| E | O (JD) | O (dat) | Period |
| -96 | 2413385 | 1895-07-10 | 307.84 |
| -91 | 2414930 | 1899-10-02 | 307.5 |
| -90 | 2415230 | 1900-07-29 | 307.11 |
| -89 | 2415550 | 1901-06-14 | 306.76 |
| -88 | 2415850 | 1902-04-10 | 306.51 |
| -85 | 2416770 | 1904-10-16 | 306.47 |
| -84 | 2417075 | 1905-08-17 | 305.79 |
| -83 | 2417377 | 1906-06-15 | 305.78 |
| -82 | 2417680 | 1907-04-14 | 306.47 |
| -79 | 2418600 | 1909-10-20 | 307.1 |
| -78 | 2418910 | 1910-08-26 | 307.9 |
| -77 | 2419210 | 1911-06-22 | 308.18 |
| -76 | 2419520 | 1912-04-27 | 308.2 |
| -72 | 2420770 | 1915-09-29 | 308.11 |
| -71 | 2421070 | 1916-07-25 | 308.13 |
| -70 | 2421390 | 1917-06-10 | 307.97 |
| -66 | 2422610 | 1920-10-12 | 307.7 |
| -65 | 2422910 | 1921-08-08 | 307.38 |
| -64 | 2423215 | 1922-06-09 | 306.89 |
| -63 | 2423530 | 1923-04-20 | 307.27 |
| -59 | 2424760 | 1926-09-01 | 307.46 |
| -58 | 2425060 | 1927-06-28 | 308.21 |
| -57 | 2425375 | 1928-05-08 | 308.6 |
| -56 | 2425680 | 1929-03-09 | 308.33 |
| -53 | 2426610 | 1931-09-25 | 307.77 |
| -52 | 2426920 | 1932-07-31 | 307.95 |
| -51 | 2427231 | 1933-06-07 | 308.01 |
| -50 | 2427540 | 1934-04-12 | 307.67 |
| -47 | 2428450 | 1936-10-08 | 307.31 |
| -46 | 2428750 | 1937-08-04 | 307.18 |
| -45 | 2429074 | 1938-06-24 | 307.27 |
| -44 | 2429380 | 1939-04-26 | 307.32 |
| -41 | 2430300 | 1941-11-01 | 307.79 |
| -40 | 2430600 | 1942-08-28 | 308.43 |
| -39 | 2430919 | 1943-07-13 | 308.63 |
| -38 | 2431226 | 1944-05-15 | 308.48 |
| -37 | 2431530 | 1945-03-15 | 308.7 |
| -34 | 2432460 | 1947-10-01 | 307.57 |
| -33 | 2432770 | 1948-08-06 | 307.09 |
| -32 | 2433082 | 1949-06-14 | 306.64 |
| -31 | 2433390 | 1950-04-18 | 306.44 |
| -27 | 2434620 | 1953-08-30 | 306.51 |
| -21 | 2436437 | 1958-08-21 | 306.68 |
| -20 | 2436747 | 1959-06-27 | 306.63 |
| -15 | 2438282 | 1963-09-09 | 306.75 |
| -14 | 2438587 | 1964-07-10 | 306.86 |
| -13 | 2438910 | 1965-05-29 | 307.15 |
| -6 | 2441065 | 1971-04-23 | 307.6 |
| -3 | 2441970 | 1973-10-14 | 307.61 |
| -2 | 2442286 | 1974-08-26 | 307.71 |
| -1 | 2442587 | 1975-06-23 | 307.74 |
| 0 | 2442900 | 1976-05-01 | 307.66 |
| 3 | 2443820 | 1978-11-07 | 308.27 |
| 4 | 2444134 | 1979-09-17 | 309.04 |
| 5 | 2444445 | 1980-07-24 | 309 |
| 6 | 2444754 | 1981-05-29 | 309.21 |
| 7 | 2445065 | 1982-04-05 | 309.57 |
| 8 | 2445370 | 1983-02-04 | 310.07 |
| 9 | 2445680 | 1983-12-11 | 309.63 |
| 10 | 2445990 | 1984-10-16 | 309.48 |
| 11 | 2446297 | 1985-08-19 | 309.41 |
| 12 | 2446619 | 1986-07-07 | 309.41 |
| 13 | 2446925 | 1987-05-09 | 309.3 |
| 14 | 2447226 | 1988-03-05 | 308.76 |
| 15 | 2447537 | 1989-01-10 | 308.54 |
| 16 | 2447846 | 1989-11-15 | 308.49 |
| 17 | 2448157 | 1990-09-22 | 308.76 |
| 18 | 2448462 | 1991-07-24 | 309.47 |
| 19 | 2448766 | 1992-05-23 | 309.71 |
| 20 | 2449080 | 1993-04-02 | 309.65 |
| 21 | 2449392 | 1994-02-08 | 309.51 |
| 22 | 2449711 | 1994-12-24 | 309.37 |
| 23 | 2450017 | 1995-10-26 | 309.98 |
| 24 | 2450319 | 1996-08-23 | 309.85 |
| 25 | 2450630 | 1997-06-30 | 309.62 |
| 26 | 2450936 | 1998-05-02 | 309.41 |
| 27 | 2451245 | 1999-03-07 | 308.82 |
| 28 | 2451568 | 2000-01-24 | 308.44 |
| 29 | 2451868 | 2000-11-19 | 307.99 |
| 30 | 2452182 | 2001-09-29 | 307.03 |
| 31 | 2452489 | 2002-08-02 | 306.76 |
| 32 | 2452788 | 2003-05-28 | 306.18 |
| 33 | 2453089 | 2004-03-24 | 305.88 |
| 34 | 2453396 | 2005-01-25 | 306.28 |
| 35 | 2453698 | 2005-11-23 | 306.25 |
| 36 | 2454016 | 2006-10-07 | 306.91 |
| 37 | 2454319 | 2007-08-06 | 307.13 |
| 38 | 2454631 | 2008-06-13 | 306.88 |
| 39 | 2454936 | 2009-04-14 | 306.75 |
| 40 | 2455240 | 2010-02-12 | 306.88 |
| 41 | 2455553 | 2010-12-22 | 306.51 |
| 42 | 2455849 | 2011-10-14 | 306.4 |
| 43 | 2456152 | 2012-08-12 | 306.35 |
| 44 | 2456466 | 2013-06-22 | 306.72 |
| 45 | 2456779 | 2014-05-01 | 306.38 |
| 46 | 2457082 | 2015-02-28 | 306.89 |
| 47 | 2457383 | 2015-12-26 | 307.72 |
| 48 | 2457694 | 2016-11-01 | 307.48 |
| 49 | 2458004 | 2017-09-07 | 306.92 |
| 50 | 2458297 | 2018-06-27 | 306.61 |
| 51 | 2458623 | 2019-05-19 | 306.67 |
| 52 | 2458931 | 2020-03-22 | 306.3 |
| 53 | 2459228 | 2021-01-13 | 305.93 |
| 54 | 2459533 | 2021-11-14 | 305.67 |
| 55 | 2459838 | 2022-09-15 | 305.62 |
| 56 | 2460145 | 2023-07-19 | 303.71 |
| 57 | 2460445 | 2024-05-14 | 303.6 |
| 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. |