| E | O (JD) | O (dat) | Period |
| -87 | 2412718 | 1893-09-11 | 374.51 |
| -86 | 2413076 | 1894-09-04 | 372.25 |
| -85 | 2413463 | 1895-09-26 | 371.95 |
| -84 | 2413848 | 1896-10-15 | 372.35 |
| -83 | 2414222 | 1897-10-24 | 372.97 |
| -82 | 2414575 | 1898-10-12 | 373.73 |
| -81 | 2414940 | 1899-10-12 | 374.35 |
| -80 | 2415320 | 1900-10-27 | 373.1 |
| -79 | 2415700 | 1901-11-11 | 372.68 |
| -78 | 2416080 | 1902-11-26 | 372.79 |
| -76 | 2416834 | 1904-12-19 | 374.19 |
| -75 | 2417207 | 1905-12-27 | 374.83 |
| -74 | 2417556 | 1906-12-11 | 374.66 |
| -73 | 2417932 | 1907-12-22 | 374.73 |
| -72 | 2418303 | 1908-12-27 | 375.07 |
| -71 | 2418704 | 1910-02-01 | 376.29 |
| -70 | 2419082 | 1911-02-14 | 376.44 |
| -69 | 2419450 | 1912-02-17 | 376.87 |
| -68 | 2419827 | 1913-02-28 | 376.68 |
| -67 | 2420203 | 1914-03-11 | 375.42 |
| -66 | 2420590 | 1915-04-02 | 373.72 |
| -65 | 2420940 | 1916-03-17 | 373.3 |
| -64 | 2421320 | 1917-04-01 | 372.84 |
| -63 | 2421710 | 1918-04-26 | 372.43 |
| -62 | 2422066 | 1919-04-17 | 372.74 |
| -61 | 2422438 | 1920-04-23 | 373.05 |
| -60 | 2422812 | 1921-05-02 | 374.04 |
| -59 | 2423179 | 1922-05-04 | 373.86 |
| -58 | 2423558 | 1923-05-18 | 374.4 |
| -57 | 2423943 | 1924-06-06 | 375.11 |
| -56 | 2424315 | 1925-06-13 | 374.9 |
| -55 | 2424688 | 1926-06-21 | 374.59 |
| -54 | 2425062 | 1927-06-30 | 374.95 |
| -53 | 2425446 | 1928-07-18 | 374.52 |
| -52 | 2425807 | 1929-07-14 | 373.79 |
| -51 | 2426179 | 1930-07-21 | 373.41 |
| -50 | 2426553 | 1931-07-30 | 373.35 |
| -49 | 2426942 | 1932-08-22 | 373.55 |
| -48 | 2427310 | 1933-08-25 | 373.77 |
| -47 | 2427675 | 1934-08-25 | 374.05 |
| -46 | 2428044 | 1935-08-29 | 374.03 |
| -45 | 2428425 | 1936-09-13 | 374.51 |
| -44 | 2428805 | 1937-09-28 | 373.86 |
| -43 | 2429180 | 1938-10-08 | 374.37 |
| -42 | 2429544 | 1939-10-07 | 373.24 |
| -41 | 2429924 | 1940-10-21 | 372.79 |
| -40 | 2430312 | 1941-11-13 | 372.09 |
| -39 | 2430665 | 1942-11-01 | 371.8 |
| -38 | 2431046 | 1943-11-17 | 371.61 |
| -37 | 2431389 | 1944-10-25 | 371.36 |
| -36 | 2431782 | 1945-11-22 | 371.17 |
| -35 | 2432155 | 1946-11-30 | 371.21 |
| -34 | 2432529 | 1947-12-09 | 371.69 |
| -33 | 2432896 | 1948-12-10 | 371.72 |
| -32 | 2433263 | 1949-12-12 | 371.58 |
| -31 | 2433644 | 1950-12-28 | 369.97 |
| -30 | 2434013 | 1952-01-01 | 369.29 |
| -29 | 2434375 | 1952-12-28 | 368.82 |
| -28 | 2434754 | 1954-01-11 | 368.82 |
| -27 | 2435111 | 1955-01-03 | 369 |
| -26 | 2435480 | 1956-01-07 | 370.05 |
| -25 | 2435847 | 1957-01-08 | 371.74 |
| -24 | 2436217 | 1958-01-13 | 374.35 |
