| E | O (JD) | O (dat) | Period |
| -104 | 2415494 | 1901-04-19 | 335.8 |
| -103 | 2415818 | 1902-03-09 | 333.17 |
| -102 | 2416158 | 1903-02-12 | 331.46 |
| -101 | 2416480 | 1903-12-31 | 332.22 |
| -100 | 2416827 | 1904-12-12 | 334 |
| -99 | 2417147 | 1905-10-28 | 334.71 |
| -98 | 2417484 | 1906-09-30 | 334.79 |
| -97 | 2417819 | 1907-08-31 | 333.4 |
| -96 | 2418169 | 1908-08-15 | 331.63 |
| -95 | 2418493 | 1909-07-05 | 331.69 |
| -94 | 2418832 | 1910-06-09 | 331 |
| -92 | 2419476 | 1912-03-14 | 329 |
| -91 | 2419804 | 1913-02-05 | 328.06 |
| -90 | 2420134 | 1914-01-01 | 328.06 |
| -89 | 2420465 | 1914-11-28 | 327.27 |
| -88 | 2420787 | 1915-10-16 | 328.79 |
| -87 | 2421124 | 1916-09-17 | 329 |
| -86 | 2421450 | 1917-08-09 | 328.5 |
| -85 | 2421767 | 1918-06-22 | 329 |
| -84 | 2422116 | 1919-06-06 | 327.64 |
| -83 | 2422428 | 1920-04-13 | 327.36 |
| -82 | 2422770 | 1921-03-21 | 328.5 |
| -81 | 2423088 | 1922-02-02 | 326.64 |
| -80 | 2423410 | 1922-12-21 | 324.86 |
| -79 | 2423747 | 1923-11-23 | 325.21 |
| -78 | 2424069 | 1924-10-10 | 326.71 |
| -77 | 2424387 | 1925-08-24 | 328.36 |
| -76 | 2424705 | 1926-07-08 | 327.29 |
| -75 | 2425046 | 1927-06-14 | 327.5 |
| -74 | 2425386 | 1928-05-19 | 328.93 |
| -73 | 2425709 | 1929-04-07 | 329.29 |
| -72 | 2426030 | 1930-02-22 | 328.71 |
| -71 | 2426371 | 1931-01-29 | 327.07 |
| -70 | 2426690 | 1931-12-14 | 326.14 |
| -69 | 2427012 | 1932-10-31 | 326.71 |
| -68 | 2427341 | 1933-09-25 | 326.21 |
| -67 | 2427670 | 1934-08-20 | 325.79 |
| -66 | 2427991 | 1935-07-07 | 326.5 |
| -65 | 2428322 | 1936-06-02 | 326.64 |
| -64 | 2428646 | 1937-04-22 | 326.5 |
| -63 | 2428976 | 1938-03-18 | 326.79 |
| -62 | 2429297 | 1939-02-02 | 326.79 |
| -61 | 2429629 | 1939-12-31 | 326.14 |
| -60 | 2429953 | 1940-11-19 | 325.14 |
| -59 | 2430283 | 1941-10-15 | 325.64 |
| -58 | 2430605 | 1942-09-02 | 327.21 |
| -57 | 2430929 | 1943-07-23 | 325.86 |
| -56 | 2431245 | 1944-06-03 | 323.86 |
| -55 | 2431587 | 1945-05-11 | 323.5 |
| -54 | 2431920 | 1946-04-09 | 324.29 |
| -53 | 2432224 | 1947-02-07 | 326 |
| -52 | 2432546 | 1947-12-26 | 326.71 |
| -51 | 2432871 | 1948-11-15 | 326.07 |
| -50 | 2433203 | 1949-10-13 | 326.36 |
| -49 | 2433535 | 1950-09-10 | 328.07 |
| -48 | 2433871 | 1951-08-12 | 330.5 |
| -47 | 2434201 | 1952-07-07 | 330.21 |
| -46 | 2434512 | 1953-05-14 | 328.86 |
| -45 | 2434851 | 1954-04-18 | 328.36 |
| -44 | 2435193 | 1955-03-26 | 328.5 |
| -43 | 2435504 | 1956-01-31 | 330.36 |
| -42 | 2435838 | 1956-12-30 | 331.36 |
| -41 | 2436165 | 1957-11-22 | 329.57 |
| -40 | 2436506 | 1958-10-29 | 328.71 |
| -39 | 2436832 | 1959-09-20 | 329.14 |
| -38 | 2437170 | 1960-08-23 | 330.14 |
| -37 | 2437488 | 1961-07-07 | 330.07 |
