| E | O (JD) | O (dat) | Period |
| -67 | 2412970 | 1894-05-21 | 404.04 |
| -66 | 2413376 | 1895-07-01 | 404.39 |
| -65 | 2413781 | 1896-08-09 | 404.02 |
| -63 | 2414590 | 1898-10-27 | 403.92 |
| -62 | 2414986 | 1899-11-27 | 403.29 |
| -61 | 2415398 | 1901-01-13 | 402.89 |
| -60 | 2415804 | 1902-02-23 | 402.38 |
| -58 | 2416605 | 1904-05-04 | 401.7 |
| -57 | 2417010 | 1905-06-13 | 400.87 |
| -56 | 2417400 | 1906-07-08 | 400.73 |
| -55 | 2417802 | 1907-08-14 | 400.58 |
| -54 | 2418205 | 1908-09-20 | 400.66 |
| -53 | 2418600 | 1909-10-20 | 401 |
| -47 | 2421005 | 1916-05-21 | 401.18 |
| -46 | 2421410 | 1917-06-30 | 401.42 |
| -45 | 2421815 | 1918-08-09 | 401.68 |
| -44 | 2422217 | 1919-09-15 | 401.56 |
| -43 | 2422624 | 1920-10-26 | 401.71 |
| -42 | 2423021 | 1921-11-27 | 401.55 |
| -41 | 2423418 | 1922-12-29 | 400.46 |
| -40 | 2423832 | 1924-02-16 | 399.24 |
| -39 | 2424216 | 1925-03-06 | 398.3 |
| -38 | 2424622 | 1926-04-16 | 397.41 |
| -37 | 2425024 | 1927-05-23 | 397.07 |
| -36 | 2425411 | 1928-06-13 | 396.13 |
| -35 | 2425803 | 1929-07-10 | 395.18 |
| -34 | 2426202 | 1930-08-13 | 395.45 |
| -33 | 2426598 | 1931-09-13 | 394.8 |
| -32 | 2426998 | 1932-10-17 | 394.63 |
| -31 | 2427383 | 1933-11-06 | 394.91 |
| -30 | 2427779 | 1934-12-07 | 395.2 |
| -29 | 2428181 | 1936-01-13 | 395.26 |
| -28 | 2428570 | 1937-02-05 | 395.14 |
| -27 | 2428964 | 1938-03-06 | 395.35 |
| -26 | 2429360 | 1939-04-06 | 396.06 |
| -25 | 2429763 | 1940-05-13 | 396.6 |
| -24 | 2430158 | 1941-06-12 | 397.43 |
| -23 | 2430546 | 1942-07-05 | 397.93 |
| -22 | 2430947 | 1943-08-10 | 398.4 |
| -21 | 2431348 | 1944-09-14 | 399.47 |
| -20 | 2431752 | 1945-10-23 | 399.92 |
| -19 | 2432157 | 1946-12-02 | 401.12 |
| -18 | 2432543 | 1947-12-23 | 401.96 |
| -17 | 2432948 | 1949-01-31 | 402.35 |
| -16 | 2433364 | 1950-03-23 | 402.38 |
| -15 | 2433755 | 1951-04-18 | 402.82 |
| -14 | 2434167 | 1952-06-03 | 402.77 |
| -13 | 2434566 | 1953-07-07 | 402.96 |
| -12 | 2434972 | 1954-08-17 | 403.1 |
| -11 | 2435368 | 1955-09-17 | 402.74 |
| -10 | 2435780 | 1956-11-02 | 403.13 |
| -9 | 2436171 | 1957-11-28 | 402.83 |
| -8 | 2436574 | 1959-01-05 | 402.89 |
| -7 | 2436993 | 1960-02-28 | 402.75 |
| -6 | 2437386 | 1961-03-27 | 402.45 |
| -5 | 2437791 | 1962-05-06 | 401.27 |
| -4 | 2438192 | 1963-06-11 | 400.55 |
| -3 | 2438593 | 1964-07-16 | 399.78 |
| -2 | 2438995 | 1965-08-22 | 398.81 |
| -1 | 2439390 | 1966-09-21 | 399.08 |
| 0 | 2439779 | 1967-10-15 | 399.03 |
| 1 | 2440177 | 1968-11-16 | 399.1 |
| 2 | 2440586 | 1969-12-30 | 399.2 |
| 3 | 2440981 | 1971-01-29 | 399.4 |
| 4 | 2441387 | 1972-03-10 | 399.95 |
| 5 | 2441787 | 1973-04-14 | 400.29 |
| 6 | 2442184 | 1974-05-16 | 399.86 |
| 7 | 2442582 | 1975-06-18 | 399.34 |
| 8 | 2442981 | 1976-07-21 | 399.7 |
| 9 | 2443384 | 1977-08-28 | 399.87 |
| 10 | 2443783 | 1978-10-01 | 399.53 |
| 11 | 2444178 | 1979-10-31 | 399.68 |
| 12 | 2444578 | 1980-12-04 | 399.6 |
| 13 | 2444987 | 1982-01-17 | 399.79 |
| 14 | 2445389 | 1983-02-23 | 399.95 |
| 15 | 2445772 | 1984-03-12 | 400.15 |
| 16 | 2446180 | 1985-04-24 | 400.31 |
| 17 | 2446577 | 1986-05-26 | 400.19 |
| 18 | 2446984 | 1987-07-07 | 400.48 |
| 19 | 2447385 | 1988-08-11 | 400.9 |
| 20 | 2447783 | 1989-09-13 | 401.19 |
| 21 | 2448183 | 1990-10-18 | 401.25 |
| 22 | 2448583 | 1991-11-22 | 401.19 |
| 23 | 2448993 | 1993-01-05 | 400.75 |
| 24 | 2449388 | 1994-02-04 | 401.45 |
| 25 | 2449783 | 1995-03-06 | 401.93 |
| 26 | 2450197 | 1996-04-23 | 402.21 |
| 27 | 2450590 | 1997-05-21 | 402.05 |
| 28 | 2450987 | 1998-06-22 | 402.24 |
| 29 | 2451406 | 1999-08-15 | 403.15 |
| 30 | 2451804 | 2000-09-16 | 403.13 |
| 31 | 2452206 | 2001-10-23 | 403.19 |
| 32 | 2452601 | 2002-11-22 | 403.08 |
| 33 | 2453012 | 2004-01-07 | 402.66 |
| 34 | 2453422 | 2005-02-20 | 401.82 |
| 35 | 2453813 | 2006-03-18 | 401.81 |
| 36 | 2454226 | 2007-05-05 | 401.69 |
| 37 | 2454614 | 2008-05-27 | 401.64 |
| 38 | 2455019 | 2009-07-06 | 401.12 |
| 39 | 2455419 | 2010-08-10 | 401.1 |
| 40 | 2455821 | 2011-09-16 | 401.69 |
| 41 | 2456224 | 2012-10-23 | 401.76 |
| 42 | 2456627 | 2013-11-30 | 402.78 |
| 43 | 2457027 | 2015-01-04 | 403.09 |
| 44 | 2457430 | 2016-02-11 | 403.3 |
| 45 | 2457835 | 2017-03-22 | 403.6 |
| 46 | 2458237 | 2018-04-28 | 403.75 |
| 47 | 2458647 | 2019-06-12 | 403.97 |
| 48 | 2459050 | 2020-07-19 | 404.29 |
| 49 | 2459449 | 2021-08-22 | 404.36 |
| 50 | 2459857 | 2022-10-04 | 404.26 |
| 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. |