| E | O (JD) | O (dat) | Period |
| -92 | 2410008 | 1886-04-11 | 337.47 |
| -86 | 2412031 | 1891-10-25 | 336.95 |
| -85 | 2412356 | 1892-09-14 | 336.42 |
| -84 | 2412695 | 1893-08-19 | 337.11 |
| -83 | 2413038 | 1894-07-28 | 336.2 |
| -82 | 2413371 | 1895-06-26 | 335.13 |
| -81 | 2413708 | 1896-05-28 | 335.38 |
| -80 | 2414056 | 1897-05-11 | 335.29 |
| -74 | 2416052 | 1902-10-29 | 334.54 |
| -73 | 2416378 | 1903-09-20 | 334 |
| -72 | 2416722 | 1904-08-29 | 334 |
| -71 | 2417058 | 1905-07-31 | 335.08 |
| -70 | 2417380 | 1906-06-18 | 335.96 |
| -69 | 2417715 | 1907-05-19 | 335.77 |
| -68 | 2418065 | 1908-05-03 | 335.77 |
| -61 | 2420420 | 1914-10-14 | 336.42 |
| -60 | 2420745 | 1915-09-04 | 336.5 |
| -59 | 2421085 | 1916-08-09 | 335.4 |
| -58 | 2421425 | 1917-07-15 | 333.88 |
| -57 | 2421760 | 1918-06-15 | 332.89 |
| -54 | 2422757 | 1921-03-08 | 332.44 |
| -53 | 2423085 | 1922-01-30 | 332 |
| -52 | 2423413 | 1922-12-24 | 331.84 |
| -51 | 2423744 | 1923-11-20 | 331.25 |
| -50 | 2424070 | 1924-10-11 | 331.57 |
| -49 | 2424416 | 1925-09-22 | 332.07 |
| -48 | 2424742 | 1926-08-14 | 331.93 |
| -47 | 2425075 | 1927-07-13 | 333 |
| -46 | 2425409 | 1928-06-11 | 334.22 |
| -45 | 2425738 | 1929-05-06 | 334.72 |
| -44 | 2426066 | 1930-03-30 | 334.86 |
| -43 | 2426410 | 1931-03-09 | 334.5 |
| -42 | 2426755 | 1932-02-17 | 334.57 |
| -41 | 2427089 | 1933-01-16 | 334.71 |
| -40 | 2427416 | 1933-12-09 | 332.86 |
| -39 | 2427751 | 1934-11-09 | 330.42 |
| -38 | 2428080 | 1935-10-04 | 330.71 |
| -37 | 2428410 | 1936-08-29 | 332 |
| -36 | 2428726 | 1937-07-11 | 331.79 |
| -35 | 2429065 | 1938-06-15 | 330.4 |
| -34 | 2429409 | 1939-05-25 | 330.29 |
| -33 | 2429744 | 1940-04-24 | 332.44 |
| -32 | 2430068 | 1941-03-14 | 334 |
| -30 | 2430719 | 1942-12-25 | 333 |
| -28 | 2431386 | 1944-10-22 | 332.16 |
| -27 | 2431734 | 1945-10-05 | 333.05 |
| -26 | 2432069 | 1946-09-05 | 335.24 |
| -25 | 2432399 | 1947-08-01 | 336.94 |
| -24 | 2432733 | 1948-06-30 | 336.36 |
| -23 | 2433074 | 1949-06-06 | 335.07 |
| -22 | 2433412 | 1950-05-10 | 335.5 |
| -21 | 2433747 | 1951-04-10 | 336.5 |
| -20 | 2434082 | 1952-03-10 | 336 |
| -19 | 2434412 | 1953-02-03 | 335.5 |
| -18 | 2434753 | 1954-01-10 | 336.07 |
| -17 | 2435090 | 1954-12-13 | 336.64 |
| -16 | 2435421 | 1955-11-09 | 337.64 |
| -15 | 2435762 | 1956-10-15 | 337.22 |
| -14 | 2436102 | 1957-09-20 | 336.5 |
| -13 | 2436440 | 1958-08-24 | 337.22 |
| -12 | 2436781 | 1959-07-31 | 337.49 |
| -11 | 2437105 | 1960-06-19 | 337.64 |
| -10 | 2437449 | 1961-05-29 | 337.86 |
| -9 | 2437783 | 1962-04-28 | 336.57 |
| -8 | 2438125 | 1963-04-05 | 335.35 |