| -36 | 2437811 | 1962-05-26 | 328.36 |
| -35 | 2438139 | 1963-04-19 | 327.43 |
| -34 | 2438486 | 1964-03-31 | 327.64 |
| -33 | 2438806 | 1965-02-14 | 328.86 |
| -32 | 2439129 | 1966-01-03 | 328.86 |
| -31 | 2439457 | 1966-11-27 | 327.43 |
| -30 | 2439788 | 1967-10-24 | 327.93 |
| -29 | 2440115 | 1968-09-15 | 329.93 |
| -28 | 2440439 | 1969-08-05 | 329.93 |
| -27 | 2440770 | 1970-07-02 | 329.21 |
| -26 | 2441113 | 1971-06-10 | 329.14 |
| -25 | 2441441 | 1972-05-03 | 328.93 |
| -24 | 2441764 | 1973-03-22 | 328.57 |
| -23 | 2442090 | 1974-02-11 | 327.43 |
| -22 | 2442421 | 1975-01-08 | 326.43 |
| -21 | 2442738 | 1975-11-21 | 327.5 |
| -20 | 2443071 | 1976-10-19 | 327 |
| -19 | 2443396 | 1977-09-09 | 327 |
| -18 | 2443728 | 1978-08-07 | 328.29 |
| -17 | 2444062 | 1979-07-07 | 329.07 |
| -16 | 2444370 | 1980-05-10 | 330 |
| -15 | 2444719 | 1981-04-24 | 329.71 |
| -14 | 2445036 | 1982-03-07 | 328.86 |
| -13 | 2445380 | 1983-02-14 | 329.93 |
| -12 | 2445707 | 1984-01-07 | 328.71 |
| -11 | 2446033 | 1984-11-28 | 327.5 |
| -10 | 2446361 | 1985-10-22 | 329.36 |
| -9 | 2446690 | 1986-09-16 | 328.5 |
| -8 | 2447001 | 1987-07-24 | 327.07 |
| -7 | 2447339 | 1988-06-26 | 326.71 |
| -6 | 2447688 | 1989-06-10 | 327.43 |
| -5 | 2447998 | 1990-04-16 | 328.71 |
| -4 | 2448321 | 1991-03-05 | 329 |
| -3 | 2448647 | 1992-01-25 | 327.14 |
| -2 | 2448988 | 1992-12-31 | 326.43 |
| -1 | 2449305 | 1993-11-13 | 327.86 |
| 0 | 2449641 | 1994-10-15 | 328.64 |
| 1 | 2449966 | 1995-09-05 | 327.93 |
| 2 | 2450290 | 1996-07-25 | 327.64 |
| 3 | 2450619 | 1997-06-19 | 328.14 |
| 4 | 2450950 | 1998-05-16 | 327.86 |
| 5 | 2451276 | 1999-04-07 | 327.93 |
| 6 | 2451604 | 2000-02-29 | 328.29 |
| 7 | 2451936 | 2001-01-26 | 328.36 |
| 8 | 2452261 | 2001-12-17 | 328.07 |
| 9 | 2452586 | 2002-11-07 | 327.5 |
| 10 | 2452919 | 2003-10-06 | 327.21 |
| 11 | 2453247 | 2004-08-29 | 327.5 |
| 12 | 2453572 | 2005-07-20 | 327.64 |
| 13 | 2453893 | 2006-06-06 | 326.86 |
| 14 | 2454228 | 2007-05-07 | 326 |
| 15 | 2454554 | 2008-03-28 | 325.86 |
| 16 | 2454880 | 2009-02-17 | 325.93 |
| 17 | 2455201 | 2010-01-04 | 325.71 |
| 18 | 2455529 | 2010-11-28 | 325.79 |
| 19 | 2455852 | 2011-10-17 | 327.29 |
| 20 | 2456176 | 2012-09-05 | 327.79 |
| 21 | 2456505 | 2013-07-31 | 328.21 |
| 22 | 2456838 | 2014-06-29 | 330.07 |
| 23 | 2457178 | 2015-06-04 | 330.21 |
| 24 | 2457492 | 2016-04-13 | 330.07 |
| 25 | 2457833 | 2017-03-20 | 330.43 |
| 26 | 2458169 | 2018-02-19 | 328.71 |
| 27 | 2458482 | 2018-12-29 | 329 |
| 28 | 2458820 | 2019-12-02 | 329.97 |
| 29 | 2459149 | 2020-10-26 | 326.97 |
| 30 | 2459469 | 2021-09-11 | 328.58 |
| 31 | 2459807 | 2022-08-15 | 331.7 |
| 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. |