| E | O (JD) | O (dat) | Period |
| -104 | 2410062 | 1886-06-04 | 338.99 |
| -103 | 2410356 | 1887-03-25 | 338.13 |
| -98 | 2412063 | 1891-11-26 | 336.63 |
| -96 | 2412728 | 1893-09-21 | 335.81 |
| -95 | 2413082 | 1894-09-10 | 337.68 |
| -94 | 2413411 | 1895-08-05 | 339.14 |
| -93 | 2413743 | 1896-07-02 | 337.83 |
| -92 | 2414090 | 1897-06-14 | 335.32 |
| -90 | 2414770 | 1899-04-25 | 334.3 |
| -89 | 2415110 | 1900-03-31 | 334.75 |
| -87 | 2415762 | 1902-01-12 | 335 |
| -85 | 2416419 | 1903-10-31 | 333.95 |
| -84 | 2416760 | 1904-10-06 | 331.56 |
| -83 | 2417089 | 1905-08-31 | 333.17 |
| -82 | 2417444 | 1906-08-21 | 336.26 |
| -81 | 2417761 | 1907-07-04 | 335.74 |
| -80 | 2418087 | 1908-05-25 | 334.44 |
| -79 | 2418449 | 1909-05-22 | 332.75 |
| -78 | 2418776 | 1910-04-14 | 333.49 |
| -76 | 2419439 | 1912-02-06 | 335.74 |
| -75 | 2419761 | 1912-12-24 | 335.51 |
| -74 | 2420096 | 1913-11-24 | 335.76 |
| -73 | 2420445 | 1914-11-08 | 336.93 |
| -72 | 2420775 | 1915-10-04 | 338.5 |
| -71 | 2421129 | 1916-09-22 | 339.58 |
| -70 | 2421468 | 1917-08-27 | 339.51 |
| -69 | 2421801 | 1918-07-26 | 339.5 |
| -68 | 2422138 | 1919-06-28 | 338.78 |
| -67 | 2422473 | 1920-05-28 | 337.49 |
| -66 | 2422821 | 1921-05-11 | 337.21 |
| -65 | 2423152 | 1922-04-07 | 337.01 |
| -64 | 2423495 | 1923-03-16 | 336.64 |
| -63 | 2423827 | 1924-02-11 | 336.06 |
| -62 | 2424163 | 1925-01-12 | 335.93 |
| -61 | 2424494 | 1925-12-09 | 335.94 |
| -60 | 2424830 | 1926-11-10 | 334.79 |
| -59 | 2425169 | 1927-10-15 | 333.36 |
| -58 | 2425507 | 1928-09-17 | 332.64 |
| -57 | 2425843 | 1929-08-19 | 332.06 |
| -56 | 2426166 | 1930-07-08 | 331.07 |
| -55 | 2426491 | 1931-05-29 | 331.58 |
| -54 | 2426823 | 1932-04-25 | 330.71 |
| -53 | 2427150 | 1933-03-18 | 330.42 |
| -52 | 2427484 | 1934-02-15 | 331.57 |
| -51 | 2427834 | 1935-01-31 | 331.15 |
| -50 | 2428146 | 1935-12-09 | 331.08 |
| -49 | 2428489 | 1936-11-16 | 331 |
| -48 | 2428810 | 1937-10-03 | 329.92 |
| -47 | 2429140 | 1938-08-29 | 330.35 |
| -46 | 2429468 | 1939-07-23 | 329.79 |
| -45 | 2429800 | 1940-06-19 | 330.08 |
| -44 | 2430137 | 1941-05-22 | 333.21 |
| -43 | 2430468 | 1942-04-18 | 334.85 |
| -42 | 2430784 | 1943-02-28 | 333.29 |
| -41 | 2431136 | 1944-02-15 | 330.94 |
| -40 | 2431479 | 1945-01-23 | 331.36 |
| -39 | 2431817 | 1945-12-27 | 333.43 |
| -38 | 2432117 | 1946-10-23 | 333.49 |
| -37 | 2432453 | 1947-09-24 | 331.14 |
| -36 | 2432791 | 1948-08-27 | 330.43 |
| -35 | 2433129 | 1949-07-31 | 332.58 |
| -34 | 2433460 | 1950-06-27 | 335.5 |
| -33 | 2433791 | 1951-05-24 | 335.85 |
| -32 | 2434131 | 1952-04-28 | 334.79 |
| -31 | 2434459 | 1953-03-22 | 334.65 |
| -30 | 2434808 | 1954-03-06 | 335.15 |
| -29 | 2435138 | 1955-01-30 | 334.93 |
| -28 | 2435469 | 1955-12-27 | 335.28 |
| -27 | 2435805 | 1956-11-27 | 335.78 |
| -26 | 2436138 | 1957-10-26 | 335.93 |
