| E | O (JD) | O (dat) | Period |
| -116 | 2400904 | 1861-05-08 | 337.05 |
| -115 | 2401242 | 1862-04-11 | 337.35 |
| -114 | 2401571 | 1863-03-06 | 337.69 |
| -113 | 2401910 | 1864-02-08 | 338.98 |
| -105 | 2404600 | 1871-06-21 | 339.22 |
| -104 | 2404955 | 1872-06-10 | 339.43 |
| -102 | 2405628 | 1874-04-14 | 339.76 |
| -101 | 2405973 | 1875-03-25 | 340 |
| -76 | 2414462 | 1898-06-21 | 340.17 |
| -75 | 2414808 | 1899-06-02 | 340.44 |
| -74 | 2415160 | 1900-05-20 | 340.39 |
| -73 | 2415514 | 1901-05-09 | 340.53 |
| -72 | 2415848 | 1902-04-08 | 340.55 |
| -71 | 2416184 | 1903-03-10 | 341.71 |
| -70 | 2416528 | 1904-02-17 | 340.58 |
| -68 | 2417210 | 1905-12-30 | 339.68 |
| -67 | 2417552 | 1906-12-07 | 338.52 |
| -66 | 2417886 | 1907-11-06 | 338.88 |
| -65 | 2418226 | 1908-10-11 | 339.04 |
| -64 | 2418560 | 1909-09-10 | 338.12 |
| -63 | 2418902 | 1910-08-18 | 337.62 |
| -62 | 2419224 | 1911-07-06 | 337.65 |
| -61 | 2419584 | 1912-06-30 | 337.89 |
| -60 | 2419924 | 1913-06-05 | 337.86 |
| -59 | 2420243 | 1914-04-20 | 338.51 |
| -58 | 2420586 | 1915-03-29 | 337.45 |
| -57 | 2420928 | 1916-03-05 | 336.75 |
| -56 | 2421266 | 1917-02-06 | 336.25 |
| -55 | 2421602 | 1918-01-08 | 336.39 |
| -54 | 2421952 | 1918-12-24 | 337.02 |
| -53 | 2422259 | 1919-10-27 | 336.42 |
| -52 | 2422596 | 1920-09-28 | 336.07 |
| -51 | 2422953 | 1921-09-20 | 335.85 |
| -50 | 2423281 | 1922-08-14 | 336.4 |
| -49 | 2423623 | 1923-07-22 | 337.17 |
| -48 | 2423953 | 1924-06-16 | 339.1 |
| -47 | 2424289 | 1925-05-18 | 339.35 |
| -46 | 2424622 | 1926-04-16 | 339.66 |
| -45 | 2424972 | 1927-04-01 | 340.77 |
| -44 | 2425315 | 1928-03-09 | 341.95 |
| -43 | 2425663 | 1929-02-20 | 343.07 |
| -42 | 2426000 | 1930-01-23 | 343.2 |
| -41 | 2426345 | 1931-01-03 | 343.72 |
| -40 | 2426684 | 1931-12-08 | 343.27 |
| -39 | 2427038 | 1932-11-26 | 342.95 |
| -38 | 2427378 | 1933-11-01 | 342.03 |
| -37 | 2427711 | 1934-09-30 | 342.07 |
| -36 | 2428068 | 1935-09-22 | 341.56 |
| -35 | 2428403 | 1936-08-22 | 341.08 |
| -34 | 2428742 | 1937-07-27 | 340.49 |
| -33 | 2429071 | 1938-06-21 | 340.72 |
| -32 | 2429426 | 1939-06-11 | 340.22 |
| -31 | 2429762 | 1940-05-12 | 339.42 |
| -30 | 2430101 | 1941-04-16 | 339.83 |
| -29 | 2430443 | 1942-03-24 | 338.52 |
| -28 | 2430788 | 1943-03-04 | 337.6 |
| -27 | 2431114 | 1944-01-24 | 335.81 |
| -26 | 2431455 | 1944-12-30 | 335.44 |
| -25 | 2431802 | 1945-12-12 | 335.06 |
| -24 | 2432109 | 1946-10-15 | 335.07 |
| -23 | 2432452 | 1947-09-23 | 335.42 |
| -22 | 2432780 | 1948-08-16 | 336.48 |
| -21 | 2433127 | 1949-07-29 | 337.35 |
| -20 | 2433464 | 1950-07-01 | 338.12 |
| -19 | 2433806 | 1951-06-08 | 339.62 |
| -18 | 2434144 | 1952-05-11 | 340.04 |
| -17 | 2434486 | 1953-04-18 | 340.87 |
| -16 | 2434830 | 1954-03-28 | 340.83 |
| -15 | 2435162 | 1955-02-23 | 341.05 |
| -14 | 2435503 | 1956-01-30 | 341.23 |
