| E | O (JD) | O (dat) | Period |
| -127 | 2407752 | 1880-02-06 | 275.71 |
| -126 | 2408029 | 1880-11-09 | 275.58 |
| -124 | 2408572 | 1882-05-06 | 276.08 |
| -123 | 2408862 | 1883-02-20 | 276.59 |
| -119 | 2409958 | 1886-02-20 | 276 |
| -118 | 2410232 | 1886-11-21 | 276 |
| -115 | 2411068 | 1889-03-06 | 276.05 |
| -111 | 2412177 | 1892-03-19 | 275.57 |
| -107 | 2413264 | 1895-03-11 | 275.62 |
| -106 | 2413549 | 1895-12-21 | 275.73 |
| -103 | 2414375 | 1898-03-26 | 275.1 |
| -102 | 2414641 | 1898-12-17 | 274.91 |
| -101 | 2414920 | 1899-09-22 | 274.62 |
| -99 | 2415479 | 1901-04-04 | 273.3 |
| -98 | 2415744 | 1901-12-25 | 273.72 |
| -97 | 2416020 | 1902-09-27 | 274.39 |
| -95 | 2416560 | 1904-03-20 | 274.06 |
| -94 | 2416830 | 1904-12-15 | 275.56 |
| -93 | 2417113 | 1905-09-24 | 277.5 |
| -92 | 2417387 | 1906-06-25 | 278.31 |
| -91 | 2417671 | 1907-04-05 | 278.94 |
| -90 | 2417961 | 1908-01-20 | 279.37 |
| -89 | 2418243 | 1908-10-28 | 279.47 |
| -87 | 2418790 | 1910-04-28 | 279.61 |
| -86 | 2419063 | 1911-01-26 | 278.33 |
| -85 | 2419350 | 1911-11-09 | 276.61 |
| -83 | 2419901 | 1913-05-13 | 277.59 |
| -82 | 2420190 | 1914-02-26 | 279 |
| -81 | 2420452 | 1914-11-15 | 278.12 |
| -80 | 2420731 | 1915-08-21 | 276.33 |
| -79 | 2421021 | 1916-06-06 | 274.07 |
| -78 | 2421296 | 1917-03-08 | 273.43 |
| -77 | 2421567 | 1917-12-04 | 274.57 |
| -76 | 2421829 | 1918-08-23 | 272.21 |
| -75 | 2422099 | 1919-05-20 | 270.64 |
| -74 | 2422371 | 1920-02-16 | 271.71 |
| -73 | 2422656 | 1920-11-27 | 272 |
| -72 | 2422907 | 1921-08-05 | 272.21 |
| -71 | 2423199 | 1922-05-24 | 272.14 |
| -70 | 2423468 | 1923-02-17 | 271.57 |
| -69 | 2423736 | 1923-11-12 | 271.71 |
| -68 | 2424003 | 1924-08-05 | 269.93 |
| -67 | 2424277 | 1925-05-06 | 268.43 |
| -66 | 2424552 | 1926-02-05 | 269.43 |
| -65 | 2424815 | 1926-10-26 | 269.07 |
| -64 | 2425070 | 1927-07-08 | 268.86 |
| -63 | 2425355 | 1928-04-18 | 268.36 |
| -62 | 2425621 | 1929-01-09 | 269.07 |
| -61 | 2425885 | 1929-09-30 | 272.21 |
| -60 | 2426159 | 1930-07-01 | 273.14 |
| -59 | 2426427 | 1931-03-26 | 272.07 |
| -58 | 2426707 | 1931-12-31 | 272.5 |
| -57 | 2426989 | 1932-10-08 | 273.5 |
| -56 | 2427260 | 1933-07-06 | 274.71 |
| -55 | 2427525 | 1934-03-28 | 275 |
| -54 | 2427796 | 1934-12-24 | 275.21 |
