| E | O (JD) | O (dat) | Period |
| -122 | 2400655 | 1860-09-01 | 360.31 |
| -121 | 2401007 | 1861-08-19 | 360.08 |
| -120 | 2401386 | 1862-09-02 | 360.6 |
| -119 | 2401733 | 1863-08-15 | 360.83 |
| -118 | 2402096 | 1864-08-12 | 361.14 |
| -117 | 2402455 | 1865-08-06 | 360.21 |
| -116 | 2402820 | 1866-08-06 | 359.5 |
| -115 | 2403179 | 1867-07-31 | 360.65 |
| -114 | 2403539 | 1868-07-25 | 361.72 |
| -113 | 2403897 | 1869-07-18 | 361.71 |
| -112 | 2404255 | 1870-07-11 | 360.64 |
| -111 | 2404623 | 1871-07-14 | 360.79 |
| -110 | 2404992 | 1872-07-17 | 361.22 |
| -109 | 2405347 | 1873-07-07 | 360.79 |
| -108 | 2405701 | 1874-06-26 | 359.92 |
| -107 | 2406068 | 1875-06-28 | 359.07 |
| -106 | 2406425 | 1876-06-19 | 359.22 |
| -105 | 2406778 | 1877-06-07 | 360.15 |
| -104 | 2407139 | 1878-06-03 | 359.79 |
| -103 | 2407503 | 1879-06-02 | 359.14 |
| -102 | 2407865 | 1880-05-29 | 359.71 |
| -101 | 2408225 | 1881-05-24 | 360.65 |
| -100 | 2408581 | 1882-05-15 | 361.22 |
| -99 | 2408940 | 1883-05-09 | 360.36 |
| -98 | 2409299 | 1884-05-02 | 360.07 |
| -97 | 2409667 | 1885-05-05 | 360.71 |
| -96 | 2410032 | 1886-05-05 | 362.79 |
| -95 | 2410381 | 1887-04-19 | 363.57 |
| -94 | 2410750 | 1888-04-22 | 360.79 |
| -93 | 2411106 | 1889-04-13 | 360.35 |
| -92 | 2411494 | 1890-05-06 | 363.42 |
| -91 | 2411835 | 1891-04-12 | 363.86 |
| -90 | 2412182 | 1892-03-24 | 362.57 |
| -89 | 2412562 | 1893-04-08 | 362.5 |
| -88 | 2412939 | 1894-04-20 | 363.14 |
| -87 | 2413286 | 1895-04-02 | 364.5 |
| -86 | 2413646 | 1896-03-27 | 364.79 |
| -85 | 2414029 | 1897-04-14 | 362.86 |
| -84 | 2414384 | 1898-04-04 | 362.5 |
| -83 | 2414736 | 1899-03-22 | 363.71 |
| -82 | 2415115 | 1900-04-05 | 362.07 |
| -81 | 2415466 | 1901-03-22 | 360.86 |
| -80 | 2415834 | 1902-03-25 | 362.22 |
| -79 | 2416190 | 1903-03-16 | 361.93 |
| -78 | 2416554 | 1904-03-14 | 361.42 |
| -77 | 2416911 | 1905-03-06 | 361.57 |
| -76 | 2417280 | 1906-03-10 | 361.57 |
| -75 | 2417638 | 1907-03-03 | 362.07 |
| -74 | 2418003 | 1908-03-02 | 361.79 |
| -73 | 2418359 | 1909-02-21 | 362.42 |
| -72 | 2418727 | 1910-02-24 | 363.64 |
| -71 | 2419086 | 1911-02-18 | 362.72 |
| -70 | 2419444 | 1912-02-11 | 362.29 |
| -69 | 2419821 | 1913-02-22 | 363.5 |
| -68 | 2420188 | 1914-02-24 | 361.85 |
| -67 | 2420531 | 1915-02-02 | 360.35 |
| -66 | 2420903 | 1916-02-09 | 359.86 |
| -65 | 2421272 | 1917-02-12 | 359.07 |
| -64 | 2421607 | 1918-01-13 | 359.86 |
| -63 | 2421968 | 1919-01-09 | 359.57 |
| -62 | 2422335 | 1920-01-11 | 357.28 |
| -61 | 2422701 | 1921-01-11 | 357.79 |
| -60 | 2423056 | 1922-01-01 | 359.65 |
| -59 | 2423412 | 1922-12-23 | 359.29 |
| -58 | 2423765 | 1923-12-11 | 358.35 |
| -57 | 2424123 | 1924-12-03 | 357.92 |
| -56 | 2424487 | 1925-12-02 | 358.36 |
| -55 | 2424846 | 1926-11-26 | 359.57 |
| -54 | 2425207 | 1927-11-22 | 359.57 |
| -53 | 2425561 | 1928-11-10 | 358.42 |
| -52 | 2425924 | 1929-11-08 | 358.64 |
| -51 | 2426287 | 1930-11-06 | 359.36 |
| -50 | 2426635 | 1931-10-20 | 359.15 |
| -49 | 2426993 | 1932-10-12 | 358.86 |
| -48 | 2427361 | 1933-10-15 | 359 |
| -47 | 2427723 | 1934-10-12 | 360.21 |
| -46 | 2428073 | 1935-09-27 | 361.36 |
| -45 | 2428436 | 1936-09-24 | 361 |
| -44 | 2428801 | 1937-09-24 | 360.5 |
| -43 | 2429164 | 1938-09-22 | 361.07 |
| -42 | 2429523 | 1939-09-16 | 361.35 |
| -41 | 2429885 | 1940-09-12 | 360.72 |