| -13 | 2435851 | 1957-01-12 | 341.63 |
| -12 | 2436197 | 1957-12-24 | 341.68 |
| -11 | 2436533 | 1958-11-25 | 341.93 |
| -10 | 2436873 | 1959-10-31 | 342.31 |
| -9 | 2437217 | 1960-10-09 | 341.96 |
| -8 | 2437562 | 1961-09-19 | 341.25 |
| -7 | 2437900 | 1962-08-23 | 340.82 |
| -6 | 2438245 | 1963-08-03 | 340.65 |
| -5 | 2438587 | 1964-07-10 | 339.92 |
| -4 | 2438924 | 1965-06-12 | 338.79 |
| -3 | 2439259 | 1966-05-13 | 338.25 |
| -2 | 2439599 | 1967-04-18 | 337.95 |
| -1 | 2439939 | 1968-03-23 | 337.46 |
| 0 | 2440272 | 1969-02-19 | 337.45 |
| 1 | 2440603 | 1970-01-16 | 337.71 |
| 2 | 2440949 | 1970-12-28 | 338.03 |
| 3 | 2441287 | 1971-12-01 | 338.18 |
| 4 | 2441622 | 1972-10-31 | 338.65 |
| 5 | 2441963 | 1973-10-07 | 339.35 |
| 6 | 2442302 | 1974-09-11 | 339.56 |
| 7 | 2442642 | 1975-08-17 | 339.31 |
| 8 | 2442980 | 1976-07-20 | 339.38 |
| 9 | 2443323 | 1977-06-28 | 339.55 |
| 10 | 2443665 | 1978-06-05 | 339.19 |
| 11 | 2444000 | 1979-05-06 | 339.12 |
| 12 | 2444338 | 1980-04-08 | 338.93 |
| 13 | 2444677 | 1981-03-13 | 338.83 |
| 14 | 2445019 | 1982-02-18 | 338.71 |
| 15 | 2445352 | 1983-01-17 | 338.42 |
| 16 | 2445695 | 1983-12-26 | 338.65 |
| 17 | 2446032 | 1984-11-27 | 338.8 |
| 18 | 2446372 | 1985-11-02 | 339.13 |
| 19 | 2446712 | 1986-10-08 | 339.31 |
| 20 | 2447043 | 1987-09-04 | 340.57 |
| 21 | 2447388 | 1988-08-14 | 341.81 |
| 22 | 2447729 | 1989-07-21 | 342.68 |
| 23 | 2448073 | 1990-06-30 | 342.99 |
| 24 | 2448410 | 1991-06-02 | 343.15 |
| 25 | 2448770 | 1992-05-27 | 342.78 |
| 26 | 2449120 | 1993-05-12 | 341.85 |
| 27 | 2449454 | 1994-04-11 | 340.2 |
| 28 | 2449789 | 1995-03-12 | 338.7 |
| 29 | 2450129 | 1996-02-15 | 337.42 |
| 30 | 2450461 | 1997-01-12 | 336.43 |
| 31 | 2450801 | 1997-12-18 | 336.52 |
| 32 | 2451123 | 1998-11-05 | 337.24 |
| 33 | 2451464 | 1999-10-12 | 337.82 |
| 34 | 2451803 | 2000-09-15 | 337.87 |
| 35 | 2452151 | 2001-08-29 | 337.91 |
| 36 | 2452491 | 2002-08-04 | 337.51 |
| 37 | 2452829 | 2003-07-08 | 337.02 |
| 38 | 2453167 | 2004-06-10 | 335.5 |
| 39 | 2453496 | 2005-05-05 | 334.65 |
| 40 | 2453829 | 2006-04-03 | 334.02 |
| 41 | 2454161 | 2007-03-01 | 334 |
| 42 | 2454491 | 2008-01-25 | 334.45 |
| 43 | 2454820 | 2008-12-19 | 335.05 |
| 44 | 2455165 | 2009-11-29 | 336.66 |
| 45 | 2455503 | 2010-11-02 | 338.04 |
| 46 | 2455839 | 2011-10-04 | 340.15 |
| 47 | 2456179 | 2012-09-08 | 340.88 |
| 48 | 2456514 | 2013-08-09 | 341.57 |
| 49 | 2456868 | 2014-07-29 | 342.09 |
| 50 | 2457208 | 2015-07-04 | 342.16 |
| 51 | 2457567 | 2016-06-27 | 342.01 |
| 52 | 2457886 | 2017-05-12 | 341.42 |
| 53 | 2458234 | 2018-04-25 | 341.1 |
| 54 | 2458584 | 2019-04-10 | 340.27 |
| 55 | 2458913 | 2020-03-04 | 339.88 |
| 56 | 2459252 | 2021-02-06 | 339.14 |
| 57 | 2459589 | 2022-01-09 | 340.39 |
| 58 | 2459937 | 2022-12-23 | 339.11 |
| 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. |