| -53 | 2428077 | 1935-10-01 | 275.79 |
| -52 | 2428355 | 1936-07-05 | 278.07 |
| -51 | 2428629 | 1937-04-05 | 281.57 |
| -50 | 2428920 | 1938-01-21 | 281.79 |
| -49 | 2429190 | 1938-10-18 | 280.93 |
| -48 | 2429488 | 1939-08-12 | 280.86 |
| -47 | 2429775 | 1940-05-25 | 279.93 |
| -46 | 2430043 | 1941-02-17 | 281.29 |
| -45 | 2430322 | 1941-11-23 | 283.14 |
| -44 | 2430594 | 1942-08-22 | 281.79 |
| -43 | 2430874 | 1943-05-29 | 282.93 |
| -42 | 2431174 | 1944-03-24 | 284.71 |
| -41 | 2431468 | 1945-01-12 | 283.5 |
| -40 | 2431740 | 1945-10-11 | 282.29 |
| -39 | 2432039 | 1946-08-06 | 278.36 |
| -38 | 2432312 | 1947-05-06 | 273.5 |
| -37 | 2432573 | 1948-01-22 | 273.21 |
| -36 | 2432847 | 1948-10-22 | 272.64 |
| -35 | 2433098 | 1949-06-30 | 269.5 |
| -34 | 2433373 | 1950-04-01 | 269.29 |
| -33 | 2433660 | 1951-01-13 | 270.64 |
| -32 | 2433936 | 1951-10-16 | 271.79 |
| -31 | 2434188 | 1952-06-24 | 272 |
| -30 | 2434467 | 1953-03-30 | 269.86 |
| -29 | 2434742 | 1953-12-30 | 269.07 |
| -28 | 2435008 | 1954-09-22 | 270.93 |
| -27 | 2435271 | 1955-06-12 | 272.07 |
| -26 | 2435540 | 1956-03-07 | 271.5 |
| -25 | 2435823 | 1956-12-15 | 271.14 |
| -24 | 2436094 | 1957-09-12 | 272 |
| -23 | 2436370 | 1958-06-15 | 273.21 |
| -22 | 2436640 | 1959-03-12 | 272.57 |
| -21 | 2436906 | 1959-12-03 | 272.43 |
| -20 | 2437181 | 1960-09-03 | 273.29 |
| -19 | 2437455 | 1961-06-04 | 273.5 |
| -18 | 2437724 | 1962-02-28 | 274.71 |
| -17 | 2438007 | 1962-12-08 | 275.57 |
| -16 | 2438283 | 1963-09-10 | 275.5 |
| -15 | 2438556 | 1964-06-09 | 276.21 |
| -14 | 2438836 | 1965-03-16 | 275.36 |
| -13 | 2439109 | 1965-12-14 | 274.29 |
| -12 | 2439384 | 1966-09-15 | 275.14 |
| -11 | 2439662 | 1967-06-20 | 275.29 |
| -10 | 2439924 | 1968-03-08 | 274.86 |
| -9 | 2440206 | 1968-12-15 | 274.93 |
| -8 | 2440485 | 1969-09-20 | 274.79 |
| -7 | 2440761 | 1970-06-23 | 275.79 |
| -6 | 2441032 | 1971-03-21 | 276.86 |
| -5 | 2441310 | 1971-12-24 | 275.71 |
| -4 | 2441583 | 1972-09-22 | 274.93 |
| -3 | 2441864 | 1973-06-30 | 275.29 |
| -2 | 2442142 | 1974-04-04 | 276.21 |
| -1 | 2442409 | 1974-12-27 | 276.86 |
| 0 | 2442686 | 1975-09-30 | 276.64 |
| 1 | 2442961 | 1976-07-01 | 276 |
| 2 | 2443248 | 1977-04-14 | 276.21 |
| 3 | 2443521 | 1978-01-12 | 277.14 |
| 4 | 2443799 | 1978-10-17 | 277.14 |
| 5 | 2444071 | 1979-07-16 | 276.29 |
