| E | O (JD) | O (dat) | Period |
| -86 | 2410207 | 1886-10-27 | 361.37 |
| -83 | 2411338 | 1889-12-01 | 362.04 |
| -82 | 2411720 | 1890-12-18 | 365.1 |
| -79 | 2412786 | 1893-11-18 | 368.01 |
| -78 | 2413139 | 1894-11-06 | 366.1 |
| -77 | 2413507 | 1895-11-09 | 362.66 |
| -76 | 2413893 | 1896-11-29 | 363.12 |
| -75 | 2414257 | 1897-11-28 | 364.64 |
| -74 | 2414610 | 1898-11-16 | 362.64 |
| -73 | 2414976 | 1899-11-17 | 359.72 |
| -72 | 2415340 | 1900-11-16 | 358.85 |
| -71 | 2415690 | 1901-11-01 | 360.92 |
| -70 | 2416033 | 1902-10-10 | 361.57 |
| -69 | 2416403 | 1903-10-15 | 361.72 |
| -68 | 2416771 | 1904-10-17 | 362.86 |
| -67 | 2417149 | 1905-10-30 | 364.72 |
| -66 | 2417499 | 1906-10-15 | 368.36 |
| -65 | 2417881 | 1907-11-01 | 370.14 |
| -64 | 2418229 | 1908-10-14 | 369.64 |
| -63 | 2418600 | 1909-10-20 | 372.07 |
| -62 | 2418993 | 1910-11-17 | 373.78 |
| -61 | 2419363 | 1911-11-22 | 373.78 |
| -60 | 2419732 | 1912-11-25 | 375.36 |
| -59 | 2420125 | 1913-12-23 | 375.35 |
| -58 | 2420488 | 1914-12-21 | 375.35 |
| -57 | 2420855 | 1915-12-23 | 374.64 |
| -56 | 2421229 | 1916-12-31 | 371.93 |
| -55 | 2421619 | 1918-01-25 | 369.72 |
| -54 | 2421992 | 1919-02-02 | 369.79 |
| -53 | 2422348 | 1920-01-24 | 368.93 |
| -52 | 2422716 | 1921-01-26 | 365.43 |
| -51 | 2423073 | 1922-01-18 | 362.72 |
| -50 | 2423447 | 1923-01-27 | 363.29 |
| -49 | 2423802 | 1924-01-17 | 364.14 |
| -48 | 2424162 | 1925-01-11 | 364.22 |
| -47 | 2424527 | 1926-01-11 | 364.29 |
| -46 | 2424899 | 1927-01-18 | 365.36 |
| -45 | 2425263 | 1928-01-17 | 367.64 |
| -44 | 2425625 | 1929-01-13 | 368.22 |
| -43 | 2425995 | 1930-01-18 | 368.5 |
| -42 | 2426369 | 1931-01-27 | 369.64 |
| -41 | 2426742 | 1932-02-04 | 370.21 |
| -40 | 2427102 | 1933-01-29 | 370.72 |
| -39 | 2427483 | 1934-02-14 | 371.07 |
| -38 | 2427854 | 1935-02-20 | 370.42 |
| -37 | 2428217 | 1936-02-18 | 370.64 |
| -36 | 2428593 | 1937-02-28 | 370.93 |
| -35 | 2428966 | 1938-03-08 | 369.93 |
| -34 | 2429331 | 1939-03-08 | 369.93 |
| -33 | 2429702 | 1940-03-13 | 370.79 |
| -32 | 2430076 | 1941-03-22 | 370.36 |
| -31 | 2430440 | 1942-03-21 | 370.22 |
| -30 | 2430810 | 1943-03-26 | 371.07 |
| -29 | 2431191 | 1944-04-10 | 370.64 |
| -28 | 2431553 | 1945-04-07 | 371.36 |
| -27 | 2431927 | 1946-04-16 | 372 |
| -26 | 2432301 | 1947-04-25 | 370.93 |
| -25 | 2432666 | 1948-04-24 | 371.07 |
| -24 | 2433049 | 1949-05-12 | 371 |
| -23 | 2433409 | 1950-05-07 | 369.86 |
| -22 | 2433785 | 1951-05-18 | 369.71 |
| -21 | 2434154 | 1952-05-21 | 369.07 |
| -20 | 2434520 | 1953-05-22 | 368.14 |
| -19 | 2434886 | 1954-05-23 | 367.64 |
| -18 | 2435257 | 1955-05-29 | 366.93 |
