| E | O (JD) | O (dat) | Period |
| -102 | 2414800 | 1899-05-25 | 273 |
| -101 | 2415060 | 1900-02-09 | 272.95 |
| -98 | 2415878 | 1902-05-08 | 273.49 |
| -95 | 2416690 | 1904-07-28 | 273.72 |
| -94 | 2416975 | 1905-05-09 | 273.08 |
| -93 | 2417260 | 1906-02-18 | 272.57 |
| -92 | 2417520 | 1906-11-05 | 272.55 |
| -91 | 2417807 | 1907-08-19 | 271.27 |
| -90 | 2418078 | 1908-05-16 | 270.45 |
| -89 | 2418326 | 1909-01-19 | 269.42 |
| -87 | 2418870 | 1910-07-17 | 269.29 |
| -86 | 2419145 | 1911-04-18 | 270.5 |
| -85 | 2419400 | 1911-12-29 | 272.42 |
| -84 | 2419685 | 1912-10-09 | 274.15 |
| -83 | 2419950 | 1913-07-01 | 275.83 |
| -82 | 2420230 | 1914-04-07 | 276.79 |
| -81 | 2420520 | 1915-01-22 | 276.67 |
| -79 | 2421090 | 1916-08-14 | 277.18 |
| -78 | 2421350 | 1917-05-01 | 276.74 |
| -77 | 2421622 | 1918-01-28 | 276.15 |
| -75 | 2422180 | 1919-08-09 | 275.28 |
| -74 | 2422440 | 1920-04-25 | 273.4 |
| -73 | 2422730 | 1921-02-09 | 272.71 |
| -71 | 2423279 | 1922-08-12 | 273.31 |
| -70 | 2423542 | 1923-05-02 | 273.28 |
| -69 | 2423820 | 1924-02-04 | 273.97 |
| -67 | 2424340 | 1925-07-08 | 274.28 |
| -66 | 2424630 | 1926-04-24 | 274.2 |
| -65 | 2424915 | 1927-02-03 | 274.39 |
| -64 | 2425185 | 1927-10-31 | 275.07 |
| -63 | 2425484 | 1928-08-25 | 275.59 |
| -62 | 2425737 | 1929-05-05 | 275.69 |
| -61 | 2426017 | 1930-02-09 | 275.05 |
| -59 | 2426554 | 1931-07-31 | 274.55 |
| -58 | 2426838 | 1932-05-10 | 274.95 |
| -57 | 2427120 | 1933-02-16 | 275.73 |
| -56 | 2427380 | 1933-11-03 | 277.03 |
| -55 | 2427670 | 1934-08-20 | 277.1 |
| -54 | 2427937 | 1935-05-14 | 277.17 |
| -53 | 2428225 | 1936-02-26 | 276.1 |
| -52 | 2428518 | 1936-12-15 | 276.1 |
| -51 | 2428780 | 1937-09-03 | 276.33 |
| -50 | 2429050 | 1938-05-31 | 275.28 |
| -49 | 2429320 | 1939-02-25 | 274.58 |
| -48 | 2429590 | 1939-11-22 | 273.72 |
| -47 | 2429880 | 1940-09-07 | 273.63 |
| -46 | 2430155 | 1941-06-09 | 274.63 |
| -45 | 2430422 | 1942-03-03 | 274.85 |
| -44 | 2430690 | 1942-11-26 | 274.35 |
| -43 | 2430970 | 1943-09-02 | 274.42 |
| -42 | 2431248 | 1944-06-06 | 273.91 |
| -41 | 2431525 | 1945-03-10 | 274.56 |
| -40 | 2431795 | 1945-12-05 | 275.22 |
| -39 | 2432058 | 1946-08-25 | 275.31 |
| -38 | 2432348 | 1947-06-11 | 275.04 |
| -37 | 2432617 | 1948-03-06 | 275.38 |
| -36 | 2432900 | 1948-12-14 | 274.87 |
| -35 | 2433174 | 1949-09-14 | 273.73 |
| -34 | 2433445 | 1950-06-12 | 272.86 |
| -33 | 2433720 | 1951-03-14 | 272.49 |
| -31 | 2434278 | 1952-09-22 | 272.02 |
| -29 | 2434810 | 1954-03-08 | 272.11 |
| -25 | 2435890 | 1957-02-20 | 272.08 |
| -22 | 2436705 | 1959-05-16 | 272.33 |
| -21 | 2436990 | 1960-02-25 | 272.45 |
| -18 | 2437790 | 1962-05-05 | 272.63 |
| -17 | 2438086 | 1963-02-25 | 273.46 |
| -16 | 2438348 | 1963-11-14 | 273.59 |
| -15 | 2438635 | 1964-08-27 | 273.73 |
