| E | O (JD) | O (dat) | Period |
| -110 | 2410144 | 1886-08-25 | 280.73 |
| -106 | 2411260 | 1889-09-14 | 280.36 |
| -101 | 2412670 | 1893-07-25 | 280.01 |
| -97 | 2413790 | 1896-08-18 | 279.8 |
| -94 | 2414637 | 1898-12-13 | 279.75 |
| -93 | 2414911 | 1899-09-13 | 279.77 |
| -89 | 2416024 | 1902-10-01 | 279.78 |
| -88 | 2416295 | 1903-06-29 | 279.6 |
| -86 | 2416855 | 1905-01-09 | 279.98 |
| -85 | 2417140 | 1905-10-21 | 280.73 |
| -84 | 2417423 | 1906-07-31 | 281.74 |
| -81 | 2418270 | 1908-11-24 | 282.57 |
| -80 | 2418549 | 1909-08-30 | 282.91 |
| -79 | 2418840 | 1910-06-17 | 282.87 |
| -76 | 2419690 | 1912-10-14 | 282.4 |
| -75 | 2419975 | 1913-07-26 | 282.03 |
| -72 | 2420815 | 1915-11-13 | 281.36 |
| -71 | 2421100 | 1916-08-24 | 280.42 |
| -70 | 2421378 | 1917-05-29 | 280.06 |
| -69 | 2421648 | 1918-02-23 | 279.7 |
| -68 | 2421931 | 1918-12-03 | 279.82 |
| -67 | 2422202 | 1919-08-31 | 280.27 |
| -66 | 2422472 | 1920-05-27 | 280.77 |
| -65 | 2422782 | 1921-04-02 | 281.39 |
| -64 | 2423058 | 1922-01-03 | 282.22 |
| -63 | 2423339 | 1922-10-11 | 282.28 |
| -62 | 2423620 | 1923-07-19 | 281.68 |
| -61 | 2423902 | 1924-04-26 | 280.84 |
| -60 | 2424180 | 1925-01-29 | 279.11 |
| -59 | 2424467 | 1925-11-12 | 278.82 |
| -58 | 2424744 | 1926-08-16 | 278.53 |
| -57 | 2425009 | 1927-05-08 | 278.55 |
| -56 | 2425294 | 1928-02-17 | 278.94 |
| -55 | 2425569 | 1928-11-18 | 279.66 |
| -54 | 2425848 | 1929-08-24 | 280.44 |
| -53 | 2426130 | 1930-06-02 | 280.92 |
| -52 | 2426414 | 1931-03-13 | 282.15 |
| -51 | 2426700 | 1931-12-24 | 282.62 |
| -50 | 2426985 | 1932-10-04 | 283.28 |
| -49 | 2427269 | 1933-07-15 | 283.29 |
| -48 | 2427536 | 1934-04-08 | 283.48 |
| -47 | 2427834 | 1935-01-31 | 282.68 |
| -46 | 2428117 | 1935-11-10 | 281.85 |
| -45 | 2428401 | 1936-08-20 | 281.72 |
| -44 | 2428678 | 1937-05-24 | 281.87 |
| -43 | 2428969 | 1938-03-11 | 282.07 |
| -42 | 2429233 | 1938-11-30 | 280.96 |
| -41 | 2429512 | 1939-09-05 | 280.75 |
| -40 | 2429804 | 1940-06-23 | 280.42 |
| -39 | 2430089 | 1941-04-04 | 281.05 |
| -38 | 2430370 | 1942-01-10 | 280.88 |
| -37 | 2430641 | 1942-10-08 | 281.51 |
| -36 | 2430924 | 1943-07-18 | 281.1 |
| -35 | 2431200 | 1944-04-19 | 280.85 |
| -34 | 2431497 | 1945-02-10 | 281.35 |
| -33 | 2431766 | 1945-11-06 | 281.85 |
| -32 | 2432052 | 1946-08-19 | 282.52 |
| -31 | 2432329 | 1947-05-23 | 282.67 |
| -30 | 2432617 | 1948-03-06 | 282.18 |
| -29 | 2432904 | 1948-12-18 | 281.53 |
| -28 | 2433182 | 1949-09-22 | 281.55 |
| -27 | 2433467 | 1950-07-04 | 280.76 |
| -26 | 2433750 | 1951-04-13 | 280.61 |
| -25 | 2434018 | 1952-01-06 | 280.21 |
| -24 | 2434302 | 1952-10-16 | 280.22 |
| -23 | 2434581 | 1953-07-22 | 280.54 |
| -22 | 2434857 | 1954-04-24 | 280.77 |
| -21 | 2435146 | 1955-02-07 | 281.59 |
| -20 | 2435427 | 1955-11-15 | 282.12 |
| -19 | 2435710 | 1956-08-24 | 282.04 |
| -18 | 2435991 | 1957-06-01 | 282.05 |
| -17 | 2436273 | 1958-03-10 | 282.31 |
| -16 | 2436562 | 1958-12-24 | 282.34 |
| -15 | 2436835 | 1959-09-23 | 282.48 |
| -14 | 2437117 | 1960-07-01 | 282.45 |
| -13 | 2437398 | 1961-04-08 | 282.39 |
| -12 | 2437688 | 1962-01-23 | 282.68 |
