| E | O (JD) | O (dat) | Period |
| -205 | 2372405 | 1783-04-28 | 359.04 |
| -160 | 2388491 | 1827-05-14 | 359.08 |
| -159 | 2388851 | 1828-05-08 | 358.81 |
| -155 | 2390268 | 1832-03-25 | 357.95 |
| -144 | 2394249 | 1843-02-17 | 357.93 |
| -143 | 2394610 | 1844-02-13 | 358.16 |
| -138 | 2396390 | 1848-12-28 | 358.19 |
| -134 | 2397808 | 1852-11-15 | 357.2 |
| -133 | 2398165 | 1853-11-07 | 354.57 |
| -131 | 2398876 | 1855-10-19 | 353.77 |
| -130 | 2399227 | 1856-10-04 | 353.4 |
| -129 | 2399578 | 1857-09-20 | 353.06 |
| -128 | 2399918 | 1858-08-26 | 352.63 |
| -127 | 2400280 | 1859-08-23 | 351.89 |
| -125 | 2400986 | 1861-07-29 | 352.22 |
| -123 | 2401695 | 1863-07-08 | 353.83 |
| -122 | 2402046 | 1864-06-23 | 354.72 |
| -121 | 2402391 | 1865-06-03 | 354.76 |
| -120 | 2402754 | 1866-06-01 | 355 |
| -119 | 2403111 | 1867-05-24 | 356.07 |
| -118 | 2403472 | 1868-05-19 | 357.28 |
| -117 | 2403825 | 1869-05-07 | 358.07 |
| -116 | 2404181 | 1870-04-28 | 357.57 |
| -115 | 2404545 | 1871-04-27 | 355.85 |
| -114 | 2404894 | 1872-04-10 | 355.42 |
| -113 | 2405264 | 1873-04-15 | 356.28 |
| -112 | 2405607 | 1874-03-24 | 356.65 |
| -111 | 2405958 | 1875-03-10 | 356.72 |
| -110 | 2406315 | 1876-03-01 | 356.22 |
| -109 | 2406679 | 1877-02-28 | 356.07 |
| -108 | 2407040 | 1878-02-24 | 357.28 |
| -107 | 2407393 | 1879-02-12 | 358.4 |
| -106 | 2407752 | 1880-02-06 | 358.05 |
| -105 | 2408104 | 1881-01-23 | 357.07 |
| -104 | 2408463 | 1882-01-17 | 357.28 |
| -102 | 2409186 | 1884-01-10 | 357.31 |
| -96 | 2411327 | 1889-11-20 | 357.34 |
| -92 | 2412747 | 1893-10-10 | 357.1 |
| -91 | 2413119 | 1894-10-17 | 356.75 |
| -90 | 2413460 | 1895-09-23 | 357.26 |
| -89 | 2413831 | 1896-09-28 | 357.74 |
| -88 | 2414163 | 1897-08-26 | 357 |
| -86 | 2414902 | 1899-09-04 | 357.12 |
| -85 | 2415257 | 1900-08-25 | 357.06 |
| -84 | 2415614 | 1901-08-17 | 357.81 |
| -83 | 2415964 | 1902-08-02 | 358.13 |
| -82 | 2416329 | 1903-08-02 | 356.21 |
| -81 | 2416675 | 1904-07-13 | 356.57 |
| -80 | 2417044 | 1905-07-17 | 356.72 |
| -79 | 2417393 | 1906-07-01 | 356.58 |
| -78 | 2417753 | 1907-06-26 | 356.93 |
| -77 | 2418110 | 1908-06-17 | 357.5 |
| -76 | 2418462 | 1909-06-04 | 357.21 |
| -75 | 2418823 | 1910-05-31 | 355.71 |
| -74 | 2419178 | 1911-05-21 | 355.07 |
| -73 | 2419546 | 1912-05-23 | 356.85 |
| -72 | 2419892 | 1913-05-04 | 356.71 |
| -71 | 2420234 | 1914-04-11 | 356.29 |
| -70 | 2420600 | 1915-04-12 | 357.37 |
| -69 | 2420968 | 1916-04-14 | 357.36 |
| -68 | 2421311 | 1917-03-23 | 359 |
| -67 | 2421678 | 1918-03-25 | 360 |
| -66 | 2422049 | 1919-03-31 | 358.85 |
| -65 | 2422392 | 1920-03-08 | 360 |
| -64 | 2422760 | 1921-03-11 | 360.57 |
| -63 | 2423114 | 1922-02-28 | 358.64 |
| -62 | 2423478 | 1923-02-27 | 358.65 |
| -61 | 2423841 | 1924-02-25 | 358.51 |
| -60 | 2424196 | 1925-02-14 | 357.58 |
| -59 | 2424552 | 1926-02-05 | 356.79 |
| -58 | 2424910 | 1927-01-29 | 355.28 |
| -57 | 2425261 | 1928-01-15 | 355.64 |
| -56 | 2425619 | 1929-01-07 | 355.71 |
| -55 | 2425968 | 1929-12-22 | 355.14 |
| -54 | 2426325 | 1930-12-14 | 356 |
| -53 | 2426691 | 1931-12-15 | 356.85 |
| -52 | 2427037 | 1932-11-25 | 357.5 |
| -51 | 2427397 | 1933-11-20 | 357.22 |
| -50 | 2427758 | 1934-11-16 | 356.44 |
| -49 | 2428118 | 1935-11-11 | 357.22 |
| -48 | 2428474 | 1936-11-01 | 357.86 |
| -47 | 2428820 | 1937-10-13 | 356.57 |
| -46 | 2429186 | 1938-10-14 | 356.07 |
| -45 | 2429543 | 1939-10-06 | 356.5 |
