| E | O (JD) | O (dat) | Period |
| -86 | 2415040 | 1900-01-20 | 354.99 |
| -83 | 2416100 | 1902-12-16 | 350 |
| -82 | 2416440 | 1903-11-21 | 346.28 |
| -81 | 2416800 | 1904-11-15 | 350.86 |
| -80 | 2417160 | 1905-11-10 | 352.69 |
| -79 | 2417480 | 1906-09-26 | 353.93 |
| -78 | 2417837 | 1907-09-18 | 352 |
| -77 | 2418209 | 1908-09-24 | 349.93 |
| -76 | 2418574 | 1909-09-24 | 353.36 |
| -75 | 2418921 | 1910-09-06 | 356.5 |
| -74 | 2419247 | 1911-07-29 | 354.43 |
| -73 | 2419612 | 1912-07-28 | 351.14 |
| -72 | 2419975 | 1913-07-26 | 351.14 |
| -71 | 2420333 | 1914-07-19 | 354.64 |
| -70 | 2420675 | 1915-06-26 | 356.43 |
| -69 | 2421024 | 1916-06-09 | 355.5 |
| -68 | 2421387 | 1917-06-07 | 353.5 |
| -67 | 2421746 | 1918-06-01 | 353.43 |
| -66 | 2422103 | 1919-05-24 | 354.07 |
| -65 | 2422461 | 1920-05-16 | 354.5 |
| -64 | 2422796 | 1921-04-16 | 355.29 |
| -63 | 2423160 | 1922-04-15 | 353.64 |
| -62 | 2423496 | 1923-03-17 | 352.71 |
| -61 | 2423878 | 1924-04-02 | 354.5 |
| -60 | 2424229 | 1925-03-19 | 354.79 |
| -59 | 2424571 | 1926-02-24 | 354.71 |
| -58 | 2424931 | 1927-02-19 | 353.29 |
| -57 | 2425289 | 1928-02-12 | 350.14 |
| -56 | 2425634 | 1929-01-22 | 351.14 |
| -55 | 2425988 | 1930-01-11 | 351.86 |
| -54 | 2426332 | 1930-12-21 | 351.07 |
| -53 | 2426677 | 1931-12-01 | 351.64 |
| -52 | 2427039 | 1932-11-27 | 351.64 |
| -51 | 2427389 | 1933-11-12 | 352.57 |
| -50 | 2427746 | 1934-11-04 | 354.71 |
| -49 | 2428100 | 1935-10-24 | 354.86 |
| -48 | 2428445 | 1936-10-03 | 354.21 |
| -47 | 2428811 | 1937-10-04 | 354.14 |
| -46 | 2429164 | 1938-09-22 | 354.43 |
| -45 | 2429520 | 1939-09-13 | 355.21 |
| -44 | 2429867 | 1940-08-25 | 355.21 |
| -43 | 2430226 | 1941-08-19 | 354.5 |
| -42 | 2430582 | 1942-08-10 | 354.93 |
| -41 | 2430936 | 1943-07-30 | 356 |
| -40 | 2431293 | 1944-07-21 | 356.71 |
| -39 | 2431645 | 1945-07-08 | 355.86 |
| -38 | 2432008 | 1946-07-06 | 355 |
| -37 | 2432363 | 1947-06-26 | 354.78 |
| -36 | 2432724 | 1948-06-21 | 354.49 |
| -35 | 2433066 | 1949-05-29 | 353.92 |
| -34 | 2433422 | 1950-05-20 | 353.21 |
| -33 | 2433774 | 1951-05-07 | 352.71 |
| -32 | 2434127 | 1952-04-24 | 352.78 |
| -31 | 2434481 | 1953-04-13 | 353.28 |
| -30 | 2434835 | 1954-04-02 | 354.43 |
| -29 | 2435190 | 1955-03-23 | 355.36 |
| -28 | 2435539 | 1956-03-06 | 354.71 |
| -27 | 2435895 | 1957-02-25 | 355.94 |
| -26 | 2436263 | 1958-02-28 | 357.51 |
| -25 | 2436613 | 1959-02-13 | 357.29 |
| -24 | 2436961 | 1960-01-27 | 357.36 |
| -23 | 2437338 | 1961-02-07 | 356.65 |
| -22 | 2437692 | 1962-01-27 | 355.08 |
| -21 | 2438039 | 1963-01-09 | 354.93 |
