| E | O (JD) | O (dat) | Period |
| -143 | 2401907 | 1864-02-05 | 280.77 |
| -139 | 2403019 | 1867-02-21 | 279.96 |
| -138 | 2403306 | 1867-12-05 | 279.94 |
| -134 | 2404398 | 1870-12-01 | 279.94 |
| -130 | 2405544 | 1874-01-20 | 279.69 |
| -125 | 2406930 | 1877-11-06 | 279.69 |
| -106 | 2412265 | 1892-06-15 | 279.99 |
| -104 | 2412815 | 1893-12-17 | 279.61 |
| -103 | 2413088 | 1894-09-16 | 279 |
| -102 | 2413375 | 1895-06-30 | 278.22 |
| -101 | 2413648 | 1896-03-29 | 275.66 |
| -97 | 2414748 | 1899-04-03 | 275.45 |
| -96 | 2415024 | 1900-01-04 | 274.85 |
| -95 | 2415300 | 1900-10-07 | 274.65 |
| -94 | 2415569 | 1901-07-03 | 275 |
| -93 | 2415843 | 1902-04-03 | 275.07 |
| -92 | 2416117 | 1903-01-02 | 275.14 |
| -91 | 2416399 | 1903-10-11 | 276 |
| -90 | 2416672 | 1904-07-10 | 277.43 |
| -89 | 2416951 | 1905-04-15 | 278.65 |
| -88 | 2417225 | 1906-01-14 | 278.78 |
| -87 | 2417508 | 1906-10-24 | 277.71 |
| -86 | 2417788 | 1907-07-31 | 277.79 |
| -85 | 2418073 | 1908-05-11 | 278.93 |
| -84 | 2418346 | 1909-02-08 | 280.15 |
| -83 | 2418613 | 1909-11-02 | 278.92 |
| -82 | 2418899 | 1910-08-15 | 277.35 |
| -81 | 2419182 | 1911-05-25 | 276.68 |
| -80 | 2419473 | 1912-03-11 | 276.63 |
| -79 | 2419728 | 1912-11-21 | 276.71 |
| -75 | 2420848 | 1915-12-16 | 275.62 |
| -72 | 2421658 | 1918-03-05 | 274.58 |
| -71 | 2421940 | 1918-12-12 | 275.13 |
| -70 | 2422213 | 1919-09-11 | 276.19 |
| -69 | 2422483 | 1920-06-07 | 276.38 |
| -68 | 2422762 | 1921-03-13 | 276.14 |
| -67 | 2423042 | 1921-12-18 | 276 |
| -66 | 2423334 | 1922-10-06 | 276.65 |
| -65 | 2423594 | 1923-06-23 | 277.22 |
| -64 | 2423870 | 1924-03-25 | 276.79 |
| -63 | 2424147 | 1924-12-27 | 275.28 |
| -62 | 2424422 | 1925-09-28 | 276.07 |
| -61 | 2424704 | 1926-07-07 | 277.57 |
| -60 | 2424975 | 1927-04-04 | 278.22 |
| -59 | 2425255 | 1928-01-09 | 278.93 |
| -58 | 2425538 | 1928-10-18 | 278.71 |
| -57 | 2425812 | 1929-07-19 | 279 |
| -56 | 2426100 | 1930-05-03 | 279.57 |
| -55 | 2426374 | 1931-02-01 | 279 |
| -54 | 2426654 | 1931-11-08 | 278.79 |
| -53 | 2426931 | 1932-08-11 | 278.85 |
| -52 | 2427213 | 1933-05-20 | 279.07 |
| -51 | 2427486 | 1934-02-17 | 279.29 |
| -50 | 2427767 | 1934-11-25 | 279.43 |
| -49 | 2428049 | 1935-09-03 | 280 |
| -48 | 2428332 | 1936-06-12 | 279.78 |
| -47 | 2428606 | 1937-03-13 | 279.42 |
| -46 | 2428891 | 1937-12-23 | 279.57 |
| -45 | 2429173 | 1938-10-01 | 279.65 |
| -44 | 2429443 | 1939-06-28 | 279.22 |
| -43 | 2429722 | 1940-04-02 | 278.78 |
| -42 | 2430008 | 1941-01-13 | 278.28 |
| -41 | 2430288 | 1941-10-20 | 278.5 |
| -40 | 2430559 | 1942-07-18 | 279.15 |
| -39 | 2430841 | 1943-04-26 | 278.29 |
| -38 | 2431119 | 1944-01-29 | 277.21 |
| -37 | 2431396 | 1944-11-01 | 278.14 |
| -36 | 2431677 | 1945-08-09 | 279.43 |
| -35 | 2431949 | 1946-05-08 | 279.65 |
| -34 | 2432228 | 1947-02-11 | 279.93 |
| -33 | 2432513 | 1947-11-23 | 279.64 |
| -32 | 2432799 | 1948-09-04 | 279.42 |
| -31 | 2433076 | 1949-06-08 | 280.22 |
| -30 | 2433358 | 1950-03-17 | 280.5 |
| -29 | 2433630 | 1950-12-14 | 279.5 |
| -28 | 2433908 | 1951-09-18 | 278.71 |
| -27 | 2434192 | 1952-06-28 | 277.42 |
| -26 | 2434476 | 1953-04-08 | 277.43 |
| -25 | 2434749 | 1954-01-06 | 278.57 |
| -24 | 2435028 | 1954-10-12 | 278.07 |
| -23 | 2435290 | 1955-07-01 | 277.64 |
| -22 | 2435582 | 1956-04-18 | 278.21 |
| -21 | 2435856 | 1957-01-17 | 278.36 |
| -20 | 2436137 | 1957-10-25 | 278.5 |
