| E | O (JD) | O (dat) | Period |
| -104 | 2411673 | 1890-11-01 | 316.69 |
| -103 | 2411986 | 1891-09-10 | 315.5 |
| -102 | 2412314 | 1892-08-03 | 315.05 |
| -101 | 2412634 | 1893-06-19 | 315.17 |
| -100 | 2412939 | 1894-04-20 | 316.04 |
| -99 | 2413254 | 1895-03-01 | 316.69 |
| -98 | 2413564 | 1896-01-05 | 317.59 |
| -97 | 2413880 | 1896-11-16 | 318.39 |
| -96 | 2414200 | 1897-10-02 | 319.23 |
| -95 | 2414530 | 1898-08-28 | 320.19 |
| -94 | 2414850 | 1899-07-14 | 319.94 |
| -93 | 2415177 | 1900-06-06 | 320.05 |
| -92 | 2415500 | 1901-04-25 | 319.75 |
| -91 | 2415810 | 1902-03-01 | 318.93 |
| -90 | 2416128 | 1903-01-13 | 317.4 |
| -89 | 2416434 | 1903-11-15 | 316.55 |
| -88 | 2416763 | 1904-10-09 | 315.1 |
| -87 | 2417084 | 1905-08-26 | 314.35 |
| -86 | 2417397 | 1906-07-05 | 314.29 |
| -85 | 2417701 | 1907-05-05 | 314.89 |
| -84 | 2418020 | 1908-03-19 | 313.86 |
| -83 | 2418321 | 1909-01-14 | 313.09 |
| -82 | 2418638 | 1909-11-27 | 313.73 |
| -81 | 2418958 | 1910-10-13 | 314.47 |
| -80 | 2419292 | 1911-09-12 | 316.49 |
| -79 | 2419571 | 1912-06-17 | 317.65 |
| -78 | 2419898 | 1913-05-10 | 318.61 |
| -77 | 2420227 | 1914-04-04 | 319.08 |
| -76 | 2420537 | 1915-02-08 | 319.73 |
| -75 | 2420880 | 1916-01-17 | 319.73 |
| -74 | 2421193 | 1916-11-25 | 321.75 |
| -73 | 2421504 | 1917-10-02 | 321.13 |
| -72 | 2421829 | 1918-08-23 | 321.05 |
| -71 | 2422154 | 1919-07-14 | 321.23 |
| -70 | 2422459 | 1920-05-14 | 320.79 |
| -69 | 2422803 | 1921-04-23 | 321.45 |
| -68 | 2423112 | 1922-02-26 | 322.62 |
| -67 | 2423440 | 1923-01-20 | 323.05 |
| -66 | 2423759 | 1923-12-05 | 323.05 |
| -65 | 2424080 | 1924-10-21 | 322.96 |
| -64 | 2424401 | 1925-09-07 | 321.46 |
| -63 | 2424741 | 1926-08-13 | 321.22 |
| -62 | 2425061 | 1927-06-29 | 320.87 |
| -61 | 2425373 | 1928-05-06 | 320.99 |
| -60 | 2425690 | 1929-03-19 | 321.15 |
| -59 | 2426000 | 1930-01-23 | 321.36 |
| -58 | 2426323 | 1930-12-12 | 321.35 |
| -57 | 2426654 | 1931-11-08 | 323.08 |
| -56 | 2426979 | 1932-09-28 | 324.95 |
| -55 | 2427305 | 1933-08-20 | 326.59 |
| -54 | 2427630 | 1934-07-11 | 327.76 |
| -53 | 2427950 | 1935-05-27 | 328.25 |
| -52 | 2428290 | 1936-05-01 | 328.75 |
| -51 | 2428619 | 1937-03-26 | 328.74 |
| -50 | 2428951 | 1938-02-21 | 329.08 |
| -49 | 2429276 | 1939-01-12 | 329.22 |
| -48 | 2429606 | 1939-12-08 | 329.49 |
| -47 | 2429940 | 1940-11-06 | 329.44 |
| -46 | 2430255 | 1941-09-17 | 330.06 |
| -45 | 2430593 | 1942-08-21 | 330.77 |
| -44 | 2430920 | 1943-07-14 | 330.86 |
| -43 | 2431256 | 1944-06-14 | 330.24 |
| -42 | 2431590 | 1945-05-14 | 328.95 |
| -41 | 2431925 | 1946-04-14 | 328.18 |
| -40 | 2432259 | 1947-03-14 | 327.07 |
| -39 | 2432575 | 1948-01-24 | 326.06 |
| -38 | 2432894 | 1948-12-08 | 324.58 |
| -37 | 2433207 | 1949-10-17 | 323.35 |
| -36 | 2433538 | 1950-09-13 | 322.62 |
| -35 | 2433872 | 1951-08-13 | 322.45 |
| -34 | 2434192 | 1952-06-28 | 322.65 |
| -33 | 2434509 | 1953-05-11 | 322.5 |
| -32 | 2434829 | 1954-03-27 | 321.65 |
| -31 | 2435154 | 1955-02-15 | 320.28 |
| -30 | 2435477 | 1956-01-04 | 319.26 |
