| E | O (JD) | O (dat) | Period |
| -103 | 2405309 | 1873-05-30 | 372.7 |
| -100 | 2406394 | 1876-05-19 | 371.03 |
| -97 | 2407523 | 1879-06-22 | 366.53 |
| -95 | 2408230 | 1881-05-29 | 363.73 |
| -93 | 2409007 | 1883-07-15 | 367.5 |
| -91 | 2409730 | 1885-07-07 | 370.32 |
| -90 | 2410060 | 1886-06-02 | 370.44 |
| -88 | 2410768 | 1888-05-10 | 369.87 |
| -85 | 2411960 | 1891-08-15 | 368.81 |
| -84 | 2412326 | 1892-08-15 | 373.55 |
| -83 | 2412688 | 1893-08-12 | 379.32 |
| -82 | 2413056 | 1894-08-15 | 377.63 |
| -81 | 2413426 | 1895-08-20 | 371 |
| -80 | 2413835 | 1896-10-02 | 367.57 |
| -79 | 2414200 | 1897-10-02 | 367.21 |
| -78 | 2414570 | 1898-10-07 | 366.49 |
| -77 | 2414910 | 1899-09-12 | 361.29 |
| -76 | 2415250 | 1900-08-18 | 356.43 |
| -75 | 2415635 | 1901-09-07 | 354 |
| -74 | 2415978 | 1902-08-16 | 354.5 |
| -73 | 2416341 | 1903-08-14 | 356.5 |
| -72 | 2416684 | 1904-07-22 | 354.57 |
| -71 | 2417042 | 1905-07-15 | 354.64 |
| -70 | 2417401 | 1906-07-09 | 354.64 |
| -69 | 2417750 | 1907-06-23 | 351.57 |
| -68 | 2418099 | 1908-06-06 | 351.07 |
| -67 | 2418479 | 1909-06-21 | 350.64 |
| -66 | 2418805 | 1910-05-13 | 350.5 |
| -65 | 2419142 | 1911-04-15 | 350.79 |
| -64 | 2419499 | 1912-04-06 | 347.79 |
| -63 | 2419853 | 1913-03-26 | 347.93 |
| -62 | 2420205 | 1914-03-13 | 353.92 |
| -61 | 2420555 | 1915-02-26 | 355.07 |
| -60 | 2420892 | 1916-01-29 | 353.86 |
| -59 | 2421263 | 1917-02-03 | 355.42 |
| -58 | 2421639 | 1918-02-14 | 356.71 |
| -57 | 2421973 | 1919-01-14 | 358.29 |
| -56 | 2422333 | 1920-01-09 | 359.07 |
| -55 | 2422701 | 1921-01-11 | 356 |
| -54 | 2423053 | 1921-12-29 | 355.07 |
| -53 | 2423410 | 1922-12-21 | 356.29 |
| -52 | 2423772 | 1923-12-18 | 355.07 |
| -51 | 2424114 | 1924-11-24 | 354.79 |
| -50 | 2424469 | 1925-11-14 | 356 |
| -49 | 2424825 | 1926-11-05 | 355 |
| -48 | 2425180 | 1927-10-26 | 353.79 |
| -47 | 2425541 | 1928-10-21 | 353.72 |
| -46 | 2425906 | 1929-10-21 | 352.86 |
| -45 | 2426246 | 1930-09-26 | 352.22 |
| -44 | 2426593 | 1931-09-08 | 350.79 |
| -43 | 2426942 | 1932-08-22 | 349 |
| -42 | 2427292 | 1933-08-07 | 348.78 |
| -41 | 2427644 | 1934-07-25 | 349.21 |
| -40 | 2427988 | 1935-07-04 | 349.57 |
| -39 | 2428345 | 1936-06-25 | 349.35 |
| -38 | 2428690 | 1937-06-05 | 348.28 |
| -37 | 2429038 | 1938-05-19 | 348.64 |
| -36 | 2429391 | 1939-05-07 | 348.07 |
| -35 | 2429734 | 1940-04-14 | 346.64 |
| -34 | 2430078 | 1941-03-24 | 346.93 |
| -33 | 2430435 | 1942-03-16 | 346.43 |
| -32 | 2430771 | 1943-02-15 | 343.07 |
| -31 | 2431117 | 1944-01-27 | 342.5 |
| -30 | 2431468 | 1945-01-12 | 342.72 |
| -29 | 2431811 | 1945-12-21 | 341.92 |
| -28 | 2432117 | 1946-10-23 | 343.07 |
| -27 | 2432490 | 1947-10-31 | 342.93 |
| -26 | 2432821 | 1948-09-26 | 342.72 |
| -25 | 2433172 | 1949-09-12 | 345.36 |
| -24 | 2433519 | 1950-08-25 | 346.36 |
| -23 | 2433867 | 1951-08-08 | 346.57 |
| -22 | 2434210 | 1952-07-16 | 348.5 |
