| E | O (JD) | O (dat) | Period |
| -88 | 2412100 | 1892-01-02 | 329.72 |
| -84 | 2413415 | 1895-08-09 | 329.9 |
| -83 | 2413750 | 1896-07-09 | 330.09 |
| -82 | 2414080 | 1897-06-04 | 330.04 |
| -80 | 2414739 | 1899-03-25 | 330.64 |
| -79 | 2415065 | 1900-02-14 | 331.12 |
| -78 | 2415400 | 1901-01-15 | 331.91 |
| -77 | 2415732 | 1901-12-13 | 332.58 |
| -76 | 2416058 | 1902-11-04 | 333.76 |
| -75 | 2416406 | 1903-10-18 | 334.63 |
| -74 | 2416740 | 1904-09-16 | 334.72 |
| -73 | 2417067 | 1905-08-09 | 334.47 |
| -72 | 2417410 | 1906-07-18 | 334.36 |
| -71 | 2417750 | 1907-06-23 | 333.66 |
| -65 | 2419750 | 1912-12-13 | 333.14 |
| -63 | 2420416 | 1914-10-10 | 333.06 |
| -62 | 2420745 | 1915-09-04 | 332.95 |
| -61 | 2421080 | 1916-08-04 | 332.63 |
| -58 | 2422060 | 1919-04-11 | 332.24 |
| -57 | 2422400 | 1920-03-16 | 332.39 |
| -56 | 2422740 | 1921-02-19 | 332.53 |
| -55 | 2423072 | 1922-01-17 | 333.14 |
| -54 | 2423407 | 1922-12-18 | 333.59 |
| -53 | 2423731 | 1923-11-07 | 334.75 |
| -52 | 2424079 | 1924-10-20 | 334.75 |
| -51 | 2424401 | 1925-09-07 | 334.45 |
| -50 | 2424744 | 1926-08-16 | 334.58 |
| -49 | 2425075 | 1927-07-13 | 334.93 |
| -48 | 2425416 | 1928-06-18 | 335.11 |
| -47 | 2425753 | 1929-05-21 | 334.79 |
| -46 | 2426077 | 1930-04-10 | 335.95 |
| -45 | 2426414 | 1931-03-13 | 336.11 |
| -44 | 2426755 | 1932-02-17 | 336.71 |
| -43 | 2427086 | 1933-01-13 | 336.85 |
| -42 | 2427422 | 1933-12-15 | 336.8 |
| -41 | 2427775 | 1934-12-03 | 336.91 |
| -40 | 2428106 | 1935-10-30 | 335.91 |
| -39 | 2428445 | 1936-10-03 | 335.18 |
| -38 | 2428778 | 1937-09-01 | 335.17 |
| -37 | 2429105 | 1938-07-25 | 334.76 |
| -36 | 2429442 | 1939-06-27 | 334.23 |
| -31 | 2431116 | 1944-01-26 | 334.14 |
| -30 | 2431446 | 1944-12-21 | 334 |
| -29 | 2431792 | 1945-12-02 | 333.96 |
| -28 | 2432119 | 1946-10-25 | 334.33 |
| -27 | 2432449 | 1947-09-20 | 333.99 |
| -26 | 2432781 | 1948-08-17 | 333.31 |
| -25 | 2433116 | 1949-07-18 | 333.37 |
| -24 | 2433447 | 1950-06-14 | 332.7 |
| -23 | 2433796 | 1951-05-29 | 332.83 |
| -22 | 2434117 | 1952-04-14 | 333 |
| -21 | 2434445 | 1953-03-08 | 332.45 |
| -20 | 2434787 | 1954-02-13 | 332.29 |
| -19 | 2435109 | 1955-01-01 | 332.5 |
| -18 | 2435444 | 1955-12-02 | 332.6 |
| -17 | 2435783 | 1956-11-05 | 332.95 |
| -16 | 2436104 | 1957-09-22 | 333.15 |
| -15 | 2436445 | 1958-08-29 | 332.95 |
| -14 | 2436784 | 1959-08-03 | 332.6 |
| -13 | 2437118 | 1960-07-02 | 331.66 |
| -12 | 2437439 | 1961-05-19 | 330.56 |
| -11 | 2437779 | 1962-04-24 | 329.85 |
| -10 | 2438109 | 1963-03-20 | 329.16 |
| -9 | 2438428 | 1964-02-02 | 328.7 |