| -20 | 2438398 | 1964-01-03 | 354.49 |
| -19 | 2438753 | 1964-12-23 | 353.86 |
| -18 | 2439094 | 1965-11-29 | 354.64 |
| -17 | 2439449 | 1966-11-19 | 354.35 |
| -16 | 2439813 | 1967-11-18 | 353.78 |
| -15 | 2440171 | 1968-11-10 | 354.71 |
| -14 | 2440525 | 1969-10-30 | 356 |
| -13 | 2440873 | 1970-10-13 | 355.5 |
| -12 | 2441231 | 1971-10-06 | 355.42 |
| -11 | 2441582 | 1972-09-21 | 356.79 |
| -10 | 2441945 | 1973-09-19 | 356.65 |
| -9 | 2442294 | 1974-09-03 | 356.65 |
| -8 | 2442666 | 1975-09-10 | 357.51 |
| -7 | 2443025 | 1976-09-03 | 358.01 |
| -6 | 2443366 | 1977-08-10 | 357.94 |
| -5 | 2443731 | 1978-08-10 | 356.72 |
| -4 | 2444087 | 1979-08-01 | 356.07 |
| -3 | 2444452 | 1980-07-31 | 357.71 |
| -2 | 2444798 | 1981-07-12 | 358.57 |
| -1 | 2445156 | 1982-07-05 | 357.21 |
| 0 | 2445520 | 1983-07-04 | 355.43 |
| 1 | 2445879 | 1984-06-27 | 356.07 |
| 2 | 2446238 | 1985-06-21 | 357.93 |
| 3 | 2446581 | 1986-05-30 | 358 |
| 4 | 2446934 | 1987-05-18 | 357.93 |
| 5 | 2447301 | 1988-05-19 | 357.64 |
| 6 | 2447664 | 1989-05-17 | 356.79 |
| 7 | 2448024 | 1990-05-12 | 355.93 |
| 8 | 2448386 | 1991-05-09 | 355.29 |
| 9 | 2448738 | 1992-04-25 | 353.86 |
| 10 | 2449076 | 1993-03-29 | 352.14 |
| 11 | 2449422 | 1994-03-10 | 351.36 |
| 12 | 2449787 | 1995-03-10 | 350.29 |
| 13 | 2450132 | 1996-02-18 | 350.79 |
| 14 | 2450486 | 1997-02-06 | 351.86 |
| 15 | 2450843 | 1998-01-29 | 351.64 |
| 16 | 2451185 | 1999-01-06 | 351.57 |
| 17 | 2451540 | 1999-12-27 | 351.14 |
| 18 | 2451884 | 2000-12-05 | 350.21 |
| 19 | 2452248 | 2001-12-04 | 350.71 |
| 20 | 2452593 | 2002-11-14 | 350.56 |
| 21 | 2452941 | 2003-10-28 | 350.85 |
| 22 | 2453291 | 2004-10-12 | 350.64 |
| 23 | 2453647 | 2005-10-03 | 349.56 |
| 24 | 2453986 | 2006-09-07 | 350.5 |
| 25 | 2454350 | 2007-09-06 | 350.5 |
| 26 | 2454691 | 2008-08-12 | 349.43 |
| 27 | 2455044 | 2009-07-31 | 350.5 |
| 28 | 2455397 | 2010-07-19 | 351.79 |
| 29 | 2455742 | 2011-06-29 | 351.5 |
| 30 | 2456088 | 2012-06-09 | 352.07 |
| 31 | 2456452 | 2013-06-08 | 353.21 |
| 32 | 2456809 | 2014-05-31 | 353.5 |
| 33 | 2457153 | 2015-05-10 | 354 |
| 34 | 2457511 | 2016-05-02 | 354.57 |
| 35 | 2457875 | 2017-05-01 | 353.5 |
| 36 | 2458213 | 2018-04-04 | 353.64 |
| 37 | 2458573 | 2019-03-30 | 354.37 |
| 38 | 2458931 | 2020-03-22 | 352.29 |
| 39 | 2459279 | 2021-03-05 | 353.42 |
| 40 | 2459634 | 2022-02-23 | 356.49 |
| E | Cycle number from the GCVS4 epoch. |
| O (JD) | Julian date at observed time for maximum. |
| O (Dat) | Same as above, expressed as date. |
| Period | Calculated mean period at cycle number E. |