| E | O (JD) | O (dat) | Period |
| -77 | 2415635 | 1901-09-07 | 375.98 |
| -76 | 2416005 | 1902-09-12 | 369.99 |
| -75 | 2416370 | 1903-09-12 | 364.14 |
| -74 | 2416730 | 1904-09-06 | 367.82 |
| -73 | 2417125 | 1905-10-06 | 367.94 |
| -72 | 2417465 | 1906-09-11 | 366.39 |
| -71 | 2417830 | 1907-09-11 | 366.67 |
| -69 | 2418590 | 1909-10-10 | 364.72 |
| -67 | 2419305 | 1911-09-25 | 364.17 |
| -66 | 2419665 | 1912-09-19 | 365.55 |
| -65 | 2420035 | 1913-09-24 | 363.23 |
| -64 | 2420385 | 1914-09-09 | 362.33 |
| -63 | 2420760 | 1915-09-19 | 364.64 |
| -62 | 2421115 | 1916-09-08 | 364.65 |
| -61 | 2421480 | 1917-09-08 | 366.08 |
| -60 | 2421850 | 1918-09-13 | 367.51 |
| -59 | 2422225 | 1919-09-23 | 366.79 |
| -58 | 2422580 | 1920-09-12 | 368.21 |
| -57 | 2422965 | 1921-10-02 | 367.85 |
| -56 | 2423325 | 1922-09-27 | 366.42 |
| -55 | 2423685 | 1923-09-22 | 366.07 |
| -54 | 2424065 | 1924-10-06 | 366.07 |
| -53 | 2424415 | 1925-09-21 | 364.64 |
| -52 | 2424790 | 1926-10-01 | 363.72 |
| -51 | 2425140 | 1927-09-16 | 362.58 |
| -50 | 2425530 | 1928-10-10 | 362.87 |
| -49 | 2425865 | 1929-09-10 | 364.37 |
| -48 | 2426237 | 1930-09-17 | 361.79 |
| -47 | 2426589 | 1931-09-04 | 360.71 |
| -46 | 2426971 | 1932-09-20 | 362.14 |
| -45 | 2427335 | 1933-09-19 | 363.28 |
| -44 | 2427660 | 1934-08-10 | 363.71 |
| -43 | 2428060 | 1935-09-14 | 363.57 |
| -42 | 2428405 | 1936-08-24 | 363.5 |
| -41 | 2428783 | 1937-09-06 | 368.22 |
| -40 | 2429135 | 1938-08-24 | 369.65 |
| -39 | 2429515 | 1939-09-08 | 368.58 |
| -38 | 2429880 | 1940-09-07 | 370.93 |
| -37 | 2430270 | 1941-10-02 | 371.64 |
| -36 | 2430625 | 1942-09-22 | 370.71 |
| -35 | 2431000 | 1943-10-02 | 368.92 |
| -34 | 2431381 | 1944-10-17 | 367.85 |
| -33 | 2431740 | 1945-10-11 | 366.78 |
| -32 | 2432100 | 1946-10-06 | 365.78 |
| -31 | 2432460 | 1947-10-01 | 364.57 |
| -30 | 2432840 | 1948-10-15 | 363.87 |
| -29 | 2433190 | 1949-09-30 | 363.79 |
| -28 | 2433556 | 1950-10-01 | 364.29 |
| -27 | 2433929 | 1951-10-09 | 364.7 |
| -26 | 2434286 | 1952-09-30 | 365.25 |
| -25 | 2434647 | 1953-09-26 | 366.05 |
| -21 | 2436106 | 1957-09-24 | 365.87 |
| -20 | 2436488 | 1958-10-11 | 365.96 |
| -19 | 2436847 | 1959-10-05 | 367.18 |
| -18 | 2437220 | 1960-10-12 | 367.76 |
| -14 | 2438680 | 1964-10-11 | 367.94 |
| -13 | 2439050 | 1965-10-16 | 368.15 |
| -5 | 2442000 | 1973-11-13 | 368.53 |
| -4 | 2442360 | 1974-11-08 | 369.32 |
| -3 | 2442744 | 1975-11-27 | 369.29 |
| -2 | 2443108 | 1976-11-25 | 368.34 |
| -1 | 2443489 | 1977-12-11 | 367.94 |
| 0 | 2443860 | 1978-12-17 | 366.08 |
| 1 | 2444210 | 1979-12-02 | 364.3 |
| 2 | 2444575 | 1980-12-01 | 363 |
| 3 | 2444936 | 1981-11-27 | 361.57 |
| 4 | 2445293 | 1982-11-19 | 361.78 |
| 5 | 2445659 | 1983-11-20 | 361.57 |
| 6 | 2446020 | 1984-11-15 | 360.71 |
| 7 | 2446391 | 1985-11-21 | 361.07 |
| 8 | 2446744 | 1986-11-09 | 361.71 |
| 9 | 2447103 | 1987-11-03 | 361.79 |
| 10 | 2447458 | 1988-10-23 | 361.72 |
| 11 | 2447826 | 1989-10-26 | 362.72 |
| 12 | 2448190 | 1990-10-25 | 364 |
| 13 | 2448554 | 1991-10-24 | 364.28 |
| 14 | 2448921 | 1992-10-25 | 364.42 |
| 15 | 2449292 | 1993-10-31 | 363.64 |
| 16 | 2449651 | 1994-10-25 | 362.85 |
| 17 | 2450010 | 1995-10-19 | 363.07 |
| 18 | 2450376 | 1996-10-19 | 363 |
| 19 | 2450731 | 1997-10-09 | 362.79 |
| 20 | 2451093 | 1998-10-06 | 363.94 |
| 21 | 2451465 | 1999-10-13 | 365.22 |
| 22 | 2451830 | 2000-10-12 | 365.71 |
| 23 | 2452192 | 2001-10-09 | 365.57 |
| 24 | 2452564 | 2002-10-16 | 366.14 |
| 25 | 2452935 | 2003-10-22 | 367.07 |
| 26 | 2453292 | 2004-10-13 | 367 |
| 27 | 2453650 | 2005-10-06 | 367.07 |
| 28 | 2454034 | 2006-10-25 | 366.43 |
| 29 | 2454400 | 2007-10-26 | 366.3 |
| 30 | 2454760 | 2008-10-20 | 367.3 |
| 31 | 2455135 | 2009-10-30 | 365.57 |
| 32 | 2455494 | 2010-10-24 | 363.28 |
| 33 | 2455861 | 2011-10-26 | 362.57 |
| 34 | 2456223 | 2012-10-22 | 361.42 |
| 35 | 2456579 | 2013-10-13 | 361.28 |
| 36 | 2456941 | 2014-10-10 | 361.92 |
| 37 | 2457295 | 2015-09-29 | 363.14 |
| 38 | 2457660 | 2016-09-28 | 365.79 |
| 39 | 2458027 | 2017-09-30 | 367.58 |
| 40 | 2458395 | 2018-10-03 | 368.65 |
| 41 | 2458773 | 2019-10-16 | 369.82 |
| 42 | 2459150 | 2020-10-27 | 371.3 |
| 43 | 2459516 | 2021-10-28 | 373.01 |
| 44 | 2459881 | 2022-10-28 | 374.01 |
| 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. |