| -19 | 2436418 | 1958-08-02 | 279 |
| -18 | 2436702 | 1959-05-13 | 278.71 |
| -17 | 2436972 | 1960-02-07 | 278.78 |
| -16 | 2437245 | 1960-11-06 | 278.57 |
| -15 | 2437533 | 1961-08-21 | 278.36 |
| -14 | 2437807 | 1962-05-22 | 278.79 |
| -13 | 2438089 | 1963-02-28 | 278.92 |
| -12 | 2438366 | 1963-12-02 | 278.78 |
| -11 | 2438651 | 1964-09-12 | 278.5 |
| -10 | 2438926 | 1965-06-14 | 278.07 |
| -9 | 2439196 | 1966-03-11 | 277.5 |
| -8 | 2439485 | 1966-12-25 | 276.71 |
| -7 | 2439754 | 1967-09-20 | 276.85 |
| -6 | 2440035 | 1968-06-27 | 277.72 |
| -5 | 2440305 | 1969-03-24 | 277.15 |
| -4 | 2440586 | 1969-12-30 | 277.29 |
| -3 | 2440867 | 1970-10-07 | 277.5 |
| -2 | 2441143 | 1971-07-10 | 276.78 |
| -1 | 2441418 | 1972-04-10 | 277.22 |
| 0 | 2441703 | 1973-01-20 | 277.43 |
| 1 | 2441971 | 1973-10-15 | 277.79 |
| 2 | 2442244 | 1974-07-15 | 278.07 |
| 3 | 2442528 | 1975-04-25 | 277.28 |
| 4 | 2442809 | 1976-01-31 | 277.07 |
| 5 | 2443090 | 1976-11-07 | 277.57 |
| 6 | 2443364 | 1977-08-08 | 277.65 |
| 7 | 2443639 | 1978-05-10 | 277.21 |
| 8 | 2443914 | 1979-02-09 | 276.85 |
| 9 | 2444187 | 1979-11-09 | 277.36 |
| 10 | 2444472 | 1980-08-20 | 277.79 |
| 11 | 2444746 | 1981-05-21 | 277.79 |
| 12 | 2445029 | 1982-02-28 | 278.71 |
| 13 | 2445308 | 1982-12-04 | 279.35 |
| 14 | 2445584 | 1983-09-06 | 279.36 |
| 15 | 2445858 | 1984-06-06 | 279 |
| 16 | 2446145 | 1985-03-20 | 278.43 |
| 17 | 2446425 | 1985-12-25 | 279.57 |
| 18 | 2446704 | 1986-09-30 | 280.07 |
| 19 | 2446977 | 1987-06-30 | 278.36 |
| 20 | 2447258 | 1988-04-06 | 277.07 |
| 21 | 2447548 | 1989-01-21 | 277.15 |
| 22 | 2447815 | 1989-10-15 | 277.57 |
| 23 | 2448085 | 1990-07-12 | 276.78 |
| 24 | 2448364 | 1991-04-17 | 274.5 |
| 25 | 2448645 | 1992-01-23 | 274.36 |
| 26 | 2448922 | 1992-10-26 | 276.43 |
| 27 | 2449188 | 1993-07-19 | 277.5 |
| 28 | 2449461 | 1994-04-18 | 277.64 |
| 29 | 2449743 | 1995-01-25 | 277.72 |
| 30 | 2450027 | 1995-11-05 | 277.93 |
| 31 | 2450307 | 1996-08-11 | 278.72 |
| 32 | 2450589 | 1997-05-20 | 279.78 |
| 33 | 2450866 | 1998-02-21 | 280.21 |
| 34 | 2451135 | 1998-11-17 | 280.36 |
| 35 | 2451416 | 1999-08-25 | 280.72 |
| 36 | 2451705 | 2000-06-09 | 281.43 |
| 37 | 2451988 | 2001-03-19 | 282.57 |
| 38 | 2452271 | 2001-12-27 | 282.57 |
| 39 | 2452555 | 2002-10-07 | 281.72 |
| 40 | 2452840 | 2003-07-19 | 281.36 |
| 41 | 2453117 | 2004-04-21 | 281.36 |
| 42 | 2453390 | 2005-01-19 | 281.64 |
| 43 | 2453675 | 2005-10-31 | 281.35 |
| 44 | 2453957 | 2006-08-09 | 281.07 |
| 45 | 2454241 | 2007-05-20 | 281.07 |
| 46 | 2454528 | 2008-03-02 | 281.22 |
| 47 | 2454806 | 2008-12-05 | 281.78 |
| 48 | 2455086 | 2009-09-11 | 282.07 |
| 49 | 2455356 | 2010-06-08 | 281.72 |
| 50 | 2455646 | 2011-03-25 | 281.93 |
| 51 | 2455931 | 2012-01-04 | 281.65 |
| 52 | 2456216 | 2012-10-15 | 281.64 |
| 53 | 2456497 | 2013-07-23 | 282.07 |
| 54 | 2456784 | 2014-05-06 | 280.15 |
| 55 | 2457051 | 2015-01-28 | 278.43 |
| 56 | 2457334 | 2015-11-07 | 278.65 |
| 57 | 2457617 | 2016-08-16 | 278.64 |
| 58 | 2457882 | 2017-05-08 | 278.42 |
| 59 | 2458163 | 2018-02-13 | 279.07 |
| 60 | 2458451 | 2018-11-28 | 279.07 |
| 61 | 2458731 | 2019-09-04 | 280.07 |
| 62 | 2459002 | 2020-06-01 | 281.52 |
| 63 | 2459290 | 2021-03-16 | 280.45 |
| 64 | 2459568 | 2021-12-19 | 279.01 |
| 65 | 2459852 | 2022-09-29 | 278.82 |
| 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. |