15 | SVO | |
| -47 | 2423360 | 1922-11-01 | 2423341 | 1922-10-13 | 19 | SVO | |
| -46 | 2423770 | 1923-12-16 | 2423756 | 1923-12-02 | 14 | SVO | |
| -40 | 2426270 | 1930-10-20 | 2426249 | 1930-09-29 | 21 | SVO | |
| -39 | 2426666 | 1931-11-20 | 2426664 | 1931-11-18 | 2 | SVO | |
| -38 | 2427065 | 1932-12-23 | 2427080 | 1933-01-07 | -15 | AN, 1935, vol 255, p 173 | |
| -37 | 2427480 | 1934-02-11 | 2427495 | 1934-02-26 | -15 | SVO | |
| -33 | 2429160 | 1938-09-18 | 2429157 | 1938-09-15 | 3 | SVO | |
| -32 | 2429576 | 1939-11-08 | 2429573 | 1939-11-05 | 3 | AN, 1942, vol 272, p 228 | |
| -31 | 2429999 | 1941-01-04 | 2429988 | 1940-12-24 | 11 | SVO | |
| -30 | 2430410 | 1942-02-19 | 2430404 | 1942-02-13 | 6 | SVO | |
| -26 | 2432100 | 1946-10-06 | 2432066 | 1946-09-02 | 34 | SVO | |
| -25 | 2432509 | 1947-11-19 | 2432481 | 1947-10-22 | 28 | SVO | |
| -24 | 2432918 | 1949-01-01 | 2432897 | 1948-12-11 | 21 | SVO | |
| -12 | 2437924 | 1962-09-16 | 2437882 | 1962-08-05 | 42 | MitVS, 1977, vol 8, p 50 | |
| -10 | 2438784 | 1965-01-23 | 2438713 | 1964-11-13 | 71 | MitVS, 1977, vol 8, p 50 | |
| -9 | 2439176 | 1966-02-19 | 2439129 | 1966-01-03 | 47 | MitVS, 1977, vol 8, p 50 | |
| -8 | 2439581 | 1967-03-31 | 2439544 | 1967-02-22 | 37 | MitVS, 1977, vol 8, p 50 | |
| -7 | 2439999 | 1968-05-22 | 2439960 | 1968-04-13 | 39 | MitVS, 1977, vol 8, p 50 | |
| -3 | 2441630 | 1972-11-08 | 2441622 | 1972-10-31 | 8 | SVO | |
| -2 | 2442040 | 1973-12-23 | 2442037 | 1973-12-20 | 3 | SVO | |
| -1 | 10.7 | 2442429 | 1975-01-16 | 2442453 | 1975-02-09 | -24 | SVO |
| 0 | 10.6 | 2442853 | 1976-03-15 | 2442868 | 1976-03-30 | -15 | SVO |
| 4 | 2444530 | 1980-10-17 | 2444530 | 1980-10-17 | 0 | SVO | |
| 5 | 10.2 | 2444959 | 1981-12-20 | 2444946 | 1981-12-07 | 13 | SVO |
| 6 | 10.0 | 2445380 | 1983-02-14 | 2445361 | 1983-01-26 | 19 | SVO |
| 7 | 9.9 | 2445781 | 1984-03-21 | 2445777 | 1984-03-17 | 4 | SVO |
| 8 | 10.0 | 2446199 | 1985-05-13 | 2446192 | 1985-05-06 | 7 | SVO |
| 9 | 2446615 | 1986-07-03 | 2446608 | 1986-06-26 | 7 | SVO | |
| 10 | 10.1 | 2447026 | 1987-08-18 | 2447023 | 1987-08-15 | 3 | SVO |
| 11 | 10.1 | 2447443 | 1988-10-08 | 2447438 | 1988-10-03 | 5 | SVO |
| 12 | 10.0 | 2447865 | 1989-12-04 | 2447854 | 1989-11-23 | 11 | SVO |
| 13 | 10.0 | 2448284 | 1991-01-27 | 2448269 | 1991-01-12 | 15 | SVO |
| 14 | 9.5 | 2448694 | 1992-03-12 | 2448685 | 1992-03-03 | 9 | SVO |
| 15 | 10.3 | 2449111 | 1993-05-03 | 2449100 | 1993-04-22 | 11 | SVO |
| 16 | 9.8 | 2449502 | 1994-05-29 | 2449516 | 1994-06-12 | -14 | SVO |
| 17 | 10.1 | 2449938 | 1995-08-08 | 2449931 | 1995-08-01 | 7 | SVO |
| 18 | 9.9 | 2450336 | 1996-09-09 | 2450347 | 1996-09-20 | -11 | SVO |
| 19 | 10.2 | 2450758 | 1997-11-05 | 2450762 | 1997-11-09 | -4 | SVO |
| 20 | 10.1 | 2451179 | 1998-12-31 | 2451178 | 1998-12-30 | 1 | SVO |
| 21 | 10.2 | 2451584 | 2000-02-09 | 2451593 | 2000-02-18 | -9 | SVO |
| 22 | 10.3 | 2451993 | 2001-03-24 | 2452009 | 2001-04-09 | -16 | SVO |
| 23 | 10.3 | 2452413 | 2002-05-18 | 2452424 | 2002-05-29 | -11 | SVO |
| 24 | 10.0 | 2452839 | 2003-07-18 | 2452840 | 2003-07-19 | -1 | SVO |
| 25 | 9.9 | 2453246 | 2004-08-28 | 2453255 | 2004-09-06 | -9 | SVO |
| 26 | 9.5 | 2453650 | 2005-10-06 | 2453671 | 2005-10-27 | -21 | SVO |
| 27 | 8.9 | 2454043 | 2006-11-03 | 2454086 | 2006-12-16 | -43 | SVO |
| 28 | 9.4 | 2454481 | 2008-01-15 | 2454502 | 2008-02-05 | -21 | SVO |
| 29 | 9.0 | 2454879 | 2009-02-16 | 2454917 | 2009-03-26 | -38 | SVO |
| 30 | 9.3 | 2455322 | 2010-05-05 | 2455333 | 2010-05-16 | -11 | SVO |
| 31 | 8.8 | 2455742 | 2011-06-29 | 2455748 | 2011-07-05 | -6 | SVO |
| 32 | 9.1 | 2456189 | 2012-09-18 | 2456164 | 2012-08-24 | 25 | SVO |
| 33 | 2456580 | 2013-10-14 | 2456579 | 2013-10-13 | 1 | SVO | |
| 34 | 8.9 | 2456991 | 2014-11-29 | 2456995 | 2014-12-03 | -4 | SVO |
| 35 | 8.6 | 2457389 | 2016-01-01 | 2457410 | 2016-01-22 | -21 | SVO |
| 36 | 8.9 | 2457820 | 2017-03-07 | 2457826 | 2017-03-13 | -6 | SVO |
| 37 | 8.8 | 2458245 | 2018-05-06 | 2458241 | 2018-05-02 | 4 | SVO |
| 38 | 8.7 | 2458688 | 2019-07-23 | 2458656 | 2019-06-21 | 32 | SVO |
| 39 | 9.2 | 2459093 | 2020-08-31 | 2459072 | 2020-08-10 | 21 | SVO |
| 40 | 8.9 | 2459511 | 2021-10-23 | 2459487 | 2021-09-29 | 24 | SVO |
| 41 | 8.8 | 2459929 | 2022-12-15 | 2459903 | 2022-11-19 | 26 | 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. |