| -11 | 2437973 | 1962-11-04 | 282.69 |
| -10 | 2438252 | 1963-08-10 | 283.2 |
| -9 | 2438532 | 1964-05-16 | 282.77 |
| -8 | 2438813 | 1965-02-21 | 282.54 |
| -7 | 2439104 | 1965-12-09 | 282.16 |
| -6 | 2439382 | 1966-09-13 | 282.32 |
| -5 | 2439668 | 1967-06-26 | 282.31 |
| -4 | 2439941 | 1968-03-25 | 281.98 |
| -3 | 2440228 | 1969-01-06 | 281.58 |
| -2 | 2440510 | 1969-10-15 | 281.55 |
| -1 | 2440796 | 1970-07-28 | 281.85 |
| 0 | 2441072 | 1971-04-30 | 281.78 |
| 1 | 2441350 | 1972-02-02 | 281.59 |
| 2 | 2441632 | 1972-11-10 | 281.55 |
| 3 | 2441923 | 1973-08-28 | 281.36 |
| 4 | 2442203 | 1974-06-04 | 281.48 |
| 5 | 2442481 | 1975-03-09 | 281.8 |
| 6 | 2442755 | 1975-12-08 | 281.77 |
| 7 | 2443048 | 1976-09-26 | 281.47 |
| 8 | 2443322 | 1977-06-27 | 281.24 |
| 9 | 2443609 | 1978-04-10 | 281.27 |
| 10 | 2443890 | 1979-01-16 | 281.06 |
| 11 | 2444170 | 1979-10-23 | 280.85 |
| 12 | 2444450 | 1980-07-29 | 280.47 |
| 13 | 2444733 | 1981-05-08 | 280.81 |
| 14 | 2445010 | 1982-02-09 | 281.5 |
| 15 | 2445286 | 1982-11-12 | 282.05 |
| 16 | 2445569 | 1983-08-22 | 282.5 |
| 17 | 2445854 | 1984-06-02 | 282.35 |
| 18 | 2446138 | 1985-03-13 | 283.05 |
| 19 | 2446435 | 1986-01-04 | 283.21 |
| 20 | 2446710 | 1986-10-06 | 283.6 |
| 21 | 2446991 | 1987-07-14 | 284.03 |
| 22 | 2447262 | 1988-04-10 | 283.67 |
| 23 | 2447563 | 1989-02-05 | 283.58 |
| 24 | 2447834 | 1989-11-03 | 283.45 |
| 25 | 2448127 | 1990-08-23 | 284.35 |
| 26 | 2448420 | 1991-06-12 | 284.86 |
| 27 | 2448690 | 1992-03-08 | 285.19 |
| 28 | 2448978 | 1992-12-21 | 284.25 |
| 29 | 2449261 | 1993-09-30 | 284.31 |
| 30 | 2449552 | 1994-07-18 | 283.44 |
| 31 | 2449837 | 1995-04-29 | 282.73 |
| 32 | 2450121 | 1996-02-07 | 283.74 |
| 33 | 2450394 | 1996-11-06 | 283.57 |
| 34 | 2450681 | 1997-08-20 | 283.76 |
| 35 | 2450959 | 1998-05-25 | 282.99 |
| 36 | 2451236 | 1999-02-26 | 283.76 |
| 37 | 2451544 | 1999-12-31 | 284.61 |
| 38 | 2451819 | 2000-10-01 | 285.11 |
| 39 | 2452107 | 2001-07-16 | 285 |
| 40 | 2452372 | 2002-04-07 | 285.36 |
| 41 | 2452679 | 2003-02-08 | 284.85 |
| 42 | 2452964 | 2003-11-20 | 283.7 |
| 43 | 2453241 | 2004-08-23 | 284.14 |
| 44 | 2453524 | 2005-06-02 | 284.18 |
| 45 | 2453816 | 2006-03-21 | 283.64 |
| 46 | 2454090 | 2006-12-20 | 282.48 |
| 47 | 2454370 | 2007-09-26 | 281.78 |
| 48 | 2454662 | 2008-07-14 | 282.15 |
| 49 | 2454947 | 2009-04-25 | 282.77 |
| 50 | 2455214 | 2010-01-17 | 283.05 |
| 51 | 2455504 | 2010-11-03 | 283.94 |
| 52 | 2455772 | 2011-07-29 | 284.12 |
| 53 | 2456072 | 2012-05-24 | 284.02 |
| 54 | 2456367 | 2013-03-15 | 283.77 |
| 55 | 2456645 | 2013-12-18 | 283.6 |
| 56 | 2456932 | 2014-10-01 | 282.65 |
| 57 | 2457211 | 2015-07-07 | 282.33 |
| 58 | 2457493 | 2016-04-14 | 280.3 |
| 59 | 2457764 | 2017-01-10 | 279.59 |
| 60 | 2458044 | 2017-10-17 | 279.61 |
| 61 | 2458326 | 2018-07-26 | 279.55 |
| 62 | 2458614 | 2019-05-10 | 279.69 |
| 63 | 2458877 | 2020-01-28 | 279.88 |
| 64 | 2459167 | 2020-11-13 | 280.49 |
| 65 | 2459448 | 2021-08-21 | 280.43 |
| 66 | 2459729 | 2022-05-29 | 280.2 |
| 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. |