| E | O (JD) | O (dat) | Period |
| -109 | 2413450 | 1895-09-13 | 253.67 |
| -106 | 2414200 | 1897-10-02 | 254.12 |
| -100 | 2415736 | 1901-12-17 | 254.8 |
| -99 | 2416000 | 1902-09-07 | 254.62 |
| -96 | 2416749 | 1904-09-25 | 254.63 |
| -95 | 2417010 | 1905-06-13 | 255.83 |
| -94 | 2417266 | 1906-02-24 | 255.78 |
| -93 | 2417522 | 1906-11-07 | 255.5 |
| -92 | 2417767 | 1907-07-10 | 256.86 |
| -91 | 2418053 | 1908-04-21 | 256.71 |
| -90 | 2418287 | 1908-12-11 | 257.14 |
| -89 | 2418550 | 1909-08-31 | 257.14 |
| -88 | 2418805 | 1910-05-13 | 254.57 |
| -87 | 2419065 | 1911-01-28 | 255.36 |
| -86 | 2419323 | 1911-10-13 | 257.29 |
| -85 | 2419566 | 1912-06-12 | 256 |
| -84 | 2419818 | 1913-02-19 | 256 |
| -83 | 2420097 | 1913-11-25 | 256.14 |
| -82 | 2420342 | 1914-07-28 | 257.93 |
| -81 | 2420597 | 1915-04-09 | 259.36 |
| -80 | 2420857 | 1915-12-25 | 258.29 |
| -79 | 2421117 | 1916-09-10 | 258.93 |
| -78 | 2421383 | 1917-06-03 | 260.71 |
| -77 | 2421632 | 1918-02-07 | 261.57 |
| -76 | 2421899 | 1918-11-01 | 261.93 |
| -75 | 2422165 | 1919-07-25 | 262.14 |
| -74 | 2422424 | 1920-04-09 | 263.79 |
| -73 | 2422692 | 1921-01-02 | 264.93 |
| -72 | 2422949 | 1921-09-16 | 264.43 |
| -71 | 2423221 | 1922-06-15 | 264.21 |
| -70 | 2423487 | 1923-03-08 | 263.43 |
| -69 | 2423753 | 1923-11-29 | 263.5 |
| -68 | 2424013 | 1924-08-15 | 263.29 |
| -67 | 2424275 | 1925-05-04 | 261.71 |
| -66 | 2424529 | 1926-01-13 | 260.5 |
| -65 | 2424801 | 1926-10-12 | 260.14 |
| -64 | 2425055 | 1927-06-23 | 262.14 |
| -63 | 2425317 | 1928-03-11 | 263.43 |
| -62 | 2425570 | 1928-11-19 | 262.57 |
| -61 | 2425838 | 1929-08-14 | 261.71 |
| -60 | 2426120 | 1930-05-23 | 262.07 |
| -59 | 2426372 | 1931-01-30 | 263.71 |
| -58 | 2426634 | 1931-10-19 | 264.07 |
| -57 | 2426886 | 1932-06-27 | 261.21 |
| -56 | 2427155 | 1933-03-23 | 261 |
| -55 | 2427424 | 1933-12-17 | 262.07 |
| -54 | 2427681 | 1934-08-31 | 262.29 |
| -53 | 2427934 | 1935-05-11 | 262.29 |
| -52 | 2428212 | 1936-02-13 | 261.43 |
| -51 | 2428463 | 1936-10-21 | 261.29 |
| -50 | 2428729 | 1937-07-14 | 262.64 |
| -49 | 2428984 | 1938-03-26 | 263.36 |
| -48 | 2429255 | 1938-12-22 | 262.64 |
| -47 | 2429508 | 1939-09-01 | 262.57 |
| -46 | 2429784 | 1940-06-03 | 262.29 |
| -45 | 2430049 | 1941-02-23 | 262.14 |
| -44 | 2430303 | 1941-11-04 | 263.14 |
| -43 | 2430565 | 1942-07-24 | 263.43 |
| -42 | 2430820 | 1943-04-05 | 264.14 |
| -41 | 2431089 | 1943-12-30 | 265.21 |
| -40 | 2431358 | 1944-09-24 | 265.5 |
| -39 | 2431622 | 1945-06-15 | 267.07 |
| -38 | 2431909 | 1946-03-29 | 267.36 |
| -37 | 2432156 | 1946-12-01 | 268.71 |
| -36 | 2432429 | 1947-08-31 | 269.5 |
| -35 | 2432695 | 1948-05-23 | 267.21 |
| -34 | 2432957 | 1949-02-09 | 266 |
| -33 | 2433252 | 1949-12-01 | 267.07 |
| -32 | 2433501 | 1950-08-07 | 268.21 |
| -31 | 2433771 | 1951-05-04 | 268.29 |
| -30 | 2434018 | 1952-01-06 | 267.14 |
| -29 | 2434306 | 1952-10-20 | 267.71 |
| -28 | 2434573 | 1953-07-14 | 268.64 |
| -27 | 2434835 | 1954-04-02 | 269 |
| -26 | 2435114 | 1955-01-06 | 268.57 |
| -25 | 2435387 | 1955-10-06 | 267.93 |
| -24 | 2435646 | 1956-06-21 | 268.36 |
| -23 | 2435909 | 1957-03-11 | 268 |
| -22 | 2436175 | 1957-12-02 | 268.5 |
| -21 | 2436455 | 1958-09-08 | 269.43 |
| -20 | 2436710 | 1959-05-21 | 270.64 |
