| E | O (JD) | O (dat) | Period |
| -117 | 2411790 | 1891-02-26 | 272.27 |
| -114 | 2412648 | 1893-07-03 | 274.47 |
| -113 | 2412895 | 1894-03-07 | 276.15 |
| -111 | 2413459 | 1895-09-22 | 276.34 |
| -110 | 2413719 | 1896-06-08 | 275.42 |
| -109 | 2414010 | 1897-03-26 | 275.58 |
| -106 | 2414832 | 1899-06-26 | 276 |
| -105 | 2415111 | 1900-04-01 | 275.65 |
| -102 | 2415937 | 1902-07-06 | 275.19 |
| -101 | 2416220 | 1903-04-15 | 273.87 |
| -98 | 2417034 | 1905-07-07 | 274.73 |
| -97 | 2417311 | 1906-04-10 | 274.7 |
| -96 | 2417573 | 1906-12-28 | 273.06 |
| -95 | 2417842 | 1907-09-23 | 273.41 |
| -94 | 2418145 | 1908-07-22 | 274.56 |
| -93 | 2418397 | 1909-03-31 | 276.37 |
| -92 | 2418675 | 1910-01-03 | 278.06 |
| -90 | 2419227 | 1911-07-09 | 276 |
| -89 | 2419511 | 1912-04-18 | 275.37 |
| -88 | 2419795 | 1913-01-27 | 277.56 |
| -87 | 2420069 | 1913-10-28 | 276.93 |
| -86 | 2420334 | 1914-07-20 | 275.71 |
| -85 | 2420614 | 1915-04-26 | 275.43 |
| -84 | 2420899 | 1916-02-05 | 275.43 |
| -83 | 2421157 | 1916-10-20 | 275.64 |
| -82 | 2421441 | 1917-07-31 | 275.29 |
| -81 | 2421721 | 1918-05-07 | 274.79 |
| -80 | 2421999 | 1919-02-09 | 275.36 |
| -79 | 2422263 | 1919-10-31 | 275.5 |
| -78 | 2422539 | 1920-08-02 | 274.79 |
| -77 | 2422821 | 1921-05-11 | 274.43 |
| -76 | 2423090 | 1922-02-04 | 273.64 |
| -75 | 2423365 | 1922-11-06 | 273.64 |
| -74 | 2423644 | 1923-08-12 | 273.14 |
| -73 | 2423918 | 1924-05-12 | 271.86 |
| -72 | 2424175 | 1925-01-24 | 271.43 |
| -71 | 2424458 | 1925-11-03 | 270.93 |
| -70 | 2424726 | 1926-07-29 | 270.14 |
| -69 | 2424991 | 1927-04-20 | 271 |
| -68 | 2425264 | 1928-01-18 | 271.86 |
| -67 | 2425538 | 1928-10-18 | 272.07 |
| -66 | 2425806 | 1929-07-13 | 273.07 |
| -65 | 2426081 | 1930-04-14 | 273.93 |
| -64 | 2426358 | 1931-01-16 | 274.29 |
| -63 | 2426635 | 1931-10-20 | 274.07 |
| -62 | 2426905 | 1932-07-16 | 273.71 |
| -61 | 2427185 | 1933-04-22 | 273.57 |
| -60 | 2427457 | 1934-01-19 | 274.5 |
| -59 | 2427724 | 1934-10-13 | 274.86 |
| -58 | 2427995 | 1935-07-11 | 273.71 |
| -57 | 2428274 | 1936-04-15 | 272.79 |
| -56 | 2428562 | 1937-01-28 | 273.86 |
| -55 | 2428826 | 1937-10-19 | 276 |
| -54 | 2429096 | 1938-07-16 | 277.07 |
| -53 | 2429365 | 1939-04-11 | 276.57 |
| -52 | 2429650 | 1940-01-21 | 276.71 |
| -51 | 2429933 | 1940-10-30 | 278 |
| -50 | 2430215 | 1941-08-08 | 278.79 |
| -49 | 2430493 | 1942-05-13 | 278.57 |
| -48 | 2430769 | 1943-02-13 | 276.71 |
| -47 | 2431045 | 1943-11-16 | 275.57 |
| -46 | 2431319 | 1944-08-16 | 275.86 |
| -45 | 2431596 | 1945-05-20 | 276.36 |
| -44 | 2431861 | 1946-02-09 | 276.07 |
| -43 | 2432145 | 1946-11-20 | 276 |
| -42 | 2432425 | 1947-08-27 | 276.86 |
| -41 | 2432706 | 1948-06-03 | 278.57 |
| -40 | 2432973 | 1949-02-25 | 279.07 |
| -39 | 2433255 | 1949-12-04 | 277.5 |
| -38 | 2433536 | 1950-09-11 | 276.5 |
| -37 | 2433821 | 1951-06-23 | 277.29 |
| -36 | 2434092 | 1952-03-20 | 277.5 |
| -35 | 2434363 | 1952-12-16 | 275.79 |
| -34 | 2434639 | 1953-09-18 | 274.79 |
| -33 | 2434922 | 1954-06-28 | 275.43 |
| -32 | 2435191 | 1955-03-24 | 276 |
| -31 | 2435461 | 1955-12-19 | 276.14 |
| -30 | 2435743 | 1956-09-26 | 275.71 |
| -29 | 2436026 | 1957-07-06 | 275 |
| -28 | 2436293 | 1958-03-30 | 275.93 |
| -27 | 2436575 | 1959-01-06 | 276.57 |
| -26 | 2436846 | 1959-10-04 | 275.43 |
