| E | O (JD) | O (dat) | Period |
| -154 | 2388841 | 1828-04-28 | 366.39 |
| -152 | 2389580 | 1830-05-07 | 366.6 |
| -150 | 2390313 | 1832-05-09 | 366.88 |
| -139 | 2394351 | 1843-05-30 | 366.82 |
| -138 | 2394710 | 1844-05-23 | 366.51 |
| -137 | 2395081 | 1845-05-29 | 365.53 |
| -136 | 2395448 | 1846-05-31 | 364.1 |
| -135 | 2395810 | 1847-05-28 | 362.5 |
| -134 | 2396172 | 1848-05-24 | 362.05 |
| -130 | 2397611 | 1852-05-02 | 361 |
| -129 | 2397976 | 1853-05-02 | 360.65 |
| -128 | 2398335 | 1854-04-26 | 360.8 |
| -127 | 2398697 | 1855-04-23 | 360.59 |
| -126 | 2399052 | 1856-04-12 | 359.78 |
| -125 | 2399419 | 1857-04-14 | 359.71 |
| -124 | 2399779 | 1858-04-09 | 360.43 |
| -123 | 2400134 | 1859-03-30 | 361.08 |
| -122 | 2400490 | 1860-03-20 | 361.61 |
| -121 | 2400857 | 1861-03-22 | 361.62 |
| -120 | 2401221 | 1862-03-21 | 361.68 |
| -119 | 2401583 | 1863-03-18 | 361.88 |
| -117 | 2402312 | 1865-03-16 | 361.25 |
| -116 | 2402672 | 1866-03-11 | 360.56 |
| -115 | 2403028 | 1867-03-02 | 360.37 |
| -114 | 2403386 | 1868-02-23 | 359.66 |
| -113 | 2403741 | 1869-02-12 | 360.2 |
| -112 | 2404106 | 1870-02-12 | 362.37 |
| -111 | 2404464 | 1871-02-05 | 363.82 |
| -110 | 2404826 | 1872-02-02 | 365.04 |
| -108 | 2405561 | 1874-02-06 | 366.23 |
| -104 | 2407024 | 1878-02-08 | 367.09 |
| -103 | 2407394 | 1879-02-13 | 368.22 |
| -102 | 2407764 | 1880-02-18 | 369.91 |
| -101 | 2408140 | 1881-02-28 | 371.47 |
| -100 | 2408506 | 1882-03-01 | 372.08 |
| -98 | 2409253 | 1884-03-17 | 372.62 |
| -96 | 2410012 | 1886-04-15 | 373.08 |
| -93 | 2411117 | 1889-04-24 | 373.12 |
| -90 | 2412231 | 1892-05-12 | 373.4 |
| -89 | 2412615 | 1893-05-31 | 373.57 |
| -88 | 2412989 | 1894-06-09 | 373.76 |
| -87 | 2413358 | 1895-06-13 | 374.69 |
| -86 | 2413736 | 1896-06-25 | 375.35 |
| -85 | 2414121 | 1897-07-15 | 374.21 |
| -84 | 2414483 | 1898-07-12 | 373.07 |
| -83 | 2414860 | 1899-07-24 | 372 |
| -82 | 2415241 | 1900-08-09 | 370.86 |
| -81 | 2415602 | 1901-08-05 | 371.28 |
| -80 | 2415968 | 1902-08-06 | 371.5 |
| -79 | 2416334 | 1903-08-07 | 368.85 |
| -78 | 2416715 | 1904-08-22 | 366.43 |
| -77 | 2417087 | 1905-08-29 | 367.58 |
| -76 | 2417457 | 1906-09-03 | 368.71 |
| -75 | 2417808 | 1907-08-20 | 366 |
| -74 | 2418165 | 1908-08-11 | 361.85 |
| -73 | 2418551 | 1909-09-01 | 360.65 |
| -72 | 2418913 | 1910-08-29 | 362.65 |
| -71 | 2419260 | 1911-08-11 | 364.71 |
| -70 | 2419608 | 1912-07-24 | 364.35 |
| -69 | 2419985 | 1913-08-05 | 363.64 |
| -68 | 2420357 | 1914-08-12 | 365 |
| -67 | 2420722 | 1915-08-12 | 367 |
| -66 | 2421095 | 1916-08-19 | 367.21 |