| -17 | 2435625 | 1956-05-31 | 367.93 |
| -16 | 2435987 | 1957-05-28 | 368.22 |
| -15 | 2436354 | 1958-05-30 | 366.86 |
| -14 | 2436722 | 1959-06-02 | 365.93 |
| -13 | 2437103 | 1960-06-17 | 365.29 |
| -12 | 2437458 | 1961-06-07 | 364.35 |
| -11 | 2437821 | 1962-06-05 | 364.42 |
| -10 | 2438184 | 1963-06-03 | 364.22 |
| -9 | 2438542 | 1964-05-26 | 364.42 |
| -8 | 2438900 | 1965-05-19 | 367.07 |
| -7 | 2439278 | 1966-06-01 | 368.43 |
| -6 | 2439646 | 1967-06-04 | 369.5 |
| -5 | 2440017 | 1968-06-09 | 371.86 |
| -4 | 2440401 | 1969-06-28 | 372.36 |
| -3 | 2440762 | 1970-06-24 | 372.72 |
| -2 | 2441137 | 1971-07-04 | 375.43 |
| -1 | 2441511 | 1972-07-12 | 375.86 |
| 0 | 2441880 | 1973-07-16 | 376 |
| 1 | 2442262 | 1974-08-02 | 375.93 |
| 2 | 2442657 | 1975-09-01 | 372.72 |
| 3 | 2443023 | 1976-09-01 | 370.29 |
| 4 | 2443404 | 1977-09-17 | 368.64 |
| 5 | 2443758 | 1978-09-06 | 365 |
| 6 | 2444108 | 1979-08-22 | 361.86 |
| 7 | 2444467 | 1980-08-15 | 360 |
| 8 | 2444836 | 1981-08-19 | 359.71 |
| 9 | 2445193 | 1982-08-11 | 362.28 |
| 10 | 2445553 | 1983-08-06 | 364.29 |
| 11 | 2445914 | 1984-08-01 | 365.07 |
| 12 | 2446284 | 1985-08-06 | 366.49 |
| 13 | 2446654 | 1986-08-11 | 368.14 |
| 14 | 2447021 | 1987-08-13 | 369.36 |
| 15 | 2447393 | 1988-08-19 | 370.07 |
| 16 | 2447767 | 1989-08-28 | 368.57 |
| 17 | 2448133 | 1990-08-29 | 368.07 |
| 18 | 2448505 | 1991-09-05 | 368.72 |
| 19 | 2448874 | 1992-09-08 | 367.93 |
| 20 | 2449224 | 1993-08-24 | 368.29 |
| 21 | 2449604 | 1994-09-08 | 369.86 |
| 22 | 2449972 | 1995-09-11 | 371.29 |
| 23 | 2450339 | 1996-09-12 | 371.86 |
| 24 | 2450717 | 1997-09-25 | 372.57 |
| 25 | 2451099 | 1998-10-12 | 374.22 |
| 26 | 2451478 | 1999-10-26 | 375 |
| 27 | 2451826 | 2000-10-08 | 375.36 |
| 28 | 2452218 | 2001-11-04 | 375.07 |
| 29 | 2452597 | 2002-11-18 | 373.21 |
| 30 | 2452964 | 2003-11-20 | 373.64 |
| 31 | 2453347 | 2004-12-07 | 373.57 |
| 32 | 2453720 | 2005-12-15 | 371.29 |
| 33 | 2454082 | 2006-12-12 | 371.14 |
| 34 | 2454453 | 2007-12-18 | 370.57 |
| 35 | 2454821 | 2008-12-20 | 369.72 |
| 36 | 2455192 | 2009-12-26 | 370.22 |
| 37 | 2455565 | 2011-01-03 | 371.07 |
| 38 | 2455934 | 2012-01-07 | 372.35 |
| 39 | 2456309 | 2013-01-16 | 373.28 |
| 40 | 2456676 | 2014-01-18 | 373.43 |
| 41 | 2457054 | 2015-01-31 | 372.49 |
| 42 | 2457433 | 2016-02-14 | 370.57 |
| 43 | 2457806 | 2017-02-21 | 369.93 |
| 44 | 2458179 | 2018-03-01 | 369.22 |
| 45 | 2458535 | 2019-02-20 | 367.93 |
| 46 | 2458896 | 2020-02-16 | 366.38 |
| 47 | 2459268 | 2021-02-22 | 363.33 |
| 48 | 2459631 | 2022-02-20 | 361.39 |
| 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. |