| -25 | 2436473 | 1958-09-26 | 336.22 |
| -24 | 2436811 | 1959-08-30 | 335.93 |
| -23 | 2437157 | 1960-08-10 | 335.42 |
| -22 | 2437492 | 1961-07-11 | 335.57 |
| -21 | 2437822 | 1962-06-06 | 334.08 |
| -20 | 2438155 | 1963-05-05 | 331.65 |
| -19 | 2438484 | 1964-03-29 | 331.51 |
| -18 | 2438825 | 1965-03-05 | 331.43 |
| -17 | 2439136 | 1966-01-10 | 330.56 |
| -16 | 2439475 | 1966-12-15 | 330.43 |
| -15 | 2439815 | 1967-11-20 | 330.65 |
| -14 | 2440139 | 1968-10-09 | 331.79 |
| -13 | 2440466 | 1969-09-01 | 331.56 |
| -12 | 2440799 | 1970-07-31 | 327.49 |
| -11 | 2441139 | 1971-07-06 | 326.57 |
| -10 | 2441467 | 1972-05-29 | 329.36 |
| -9 | 2441786 | 1973-04-13 | 329.01 |
| -8 | 2442089 | 1974-02-10 | 326.5 |
| -7 | 2442437 | 1975-01-24 | 325.06 |
| -6 | 2442779 | 1976-01-01 | 325.57 |
| -5 | 2443092 | 1976-11-09 | 328.08 |
| -4 | 2443417 | 1977-09-30 | 329.07 |
| -3 | 2443740 | 1978-08-19 | 328.21 |
| -2 | 2444071 | 1979-07-16 | 329.14 |
| -1 | 2444397 | 1980-06-06 | 330.5 |
| 0 | 2444736 | 1981-05-11 | 331.36 |
| 1 | 2445075 | 1982-04-15 | 332.22 |
| 2 | 2445404 | 1983-03-10 | 332.57 |
| 3 | 2445732 | 1984-02-01 | 332.06 |
| 4 | 2446064 | 1984-12-29 | 331.21 |
| 5 | 2446398 | 1985-11-28 | 331.15 |
| 6 | 2446726 | 1986-10-22 | 331.5 |
| 7 | 2447056 | 1987-09-17 | 332.21 |
| 8 | 2447392 | 1988-08-18 | 332.85 |
| 9 | 2447723 | 1989-07-15 | 333.71 |
| 10 | 2448054 | 1990-06-11 | 335.58 |
| 11 | 2448393 | 1991-05-16 | 336.51 |
| 12 | 2448729 | 1992-04-16 | 336.64 |
| 13 | 2449067 | 1993-03-20 | 337.21 |
| 14 | 2449413 | 1994-03-01 | 337.36 |
| 15 | 2449746 | 1995-01-28 | 337.86 |
| 16 | 2450082 | 1995-12-30 | 338.79 |
| 17 | 2450416 | 1996-11-28 | 338.92 |
| 18 | 2450754 | 1997-11-01 | 339.85 |
| 19 | 2451098 | 1998-10-11 | 340.86 |
| 20 | 2451441 | 1999-09-19 | 341.36 |
| 21 | 2451784 | 2000-08-27 | 342.08 |
| 22 | 2452133 | 2001-08-11 | 341.71 |
| 23 | 2452467 | 2002-07-11 | 340.71 |
| 24 | 2452810 | 2003-06-19 | 339.93 |
| 25 | 2453149 | 2004-05-23 | 339.58 |
| 26 | 2453487 | 2005-04-26 | 339.86 |
| 27 | 2453822 | 2006-03-27 | 339.71 |
| 28 | 2454162 | 2007-03-02 | 339.35 |
| 29 | 2454509 | 2008-02-12 | 339.64 |
| 30 | 2454849 | 2009-01-17 | 340.36 |
| 31 | 2455184 | 2009-12-18 | 339.72 |
| 32 | 2455526 | 2010-11-25 | 337.79 |
| 33 | 2455865 | 2011-10-30 | 336.28 |
| 34 | 2456209 | 2012-10-08 | 336 |
| 35 | 2456531 | 2013-08-26 | 335.08 |
| 36 | 2456869 | 2014-07-30 | 333 |
| 37 | 2457197 | 2015-06-23 | 330.78 |
| 38 | 2457540 | 2016-05-31 | 329.71 |
| 39 | 2457861 | 2017-04-17 | 330 |
| 40 | 2458192 | 2018-03-14 | 330.15 |
| 41 | 2458513 | 2019-01-29 | 330.01 |
| 42 | 2458843 | 2019-12-25 | 329.4 |
| 43 | 2459177 | 2020-11-23 | 329 |
| 44 | 2459511 | 2021-10-23 | 330.6 |
| 45 | 2459846 | 2022-09-23 | 332.53 |
| 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. |