| E | O (JD) | O (dat) | Period |
| -85 | 2411151 | 1889-05-28 | 330.25 |
| -79 | 2413140 | 1894-11-07 | 330.56 |
| -78 | 2413472 | 1895-10-05 | 331.43 |
| -77 | 2413791 | 1896-08-19 | 331.8 |
| -76 | 2414123 | 1897-07-17 | 332.26 |
| -75 | 2414455 | 1898-06-14 | 332.36 |
| -74 | 2414793 | 1899-05-18 | 332.96 |
| -73 | 2415140 | 1900-04-30 | 333.42 |
| -69 | 2416459 | 1903-12-10 | 333.97 |
| -68 | 2416800 | 1904-11-15 | 334.24 |
| -67 | 2417127 | 1905-10-08 | 334.36 |
| -66 | 2417460 | 1906-09-06 | 333.57 |
| -65 | 2417800 | 1907-08-12 | 333.32 |
| -64 | 2418137 | 1908-07-14 | 333.86 |
| -63 | 2418477 | 1909-06-19 | 333.38 |
| -62 | 2418810 | 1910-05-18 | 333.42 |
| -57 | 2420460 | 1914-11-23 | 333.4 |
| -56 | 2420800 | 1915-10-29 | 333.12 |
| -55 | 2421142 | 1916-10-05 | 333.03 |
| -54 | 2421460 | 1917-08-19 | 332.82 |
| -53 | 2421803 | 1918-07-28 | 332.68 |
| -52 | 2422142 | 1919-07-02 | 332.56 |
| -50 | 2422802 | 1921-04-22 | 332.12 |
| -49 | 2423137 | 1922-03-23 | 331.99 |
| -48 | 2423463 | 1923-02-12 | 332.38 |
| -47 | 2423789 | 1924-01-04 | 332.04 |
| -46 | 2424120 | 1924-11-30 | 332.25 |
| -45 | 2424460 | 1925-11-05 | 332.67 |
| -44 | 2424794 | 1926-10-05 | 332.74 |
| -43 | 2425129 | 1927-09-05 | 333.37 |
| -42 | 2425461 | 1928-08-02 | 333.95 |
| -41 | 2425796 | 1929-07-03 | 334.15 |
| -40 | 2426124 | 1930-05-27 | 334.42 |
| -39 | 2426454 | 1931-04-22 | 334.33 |
| -38 | 2426795 | 1932-03-28 | 334.85 |
| -37 | 2427134 | 1933-03-02 | 335.35 |
| -36 | 2427469 | 1934-01-31 | 335.51 |
| -35 | 2427809 | 1935-01-06 | 335.7 |
| -34 | 2428131 | 1935-11-24 | 335.81 |
| -33 | 2428478 | 1936-11-05 | 335.65 |
| -32 | 2428812 | 1937-10-05 | 335.38 |
| -31 | 2429143 | 1938-09-01 | 335.56 |
| -30 | 2429478 | 1939-08-02 | 335.86 |
| -29 | 2429819 | 1940-07-08 | 336.06 |
| -28 | 2430156 | 1941-06-10 | 335.69 |
| -27 | 2430485 | 1942-05-05 | 335.96 |
| -26 | 2430826 | 1943-04-11 | 336.25 |
| -25 | 2431165 | 1944-03-15 | 336 |
| -24 | 2431494 | 1945-02-07 | 335.56 |
| -23 | 2431832 | 1946-01-11 | 335.7 |
| -22 | 2432170 | 1946-12-15 | 336.09 |
| -21 | 2432508 | 1947-11-18 | 335.95 |
| -20 | 2432838 | 1948-10-13 | 336.23 |
| -19 | 2433171 | 1949-09-11 | 336.54 |
| -18 | 2433513 | 1950-08-19 | 336.2 |
| -17 | 2433853 | 1951-07-25 | 335.97 |
| -16 | 2434186 | 1952-06-22 | 335.96 |
| -15 | 2434526 | 1953-05-28 | 336.31 |
| -14 | 2434860 | 1954-04-27 | 335.77 |
| -13 | 2435190 | 1955-03-23 | 334.94 |
| -12 | 2435526 | 1956-02-22 | 334.53 |
| -11 | 2435864 | 1957-01-25 | 334.07 |
| -10 | 2436205 | 1958-01-01 | 333.75 |
| -9 | 2436529 | 1958-11-21 | 333.59 |
| -8 | 2436861 | 1959-10-19 | 333.47 |
| -7 | 2437198 | 1960-09-20 | 333 |
