| E | O (JD) | O (dat) | Period |
| -93 | 2411600 | 1890-08-20 | 328.04 |
| -89 | 2412910 | 1894-03-22 | 327.35 |
| -87 | 2413610 | 1896-02-20 | 327.4 |
| -83 | 2414907 | 1899-09-09 | 328.54 |
| -82 | 2415225 | 1900-07-24 | 328.46 |
| -81 | 2415544 | 1901-06-08 | 326.85 |
| -80 | 2415882 | 1902-05-12 | 325.74 |
| -79 | 2416200 | 1903-03-26 | 326.46 |
| -77 | 2416850 | 1905-01-04 | 326.93 |
| -72 | 2418495 | 1909-07-07 | 326.38 |
| -71 | 2418817 | 1910-05-25 | 326.85 |
| -70 | 2419150 | 1911-04-23 | 327.73 |
| -64 | 2421100 | 1916-08-24 | 327.34 |
| -63 | 2421423 | 1917-07-13 | 327.15 |
| -62 | 2421772 | 1918-06-27 | 326.85 |
| -61 | 2422093 | 1919-05-14 | 327.1 |
| -59 | 2422745 | 1921-02-24 | 328.69 |
| -58 | 2423073 | 1922-01-18 | 327.25 |
| -57 | 2423392 | 1922-12-03 | 326.75 |
| -56 | 2423727 | 1923-11-03 | 328.13 |
| -55 | 2424055 | 1924-09-26 | 327.21 |
| -54 | 2424376 | 1925-08-13 | 326.29 |
| -53 | 2424717 | 1926-07-20 | 326 |
| -52 | 2425043 | 1927-06-11 | 324.43 |
| -51 | 2425356 | 1928-04-19 | 323.79 |
| -50 | 2425677 | 1929-03-06 | 324 |
| -49 | 2426006 | 1930-01-29 | 324.21 |
| -48 | 2426318 | 1930-12-07 | 325.07 |
| -47 | 2426646 | 1931-10-31 | 325.64 |
| -46 | 2426983 | 1932-10-02 | 326.43 |
| -45 | 2427316 | 1933-08-31 | 327.57 |
| -44 | 2427634 | 1934-07-15 | 328.07 |
| -43 | 2427958 | 1935-06-04 | 327.86 |
| -42 | 2428295 | 1936-05-06 | 327.5 |
| -41 | 2428615 | 1937-03-22 | 328.14 |
| -40 | 2428942 | 1938-02-12 | 328.57 |
| -39 | 2429277 | 1939-01-13 | 327.79 |
| -38 | 2429607 | 1939-12-09 | 327.86 |
| -37 | 2429937 | 1940-11-03 | 328.64 |
| -36 | 2430255 | 1941-09-17 | 329.21 |
| -35 | 2430587 | 1942-08-15 | 329.36 |
| -34 | 2430913 | 1943-07-07 | 329.5 |
| -33 | 2431245 | 1944-06-03 | 330.29 |
| -32 | 2431583 | 1945-05-07 | 329.79 |
| -31 | 2431912 | 1946-04-01 | 330.29 |
| -30 | 2432245 | 1947-02-28 | 331.36 |
| -29 | 2432571 | 1948-01-20 | 330.71 |
| -28 | 2432888 | 1948-12-02 | 329.86 |
| -27 | 2433236 | 1949-11-15 | 329.36 |
| -26 | 2433561 | 1950-10-06 | 329.64 |
| -25 | 2433897 | 1951-09-07 | 330.93 |
| -24 | 2434216 | 1952-07-22 | 330.64 |
| -23 | 2434552 | 1953-06-23 | 329.71 |
| -22 | 2434879 | 1954-05-16 | 329.57 |
| -21 | 2435213 | 1955-04-15 | 329.5 |
| -20 | 2435540 | 1956-03-07 | 329.86 |
| -19 | 2435873 | 1957-02-03 | 329.64 |
| -18 | 2436199 | 1957-12-26 | 328.93 |
| -17 | 2436527 | 1958-11-19 | 328.29 |
| -16 | 2436859 | 1959-10-17 | 328.64 |
| -15 | 2437187 | 1960-09-09 | 329.43 |
| -14 | 2437510 | 1961-07-29 | 328.86 |
| -13 | 2437839 | 1962-06-23 | 328.07 |
| -12 | 2438175 | 1963-05-25 | 328.43 |
