| E | O (JD) | O (dat) | Period |
| -118 | 2411580 | 1890-07-31 | 281.11 |
| -114 | 2412700 | 1893-08-24 | 280.37 |
| -108 | 2414380 | 1898-03-31 | 278.69 |
| -105 | 2415228 | 1900-07-27 | 278.77 |
| -104 | 2415510 | 1901-05-05 | 278.92 |
| -102 | 2416060 | 1902-11-06 | 278.3 |
| -100 | 2416604 | 1904-05-03 | 278.26 |
| -99 | 2416885 | 1905-02-08 | 278.4 |
| -98 | 2417157 | 1905-11-07 | 279.41 |
| -97 | 2417437 | 1906-08-14 | 282.8 |
| -96 | 2417736 | 1907-06-09 | 284.07 |
| -95 | 2418013 | 1908-03-12 | 283 |
| -94 | 2418307 | 1908-12-31 | 283.22 |
| -93 | 2418599 | 1909-10-19 | 281.57 |
| -92 | 2418867 | 1910-07-14 | 280.28 |
| -91 | 2419137 | 1911-04-10 | 279.85 |
| -90 | 2419422 | 1912-01-20 | 277.14 |
| -89 | 2419693 | 1912-10-17 | 276.64 |
| -88 | 2419980 | 1913-07-31 | 277.85 |
| -87 | 2420258 | 1914-05-05 | 276.64 |
| -86 | 2420528 | 1915-01-30 | 276.07 |
| -85 | 2420811 | 1915-11-09 | 276.86 |
| -84 | 2421083 | 1916-08-07 | 277.29 |
| -83 | 2421349 | 1917-04-30 | 277.64 |
| -82 | 2421631 | 1918-02-06 | 277.22 |
| -81 | 2421918 | 1918-11-20 | 277 |
| -80 | 2422202 | 1919-08-31 | 278.5 |
| -79 | 2422471 | 1920-05-26 | 279.57 |
| -78 | 2422749 | 1921-02-28 | 278.86 |
| -77 | 2423023 | 1921-11-29 | 277.79 |
| -76 | 2423308 | 1922-09-10 | 277.72 |
| -75 | 2423586 | 1923-06-15 | 278.43 |
| -74 | 2423867 | 1924-03-22 | 279.29 |
| -73 | 2424142 | 1924-12-22 | 278.5 |
| -72 | 2424419 | 1925-09-25 | 276.57 |
| -71 | 2424699 | 1926-07-02 | 275.57 |
| -70 | 2424983 | 1927-04-12 | 275.36 |
| -69 | 2425247 | 1928-01-01 | 275.79 |
| -68 | 2425519 | 1928-09-29 | 275.29 |
| -67 | 2425792 | 1929-06-29 | 274.36 |
| -66 | 2426072 | 1930-04-05 | 275.22 |
| -65 | 2426350 | 1931-01-08 | 276.93 |
| -64 | 2426622 | 1931-10-07 | 277.14 |
| -63 | 2426901 | 1932-07-12 | 277.57 |
| -62 | 2427182 | 1933-04-19 | 278.07 |
| -61 | 2427461 | 1934-01-23 | 278.07 |
| -60 | 2427730 | 1934-10-19 | 278.64 |
| -59 | 2428020 | 1935-08-05 | 279.14 |
| -58 | 2428295 | 1936-05-06 | 278.99 |
| -57 | 2428570 | 1937-02-05 | 280 |
| -56 | 2428854 | 1937-11-16 | 279.86 |
| -55 | 2429137 | 1938-08-26 | 278.36 |
| -54 | 2429412 | 1939-05-28 | 277.79 |
| -53 | 2429699 | 1940-03-10 | 276 |
| -52 | 2429969 | 1940-12-05 | 274 |
| -51 | 2430243 | 1941-09-05 | 274.64 |
| -50 | 2430511 | 1942-05-31 | 274.93 |
| -49 | 2430777 | 1943-02-21 | 274.43 |
| -48 | 2431050 | 1943-11-21 | 273.93 |
| -47 | 2431344 | 1944-09-10 | 274.29 |
| -46 | 2431616 | 1945-06-09 | 276.07 |
| -45 | 2431894 | 1946-03-14 | 276.5 |
| -44 | 2432153 | 1946-11-28 | 278.07 |
| -43 | 2432441 | 1947-09-12 | 278.36 |
| -42 | 2432712 | 1948-06-09 | 276.35 |
| -41 | 2432986 | 1949-03-10 | 276.28 |
| -40 | 2433301 | 1950-01-19 | 277.22 |
| -39 | 2433556 | 1950-10-01 | 278.07 |
| -38 | 2433823 | 1951-06-25 | 278.64 |
| -37 | 2434092 | 1952-03-20 | 275.72 |
| -36 | 2434383 | 1953-01-05 | 274.64 |
| -35 | 2434663 | 1953-10-12 | 278.36 |
| -34 | 2434936 | 1954-07-12 | 280.79 |
| -33 | 2435211 | 1955-04-13 | 281.07 |
| -32 | 2435491 | 1956-01-18 | 281.22 |
| -31 | 2435785 | 1956-11-07 | 283 |
| -30 | 2436061 | 1957-08-10 | 283.93 |
| -29 | 2436349 | 1958-05-25 | 284.28 |
| -28 | 2436634 | 1959-03-06 | 283.99 |
| -27 | 2436927 | 1959-12-24 | 283.22 |
