| E | O (JD) | O (dat) | Period |
| -123 | 2404366 | 1870-10-30 | 328.05 |
| -91 | 2414800 | 1899-05-25 | 328.23 |
| -90 | 2415120 | 1900-04-10 | 328.71 |
| -89 | 2415460 | 1901-03-16 | 327.24 |
| -88 | 2415799 | 1902-02-18 | 327.47 |
| -87 | 2416131 | 1903-01-16 | 331.93 |
| -86 | 2416464 | 1903-12-15 | 332.65 |
| -85 | 2416786 | 1904-11-01 | 330.72 |
| -84 | 2417116 | 1905-09-27 | 327.86 |
| -83 | 2417451 | 1906-08-28 | 327.5 |
| -82 | 2417786 | 1907-07-29 | 327.58 |
| -81 | 2418103 | 1908-06-10 | 327.07 |
| -80 | 2418417 | 1909-04-20 | 326.13 |
| -79 | 2418763 | 1910-04-01 | 324.21 |
| -78 | 2419073 | 1911-02-05 | 323.08 |
| -77 | 2419408 | 1912-01-06 | 324.29 |
| -76 | 2419725 | 1912-11-18 | 324.29 |
| -75 | 2420051 | 1913-10-10 | 322.86 |
| -74 | 2420361 | 1914-08-16 | 322.65 |
| -73 | 2420699 | 1915-07-20 | 322.65 |
| -72 | 2421021 | 1916-06-06 | 323.57 |
| -71 | 2421335 | 1917-04-16 | 324.56 |
| -70 | 2421663 | 1918-03-10 | 325.13 |
| -69 | 2421987 | 1919-01-28 | 324.71 |
| -68 | 2422319 | 1919-12-26 | 325.93 |
| -67 | 2422637 | 1920-11-08 | 327.5 |
| -66 | 2422975 | 1921-10-12 | 328.08 |
| -65 | 2423291 | 1922-08-24 | 328.22 |
| -64 | 2423628 | 1923-07-27 | 328.58 |
| -63 | 2423955 | 1924-06-18 | 328.15 |
| -62 | 2424288 | 1925-05-17 | 327.71 |
| -61 | 2424613 | 1926-04-07 | 328.28 |
| -60 | 2424943 | 1927-03-03 | 328.13 |
| -59 | 2425263 | 1928-01-17 | 327.71 |
| -58 | 2425591 | 1928-12-10 | 327.22 |
| -57 | 2425924 | 1929-11-08 | 326.65 |
| -56 | 2426253 | 1930-10-03 | 326.93 |
| -55 | 2426578 | 1931-08-24 | 327.65 |
| -54 | 2426904 | 1932-07-15 | 326.22 |
| -53 | 2427225 | 1933-06-01 | 325.43 |
| -52 | 2427558 | 1934-04-30 | 325.93 |
| -51 | 2427883 | 1935-03-21 | 326.35 |
| -50 | 2428199 | 1936-01-31 | 327.7 |
| -49 | 2428534 | 1936-12-31 | 327.63 |
| -48 | 2428860 | 1937-11-22 | 327.85 |
| -47 | 2429191 | 1938-10-19 | 329.08 |
| -46 | 2429526 | 1939-09-19 | 327.72 |
| -45 | 2429844 | 1940-08-02 | 326.08 |
| -44 | 2430187 | 1941-07-11 | 326 |
| -43 | 2430502 | 1942-05-22 | 324.86 |
| -42 | 2430819 | 1943-04-04 | 324.43 |
| -41 | 2431140 | 1944-02-19 | 324.14 |
| -40 | 2431475 | 1945-01-19 | 323.92 |
| -39 | 2431790 | 1945-11-30 | 325.28 |
| -38 | 2432122 | 1946-10-28 | 326.14 |
| -37 | 2432447 | 1947-09-18 | 325.15 |
| -36 | 2432777 | 1948-08-13 | 323.72 |
| -35 | 2433098 | 1949-06-30 | 324.15 |
| -34 | 2433427 | 1950-05-25 | 324.65 |
| -33 | 2433740 | 1951-04-03 | 323.22 |
| -32 | 2434057 | 1952-02-14 | 321.65 |
| -31 | 2434393 | 1953-01-15 | 321.64 |
| -30 | 2434721 | 1953-12-09 | 322.99 |
| -29 | 2435028 | 1954-10-12 | 324.78 |
| -28 | 2435350 | 1955-08-30 | 324.65 |
| -27 | 2435678 | 1956-07-23 | 323.72 |
| -26 | 2436011 | 1957-06-21 | 325 |
| -25 | 2436333 | 1958-05-09 | 326.58 |
| -24 | 2436662 | 1959-04-03 | 327 |
