| E | O (JD) | O (dat) | Period |
| -100 | 2412650 | 1893-07-05 | 324.22 |
| -95 | 2414240 | 1897-11-11 | 324.56 |
| -94 | 2414573 | 1898-10-10 | 325.18 |
| -93 | 2414902 | 1899-09-04 | 322.02 |
| -92 | 2415226 | 1900-07-25 | 321.04 |
| -91 | 2415553 | 1901-06-17 | 320.81 |
| -90 | 2415880 | 1902-05-10 | 319.25 |
| -88 | 2416500 | 1904-01-20 | 318.99 |
| -87 | 2416811 | 1904-11-26 | 316.87 |
| -86 | 2417135 | 1905-10-16 | 313.38 |
| -85 | 2417448 | 1906-08-25 | 313.2 |
| -84 | 2417784 | 1907-07-27 | 314.14 |
| -83 | 2418065 | 1908-05-03 | 313.43 |
| -82 | 2418382 | 1909-03-16 | 312.22 |
| -81 | 2418696 | 1910-01-24 | 310.72 |
| -80 | 2419013 | 1910-12-07 | 312.36 |
| -79 | 2419321 | 1911-10-11 | 315.06 |
| -78 | 2419633 | 1912-08-18 | 314 |
| -77 | 2419949 | 1913-06-30 | 312.57 |
| -76 | 2420273 | 1914-05-20 | 312.81 |
| -74 | 2420900 | 1916-02-06 | 313.5 |
| -73 | 2421202 | 1916-12-04 | 313.26 |
| -72 | 2421508 | 1917-10-06 | 312.06 |
| -71 | 2421831 | 1918-08-25 | 311.06 |
| -70 | 2422139 | 1919-06-29 | 312.43 |
| -69 | 2422455 | 1920-05-10 | 314.14 |
| -68 | 2422760 | 1921-03-11 | 314.36 |
| -67 | 2423079 | 1922-01-24 | 314.93 |
| -66 | 2423397 | 1922-12-08 | 315.72 |
| -65 | 2423711 | 1923-10-18 | 316.07 |
| -64 | 2424029 | 1924-08-31 | 316.29 |
| -63 | 2424350 | 1925-07-18 | 316.72 |
| -62 | 2424664 | 1926-05-28 | 318.21 |
| -61 | 2424976 | 1927-04-05 | 318.57 |
| -60 | 2425291 | 1928-02-14 | 318.29 |
| -59 | 2425619 | 1929-01-07 | 318.78 |
| -58 | 2425944 | 1929-11-28 | 319.99 |
| -57 | 2426256 | 1930-10-06 | 321.07 |
| -56 | 2426579 | 1931-08-25 | 321.22 |
| -55 | 2426898 | 1932-07-09 | 321.36 |
| -54 | 2427222 | 1933-05-29 | 322.36 |
| -53 | 2427540 | 1934-04-12 | 323.36 |
| -52 | 2427867 | 1935-03-05 | 323.72 |
| -51 | 2428195 | 1936-01-27 | 324.29 |
| -50 | 2428518 | 1936-12-15 | 324.5 |
| -49 | 2428844 | 1937-11-06 | 324.57 |
| -48 | 2429165 | 1938-09-23 | 323.07 |
| -47 | 2429495 | 1939-08-19 | 322.07 |
| -46 | 2429810 | 1940-06-29 | 321.43 |
| -45 | 2430141 | 1941-05-26 | 320.36 |
| -44 | 2430444 | 1942-03-25 | 320.07 |
| -43 | 2430778 | 1943-02-22 | 319.72 |
| -42 | 2431084 | 1943-12-25 | 319.64 |
| -41 | 2431410 | 1944-11-15 | 320.21 |
| -40 | 2431731 | 1945-10-02 | 319.07 |
| -39 | 2432050 | 1946-08-17 | 318.35 |
| -38 | 2432376 | 1947-07-09 | 318.21 |
| -37 | 2432692 | 1948-05-20 | 316.36 |
| -36 | 2432997 | 1949-03-21 | 315.64 |
| -35 | 2433322 | 1950-02-09 | 314.5 |
| -34 | 2433627 | 1950-12-11 | 313.29 |
| -33 | 2433943 | 1951-10-23 | 313.5 |
| -32 | 2434257 | 1952-09-01 | 313.43 |
| -31 | 2434572 | 1953-07-13 | 312.57 |
| -30 | 2434882 | 1954-05-19 | 312.79 |
| -29 | 2435196 | 1955-03-29 | 312.72 |
| -28 | 2435511 | 1956-02-07 | 312.79 |
| -27 | 2435814 | 1956-12-06 | 313.72 |
| -26 | 2436135 | 1957-10-23 | 313.22 |
| -25 | 2436443 | 1958-08-27 | 311.57 |
| -24 | 2436765 | 1959-07-15 | 311.5 |