| -26 | 2437195 | 1960-09-17 | 283.86 |
| -25 | 2437487 | 1961-07-06 | 283.93 |
| -24 | 2437765 | 1962-04-10 | 283.22 |
| -23 | 2438046 | 1963-01-16 | 282.86 |
| -22 | 2438338 | 1963-11-04 | 281.43 |
| -21 | 2438620 | 1964-08-12 | 280.07 |
| -20 | 2438906 | 1965-05-25 | 280.64 |
| -19 | 2439176 | 1966-02-19 | 279.64 |
| -18 | 2439446 | 1966-11-16 | 278.72 |
| -17 | 2439727 | 1967-08-24 | 278.29 |
| -16 | 2440013 | 1968-06-05 | 277.86 |
| -15 | 2440286 | 1969-03-05 | 278.07 |
| -14 | 2440574 | 1969-12-18 | 277.93 |
| -13 | 2440848 | 1970-09-18 | 277.14 |
| -12 | 2441124 | 1971-06-21 | 277.57 |
| -11 | 2441391 | 1972-03-14 | 277.57 |
| -10 | 2441673 | 1972-12-21 | 277.07 |
| -9 | 2441947 | 1973-09-21 | 278.21 |
| -8 | 2442238 | 1974-07-09 | 278.64 |
| -7 | 2442508 | 1975-04-05 | 278.43 |
| -6 | 2442793 | 1976-01-15 | 278.22 |
| -5 | 2443074 | 1976-10-22 | 277.36 |
| -4 | 2443342 | 1977-07-17 | 276.93 |
| -3 | 2443620 | 1978-04-21 | 277.29 |
| -2 | 2443895 | 1979-01-21 | 277.29 |
| -1 | 2444173 | 1979-10-26 | 278.72 |
| 0 | 2444450 | 1980-07-29 | 279.64 |
| 1 | 2444733 | 1981-05-08 | 279.14 |
| 2 | 2445016 | 1982-02-15 | 279.14 |
| 3 | 2445302 | 1982-11-28 | 279.79 |
| 4 | 2445575 | 1983-08-28 | 280.36 |
| 5 | 2445848 | 1984-05-27 | 280.14 |
| 6 | 2446128 | 1985-03-03 | 279.86 |
| 7 | 2446412 | 1985-12-12 | 279.5 |
| 8 | 2446696 | 1986-09-22 | 279.57 |
| 9 | 2446975 | 1987-06-28 | 280.35 |
| 10 | 2447261 | 1988-04-09 | 280.79 |
| 11 | 2447529 | 1989-01-02 | 279.57 |
| 12 | 2447808 | 1989-10-08 | 277.92 |
| 13 | 2448093 | 1990-07-20 | 276.29 |
| 14 | 2448378 | 1991-05-01 | 276.22 |
| 15 | 2448644 | 1992-01-22 | 277.64 |
| 16 | 2448918 | 1992-10-22 | 277.57 |
| 17 | 2449186 | 1993-07-17 | 276.86 |
| 18 | 2449471 | 1994-04-28 | 277.86 |
| 19 | 2449753 | 1995-02-04 | 279.57 |
| 20 | 2450034 | 1995-11-12 | 279.79 |
| 21 | 2450313 | 1996-08-17 | 279 |
| 22 | 2450599 | 1997-05-30 | 278.36 |
| 23 | 2450877 | 1998-03-04 | 278.22 |
| 24 | 2451144 | 1998-11-26 | 278 |
| 25 | 2451419 | 1999-08-28 | 278 |
| 26 | 2451702 | 2000-06-06 | 277.14 |
| 27 | 2451980 | 2001-03-11 | 276.93 |
| 28 | 2452259 | 2001-12-15 | 277.85 |
| 29 | 2452545 | 2002-09-27 | 278.28 |
| 30 | 2452811 | 2003-06-20 | 279.07 |
| 31 | 2453087 | 2004-03-22 | 279 |
| 32 | 2453366 | 2004-12-26 | 277.79 |
| 33 | 2453651 | 2005-10-07 | 278.5 |
| 34 | 2453938 | 2006-07-21 | 280.43 |
| 35 | 2454207 | 2007-04-16 | 281.22 |
| 36 | 2454486 | 2008-01-20 | 281.43 |
| 37 | 2454769 | 2008-10-29 | 280.86 |
| 38 | 2455055 | 2009-08-11 | 281.14 |
| 39 | 2455335 | 2010-05-18 | 282.21 |
| 40 | 2455622 | 2011-03-01 | 281.79 |
| 41 | 2455899 | 2011-12-03 | 280.85 |
| 42 | 2456182 | 2012-09-11 | 280.85 |
| 43 | 2456462 | 2013-06-18 | 280.5 |
| 44 | 2456738 | 2014-03-21 | 280.07 |
| 45 | 2457018 | 2014-12-26 | 280 |
| 46 | 2457304 | 2015-10-08 | 278.5 |
| 47 | 2457580 | 2016-07-10 | 277.79 |
| 48 | 2457862 | 2017-04-18 | 277.57 |
| 49 | 2458139 | 2018-01-20 | 276.14 |
| 50 | 2458404 | 2018-10-12 | 276.36 |
| 51 | 2458685 | 2019-07-20 | 276.29 |
| 52 | 2458957 | 2020-04-17 | 274.75 |
| 53 | 2459231 | 2021-01-16 | 275.75 |
| 54 | 2459522 | 2021-11-03 | 276.66 |
| 55 | 2459788 | 2022-07-27 | 275.79 |
| 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. |