| -14 | 2438905 | 1965-05-24 | 273.67 |
| -13 | 2439178 | 1966-02-21 | 273.67 |
| -11 | 2439725 | 1967-08-22 | 273.06 |
| -8 | 2440530 | 1969-11-04 | 273.11 |
| -7 | 2440819 | 1970-08-20 | 272.55 |
| -3 | 2441914 | 1973-08-19 | 272.54 |
| -2 | 2442180 | 1974-05-12 | 272.35 |
| 0 | 2442722 | 1975-11-05 | 271.95 |
| 1 | 2442999 | 1976-08-08 | 271.49 |
| 2 | 2443256 | 1977-04-22 | 270.2 |
| 4 | 2443810 | 1978-10-28 | 269.27 |
| 5 | 2444077 | 1979-07-22 | 269.12 |
| 6 | 2444340 | 1980-04-10 | 268.55 |
| 7 | 2444609 | 1981-01-04 | 268.16 |
| 8 | 2444870 | 1981-09-22 | 268.24 |
| 9 | 2445143 | 1982-06-22 | 268.03 |
| 10 | 2445414 | 1983-03-20 | 268.63 |
| 11 | 2445678 | 1983-12-09 | 269.46 |
| 12 | 2445947 | 1984-09-03 | 269.47 |
| 13 | 2446217 | 1985-05-31 | 269.53 |
| 14 | 2446494 | 1986-03-04 | 269.28 |
| 15 | 2446761 | 1986-11-26 | 268.89 |
| 16 | 2447036 | 1987-08-28 | 268.48 |
| 17 | 2447294 | 1988-05-12 | 267.68 |
| 18 | 2447563 | 1989-02-05 | 267.08 |
| 19 | 2447834 | 1989-11-03 | 266.72 |
| 20 | 2448096 | 1990-07-23 | 266.87 |
| 21 | 2448361 | 1991-04-14 | 267.21 |
| 22 | 2448625 | 1992-01-03 | 268.53 |
| 23 | 2448896 | 1992-09-30 | 268.62 |
| 24 | 2449167 | 1993-06-28 | 268.35 |
| 25 | 2449436 | 1994-03-24 | 268.64 |
| 26 | 2449708 | 1994-12-21 | 268.65 |
| 27 | 2449989 | 1995-09-28 | 268.89 |
| 28 | 2450243 | 1996-06-08 | 268.8 |
| 29 | 2450502 | 1997-02-22 | 268.22 |
| 30 | 2450777 | 1997-11-24 | 267.77 |
| 31 | 2451045 | 1998-08-19 | 267.61 |
| 32 | 2451322 | 1999-05-23 | 267.99 |
| 33 | 2451590 | 2000-02-15 | 269.87 |
| 34 | 2451847 | 2000-10-29 | 270.95 |
| 35 | 2452115 | 2001-07-24 | 272 |
| 36 | 2452388 | 2002-04-23 | 273.47 |
| 37 | 2452664 | 2003-01-24 | 273.72 |
| 38 | 2452951 | 2003-11-07 | 274.09 |
| 39 | 2453221 | 2004-08-03 | 275.31 |
| 40 | 2453505 | 2005-05-14 | 275.81 |
| 41 | 2453785 | 2006-02-18 | 276 |
| 42 | 2454038 | 2006-10-29 | 275.47 |
| 43 | 2454307 | 2007-07-25 | 275.05 |
| 44 | 2454601 | 2008-05-14 | 275.24 |
| 45 | 2454879 | 2009-02-16 | 274.78 |
| 46 | 2455157 | 2009-11-21 | 274.39 |
| 47 | 2455422 | 2010-08-13 | 275.2 |
| 48 | 2455700 | 2011-05-18 | 275.41 |
| 49 | 2455976 | 2012-02-18 | 275.36 |
| 50 | 2456243 | 2012-11-11 | 276.5 |
| 51 | 2456508 | 2013-08-03 | 277.48 |
| 52 | 2456799 | 2014-05-21 | 278.58 |
| 53 | 2457085 | 2015-03-03 | 279.23 |
| 54 | 2457366 | 2015-12-09 | 280.21 |
| 55 | 2457651 | 2016-09-19 | 280.16 |
| 56 | 2457924 | 2017-06-19 | 279.75 |
| 57 | 2458202 | 2018-03-24 | 278.44 |
| 58 | 2458483 | 2018-12-30 | 277.6 |
| 59 | 2458769 | 2019-10-12 | 277.19 |
| 60 | 2459029 | 2020-06-28 | 276.75 |
| 61 | 2459311 | 2021-04-06 | 276.77 |
| 62 | 2459587 | 2022-01-07 | 276.29 |
| 63 | 2459864 | 2022-10-11 | 275.46 |
| 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. |