| E | O (JD) | O (dat) | Period |
| -74 | 2416160 | 1903-02-14 | 353.96 |
| -72 | 2416870 | 1905-01-24 | 353.29 |
| -71 | 2417240 | 1906-01-29 | 352.59 |
| -69 | 2417920 | 1907-12-10 | 352.09 |
| -68 | 2418290 | 1908-12-14 | 351.96 |
| -67 | 2418643 | 1909-12-02 | 352.11 |
| -66 | 2418986 | 1910-11-10 | 352.13 |
| -65 | 2419333 | 1911-10-23 | 352.24 |
| -64 | 2419683 | 1912-10-07 | 353.26 |
| -63 | 2420039 | 1913-09-28 | 352.57 |
| -62 | 2420397 | 1914-09-21 | 352.88 |
| -61 | 2420760 | 1915-09-19 | 351.98 |
| -60 | 2421110 | 1916-09-03 | 351.44 |
| -59 | 2421460 | 1917-08-19 | 351.17 |
| -58 | 2421805 | 1918-07-30 | 351.07 |
| -57 | 2422160 | 1919-07-20 | 351.01 |
| -46 | 2426020 | 1930-02-12 | 350.98 |
| -44 | 2426715 | 1932-01-08 | 351.06 |
| -43 | 2427069 | 1932-12-27 | 351.16 |
| -42 | 2427428 | 1933-12-21 | 351.34 |
| -41 | 2427782 | 1934-12-10 | 351.46 |
| -40 | 2428132 | 1935-11-25 | 352.47 |
| -39 | 2428480 | 1936-11-07 | 353.39 |
| -38 | 2428832 | 1937-10-25 | 354.62 |
| -37 | 2429187 | 1938-10-15 | 355.04 |
| -36 | 2429541 | 1939-10-04 | 355.26 |
| -35 | 2429895 | 1940-09-22 | 355.33 |
| -34 | 2430259 | 1941-09-21 | 355.95 |
| -33 | 2430633 | 1942-09-30 | 356.31 |
| -32 | 2430974 | 1943-09-06 | 355.93 |
| -31 | 2431320 | 1944-08-17 | 356.67 |
| -30 | 2431670 | 1945-08-02 | 356.59 |
| -29 | 2432040 | 1946-08-07 | 356.58 |
| -28 | 2432398 | 1947-07-31 | 356.53 |
| -26 | 2433100 | 1949-07-02 | 356.57 |
| -10 | 2438820 | 1965-02-28 | 356.46 |
| -9 | 2439170 | 1966-02-13 | 356.17 |
| -8 | 2439530 | 1967-02-08 | 355.8 |
| -7 | 2439880 | 1968-01-24 | 355.46 |
| -6 | 2440225 | 1969-01-03 | 354.9 |
| -5 | 2440574 | 1969-12-18 | 349.66 |
| -4 | 2440918 | 1970-11-27 | 349.03 |
| -3 | 2441276 | 1971-11-20 | 348.32 |
| -2 | 2441621 | 1972-10-30 | 348.47 |
| -1 | 2441970 | 1973-10-14 | 348.81 |
| 0 | 2442321 | 1974-09-30 | 349.86 |
| 1 | 2442663 | 1975-09-07 | 350.32 |
| 2 | 2443010 | 1976-08-19 | 350.44 |
| 3 | 2443365 | 1977-08-09 | 351.12 |
| 4 | 2443716 | 1978-07-26 | 352.33 |
| 5 | 2444085 | 1979-07-30 | 353.03 |
| 6 | 2444425 | 1980-07-04 | 353.49 |
| 7 | 2444775 | 1981-06-19 | 353.81 |
| 9 | 2445480 | 1983-05-25 | 353.65 |
| 11 | 2446200 | 1985-05-14 | 353.69 |
| 12 | 2446550 | 1986-04-29 | 353.64 |
| 13 | 2446900 | 1987-04-14 | 353.92 |
| 14 | 2447260 | 1988-04-08 | 353.83 |
| 15 | 2447607 | 1989-03-21 | 353.59 |
| 16 | 2447965 | 1990-03-14 | 353.56 |
| 17 | 2448320 | 1991-03-04 | 353.62 |
| 18 | 2448664 | 1992-02-11 | 353.38 |
| 19 | 2449021 | 1993-02-02 | 352.72 |
| 20 | 2449377 | 1994-01-24 | 352.34 |
| 21 | 2449740 | 1995-01-22 | 351.89 |
| 22 | 2450082 | 1995-12-30 | 351.45 |
| 23 | 2450432 | 1996-12-14 | 351.26 |
| 24 | 2450779 | 1997-11-26 | 350.99 |
| 25 | 2451129 | 1998-11-11 | 350.94 |
| 26 | 2451485 | 1999-11-02 | 350.82 |
| 27 | 2451831 | 2000-10-13 | 351.93 |
| 28 | 2452184 | 2001-10-01 | 353.06 |
| 29 | 2452542 | 2002-09-24 | 353.47 |
| 30 | 2452894 | 2003-09-11 | 353.12 |
| 31 | 2453240 | 2004-08-22 | 352.51 |
| 32 | 2453604 | 2005-08-21 | 352.83 |
| 33 | 2453967 | 2006-08-19 | 352.54 |
| 34 | 2454308 | 2007-07-26 | 352.38 |
| 35 | 2454650 | 2008-07-02 | 352 |
| 39 | 2456060 | 2012-05-12 | 351.92 |
| 40 | 2456425 | 2013-05-12 | 351.39 |
| 41 | 2456770 | 2014-04-22 | 351.33 |
| 42 | 2457125 | 2015-04-12 | 351.52 |
| 43 | 2457465 | 2016-03-17 | 350.91 |
| 44 | 2457826 | 2017-03-13 | 349.65 |
| 45 | 2458171 | 2018-02-21 | 348.97 |
| 46 | 2458526 | 2019-02-11 | 348.99 |
| 47 | 2458869 | 2020-01-20 | 348.7 |
| 48 | 2459208 | 2020-12-24 | 348.8 |
| 49 | 2459565 | 2021-12-16 | 347.75 |
| 50 | 2459915 | 2022-12-01 | 347.89 |
| 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. |