| E | O (JD) | O (dat) | Period |
| -102 | 2410251 | 1886-12-10 | 319.79 |
| -99 | 2411209 | 1889-07-25 | 320.89 |
| -92 | 2413429 | 1895-08-23 | 321.72 |
| -91 | 2413764 | 1896-07-23 | 320.91 |
| -90 | 2414082 | 1897-06-06 | 319.93 |
| -88 | 2414737 | 1899-03-23 | 320.09 |
| -87 | 2415054 | 1900-02-03 | 320.31 |
| -86 | 2415383 | 1900-12-29 | 319.37 |
| -85 | 2415675 | 1901-10-17 | 318.27 |
| -84 | 2416005 | 1902-09-12 | 315 |
| -83 | 2416313 | 1903-07-17 | 313.7 |
| -82 | 2416643 | 1904-06-11 | 314.85 |
| -81 | 2416950 | 1905-04-14 | 316.67 |
| -77 | 2418196 | 1908-09-11 | 316.57 |
| -76 | 2418515 | 1909-07-27 | 316.36 |
| -75 | 2418840 | 1910-06-17 | 315.68 |
| -70 | 2420440 | 1914-11-03 | 315.84 |
| -69 | 2420742 | 1915-09-01 | 315.83 |
| -68 | 2421072 | 1916-07-27 | 314.96 |
| -67 | 2421360 | 1917-05-11 | 313.85 |
| -65 | 2421998 | 1919-02-08 | 312.76 |
| -64 | 2422293 | 1919-11-30 | 313.38 |
| -63 | 2422621 | 1920-10-23 | 313.99 |
| -62 | 2422936 | 1921-09-03 | 315.13 |
| -61 | 2423250 | 1922-07-14 | 317.36 |
| -60 | 2423578 | 1923-06-07 | 318.29 |
| -59 | 2423878 | 1924-04-02 | 317.86 |
| -58 | 2424207 | 1925-02-25 | 318.99 |
| -57 | 2424527 | 1926-01-11 | 318.85 |
| -56 | 2424843 | 1926-11-23 | 320 |
| -55 | 2425164 | 1927-10-10 | 320.22 |
| -54 | 2425488 | 1928-08-29 | 318.5 |
| -53 | 2425804 | 1929-07-11 | 320.35 |
| -52 | 2426132 | 1930-06-04 | 321.93 |
| -51 | 2426436 | 1931-04-04 | 321.58 |
| -50 | 2426757 | 1932-02-19 | 322.58 |
| -49 | 2427098 | 1933-01-25 | 323.36 |
| -48 | 2427416 | 1933-12-09 | 324.49 |
| -47 | 2427738 | 1934-10-27 | 325.71 |
| -46 | 2428070 | 1935-09-24 | 323.93 |
| -45 | 2428393 | 1936-08-12 | 321.65 |
| -44 | 2428718 | 1937-07-03 | 320.36 |
| -43 | 2429035 | 1938-05-16 | 318.56 |
| -42 | 2429355 | 1939-04-01 | 317 |
| -41 | 2429662 | 1940-02-02 | 316.01 |
| -40 | 2429977 | 1940-12-13 | 315.65 |
| -39 | 2430291 | 1941-10-23 | 316.01 |
| -38 | 2430610 | 1942-09-07 | 317 |
| -37 | 2430925 | 1943-07-19 | 318.42 |
| -36 | 2431247 | 1944-06-05 | 318 |
| -35 | 2431567 | 1945-04-21 | 316.44 |
| -34 | 2431888 | 1946-03-08 | 316.5 |
| -33 | 2432209 | 1947-01-23 | 317.42 |
| -32 | 2432511 | 1947-11-21 | 317.06 |
| -31 | 2432820 | 1948-09-25 | 315.79 |
| -30 | 2433146 | 1949-08-17 | 314.36 |
| -29 | 2433470 | 1950-07-07 | 314.64 |
| -28 | 2433783 | 1951-05-16 | 315.71 |
| -27 | 2434093 | 1952-03-21 | 316.21 |
| -26 | 2434405 | 1953-01-27 | 316.36 |
| -25 | 2434720 | 1953-12-08 | 316.94 |
| -24 | 2435031 | 1954-10-15 | 318.57 |
| -23 | 2435362 | 1955-09-11 | 319.78 |
| -22 | 2435683 | 1956-07-28 | 320.21 |
| -21 | 2436007 | 1957-06-17 | 319.72 |
| -20 | 2436329 | 1958-05-05 | 318.08 |
| -19 | 2436646 | 1959-03-18 | 315.57 |
| -18 | 2436962 | 1960-01-28 | 314.21 |
| -17 | 2437265 | 1960-11-26 | 313.85 |
| -16 | 2437581 | 1961-10-08 | 313.5 |