| -7 | 2438466 | 1964-03-11 | 335.86 |
| -6 | 2438806 | 1965-02-14 | 336.64 |
| -5 | 2439127 | 1966-01-01 | 336.22 |
| -4 | 2439454 | 1966-11-24 | 334.29 |
| -3 | 2439802 | 1967-11-07 | 332.64 |
| -2 | 2440143 | 1968-10-13 | 332.86 |
| -1 | 2440472 | 1969-09-07 | 333.64 |
| 0 | 2440799 | 1970-07-31 | 332.72 |
| 1 | 2441130 | 1971-06-27 | 331.07 |
| 2 | 2441463 | 1972-05-25 | 330.07 |
| 3 | 2441789 | 1973-04-16 | 330.79 |
| 4 | 2442125 | 1974-03-18 | 331.22 |
| 5 | 2442455 | 1975-02-11 | 331.43 |
| 6 | 2442781 | 1976-01-03 | 331.86 |
| 7 | 2443121 | 1976-12-08 | 331.22 |
| 8 | 2443445 | 1977-10-28 | 331.28 |
| 9 | 2443788 | 1978-10-06 | 331.57 |
| 10 | 2444110 | 1979-08-24 | 330.64 |
| 11 | 2444441 | 1980-07-20 | 331.35 |
| 12 | 2444777 | 1981-06-21 | 332.07 |
| 13 | 2445101 | 1982-05-11 | 331.29 |
| 14 | 2445430 | 1983-04-05 | 331.29 |
| 15 | 2445775 | 1984-03-15 | 330.72 |
| 16 | 2446107 | 1985-02-10 | 331.29 |
| 17 | 2446429 | 1985-12-29 | 332.72 |
| 18 | 2446760 | 1986-11-25 | 332.57 |
| 19 | 2447088 | 1987-10-19 | 332.22 |
| 20 | 2447428 | 1988-09-23 | 333.72 |
| 21 | 2447761 | 1989-08-22 | 335.92 |
| 22 | 2448100 | 1990-07-27 | 336.92 |
| 23 | 2448433 | 1991-06-25 | 337.07 |
| 24 | 2448775 | 1992-06-01 | 337.43 |
| 25 | 2449117 | 1993-05-09 | 338.29 |
| 26 | 2449448 | 1994-04-05 | 339.07 |
| 27 | 2449787 | 1995-03-10 | 339 |
| 28 | 2450126 | 1996-02-12 | 338.29 |
| 29 | 2450471 | 1997-01-22 | 338.93 |
| 30 | 2450809 | 1997-12-26 | 339 |
| 31 | 2451145 | 1998-11-27 | 337.43 |
| 32 | 2451483 | 1999-10-31 | 336.57 |
| 33 | 2451827 | 2000-10-09 | 335.43 |
| 34 | 2452154 | 2001-09-01 | 334 |
| 35 | 2452483 | 2002-07-27 | 333.79 |
| 36 | 2452826 | 2003-07-05 | 332.36 |
| 37 | 2453150 | 2004-05-24 | 331 |
| 38 | 2453480 | 2005-04-19 | 332.28 |
| 39 | 2453821 | 2006-03-26 | 332.42 |
| 40 | 2454142 | 2007-02-10 | 331.72 |
| 41 | 2454473 | 2008-01-07 | 333.14 |
| 42 | 2454816 | 2008-12-15 | 333.92 |
| 43 | 2455147 | 2009-11-11 | 334.64 |
| 44 | 2455473 | 2010-10-03 | 335.07 |
| 45 | 2455821 | 2011-09-16 | 335.22 |
| 46 | 2456155 | 2012-08-15 | 336.79 |
| 47 | 2456493 | 2013-07-19 | 337.93 |
| 48 | 2456813 | 2014-06-04 | 339 |
| 49 | 2457169 | 2015-05-26 | 340.07 |
| 50 | 2457509 | 2016-04-30 | 340.07 |
| 51 | 2457842 | 2017-03-29 | 341.36 |
| 52 | 2458198 | 2018-03-20 | 341.79 |
| 53 | 2458539 | 2019-02-24 | 340.22 |
| 54 | 2458870 | 2020-01-21 | 341.13 |
| 55 | 2459215 | 2020-12-31 | 340.86 |
| 56 | 2459552 | 2021-12-03 | 337.68 |
| 57 | 2459889 | 2022-11-05 | 337.01 |
| 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. |