| -44 | 2429901 | 1940-09-28 | 357.07 |
| -43 | 2430246 | 1941-09-08 | 357.14 |
| -42 | 2430615 | 1942-09-12 | 356.35 |
| -41 | 2430968 | 1943-08-31 | 355.93 |
| -40 | 2431325 | 1944-08-22 | 356.3 |
| -39 | 2431681 | 1945-08-13 | 356.01 |
| -38 | 2432037 | 1946-08-04 | 355 |
| -37 | 2432390 | 1947-07-23 | 355.64 |
| -36 | 2432745 | 1948-07-12 | 356 |
| -35 | 2433100 | 1949-07-02 | 355.14 |
| -34 | 2433453 | 1950-06-20 | 355.64 |
| -33 | 2433819 | 1951-06-21 | 356.21 |
| -32 | 2434171 | 1952-06-07 | 355.42 |
| -31 | 2434519 | 1953-05-21 | 355.65 |
| -30 | 2434887 | 1954-05-24 | 355.37 |
| -29 | 2435235 | 1955-05-07 | 354.22 |
| -28 | 2435586 | 1956-04-22 | 355.29 |
| -27 | 2435946 | 1957-04-17 | 356.5 |
| -26 | 2436301 | 1958-04-07 | 355.85 |
| -25 | 2436648 | 1959-03-20 | 355.28 |
| -24 | 2437016 | 1960-03-22 | 355.71 |
| -23 | 2437381 | 1961-03-22 | 356.42 |
| -22 | 2437723 | 1962-02-27 | 356.64 |
| -21 | 2438072 | 1963-02-11 | 354.86 |
| -20 | 2438440 | 1964-02-14 | 352.51 |
| -19 | 2438797 | 1965-02-05 | 352.43 |
| -18 | 2439145 | 1966-01-19 | 353 |
| -17 | 2439487 | 1966-12-27 | 352.42 |
| -16 | 2439845 | 1967-12-20 | 351 |
| -15 | 2440193 | 1968-12-02 | 350.92 |
| -14 | 2440544 | 1969-11-18 | 352.78 |
| -13 | 2440902 | 1970-11-11 | 353.14 |
| -12 | 2441249 | 1971-10-24 | 353.36 |
| -11 | 2441606 | 1972-10-15 | 354.15 |
| -10 | 2441965 | 1973-10-09 | 353.94 |
| -9 | 2442311 | 1974-09-20 | 354.29 |
| -8 | 2442674 | 1975-09-18 | 354.71 |
| -7 | 2443021 | 1976-08-30 | 355.14 |
| -6 | 2443380 | 1977-08-24 | 356.85 |
| -5 | 2443731 | 1978-08-10 | 357.07 |
| -4 | 2444090 | 1979-08-04 | 356.42 |
| -3 | 2444453 | 1980-08-01 | 357 |
| -2 | 2444819 | 1981-08-02 | 357.43 |
| -1 | 2445165 | 1982-07-14 | 357.15 |
| 0 | 2445520 | 1983-07-04 | 355.87 |
| 1 | 2445879 | 1984-06-27 | 354.3 |
| 2 | 2446236 | 1985-06-19 | 354.36 |
| 3 | 2446585 | 1986-06-03 | 355.85 |
| 4 | 2446940 | 1987-05-24 | 356.28 |
| 5 | 2447292 | 1988-05-10 | 355.28 |
| 6 | 2447653 | 1989-05-06 | 354.85 |
| 7 | 2448014 | 1990-05-02 | 355.71 |
| 8 | 2448373 | 1991-04-26 | 356.28 |
| 9 | 2448716 | 1992-04-03 | 356.29 |
| 10 | 2449073 | 1993-03-26 | 355.44 |
| 11 | 2449432 | 1994-03-20 | 355.08 |
| 12 | 2449788 | 1995-03-11 | 357 |
| 13 | 2450145 | 1996-03-02 | 358.35 |
| 14 | 2450498 | 1997-02-18 | 356.07 |
| 15 | 2450860 | 1998-02-15 | 355.07 |
| 16 | 2451227 | 1999-02-17 | 356.07 |
| 17 | 2451579 | 2000-02-04 | 356 |
| 18 | 2451911 | 2001-01-01 | 355.85 |
| 19 | 2452280 | 2002-01-05 | 353.43 |
| 20 | 2452638 | 2002-12-29 | 352.15 |
| 21 | 2452989 | 2003-12-15 | 353.07 |
| 22 | 2453351 | 2004-12-11 | 352.85 |
| 23 | 2453684 | 2005-11-09 | 352.42 |
| 24 | 2454052 | 2006-11-12 | 353.07 |
| 25 | 2454381 | 2007-10-07 | 353.42 |
| 26 | 2454750 | 2008-10-10 | 353.5 |
| 27 | 2455102 | 2009-09-27 | 353.78 |
| 28 | 2455468 | 2010-09-28 | 354.43 |
| 29 | 2455820 | 2011-09-15 | 354.58 |
| 30 | 2456164 | 2012-08-24 | 353.94 |
| 31 | 2456525 | 2013-08-20 | 353.36 |
| 32 | 2456870 | 2014-07-31 | 352.14 |
| 33 | 2457225 | 2015-07-21 | 352.42 |
| 34 | 2457582 | 2016-07-12 | 352.92 |
| 35 | 2457935 | 2017-06-30 | 354.07 |
| 36 | 2458283 | 2018-06-13 | 355.35 |
| 37 | 2458635 | 2019-05-31 | 354.82 |
| 38 | 2458995 | 2020-05-25 | 353.74 |
| 39 | 2459357 | 2021-05-22 | 355.34 |
| 40 | 2459713 | 2022-05-13 | 356.81 |
| 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. |