| E | O (JD) | O (dat) | Period |
| -87 | 2412727 | 1893-09-20 | 358.63 |
| -85 | 2413430 | 1895-08-24 | 356.16 |
| -84 | 2413774 | 1896-08-02 | 354.7 |
| -83 | 2414135 | 1897-07-29 | 354.4 |
| -80 | 2415220 | 1900-07-19 | 354.3 |
| -77 | 2416265 | 1903-05-30 | 354.64 |
| -76 | 2416628 | 1904-05-27 | 353.18 |
| -75 | 2416973 | 1905-05-07 | 350.25 |
| -74 | 2417333 | 1906-05-02 | 348.63 |
| -73 | 2417673 | 1907-04-07 | 347.93 |
| -72 | 2418006 | 1908-03-05 | 348.88 |
| -71 | 2418354 | 1909-02-16 | 349.72 |
| -70 | 2418709 | 1910-02-06 | 349.22 |
| -69 | 2419055 | 1911-01-18 | 350.67 |
| -66 | 2420128 | 1913-12-26 | 353.11 |
| -65 | 2420473 | 1914-12-06 | 352.94 |
| -64 | 2420819 | 1915-11-17 | 352.11 |
| -63 | 2421172 | 1916-11-04 | 351.69 |
| -62 | 2421544 | 1917-11-11 | 351.79 |
| -61 | 2421872 | 1918-10-05 | 353.79 |
| -60 | 2422230 | 1919-09-28 | 353.93 |
| -59 | 2422580 | 1920-09-12 | 353 |
| -58 | 2422946 | 1921-09-13 | 353.64 |
| -57 | 2423299 | 1922-09-01 | 355 |
| -56 | 2423647 | 1923-08-15 | 356.07 |
| -55 | 2424011 | 1924-08-13 | 356.43 |
| -54 | 2424356 | 1925-07-24 | 356.36 |
| -53 | 2424716 | 1926-07-19 | 357.07 |
| -52 | 2425079 | 1927-07-17 | 356.64 |
| -51 | 2425437 | 1928-07-09 | 357.07 |
| -50 | 2425797 | 1929-07-04 | 356.71 |
| -49 | 2426148 | 1930-06-20 | 355.43 |
| -48 | 2426503 | 1931-06-10 | 355.79 |
| -47 | 2426863 | 1932-06-04 | 356.14 |
| -46 | 2427203 | 1933-05-10 | 356.29 |
| -45 | 2427568 | 1934-05-10 | 356.36 |
| -44 | 2427929 | 1935-05-06 | 356.57 |
| -43 | 2428291 | 1936-05-02 | 356.93 |
| -42 | 2428642 | 1937-04-18 | 357.5 |
| -41 | 2428998 | 1938-04-09 | 358.14 |
| -40 | 2429360 | 1939-04-06 | 357.71 |
| -39 | 2429703 | 1940-03-14 | 355.36 |
| -38 | 2430073 | 1941-03-19 | 353.43 |
| -37 | 2430438 | 1942-03-19 | 353.07 |
| -36 | 2430790 | 1943-03-06 | 353.5 |
| -35 | 2431118 | 1944-01-28 | 352.57 |
| -34 | 2431470 | 1945-01-14 | 350.36 |
| -33 | 2431831 | 1946-01-10 | 348.71 |
| -32 | 2432181 | 1946-12-26 | 349.57 |
| -31 | 2432531 | 1947-12-11 | 352.36 |
| -30 | 2432885 | 1948-11-29 | 350.71 |
| -29 | 2433225 | 1949-11-04 | 348.93 |
| -28 | 2433577 | 1950-10-22 | 350.86 |
| -27 | 2433944 | 1951-10-24 | 351.86 |
| -26 | 2434267 | 1952-09-11 | 351 |
| -25 | 2434630 | 1953-09-09 | 351 |
| -24 | 2434994 | 1954-09-08 | 351.36 |
| -23 | 2435348 | 1955-08-28 | 351.64 |
| -22 | 2435676 | 1956-07-21 | 352.14 |
| -21 | 2436040 | 1957-07-20 | 350.71 |
| -20 | 2436400 | 1958-07-15 | 349 |
| -19 | 2436734 | 1959-06-14 | 350.71 |
| -18 | 2437093 | 1960-06-07 | 352.86 |
