| E | O (JD) | O (dat) | Period |
| -97 | 2411134 | 1889-05-11 | 314.68 |
| -91 | 2413050 | 1894-08-09 | 314.39 |
| -90 | 2413358 | 1895-06-13 | 314.15 |
| -89 | 2413662 | 1896-04-12 | 314.17 |
| -88 | 2413975 | 1897-02-19 | 313.69 |
| -85 | 2414910 | 1899-09-12 | 313.94 |
| -84 | 2415230 | 1900-07-29 | 313.43 |
| -83 | 2415542 | 1901-06-06 | 315.16 |
| -82 | 2415861 | 1902-04-21 | 316.38 |
| -81 | 2416157 | 1903-02-11 | 317.71 |
| -79 | 2416807 | 1904-11-22 | 318.96 |
| -77 | 2417439 | 1906-08-16 | 319.23 |
| -76 | 2417781 | 1907-07-24 | 320.34 |
| -75 | 2418091 | 1908-05-29 | 321.23 |
| -74 | 2418421 | 1909-04-24 | 322.03 |
| -73 | 2418733 | 1910-03-02 | 322.02 |
| -71 | 2419366 | 1911-11-25 | 322.77 |
| -70 | 2419707 | 1912-10-31 | 322.01 |
| -69 | 2420029 | 1913-09-18 | 321.81 |
| -68 | 2420345 | 1914-07-31 | 321.15 |
| -67 | 2420672 | 1915-06-23 | 320.22 |
| -66 | 2421007 | 1916-05-23 | 319.07 |
| -65 | 2421307 | 1917-03-19 | 318.35 |
| -64 | 2421620 | 1918-01-26 | 318.55 |
| -63 | 2421941 | 1918-12-13 | 318.17 |
| -62 | 2422245 | 1919-10-13 | 318.02 |
| -61 | 2422571 | 1920-09-03 | 317.41 |
| -60 | 2422907 | 1921-08-05 | 317.39 |
| -59 | 2423226 | 1922-06-20 | 317.39 |
| -58 | 2423531 | 1923-04-21 | 317.05 |
| -57 | 2423857 | 1924-03-12 | 316.94 |
| -56 | 2424157 | 1925-01-06 | 315.68 |
| -55 | 2424465 | 1925-11-10 | 314.82 |
| -54 | 2424797 | 1926-10-08 | 314.8 |
| -53 | 2425112 | 1927-08-19 | 314.6 |
| -52 | 2425430 | 1928-07-02 | 314.22 |
| -51 | 2425738 | 1929-05-06 | 313.76 |
| -50 | 2426054 | 1930-03-18 | 312.75 |
| -49 | 2426366 | 1931-01-24 | 311.79 |
| -48 | 2426671 | 1931-11-25 | 311.14 |
| -47 | 2426990 | 1932-10-09 | 310.78 |
| -46 | 2427289 | 1933-08-04 | 311.58 |
| -45 | 2427603 | 1934-06-14 | 311.57 |
| -44 | 2427924 | 1935-05-01 | 312.13 |
| -43 | 2428224 | 1936-02-25 | 312.86 |
| -42 | 2428538 | 1937-01-04 | 313.45 |
| -41 | 2428867 | 1937-11-29 | 314.05 |
| -40 | 2429167 | 1938-09-25 | 314.25 |
| -39 | 2429486 | 1939-08-10 | 315 |
| -38 | 2429802 | 1940-06-21 | 316.6 |
| -37 | 2430120 | 1941-05-05 | 317.43 |
| -36 | 2430427 | 1942-03-08 | 318 |
| -35 | 2430747 | 1943-01-22 | 318.77 |
| -32 | 2431701 | 1945-09-02 | 319.19 |
| -31 | 2432035 | 1946-08-02 | 319.22 |
| -30 | 2432356 | 1947-06-19 | 320.13 |
| -29 | 2432674 | 1948-05-02 | 320.6 |
| -28 | 2432987 | 1949-03-11 | 320.07 |
| -27 | 2433313 | 1950-01-31 | 319.65 |
| -26 | 2433619 | 1950-12-03 | 318.55 |
| -25 | 2433965 | 1951-11-14 | 318.22 |
| -24 | 2434272 | 1952-09-16 | 317.44 |
| -23 | 2434580 | 1953-07-21 | 316.42 |
| -22 | 2434905 | 1954-06-11 | 316.65 |
| -21 | 2435216 | 1955-04-18 | 315.97 |
| -20 | 2435535 | 1956-03-02 | 314.85 |
| -19 | 2435840 | 1957-01-01 | 315.23 |
| -18 | 2436150 | 1957-11-07 | 315.2 |
| -17 | 2436497 | 1958-10-20 | 314.72 |
| -16 | 2436788 | 1959-08-07 | 314.66 |
| -15 | 2437106 | 1960-06-20 | 314.43 |