| -25 | 2437117 | 1960-07-01 | 275.07 |
| -24 | 2437398 | 1961-04-08 | 275.36 |
| -23 | 2437678 | 1962-01-13 | 275.21 |
| -22 | 2437947 | 1962-10-09 | 276.29 |
| -21 | 2438223 | 1963-07-12 | 276.79 |
| -20 | 2438500 | 1964-04-14 | 275.71 |
| -19 | 2438774 | 1965-01-13 | 275.93 |
| -18 | 2439057 | 1965-10-23 | 276.79 |
| -17 | 2439333 | 1966-07-26 | 276.36 |
| -16 | 2439603 | 1967-04-22 | 275.86 |
| -15 | 2439885 | 1968-01-29 | 275 |
| -14 | 2440160 | 1968-10-30 | 274.5 |
| -13 | 2440432 | 1969-07-29 | 275.29 |
| -12 | 2440704 | 1970-04-27 | 275.07 |
| -11 | 2440977 | 1971-01-25 | 274.79 |
| -10 | 2441256 | 1971-10-31 | 275.14 |
| -9 | 2441534 | 1972-08-04 | 275.64 |
| -8 | 2441805 | 1973-05-02 | 276.64 |
| -7 | 2442087 | 1974-02-08 | 277.64 |
| -6 | 2442357 | 1974-11-05 | 277.71 |
| -5 | 2442638 | 1975-08-13 | 277.64 |
| -4 | 2442916 | 1976-05-17 | 277.43 |
| -3 | 2443204 | 1977-03-01 | 277.5 |
| -2 | 2443474 | 1977-11-26 | 277.29 |
| -1 | 2443752 | 1978-08-31 | 276.14 |
| 0 | 2444024 | 1979-05-30 | 275.64 |
| 1 | 2444305 | 1980-03-06 | 275.86 |
| 2 | 2444572 | 1980-11-28 | 276.14 |
| 3 | 2444848 | 1981-08-31 | 275.64 |
| 4 | 2445131 | 1982-06-10 | 274.93 |
| 5 | 2445409 | 1983-03-15 | 275.21 |
| 6 | 2445683 | 1983-12-14 | 276.79 |
| 7 | 2445952 | 1984-09-08 | 276.07 |
| 8 | 2446226 | 1985-06-09 | 275.29 |
| 9 | 2446504 | 1986-03-14 | 275.93 |
| 10 | 2446791 | 1986-12-26 | 276.57 |
| 11 | 2447053 | 1987-09-14 | 277.86 |
| 12 | 2447341 | 1988-06-28 | 278.29 |
| 13 | 2447614 | 1989-03-28 | 277 |
| 14 | 2447893 | 1990-01-01 | 276.93 |
| 15 | 2448175 | 1990-10-10 | 277.21 |
| 16 | 2448451 | 1991-07-13 | 276.57 |
| 17 | 2448722 | 1992-04-09 | 275.86 |
| 18 | 2448999 | 1993-01-11 | 275.14 |
| 19 | 2449276 | 1993-10-15 | 275.64 |
| 20 | 2449551 | 1994-07-17 | 275.86 |
| 21 | 2449818 | 1995-04-10 | 275.5 |
| 22 | 2450102 | 1996-01-19 | 275.21 |
| 23 | 2450383 | 1996-10-26 | 275.5 |
| 24 | 2450652 | 1997-07-22 | 277.07 |
| 25 | 2450926 | 1998-04-22 | 278.29 |
| 26 | 2451202 | 1999-01-23 | 277.93 |
| 27 | 2451482 | 1999-10-30 | 277.21 |
| 28 | 2451766 | 2000-08-09 | 277.64 |
| 29 | 2452050 | 2001-05-20 | 278.71 |
| 30 | 2452326 | 2002-02-20 | 278.64 |
| 31 | 2452590 | 2002-11-11 | 277.71 |
| 32 | 2452875 | 2003-08-23 | 276.21 |
| 33 | 2453155 | 2004-05-29 | 276.21 |
| 34 | 2453430 | 2005-02-28 | 277.71 |
| 35 | 2453706 | 2005-12-01 | 277.5 |
| 36 | 2453977 | 2006-08-29 | 276.86 |
| 37 | 2454266 | 2007-06-14 | 277.36 |
| 38 | 2454538 | 2008-03-12 | 277.86 |
| 39 | 2454812 | 2008-12-11 | 278.43 |
| 40 | 2455094 | 2009-09-19 | 278.5 |
| 41 | 2455374 | 2010-06-26 | 278.14 |
| 42 | 2455652 | 2011-03-31 | 278.36 |
| 43 | 2455929 | 2012-01-02 | 278.07 |
| 44 | 2456213 | 2012-10-12 | 277 |
| 45 | 2456485 | 2013-07-11 | 276.36 |
| 46 | 2456762 | 2014-04-14 | 276.14 |
| 47 | 2457037 | 2015-01-14 | 275.14 |
| 48 | 2457309 | 2015-10-13 | 275 |
| 49 | 2457586 | 2016-07-16 | 275.14 |
| 50 | 2457861 | 2017-04-17 | 274.43 |
| 51 | 2458133 | 2018-01-14 | 274.43 |
| 52 | 2458415 | 2018-10-23 | 274.36 |
| 53 | 2458684 | 2019-07-19 | 274.64 |
| 54 | 2458957 | 2020-04-17 | 275.19 |
| 55 | 2459231 | 2021-01-16 | 273.94 |
| 56 | 2459505 | 2021-10-17 | 273.5 |
| 57 | 2459787 | 2022-07-26 | 274.4 |
| 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. |