| -11 | 2438509 | 1964-04-23 | 328.43 |
| -10 | 2438821 | 1965-03-01 | 328.64 |
| -9 | 2439158 | 1966-02-01 | 328.57 |
| -8 | 2439486 | 1966-12-26 | 327.07 |
| -7 | 2439809 | 1967-11-14 | 328.29 |
| -6 | 2440141 | 1968-10-11 | 330.07 |
| -5 | 2440473 | 1969-09-08 | 329.57 |
| -4 | 2440790 | 1970-07-22 | 330.14 |
| -3 | 2441136 | 1971-07-03 | 330.64 |
| -2 | 2441464 | 1972-05-26 | 330.29 |
| -1 | 2441794 | 1973-04-21 | 330.43 |
| 0 | 2442123 | 1974-03-16 | 329.57 |
| 1 | 2442456 | 1975-02-12 | 329.43 |
| 2 | 2442782 | 1976-01-04 | 330.64 |
| 3 | 2443107 | 1976-11-24 | 330.36 |
| 4 | 2443433 | 1977-10-16 | 330.21 |
| 5 | 2443779 | 1978-09-27 | 329.64 |
| 6 | 2444108 | 1979-08-22 | 329.57 |
| 7 | 2444434 | 1980-07-13 | 330.21 |
| 8 | 2444768 | 1981-06-12 | 329.36 |
| 9 | 2445085 | 1982-04-25 | 327.93 |
| 10 | 2445418 | 1983-03-24 | 327.07 |
| 11 | 2445745 | 1984-02-14 | 326.43 |
| 12 | 2446078 | 1985-01-12 | 327.71 |
| 13 | 2446400 | 1985-11-30 | 329 |
| 14 | 2446721 | 1986-10-17 | 328.86 |
| 15 | 2447051 | 1987-09-12 | 328.57 |
| 16 | 2447390 | 1988-08-16 | 328.71 |
| 17 | 2447719 | 1989-07-11 | 329.36 |
| 18 | 2448048 | 1990-06-05 | 328.93 |
| 19 | 2448375 | 1991-04-28 | 327.36 |
| 20 | 2448705 | 1992-03-23 | 326.86 |
| 21 | 2449027 | 1993-02-08 | 327.14 |
| 22 | 2449350 | 1993-12-28 | 326.71 |
| 23 | 2449674 | 1994-11-17 | 325.36 |
| 24 | 2450011 | 1995-10-20 | 324.5 |
| 25 | 2450336 | 1996-09-09 | 327.07 |
| 26 | 2450661 | 1997-07-31 | 326.79 |
| 27 | 2450974 | 1998-06-09 | 324 |
| 28 | 2451301 | 1999-05-02 | 323.36 |
| 29 | 2451655 | 2000-04-20 | 323.21 |
| 30 | 2451944 | 2001-02-03 | 323.79 |
| 31 | 2452277 | 2002-01-02 | 324.43 |
| 32 | 2452597 | 2002-11-18 | 322.43 |
| 33 | 2452925 | 2003-10-12 | 323.43 |
| 34 | 2453243 | 2004-08-25 | 326.57 |
| 35 | 2453574 | 2005-07-22 | 327.43 |
| 36 | 2453896 | 2006-06-09 | 328.14 |
| 37 | 2454231 | 2007-05-10 | 329.71 |
| 38 | 2454562 | 2008-04-05 | 331.5 |
| 39 | 2454896 | 2009-03-05 | 330.86 |
| 40 | 2455220 | 2010-01-23 | 329.14 |
| 41 | 2455564 | 2011-01-02 | 328 |
| 42 | 2455894 | 2011-11-28 | 328.43 |
| 43 | 2456208 | 2012-10-07 | 329.64 |
| 44 | 2456527 | 2013-08-22 | 328.71 |
| 45 | 2456858 | 2014-07-19 | 327.64 |
| 46 | 2457198 | 2015-06-24 | 328.57 |
| 47 | 2457533 | 2016-05-24 | 328.93 |
| 48 | 2457853 | 2017-04-09 | 329.64 |
| 49 | 2458192 | 2018-03-14 | 328.5 |
| 50 | 2458510 | 2019-01-26 | 325.57 |
| 51 | 2458830 | 2019-12-12 | 325.38 |
| 52 | 2459170 | 2020-11-16 | 324.94 |
| 53 | 2459485 | 2021-09-27 | 323.75 |
| 54 | 2459804 | 2022-08-12 | 324.9 |
| 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. |