| -17 | 2437441 | 1961-05-21 | 352.36 |
| -16 | 2437787 | 1962-05-02 | 353.07 |
| -15 | 2438147 | 1963-04-27 | 352.21 |
| -14 | 2438509 | 1964-04-23 | 350.71 |
| -13 | 2438864 | 1965-04-13 | 351.93 |
| -12 | 2439213 | 1966-03-28 | 352.14 |
| -11 | 2439545 | 1967-02-23 | 351.29 |
| -10 | 2439899 | 1968-02-12 | 351.43 |
| -9 | 2440256 | 1969-02-03 | 350.21 |
| -8 | 2440608 | 1970-01-21 | 350.21 |
| -7 | 2440966 | 1971-01-14 | 352.43 |
| -6 | 2441327 | 1972-01-10 | 352.79 |
| -5 | 2441653 | 1972-12-01 | 353.29 |
| -4 | 2442008 | 1973-11-21 | 353 |
| -3 | 2442370 | 1974-11-18 | 352.07 |
| -2 | 2442724 | 1975-11-07 | 354.14 |
| -1 | 2443086 | 1976-11-03 | 354.14 |
| 0 | 2443430 | 1977-10-13 | 351.21 |
| 1 | 2443792 | 1978-10-10 | 350.29 |
| 2 | 2444146 | 1979-09-29 | 349.57 |
| 3 | 2444473 | 1980-08-21 | 350.29 |
| 4 | 2444822 | 1981-08-05 | 349.43 |
| 5 | 2445176 | 1982-07-25 | 347.21 |
| 6 | 2445528 | 1983-07-12 | 349.93 |
| 7 | 2445892 | 1984-07-10 | 353.29 |
| 8 | 2446222 | 1985-06-05 | 354.86 |
| 9 | 2446577 | 1986-05-26 | 355.43 |
| 10 | 2446941 | 1987-05-25 | 354.07 |
| 11 | 2447300 | 1988-05-18 | 354.5 |
| 12 | 2447666 | 1989-05-19 | 356.36 |
| 13 | 2448014 | 1990-05-02 | 355.93 |
| 14 | 2448363 | 1991-04-16 | 355.14 |
| 15 | 2448714 | 1992-04-01 | 354.29 |
| 16 | 2449074 | 1993-03-27 | 353.86 |
| 17 | 2449427 | 1994-03-15 | 354.93 |
| 18 | 2449786 | 1995-03-09 | 355.07 |
| 19 | 2450140 | 1996-02-26 | 355 |
| 20 | 2450494 | 1997-02-14 | 356 |
| 21 | 2450852 | 1998-02-07 | 354.43 |
| 22 | 2451196 | 1999-01-17 | 352.14 |
| 23 | 2451562 | 2000-01-18 | 351.93 |
| 24 | 2451923 | 2001-01-13 | 350.86 |
| 25 | 2452252 | 2001-12-08 | 351 |
| 26 | 2452604 | 2002-11-25 | 351.57 |
| 27 | 2452957 | 2003-11-13 | 350.57 |
| 28 | 2453301 | 2004-10-22 | 350.21 |
| 29 | 2453661 | 2005-10-17 | 350.43 |
| 30 | 2454019 | 2006-10-10 | 351.64 |
| 31 | 2454374 | 2007-09-30 | 354.07 |
| 32 | 2454704 | 2008-08-25 | 355.29 |
| 33 | 2455058 | 2009-08-14 | 355.07 |
| 34 | 2455426 | 2010-08-17 | 356.36 |
| 35 | 2455789 | 2011-08-15 | 359.5 |
| 36 | 2456147 | 2012-08-07 | 361.29 |
| 37 | 2456504 | 2013-07-30 | 360.36 |
| 38 | 2456878 | 2014-08-08 | 358.64 |
| 39 | 2457233 | 2015-07-29 | 358.21 |
| 40 | 2457587 | 2016-07-17 | 357.86 |
| 41 | 2457942 | 2017-07-07 | 355.29 |
| 42 | 2458294 | 2018-06-24 | 352.36 |
| 43 | 2458657 | 2019-06-22 | 351.95 |
| 44 | 2459004 | 2020-06-03 | 352.94 |
| 45 | 2459352 | 2021-05-17 | 352.75 |
| 46 | 2459692 | 2022-04-22 | 352.9 |
| 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. |