| -15 | 2437882 | 1962-08-05 | 313.44 |
| -14 | 2438207 | 1963-06-26 | 314.14 |
| -13 | 2438523 | 1964-05-07 | 315.56 |
| -12 | 2438841 | 1965-03-21 | 317.21 |
| -11 | 2439155 | 1966-01-29 | 317.15 |
| -10 | 2439470 | 1966-12-10 | 315.86 |
| -9 | 2439794 | 1967-10-30 | 315.44 |
| -8 | 2440110 | 1968-09-10 | 314.93 |
| -7 | 2440419 | 1969-07-16 | 314.56 |
| -6 | 2440733 | 1970-05-26 | 313.86 |
| -5 | 2441047 | 1971-04-05 | 314.15 |
| -4 | 2441358 | 1972-02-10 | 314.86 |
| -3 | 2441671 | 1972-12-19 | 315.64 |
| -2 | 2441987 | 1973-10-31 | 317.42 |
| -1 | 2442315 | 1974-09-24 | 319.07 |
| 0 | 2442622 | 1975-07-28 | 320.29 |
| 1 | 2442949 | 1976-06-19 | 321.65 |
| 2 | 2443275 | 1977-05-11 | 320.79 |
| 3 | 2443597 | 1978-03-29 | 320.85 |
| 4 | 2443916 | 1979-02-11 | 322.07 |
| 5 | 2444245 | 1980-01-06 | 321.15 |
| 6 | 2444548 | 1980-11-04 | 320.79 |
| 7 | 2444881 | 1981-10-03 | 321.06 |
| 8 | 2445199 | 1982-08-17 | 320.85 |
| 9 | 2445521 | 1983-07-05 | 322.43 |
| 10 | 2445842 | 1984-05-21 | 322.86 |
| 11 | 2446166 | 1985-04-10 | 322.58 |
| 12 | 2446487 | 1986-02-25 | 324.07 |
| 13 | 2446820 | 1987-01-24 | 323.92 |
| 14 | 2447129 | 1987-11-29 | 323.29 |
| 15 | 2447467 | 1988-11-01 | 322.94 |
| 16 | 2447790 | 1989-09-20 | 322.64 |
| 17 | 2448108 | 1990-08-04 | 323.71 |
| 18 | 2448426 | 1991-06-18 | 323.78 |
| 19 | 2448748 | 1992-05-05 | 322.21 |
| 20 | 2449076 | 1993-03-29 | 321.72 |
| 21 | 2449405 | 1994-02-21 | 322.51 |
| 22 | 2449724 | 1995-01-06 | 323.86 |
| 23 | 2450044 | 1995-11-22 | 323.64 |
| 24 | 2450358 | 1996-10-01 | 322.71 |
| 25 | 2450691 | 1997-08-30 | 321.58 |
| 26 | 2451017 | 1998-07-22 | 319.07 |
| 27 | 2451338 | 1999-06-08 | 319.06 |
| 28 | 2451661 | 2000-04-26 | 319.35 |
| 29 | 2451970 | 2001-03-01 | 317.29 |
| 30 | 2452265 | 2001-12-21 | 315.94 |
| 31 | 2452604 | 2002-11-25 | 313.51 |
| 32 | 2452916 | 2003-10-03 | 312.71 |
| 33 | 2453234 | 2004-08-16 | 314.49 |
| 34 | 2453544 | 2005-06-22 | 313.57 |
| 35 | 2453844 | 2006-04-18 | 311.72 |
| 36 | 2454165 | 2007-03-05 | 311.64 |
| 37 | 2454473 | 2008-01-07 | 311.49 |
| 38 | 2454786 | 2008-11-15 | 312.99 |
| 39 | 2455098 | 2009-09-23 | 313.86 |
| 40 | 2455415 | 2010-08-06 | 313.94 |
| 41 | 2455724 | 2011-06-11 | 315.22 |
| 42 | 2456046 | 2012-04-28 | 316.79 |
| 43 | 2456357 | 2013-03-05 | 317.71 |
| 44 | 2456676 | 2014-01-18 | 318.5 |
| 45 | 2456996 | 2014-12-04 | 318.79 |
| 46 | 2457323 | 2015-10-27 | 319.43 |
| 47 | 2457638 | 2016-09-06 | 320.49 |
| 48 | 2457960 | 2017-07-25 | 320.64 |
| 49 | 2458273 | 2018-06-03 | 320.29 |
| 50 | 2458602 | 2019-04-28 | 319.01 |
| 51 | 2458918 | 2020-03-09 | 318.69 |
| 52 | 2459243 | 2021-01-28 | 320.42 |
| 53 | 2459560 | 2021-12-11 | 319.83 |
| 54 | 2459867 | 2022-10-14 | 318 |
| 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. |