| -29 | 2435795 | 1956-11-17 | 319.29 |
| -28 | 2436115 | 1957-10-03 | 319.07 |
| -27 | 2436425 | 1958-08-09 | 318.73 |
| -26 | 2436744 | 1959-06-24 | 318.35 |
| -25 | 2437062 | 1960-05-07 | 318.06 |
| -24 | 2437389 | 1961-03-30 | 318.35 |
| -23 | 2437703 | 1962-02-07 | 318.32 |
| -22 | 2438022 | 1962-12-23 | 319.05 |
| -21 | 2438340 | 1963-11-06 | 318.85 |
| -20 | 2438654 | 1964-09-15 | 318.99 |
| -19 | 2438979 | 1965-08-06 | 318.8 |
| -18 | 2439291 | 1966-06-14 | 319.35 |
| -17 | 2439623 | 1967-05-12 | 319.23 |
| -16 | 2439932 | 1968-03-16 | 319.73 |
| -15 | 2440258 | 1969-02-05 | 320.27 |
| -14 | 2440572 | 1969-12-16 | 320.42 |
| -13 | 2440898 | 1970-11-07 | 321.04 |
| -12 | 2441208 | 1971-09-13 | 321.36 |
| -11 | 2441540 | 1972-08-10 | 322.6 |
| -10 | 2441863 | 1973-06-29 | 323.37 |
| -9 | 2442182 | 1974-05-14 | 324.58 |
| -8 | 2442508 | 1975-04-05 | 324.72 |
| -7 | 2442833 | 1976-02-24 | 324.64 |
| -6 | 2443163 | 1977-01-19 | 322.92 |
| -5 | 2443490 | 1977-12-12 | 321.79 |
| -4 | 2443820 | 1978-11-07 | 320.8 |
| -3 | 2444132 | 1979-09-15 | 319.33 |
| -2 | 2444448 | 1980-07-27 | 318.13 |
| -1 | 2444750 | 1981-05-25 | 317.38 |
| 0 | 2445073 | 1982-04-13 | 317.1 |
| 1 | 2445395 | 1983-03-01 | 317.5 |
| 2 | 2445708 | 1984-01-08 | 318.32 |
| 3 | 2446028 | 1984-11-23 | 318.35 |
| 4 | 2446352 | 1985-10-13 | 318.43 |
| 5 | 2446670 | 1986-08-27 | 317.21 |
| 6 | 2446994 | 1987-07-17 | 316.17 |
| 7 | 2447308 | 1988-05-26 | 315.85 |
| 8 | 2447614 | 1989-03-28 | 315.57 |
| 9 | 2447932 | 1990-02-09 | 315.25 |
| 10 | 2448238 | 1990-12-12 | 315.55 |
| 11 | 2448552 | 1991-10-22 | 315.69 |
| 12 | 2448877 | 1992-09-11 | 316.68 |
| 13 | 2449199 | 1993-07-30 | 317.97 |
| 14 | 2449512 | 1994-06-08 | 318.44 |
| 15 | 2449834 | 1995-04-26 | 318.85 |
| 16 | 2450145 | 1996-03-02 | 318.73 |
| 17 | 2450470 | 1997-01-21 | 318.19 |
| 18 | 2450795 | 1997-12-12 | 318.56 |
| 19 | 2451107 | 1998-10-20 | 318.95 |
| 20 | 2451423 | 1999-09-01 | 319.08 |
| 21 | 2451742 | 2000-07-16 | 319.45 |
| 22 | 2452057 | 2001-05-27 | 319.49 |
| 23 | 2452388 | 2002-04-23 | 320.15 |
| 24 | 2452704 | 2003-03-05 | 321.09 |
| 25 | 2453024 | 2004-01-19 | 321.63 |
| 26 | 2453345 | 2004-12-05 | 321.49 |
| 27 | 2453667 | 2005-10-23 | 321.56 |
| 28 | 2453995 | 2006-09-16 | 321.05 |
| 29 | 2454316 | 2007-08-03 | 320.87 |
| 30 | 2454637 | 2008-06-19 | 320.42 |
| 31 | 2454949 | 2009-04-27 | 319.65 |
| 32 | 2455276 | 2010-03-20 | 318.78 |
| 33 | 2455592 | 2011-01-30 | 318.04 |
| 34 | 2455909 | 2011-12-13 | 317.59 |
| 35 | 2456228 | 2012-10-27 | 317.45 |
| 36 | 2456542 | 2013-09-06 | 317.95 |
| 37 | 2456858 | 2014-07-19 | 318.55 |
| 38 | 2457177 | 2015-06-03 | 319.99 |
| 39 | 2457492 | 2016-04-13 | 321.45 |
| 40 | 2457813 | 2017-02-28 | 322.7 |
| 41 | 2458141 | 2018-01-22 | 323.64 |
| 42 | 2458470 | 2018-12-17 | 324.42 |
| 43 | 2458800 | 2019-11-12 | 325.15 |
| 44 | 2459126 | 2020-10-03 | 325.93 |
| 45 | 2459448 | 2021-08-21 | 326.04 |
| 46 | 2459766 | 2022-07-05 | 325.29 |
| 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. |