| -23 | 2436984 | 1960-02-19 | 326.72 |
| -22 | 2437315 | 1961-01-15 | 326.5 |
| -21 | 2437635 | 1961-12-01 | 326.99 |
| -20 | 2437971 | 1962-11-02 | 326.13 |
| -19 | 2438292 | 1963-09-19 | 324.85 |
| -18 | 2438623 | 1964-08-15 | 324.43 |
| -17 | 2438950 | 1965-07-08 | 324.08 |
| -16 | 2439262 | 1966-05-16 | 323.36 |
| -15 | 2439585 | 1967-04-04 | 322.5 |
| -14 | 2439907 | 1968-02-20 | 321.36 |
| -13 | 2440236 | 1969-01-14 | 321.79 |
| -12 | 2440554 | 1969-11-28 | 322.14 |
| -11 | 2440876 | 1970-10-16 | 321.78 |
| -10 | 2441196 | 1971-09-01 | 322.28 |
| -9 | 2441521 | 1972-07-22 | 323.07 |
| -8 | 2441836 | 1973-06-02 | 323.93 |
| -7 | 2442161 | 1974-04-23 | 324.86 |
| -6 | 2442494 | 1975-03-22 | 325.15 |
| -5 | 2442819 | 1976-02-10 | 325.72 |
| -4 | 2443146 | 1977-01-02 | 326.58 |
| -3 | 2443474 | 1977-11-26 | 326.65 |
| -2 | 2443795 | 1978-10-13 | 327.28 |
| -1 | 2444122 | 1979-09-05 | 328.35 |
| 0 | 2444447 | 1980-07-26 | 329.28 |
| 1 | 2444781 | 1981-06-25 | 330.35 |
| 2 | 2445114 | 1982-05-24 | 331.28 |
| 3 | 2445448 | 1983-04-23 | 331.58 |
| 4 | 2445782 | 1984-03-22 | 331.43 |
| 5 | 2446112 | 1985-02-15 | 331.43 |
| 6 | 2446443 | 1986-01-12 | 331.15 |
| 7 | 2446768 | 1986-12-03 | 329.86 |
| 8 | 2447100 | 1987-10-31 | 329.22 |
| 9 | 2447435 | 1988-09-30 | 329 |
| 10 | 2447763 | 1989-08-24 | 328.63 |
| 11 | 2448085 | 1990-07-12 | 328.06 |
| 12 | 2448418 | 1991-06-10 | 326.28 |
| 13 | 2448743 | 1992-04-30 | 324.79 |
| 14 | 2449069 | 1993-03-22 | 324.36 |
| 15 | 2449392 | 1994-02-08 | 323.5 |
| 16 | 2449711 | 1994-12-24 | 322.43 |
| 17 | 2450034 | 1995-11-12 | 321.86 |
| 18 | 2450355 | 1996-09-28 | 321.36 |
| 19 | 2450677 | 1997-08-16 | 321.5 |
| 20 | 2450998 | 1998-07-03 | 322.35 |
| 21 | 2451320 | 1999-05-21 | 323.28 |
| 22 | 2451640 | 2000-04-05 | 323.86 |
| 23 | 2451964 | 2001-02-23 | 324.08 |
| 24 | 2452294 | 2002-01-19 | 324.86 |
| 25 | 2452621 | 2002-12-12 | 326.29 |
| 26 | 2452945 | 2003-11-01 | 326.93 |
| 27 | 2453267 | 2004-09-18 | 327.43 |
| 28 | 2453599 | 2005-08-16 | 327.93 |
| 29 | 2453929 | 2006-07-12 | 327.99 |
| 30 | 2454252 | 2007-05-31 | 329.35 |
| 31 | 2454590 | 2008-05-03 | 330.43 |
| 32 | 2454916 | 2009-03-25 | 329.86 |
| 33 | 2455242 | 2010-02-14 | 329.65 |
| 34 | 2455581 | 2011-01-19 | 329.15 |
| 35 | 2455911 | 2011-12-15 | 328.79 |
| 36 | 2456235 | 2012-11-03 | 329.43 |
| 37 | 2456561 | 2013-09-25 | 328.65 |
| 38 | 2456889 | 2014-08-19 | 327.64 |
| 39 | 2457220 | 2015-07-16 | 328.28 |
| 40 | 2457550 | 2016-06-10 | 328.42 |
| 41 | 2457874 | 2017-04-30 | 328.14 |
| 42 | 2458205 | 2018-03-27 | 327.79 |
| 43 | 2458537 | 2019-02-22 | 327 |
| 44 | 2458857 | 2020-01-08 | 327.18 |
| 45 | 2459187 | 2020-12-03 | 327.52 |
| 46 | 2459511 | 2021-10-23 | 325.68 |
| 47 | 2459837 | 2022-09-14 | 324.42 |
| 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. |