| -23 | 2437081 | 1960-05-26 | 312.07 |
| -22 | 2437382 | 1961-03-23 | 311.99 |
| -21 | 2437687 | 1962-01-22 | 312.07 |
| -20 | 2437999 | 1962-11-30 | 311.43 |
| -19 | 2438319 | 1963-10-16 | 310.79 |
| -18 | 2438627 | 1964-08-19 | 311.79 |
| -17 | 2438950 | 1965-07-08 | 312.5 |
| -16 | 2439256 | 1966-05-10 | 313.64 |
| -15 | 2439558 | 1967-03-08 | 315.43 |
| -14 | 2439876 | 1968-01-20 | 314.5 |
| -13 | 2440185 | 1968-11-24 | 313.57 |
| -12 | 2440524 | 1969-10-29 | 314.85 |
| -11 | 2440838 | 1970-09-08 | 313.99 |
| -10 | 2441142 | 1971-07-09 | 312.86 |
| -9 | 2441454 | 1972-05-16 | 312.07 |
| -8 | 2441768 | 1973-03-26 | 310.42 |
| -7 | 2442062 | 1974-01-14 | 311.29 |
| -6 | 2442379 | 1974-11-27 | 312.57 |
| -5 | 2442699 | 1975-10-13 | 313.43 |
| -4 | 2443009 | 1976-08-18 | 315.93 |
| -3 | 2443329 | 1977-07-04 | 318.36 |
| -2 | 2443643 | 1978-05-14 | 319.22 |
| -1 | 2443967 | 1979-04-03 | 319.79 |
| 0 | 2444286 | 1980-02-16 | 320.43 |
| 1 | 2444612 | 1981-01-07 | 321.5 |
| 2 | 2444935 | 1981-11-26 | 321.79 |
| 3 | 2445250 | 1982-10-07 | 321.22 |
| 4 | 2445574 | 1983-08-27 | 322.14 |
| 5 | 2445899 | 1984-07-17 | 323.22 |
| 6 | 2446216 | 1985-05-30 | 324.07 |
| 7 | 2446534 | 1986-04-13 | 325 |
| 8 | 2446874 | 1987-03-19 | 325.21 |
| 9 | 2447198 | 1988-02-06 | 326.42 |
| 10 | 2447524 | 1988-12-28 | 327.93 |
| 11 | 2447850 | 1989-11-19 | 326.92 |
| 12 | 2448176 | 1990-10-11 | 326.35 |
| 13 | 2448509 | 1991-09-09 | 326.64 |
| 14 | 2448832 | 1992-07-28 | 326.36 |
| 15 | 2449153 | 1993-06-14 | 326.79 |
| 16 | 2449488 | 1994-05-15 | 326.36 |
| 17 | 2449807 | 1995-03-30 | 325.22 |
| 18 | 2450136 | 1996-02-22 | 324.86 |
| 19 | 2450465 | 1997-01-16 | 323.93 |
| 20 | 2450789 | 1997-12-06 | 323.22 |
| 21 | 2451105 | 1998-10-18 | 323.07 |
| 22 | 2451428 | 1999-09-06 | 321.93 |
| 23 | 2451748 | 2000-07-22 | 320.64 |
| 24 | 2452072 | 2001-06-11 | 320.07 |
| 25 | 2452394 | 2002-04-29 | 320.14 |
| 26 | 2452714 | 2003-03-15 | 320.14 |
| 27 | 2453029 | 2004-01-24 | 319.93 |
| 28 | 2453346 | 2004-12-06 | 319.78 |
| 29 | 2453669 | 2005-10-25 | 320.35 |
| 30 | 2453989 | 2006-09-10 | 321.36 |
| 31 | 2454310 | 2007-07-28 | 321.57 |
| 32 | 2454633 | 2008-06-15 | 320.29 |
| 33 | 2454960 | 2009-05-08 | 318.79 |
| 34 | 2455282 | 2010-03-26 | 317.93 |
| 35 | 2455595 | 2011-02-02 | 317.5 |
| 36 | 2455904 | 2011-12-08 | 316 |
| 37 | 2456217 | 2012-10-16 | 314.5 |
| 38 | 2456533 | 2013-08-28 | 314.64 |
| 39 | 2456855 | 2014-07-16 | 315.78 |
| 40 | 2457162 | 2015-05-19 | 315.79 |
| 41 | 2457483 | 2016-04-04 | 314.92 |
| 42 | 2457799 | 2017-02-14 | 314.49 |
| 43 | 2458121 | 2018-01-02 | 313.72 |
| 44 | 2458421 | 2018-10-29 | 313.22 |
| 45 | 2458738 | 2019-09-11 | 312.94 |
| 46 | 2459053 | 2020-07-22 | 310.98 |
| 47 | 2459356 | 2021-05-21 | 311.41 |
| 48 | 2459674 | 2022-04-04 | 313.69 |
| 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. |