| -8 | 2438757 | 1964-12-27 | 328.99 |
| -7 | 2439081 | 1965-11-16 | 330.11 |
| -6 | 2439410 | 1966-10-11 | 330.63 |
| -5 | 2439751 | 1967-09-17 | 331.69 |
| -4 | 2440076 | 1968-08-07 | 333.23 |
| -3 | 2440412 | 1969-07-09 | 334.25 |
| -2 | 2440755 | 1970-06-17 | 335.3 |
| -1 | 2441084 | 1971-05-12 | 336.18 |
| 0 | 2441417 | 1972-04-09 | 336.41 |
| 1 | 2441759 | 1973-03-17 | 336.99 |
| 2 | 2442095 | 1974-02-16 | 337.31 |
| 3 | 2442434 | 1975-01-21 | 337.53 |
| 4 | 2442777 | 1975-12-30 | 337.88 |
| 5 | 2443107 | 1976-11-24 | 337.74 |
| 6 | 2443445 | 1977-10-28 | 337.07 |
| 7 | 2443788 | 1978-10-06 | 335.58 |
| 8 | 2444125 | 1979-09-08 | 333.93 |
| 9 | 2444459 | 1980-08-07 | 332.43 |
| 10 | 2444794 | 1981-07-08 | 331.46 |
| 11 | 2445125 | 1982-06-04 | 330.42 |
| 12 | 2445438 | 1983-04-13 | 330.25 |
| 13 | 2445767 | 1984-03-07 | 330.61 |
| 14 | 2446098 | 1985-02-01 | 331.32 |
| 15 | 2446431 | 1985-12-31 | 332.24 |
| 16 | 2446764 | 1986-11-29 | 333.65 |
| 17 | 2447109 | 1987-11-09 | 334.7 |
| 18 | 2447442 | 1988-10-07 | 334.69 |
| 19 | 2447776 | 1989-09-06 | 334.96 |
| 20 | 2448110 | 1990-08-06 | 335.21 |
| 21 | 2448449 | 1991-07-11 | 335.28 |
| 22 | 2448775 | 1992-06-01 | 335.12 |
| 23 | 2449106 | 1993-04-28 | 335.41 |
| 24 | 2449451 | 1994-04-08 | 335.95 |
| 25 | 2449790 | 1995-03-13 | 335.99 |
| 26 | 2450125 | 1996-02-11 | 336.17 |
| 27 | 2450459 | 1997-01-10 | 336.76 |
| 28 | 2450794 | 1997-12-11 | 336.17 |
| 29 | 2451137 | 1998-11-19 | 335.3 |
| 30 | 2451464 | 1999-10-12 | 334.42 |
| 31 | 2451804 | 2000-09-16 | 334.34 |
| 32 | 2452145 | 2001-08-23 | 333.77 |
| 33 | 2452467 | 2002-07-11 | 332.95 |
| 34 | 2452802 | 2003-06-11 | 332.26 |
| 35 | 2453127 | 2004-05-01 | 332.6 |
| 36 | 2453473 | 2005-04-12 | 332.45 |
| 37 | 2453797 | 2006-03-02 | 333.03 |
| 38 | 2454125 | 2007-01-24 | 334.11 |
| 39 | 2454459 | 2007-12-24 | 334.56 |
| 40 | 2454803 | 2008-12-02 | 335 |
| 41 | 2455133 | 2009-10-28 | 335.03 |
| 42 | 2455475 | 2010-10-05 | 335.55 |
| 43 | 2455811 | 2011-09-06 | 335.32 |
| 44 | 2456144 | 2012-08-04 | 334.85 |
| 45 | 2456477 | 2013-07-03 | 333.55 |
| 46 | 2456813 | 2014-06-04 | 332.81 |
| 47 | 2457146 | 2015-05-03 | 332.25 |
| 48 | 2457475 | 2016-03-27 | 332.19 |
| 49 | 2457812 | 2017-02-27 | 332.43 |
| 50 | 2458130 | 2018-01-11 | 332.52 |
| 51 | 2458464 | 2018-12-11 | 332.81 |
| 52 | 2458804 | 2019-11-16 | 333.02 |
| 53 | 2459139 | 2020-10-16 | 333.38 |
| 54 | 2459475 | 2021-09-17 | 333.68 |
| 55 | 2459805 | 2022-08-13 | 334.63 |
| 56 | 2460142 | 2023-07-16 | 334.29 |
| 57 | 2460470 | 2024-06-08 | 333.4 |
| 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. |