| -40 | 2430246 | 1941-09-08 | 360.29 |
| -39 | 2430605 | 1942-09-02 | 360.07 |
| -38 | 2430963 | 1943-08-26 | 359.57 |
| -37 | 2431324 | 1944-08-21 | 358.92 |
| -36 | 2431685 | 1945-08-17 | 358.65 |
| -35 | 2432043 | 1946-08-10 | 358.43 |
| -34 | 2432399 | 1947-08-01 | 357.93 |
| -33 | 2432757 | 1948-07-24 | 357.78 |
| -32 | 2433115 | 1949-07-17 | 358.78 |
| -31 | 2433471 | 1950-07-08 | 359.43 |
| -30 | 2433827 | 1951-06-29 | 358.93 |
| -29 | 2434191 | 1952-06-27 | 360.07 |
| -28 | 2434560 | 1953-07-01 | 360.71 |
| -27 | 2434914 | 1954-06-20 | 359.42 |
| -26 | 2435267 | 1955-06-08 | 358.79 |
| -25 | 2435646 | 1956-06-21 | 357.86 |
| -24 | 2435990 | 1957-05-31 | 357.36 |
| -23 | 2436340 | 1958-05-16 | 357.78 |
| -22 | 2436701 | 1959-05-12 | 356.71 |
| -21 | 2437060 | 1960-05-05 | 356.5 |
| -20 | 2437417 | 1961-04-27 | 357.29 |
| -19 | 2437773 | 1962-04-18 | 356.93 |
| -18 | 2438134 | 1963-04-14 | 357.21 |
| -17 | 2438493 | 1964-04-07 | 357.85 |
| -16 | 2438839 | 1965-03-19 | 357.43 |
| -15 | 2439199 | 1966-03-14 | 357 |
| -14 | 2439563 | 1967-03-13 | 357.22 |
| -13 | 2439924 | 1968-03-08 | 358.21 |
| -12 | 2440270 | 1969-02-17 | 359.85 |
| -11 | 2440635 | 1970-02-17 | 359.86 |
| -10 | 2440993 | 1971-02-10 | 358.86 |
| -9 | 2441354 | 1972-02-06 | 360.29 |
| -8 | 2441722 | 1973-02-08 | 360.71 |
| -7 | 2442078 | 1974-01-30 | 359.5 |
| -6 | 2442433 | 1975-01-20 | 360.15 |
| -5 | 2442805 | 1976-01-27 | 360.65 |
| -4 | 2443150 | 1977-01-06 | 361.65 |
| -3 | 2443511 | 1978-01-02 | 362.85 |
| -2 | 2443878 | 1979-01-04 | 363.78 |
| -1 | 2444247 | 1980-01-08 | 364.5 |
| 0 | 2444616 | 1981-01-11 | 364.36 |
| 1 | 2444975 | 1982-01-05 | 362.72 |
| 2 | 2445356 | 1983-01-21 | 360.92 |
| 3 | 2445702 | 1984-01-02 | 360.35 |
| 4 | 2446060 | 1984-12-25 | 359.22 |
| 5 | 2446407 | 1985-12-07 | 356.5 |
| 6 | 2446771 | 1986-12-06 | 355.86 |
| 7 | 2447137 | 1987-12-07 | 356.71 |
| 8 | 2447483 | 1988-11-17 | 357.57 |
| 9 | 2447839 | 1989-11-08 | 358.5 |
| 10 | 2448201 | 1990-11-05 | 358.57 |
| 11 | 2448555 | 1991-10-25 | 360.07 |
| 12 | 2448918 | 1992-10-22 | 362.42 |
| 13 | 2449279 | 1993-10-18 | 363.92 |
| 14 | 2449649 | 1994-10-23 | 365.07 |
| 15 | 2450012 | 1995-10-21 | 366.22 |
| 16 | 2450384 | 1996-10-27 | 366.57 |
| 17 | 2450751 | 1997-10-29 | 366.35 |
| 18 | 2451116 | 1998-10-29 | 365.42 |
| 19 | 2451484 | 1999-11-01 | 364.07 |
| 20 | 2451845 | 2000-10-27 | 362.86 |
| 21 | 2452212 | 2001-10-29 | 361.57 |
| 22 | 2452565 | 2002-10-17 | 360.85 |
| 23 | 2452928 | 2003-10-15 | 360.92 |
| 24 | 2453287 | 2004-10-08 | 360.36 |
| 25 | 2453642 | 2005-09-28 | 360.57 |
| 26 | 2454010 | 2006-10-01 | 361.65 |
| 27 | 2454372 | 2007-09-28 | 362 |
| 28 | 2454730 | 2008-09-20 | 361.85 |
| 29 | 2455095 | 2009-09-20 | 361.72 |
| 30 | 2455461 | 2010-09-21 | 361.72 |
| 31 | 2455822 | 2011-09-17 | 361.5 |
| 32 | 2456173 | 2012-09-02 | 361.35 |
| 33 | 2456543 | 2013-09-07 | 360.5 |
| 34 | 2456903 | 2014-09-02 | 359.22 |
| 35 | 2457260 | 2015-08-25 | 359.5 |
| 36 | 2457624 | 2016-08-23 | 359.79 |
| 37 | 2457979 | 2017-08-13 | 359.5 |
| 38 | 2458333 | 2018-08-02 | 359.57 |
| 39 | 2458695 | 2019-07-30 | 358.96 |
| 40 | 2459058 | 2020-07-27 | 358.6 |
| 41 | 2459421 | 2021-07-25 | 360.5 |
| 42 | 2459776 | 2022-07-15 | 361.81 |
| 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. |