| -23 | 2436591 | 1959-01-22 | 375.66 |
| -22 | 2436967 | 1960-02-02 | 377.49 |
| -21 | 2437360 | 1961-03-01 | 378.39 |
| -20 | 2437736 | 1962-03-12 | 379.31 |
| -19 | 2438132 | 1963-04-12 | 379.4 |
| -18 | 2438493 | 1964-04-07 | 377.96 |
| -17 | 2438873 | 1965-04-22 | 376.18 |
| -16 | 2439248 | 1966-05-02 | 374.45 |
| -15 | 2439633 | 1967-05-22 | 372.87 |
| -14 | 2440005 | 1968-05-28 | 371.54 |
| -13 | 2440359 | 1969-05-17 | 371.63 |
| -12 | 2440731 | 1970-05-24 | 371.17 |
| -11 | 2441109 | 1971-06-06 | 370.69 |
| -10 | 2441469 | 1972-05-31 | 371.19 |
| -9 | 2441845 | 1973-06-11 | 372.27 |
| -8 | 2442223 | 1974-06-24 | 373.04 |
| -7 | 2442596 | 1975-07-02 | 373.35 |
| -6 | 2442960 | 1976-06-30 | 373.57 |
| -5 | 2443349 | 1977-07-24 | 374.17 |
| -4 | 2443720 | 1978-07-30 | 373.64 |
| -3 | 2444084 | 1979-07-29 | 373.25 |
| -2 | 2444465 | 1980-08-13 | 373.93 |
| -1 | 2444838 | 1981-08-21 | 374.49 |
| 0 | 2445214 | 1982-09-01 | 374.4 |
| 1 | 2445578 | 1983-08-31 | 374.71 |
| 2 | 2445952 | 1984-09-08 | 374.72 |
| 3 | 2446343 | 1985-10-04 | 374.28 |
| 4 | 2446717 | 1986-10-13 | 374.36 |
| 5 | 2447090 | 1987-10-21 | 374.15 |
| 6 | 2447458 | 1988-10-23 | 374.33 |
| 7 | 2447828 | 1989-10-28 | 373.72 |
| 8 | 2448203 | 1990-11-07 | 373.05 |
| 9 | 2448581 | 1991-11-20 | 373.55 |
| 10 | 2448950 | 1992-11-23 | 373.64 |
| 11 | 2449330 | 1993-12-08 | 374.42 |
| 12 | 2449699 | 1994-12-12 | 374.26 |
| 13 | 2450073 | 1995-12-21 | 374.44 |
| 14 | 2450454 | 1997-01-05 | 375.03 |
| 15 | 2450818 | 1998-01-04 | 376.12 |
| 16 | 2451206 | 1999-01-27 | 376.94 |
| 17 | 2451567 | 2000-01-23 | 377.99 |
| 18 | 2451952 | 2001-02-11 | 378.46 |
| 19 | 2452336 | 2002-03-02 | 378.76 |
| 20 | 2452720 | 2003-03-21 | 379.37 |
| 21 | 2453099 | 2004-04-03 | 378.95 |
| 22 | 2453478 | 2005-04-17 | 379.06 |
| 23 | 2453852 | 2006-04-26 | 378.45 |
| 24 | 2454230 | 2007-05-09 | 377.99 |
| 25 | 2454611 | 2008-05-24 | 377.58 |
| 26 | 2454983 | 2009-05-31 | 377.76 |
| 27 | 2455362 | 2010-06-14 | 377.9 |
| 28 | 2455744 | 2011-07-01 | 377.97 |
| 29 | 2456121 | 2012-07-12 | 378.43 |
| 30 | 2456495 | 2013-07-21 | 378.29 |
| 31 | 2456879 | 2014-08-09 | 378.15 |
| 32 | 2457255 | 2015-08-20 | 377.43 |
| 33 | 2457630 | 2016-08-29 | 376.21 |
| 34 | 2458020 | 2017-09-23 | 375.47 |
| 35 | 2458387 | 2018-09-25 | 375.05 |
| 36 | 2458761 | 2019-10-04 | 374.2 |
| 37 | 2459132 | 2020-10-09 | 373.57 |
| 38 | 2459496 | 2021-10-08 | 372.57 |
| 39 | 2459875 | 2022-10-22 | 370.66 |
| 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. |