| -21 | 2434553 | 1953-06-24 | 347.29 |
| -20 | 2434903 | 1954-06-09 | 344.14 |
| -19 | 2435260 | 1955-06-01 | 342.79 |
| -18 | 2435612 | 1956-05-18 | 342.22 |
| -17 | 2435941 | 1957-04-12 | 340.86 |
| -16 | 2436263 | 1958-02-28 | 339.86 |
| -15 | 2436613 | 1959-02-13 | 339.14 |
| -14 | 2436941 | 1960-01-07 | 338.29 |
| -13 | 2437287 | 1960-12-18 | 341.36 |
| -12 | 2437634 | 1961-11-30 | 344.42 |
| -11 | 2437986 | 1962-11-17 | 344.14 |
| -10 | 2438303 | 1963-09-30 | 345 |
| -9 | 2438680 | 1964-10-11 | 345.71 |
| -8 | 2439018 | 1965-09-14 | 345.71 |
| -7 | 2439354 | 1966-08-16 | 348.07 |
| -6 | 2439704 | 1967-08-01 | 347.22 |
| -5 | 2440057 | 1968-07-19 | 342.72 |
| -4 | 2440403 | 1969-06-30 | 343.22 |
| -3 | 2440759 | 1970-06-21 | 342.72 |
| -2 | 2441085 | 1971-05-13 | 340.86 |
| -1 | 2441411 | 1972-04-03 | 341.07 |
| 0 | 2441766 | 1973-03-24 | 339.57 |
| 1 | 2442090 | 1974-02-11 | 339.93 |
| 2 | 2442443 | 1975-01-30 | 344 |
| 3 | 2442792 | 1976-01-14 | 345.64 |
| 4 | 2443124 | 1976-12-11 | 347.5 |
| 5 | 2443479 | 1977-12-01 | 349.79 |
| 6 | 2443833 | 1978-11-20 | 350.57 |
| 7 | 2444183 | 1979-11-05 | 352.64 |
| 8 | 2444538 | 1980-10-25 | 353.78 |
| 9 | 2444892 | 1981-10-14 | 353.21 |
| 10 | 2445251 | 1982-10-08 | 353.72 |
| 11 | 2445602 | 1983-09-24 | 351.64 |
| 12 | 2445954 | 1984-09-10 | 349.14 |
| 13 | 2446303 | 1985-08-25 | 348.86 |
| 14 | 2446665 | 1986-08-22 | 349.57 |
| 15 | 2446979 | 1987-07-02 | 350.29 |
| 16 | 2447339 | 1988-06-26 | 350.72 |
| 17 | 2447688 | 1989-06-10 | 350.22 |
| 18 | 2448059 | 1990-06-16 | 351.36 |
| 19 | 2448401 | 1991-05-24 | 354.86 |
| 20 | 2448766 | 1992-05-23 | 355.64 |
| 21 | 2449105 | 1993-04-27 | 354 |
| 22 | 2449458 | 1994-04-15 | 352.64 |
| 23 | 2449828 | 1995-04-20 | 353.79 |
| 24 | 2450178 | 1996-04-04 | 353.29 |
| 25 | 2450525 | 1997-03-17 | 354.36 |
| 26 | 2450872 | 1998-02-27 | 354.22 |
| 27 | 2451248 | 1999-03-10 | 352.57 |
| 28 | 2451569 | 2000-01-25 | 354.57 |
| 29 | 2451955 | 2001-02-14 | 355.78 |
| 30 | 2452290 | 2002-01-15 | 353.79 |
| 31 | 2452652 | 2003-01-12 | 353.93 |
| 32 | 2453015 | 2004-01-10 | 353.72 |
| 33 | 2453363 | 2004-12-23 | 354.29 |
| 34 | 2453710 | 2005-12-05 | 358.14 |
| 35 | 2454062 | 2006-11-22 | 356.57 |
| 36 | 2454414 | 2007-11-09 | 354.43 |
| 37 | 2454791 | 2008-11-20 | 355.07 |
| 38 | 2455165 | 2009-11-29 | 356.78 |
| 39 | 2455494 | 2010-10-24 | 357.78 |
| 40 | 2455846 | 2011-10-11 | 356.72 |
| 41 | 2456198 | 2012-09-27 | 355.64 |
| 42 | 2456569 | 2013-10-03 | 356.85 |
| 43 | 2456916 | 2014-09-15 | 358.07 |
| 44 | 2457283 | 2015-09-17 | 358.29 |
| 45 | 2457652 | 2016-09-20 | 357.36 |
| 46 | 2458003 | 2017-09-06 | 356.22 |
| 47 | 2458350 | 2018-08-19 | 355.93 |
| 48 | 2458710 | 2019-08-14 | 354.21 |
| 49 | 2459060 | 2020-07-29 | 352.27 |
| 50 | 2459412 | 2021-07-16 | 353.84 |
| 51 | 2459770 | 2022-07-09 | 355.2 |
| 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. |