| -14 | 2437421 | 1961-05-01 | 315.01 |
| -13 | 2437735 | 1962-03-11 | 314.8 |
| -12 | 2438048 | 1963-01-18 | 314.25 |
| -11 | 2438361 | 1963-11-27 | 315.44 |
| -10 | 2438675 | 1964-10-06 | 315.52 |
| -9 | 2439002 | 1965-08-29 | 315.65 |
| -8 | 2439312 | 1966-07-05 | 315.67 |
| -7 | 2439627 | 1967-05-16 | 315.99 |
| -6 | 2439944 | 1968-03-28 | 316.2 |
| -5 | 2440260 | 1969-02-07 | 316.58 |
| -4 | 2440574 | 1969-12-18 | 316.77 |
| -3 | 2440887 | 1970-10-27 | 318 |
| -2 | 2441210 | 1971-09-15 | 318.45 |
| -1 | 2441527 | 1972-07-28 | 319.41 |
| 0 | 2441851 | 1973-06-17 | 320.18 |
| 1 | 2442168 | 1974-04-30 | 320.44 |
| 2 | 2442497 | 1975-03-25 | 320.96 |
| 3 | 2442807 | 1976-01-29 | 321.19 |
| 4 | 2443139 | 1976-12-26 | 321.03 |
| 5 | 2443457 | 1977-11-09 | 320.8 |
| 6 | 2443769 | 1978-09-17 | 320.38 |
| 7 | 2444100 | 1979-08-14 | 319.45 |
| 8 | 2444423 | 1980-07-02 | 319.69 |
| 9 | 2444734 | 1981-05-09 | 318.63 |
| 10 | 2445057 | 1982-03-28 | 317.7 |
| 11 | 2445370 | 1983-02-04 | 317.01 |
| 12 | 2445682 | 1983-12-13 | 315.88 |
| 13 | 2446016 | 1984-11-11 | 315.56 |
| 14 | 2446319 | 1985-09-10 | 315.27 |
| 15 | 2446626 | 1986-07-14 | 314.8 |
| 16 | 2446947 | 1987-05-31 | 314.75 |
| 17 | 2447261 | 1988-04-09 | 314.11 |
| 18 | 2447580 | 1989-02-22 | 313.71 |
| 19 | 2447889 | 1989-12-28 | 314.07 |
| 20 | 2448205 | 1990-11-09 | 313.78 |
| 21 | 2448521 | 1991-09-21 | 313.49 |
| 22 | 2448825 | 1992-07-21 | 313.25 |
| 23 | 2449147 | 1993-06-08 | 313.19 |
| 24 | 2449456 | 1994-04-13 | 313.75 |
| 25 | 2449766 | 1995-02-17 | 314.19 |
| 26 | 2450087 | 1996-01-04 | 314.26 |
| 27 | 2450395 | 1996-11-07 | 314.48 |
| 28 | 2450712 | 1997-09-20 | 314.35 |
| 29 | 2451033 | 1998-08-07 | 314.81 |
| 30 | 2451350 | 1999-06-20 | 315.24 |
| 31 | 2451655 | 2000-04-20 | 315.13 |
| 32 | 2451969 | 2001-02-28 | 315.4 |
| 33 | 2452286 | 2002-01-11 | 315.84 |
| 34 | 2452605 | 2002-11-26 | 315.62 |
| 35 | 2452925 | 2003-10-12 | 315.74 |
| 36 | 2453235 | 2004-08-17 | 316.38 |
| 37 | 2453552 | 2005-06-30 | 316.47 |
| 38 | 2453879 | 2006-05-23 | 316.13 |
| 39 | 2454181 | 2007-03-21 | 316.23 |
| 40 | 2454497 | 2008-01-31 | 316.22 |
| 41 | 2454821 | 2008-12-20 | 316.4 |
| 42 | 2455137 | 2009-11-01 | 316.85 |
| 43 | 2455447 | 2010-09-07 | 317.02 |
| 44 | 2455772 | 2011-07-29 | 317.57 |
| 45 | 2456084 | 2012-06-05 | 317.59 |
| 46 | 2456400 | 2013-04-17 | 317.48 |
| 47 | 2456729 | 2014-03-12 | 317.54 |
| 48 | 2457041 | 2015-01-18 | 317.55 |
| 49 | 2457355 | 2015-11-28 | 316.81 |
| 50 | 2457676 | 2016-10-14 | 317.15 |
| 51 | 2457993 | 2017-08-27 | 316.91 |
| 52 | 2458307 | 2018-07-07 | 316.12 |
| 53 | 2458624 | 2019-05-20 | 316.28 |
| 54 | 2458933 | 2020-03-24 | 316.22 |
| 55 | 2459264 | 2021-02-18 | 315.86 |
| 56 | 2459575 | 2021-12-26 | 315.82 |
| 57 | 2459882 | 2022-10-29 | 315.97 |
| 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. |