| 6 | 2444347 | 1980-04-17 | 276.21 |
| 7 | 2444628 | 1981-01-23 | 276.07 |
| 8 | 2444899 | 1981-10-21 | 275.71 |
| 9 | 2445178 | 1982-07-27 | 275.36 |
| 10 | 2445458 | 1983-05-03 | 273.86 |
| 11 | 2445727 | 1984-01-27 | 273.36 |
| 12 | 2446003 | 1984-10-29 | 273.57 |
| 13 | 2446270 | 1985-07-23 | 272.93 |
| 14 | 2446539 | 1986-04-18 | 273.79 |
| 15 | 2446815 | 1987-01-19 | 275.5 |
| 16 | 2447092 | 1987-10-23 | 276.79 |
| 17 | 2447365 | 1988-07-22 | 278.57 |
| 18 | 2447653 | 1989-05-06 | 278.07 |
| 19 | 2447934 | 1990-02-11 | 277.14 |
| 20 | 2448214 | 1990-11-18 | 277.71 |
| 21 | 2448495 | 1991-08-26 | 276.71 |
| 22 | 2448752 | 1992-05-09 | 275.14 |
| 23 | 2449035 | 1993-02-16 | 274.36 |
| 24 | 2449310 | 1993-11-18 | 273.43 |
| 25 | 2449582 | 1994-08-17 | 273.93 |
| 26 | 2449857 | 1995-05-19 | 274.14 |
| 27 | 2450132 | 1996-02-18 | 273.93 |
| 28 | 2450405 | 1996-11-17 | 275 |
| 29 | 2450677 | 1997-08-16 | 275.5 |
| 30 | 2450948 | 1998-05-14 | 275.29 |
| 31 | 2451232 | 1999-02-22 | 274.93 |
| 32 | 2451510 | 1999-11-27 | 275.64 |
| 33 | 2451786 | 2000-08-29 | 276.14 |
| 34 | 2452057 | 2001-05-27 | 275.07 |
| 35 | 2452329 | 2002-02-23 | 274.36 |
| 36 | 2452612 | 2002-12-03 | 273.79 |
| 37 | 2452879 | 2003-08-27 | 273.07 |
| 38 | 2453152 | 2004-05-26 | 273.71 |
| 39 | 2453431 | 2005-03-01 | 273.93 |
| 40 | 2453698 | 2005-11-23 | 273.64 |
| 41 | 2453968 | 2006-08-20 | 273.93 |
| 42 | 2454250 | 2007-05-29 | 273.71 |
| 43 | 2454526 | 2008-02-29 | 273.36 |
| 44 | 2454796 | 2008-11-25 | 273.64 |
| 45 | 2455070 | 2009-08-26 | 273.5 |
| 46 | 2455345 | 2010-05-28 | 274.43 |
| 47 | 2455611 | 2011-02-18 | 275.64 |
| 48 | 2455886 | 2011-11-20 | 276.14 |
| 49 | 2456161 | 2012-08-21 | 277.14 |
| 50 | 2456457 | 2013-06-13 | 278.43 |
| 51 | 2456724 | 2014-03-07 | 278.64 |
| 52 | 2457008 | 2014-12-16 | 277.93 |
| 53 | 2457287 | 2015-09-21 | 277.14 |
| 54 | 2457567 | 2016-06-27 | 277.5 |
| 55 | 2457831 | 2017-03-18 | 277.64 |
| 56 | 2458107 | 2017-12-19 | 276.36 |
| 57 | 2458391 | 2018-09-29 | 275.57 |
| 58 | 2458675 | 2019-07-10 | 275.5 |
| 59 | 2458944 | 2020-04-04 | 276.75 |
| 60 | 2459220 | 2021-01-05 | 277.09 |
| 61 | 2459492 | 2021-10-04 | 273.92 |
| 62 | 2459763 | 2022-07-02 | 271.9 |
| 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. |