| -19 | 2436991 | 1960-02-26 | 270.71 |
| -18 | 2437269 | 1960-11-30 | 269.64 |
| -17 | 2437536 | 1961-08-24 | 270.86 |
| -16 | 2437808 | 1962-05-23 | 271.93 |
| -15 | 2438066 | 1963-02-05 | 270.64 |
| -14 | 2438339 | 1963-11-05 | 270.43 |
| -13 | 2438618 | 1964-08-10 | 270.79 |
| -12 | 2438890 | 1965-05-09 | 270.64 |
| -11 | 2439159 | 1966-02-02 | 271.79 |
| -10 | 2439432 | 1966-11-02 | 271.07 |
| -9 | 2439703 | 1967-07-31 | 270.57 |
| -8 | 2439960 | 1968-04-13 | 272.79 |
| -7 | 2440250 | 1969-01-28 | 273.36 |
| -6 | 2440502 | 1969-10-07 | 273 |
| -5 | 2440794 | 1970-07-26 | 274.36 |
| -4 | 2441074 | 1971-05-02 | 275.93 |
| -3 | 2441344 | 1972-01-27 | 277.21 |
| -2 | 2441613 | 1972-10-22 | 278.07 |
| -1 | 2441891 | 1973-07-27 | 277.21 |
| 0 | 2442182 | 1974-05-14 | 276.93 |
| 1 | 2442451 | 1975-02-07 | 278.29 |
| 2 | 2442738 | 1975-11-21 | 279.07 |
| 3 | 2443011 | 1976-08-20 | 278.21 |
| 4 | 2443284 | 1977-05-20 | 278.36 |
| 5 | 2443569 | 1978-03-01 | 279.21 |
| 6 | 2443842 | 1978-11-29 | 279.64 |
| 7 | 2444126 | 1979-09-09 | 280.71 |
| 8 | 2444404 | 1980-06-13 | 280.93 |
| 9 | 2444694 | 1981-03-30 | 280.21 |
| 10 | 2444970 | 1981-12-31 | 280.29 |
| 11 | 2445255 | 1982-10-12 | 280.36 |
| 12 | 2445531 | 1983-07-15 | 279.86 |
| 13 | 2445803 | 1984-04-12 | 279.71 |
| 14 | 2446089 | 1985-01-23 | 279.29 |
| 15 | 2446366 | 1985-10-27 | 279.43 |
| 16 | 2446650 | 1986-08-07 | 281.21 |
| 17 | 2446930 | 1987-05-14 | 281.64 |
| 18 | 2447205 | 1988-02-13 | 281.29 |
| 19 | 2447493 | 1988-11-27 | 281.71 |
| 20 | 2447778 | 1989-09-08 | 281.64 |
| 21 | 2448057 | 1990-06-14 | 281.21 |
| 22 | 2448336 | 1991-03-20 | 280.93 |
| 23 | 2448624 | 1992-01-02 | 280.07 |
| 24 | 2448899 | 1992-10-03 | 279.14 |
| 25 | 2449173 | 1993-07-04 | 278.79 |
| 26 | 2449458 | 1994-04-15 | 278.5 |
| 27 | 2449734 | 1995-01-16 | 278.36 |
| 28 | 2450009 | 1995-10-18 | 279 |
| 29 | 2450287 | 1996-07-22 | 279.29 |
| 30 | 2450572 | 1997-05-03 | 279.36 |
| 31 | 2450848 | 1998-02-03 | 280.21 |
| 32 | 2451130 | 1998-11-12 | 279.93 |
| 33 | 2451411 | 1999-08-20 | 280.21 |
| 34 | 2451692 | 2000-05-27 | 282.14 |
| 35 | 2451974 | 2001-03-05 | 283.14 |
| 36 | 2452241 | 2001-11-27 | 283.21 |
| 37 | 2452541 | 2002-09-23 | 283.07 |
| 38 | 2452829 | 2003-07-08 | 283.79 |
| 39 | 2453113 | 2004-04-17 | 287.21 |
| 40 | 2453393 | 2005-01-22 | 289.14 |
| 41 | 2453673 | 2005-10-29 | 288.07 |
| 42 | 2453966 | 2006-08-18 | 288.43 |
| 43 | 2454270 | 2007-06-18 | 289.79 |
| 44 | 2454560 | 2008-04-03 | 290.86 |
| 45 | 2454843 | 2009-01-11 | 291.07 |
| 46 | 2455137 | 2009-11-01 | 290.07 |
| 47 | 2455426 | 2010-08-17 | 288.29 |
| 48 | 2455712 | 2011-05-30 | 287.64 |
| 49 | 2456002 | 2012-03-15 | 288.57 |
| 50 | 2456295 | 2013-01-02 | 289 |
| 51 | 2456571 | 2013-10-05 | 289 |
| 52 | 2456859 | 2014-07-20 | 289.79 |
| 53 | 2457161 | 2015-05-18 | 289.79 |
| 54 | 2457448 | 2016-02-29 | 290.5 |
| 55 | 2457736 | 2016-12-13 | 291.57 |
| 56 | 2458035 | 2017-10-08 | 290.29 |
| 57 | 2458319 | 2018-07-19 | 289.43 |
| 58 | 2458614 | 2019-05-10 | 289.57 |
| 59 | 2458898 | 2020-02-18 | 289 |
| 60 | 2459186 | 2020-12-02 | 288.63 |
| 61 | 2459475 | 2021-09-17 | 288 |
| 62 | 2459763 | 2022-07-02 | 286.6 |
| 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. |