| -6 | 2437526 | 1961-08-14 | 332.82 |
| -5 | 2437864 | 1962-07-18 | 332.62 |
| -4 | 2438195 | 1963-06-14 | 333.25 |
| -3 | 2438529 | 1964-05-13 | 333.55 |
| -2 | 2438859 | 1965-04-08 | 333.53 |
| -1 | 2439196 | 1966-03-11 | 334.13 |
| 0 | 2439524 | 1967-02-02 | 334.44 |
| 1 | 2439865 | 1968-01-09 | 335.07 |
| 2 | 2440201 | 1968-12-10 | 335.43 |
| 3 | 2440530 | 1969-11-04 | 335.83 |
| 4 | 2440873 | 1970-10-13 | 335.94 |
| 5 | 2441208 | 1971-09-13 | 336.09 |
| 6 | 2441546 | 1972-08-16 | 335.86 |
| 7 | 2441879 | 1973-07-15 | 335.71 |
| 8 | 2442216 | 1974-06-17 | 335.75 |
| 9 | 2442551 | 1975-05-18 | 335.36 |
| 10 | 2442886 | 1976-04-17 | 335.35 |
| 11 | 2443222 | 1977-03-19 | 335.15 |
| 12 | 2443554 | 1978-02-14 | 335.05 |
| 13 | 2443893 | 1979-01-19 | 335.08 |
| 14 | 2444227 | 1979-12-19 | 335.27 |
| 15 | 2444563 | 1980-11-19 | 335.15 |
| 16 | 2444895 | 1981-10-17 | 334.75 |
| 17 | 2445229 | 1982-09-16 | 334.66 |
| 18 | 2445569 | 1983-08-22 | 334.35 |
| 19 | 2445906 | 1984-07-24 | 334.43 |
| 20 | 2446235 | 1985-06-18 | 334.03 |
| 21 | 2446564 | 1986-05-13 | 334.35 |
| 22 | 2446903 | 1987-04-17 | 334.11 |
| 23 | 2447236 | 1988-03-15 | 333.53 |
| 24 | 2447574 | 1989-02-16 | 333.04 |
| 25 | 2447899 | 1990-01-07 | 333.13 |
| 26 | 2448246 | 1990-12-20 | 333.29 |
| 27 | 2448572 | 1991-11-11 | 332.8 |
| 28 | 2448899 | 1992-10-03 | 332.92 |
| 29 | 2449227 | 1993-08-27 | 333.26 |
| 30 | 2449567 | 1994-08-02 | 333.83 |
| 31 | 2449906 | 1995-07-07 | 333.98 |
| 32 | 2450231 | 1996-05-27 | 334.65 |
| 33 | 2450571 | 1997-05-02 | 335.94 |
| 34 | 2450910 | 1998-04-06 | 336.62 |
| 35 | 2451244 | 1999-03-06 | 336.61 |
| 36 | 2451579 | 2000-02-04 | 337.04 |
| 37 | 2451910 | 2000-12-31 | 337.37 |
| 38 | 2452265 | 2001-12-21 | 336.96 |
| 39 | 2452598 | 2002-11-19 | 336.69 |
| 40 | 2452929 | 2003-10-16 | 336.26 |
| 41 | 2453271 | 2004-09-22 | 335.9 |
| 42 | 2453603 | 2005-08-20 | 335.88 |
| 43 | 2453936 | 2006-07-19 | 335.49 |
| 44 | 2454272 | 2007-06-20 | 335.67 |
| 45 | 2454602 | 2008-05-15 | 334.01 |
| 46 | 2454941 | 2009-04-19 | 332.99 |
| 47 | 2455286 | 2010-03-30 | 332.75 |
| 48 | 2455622 | 2011-03-01 | 332.14 |
| 49 | 2455951 | 2012-01-24 | 331.88 |
| 50 | 2456248 | 2012-11-16 | 331.86 |
| 51 | 2456595 | 2013-10-29 | 331.67 |
| 52 | 2456935 | 2014-10-04 | 331.91 |
| 53 | 2457261 | 2015-08-26 | 332.88 |
| 54 | 2457601 | 2016-07-31 | 333.96 |
| 55 | 2457936 | 2017-07-01 | 334.6 |
| 56 | 2458269 | 2018-05-30 | 333.17 |
| 57 | 2458605 | 2019-05-01 | 332.81 |
| 58 | 2458940 | 2020-03-31 | 332.75 |
| 59 | 2459270 | 2021-02-24 | 331.9 |
| 60 | 2459595 | 2022-01-15 | 331.25 |
| 61 | 2459922 | 2022-12-08 | 330.43 |
| 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. |