| -65 | 2421460 | 1917-08-19 | 366.57 |
| -64 | 2421823 | 1918-08-17 | 366.78 |
| -63 | 2422183 | 1919-08-12 | 366.65 |
| -62 | 2422551 | 1920-08-14 | 367 |
| -61 | 2422923 | 1921-08-21 | 368.43 |
| -60 | 2423291 | 1922-08-24 | 369.85 |
| -59 | 2423659 | 1923-08-27 | 370.28 |
| -58 | 2424034 | 1924-09-05 | 370.08 |
| -57 | 2424407 | 1925-09-13 | 370.22 |
| -56 | 2424777 | 1926-09-18 | 370.71 |
| -55 | 2425141 | 1927-09-17 | 371.14 |
| -54 | 2425514 | 1928-09-24 | 370.35 |
| -53 | 2425883 | 1929-09-28 | 370.22 |
| -52 | 2426257 | 1930-10-07 | 370.5 |
| -51 | 2426632 | 1931-10-17 | 370.71 |
| -50 | 2426994 | 1932-10-13 | 370.28 |
| -49 | 2427373 | 1933-10-27 | 369.28 |
| -48 | 2427732 | 1934-10-21 | 368.29 |
| -47 | 2428113 | 1935-11-06 | 367.5 |
| -46 | 2428468 | 1936-10-26 | 367.57 |
| -45 | 2428842 | 1937-11-04 | 367.78 |
| -44 | 2429203 | 1938-10-31 | 366.85 |
| -43 | 2429568 | 1939-10-31 | 366.15 |
| -42 | 2429945 | 1940-11-11 | 365.86 |
| -41 | 2430309 | 1941-11-10 | 364.57 |
| -40 | 2430672 | 1942-11-08 | 364.57 |
| -39 | 2431035 | 1943-11-06 | 364.28 |
| -38 | 2431397 | 1944-11-02 | 363.58 |
| -37 | 2431752 | 1945-10-23 | 363.86 |
| -36 | 2432123 | 1946-10-29 | 364.43 |
| -35 | 2432490 | 1947-10-31 | 365.78 |
| -34 | 2432854 | 1948-10-29 | 367.07 |
| -33 | 2433221 | 1949-10-31 | 367.15 |
| -32 | 2433588 | 1950-11-02 | 366.86 |
| -31 | 2433965 | 1951-11-14 | 366.43 |
| -30 | 2434323 | 1952-11-06 | 367 |
| -29 | 2434692 | 1953-11-10 | 367.5 |
| -28 | 2435057 | 1954-11-10 | 366.65 |
| -27 | 2435417 | 1955-11-05 | 366.79 |
| -26 | 2435796 | 1956-11-18 | 367.14 |
| -25 | 2436158 | 1957-11-15 | 367.35 |
| -24 | 2436528 | 1958-11-20 | 368 |
| -23 | 2436895 | 1959-11-22 | 367.65 |
| -22 | 2437260 | 1960-11-21 | 368.58 |
| -21 | 2437632 | 1961-11-28 | 369.78 |
| -20 | 2437994 | 1962-11-25 | 370.64 |
| -19 | 2438366 | 1963-12-02 | 373.43 |
| -18 | 2438748 | 1964-12-18 | 374.65 |
| -17 | 2439115 | 1965-12-20 | 373.93 |
| -16 | 2439497 | 1967-01-06 | 374.71 |
| -15 | 2439886 | 1968-01-30 | 374 |
| -14 | 2440251 | 1969-01-29 | 371.93 |
| -13 | 2440610 | 1970-01-23 | 371.29 |
| -12 | 2440996 | 1971-02-13 | 370.36 |
| -11 | 2441354 | 1972-02-06 | 370.5 |
| -10 | 2441716 | 1973-02-02 | 371.78 |
| -9 | 2442094 | 1974-02-15 | 371.57 |
| -8 | 2442474 | 1975-03-02 | 371.29 |
| -7 | 2442850 | 1976-03-12 | 372.22 |
| -6 | 2443216 | 1977-03-13 | 371.78 |
| -5 | 2443592 | 1978-03-24 | 370.07 |
| -4 | 2443956 | 1979-03-23 | 369.5 |
| -3 | 2444325 | 1980-03-26 | 369.58 |
| -2 | 2444690 | 1981-03-26 | 369 |
| -1 | 2445059 | 1982-03-30 | 368.85 |
| 0 | 2445438 | 1983-04-13 | 369.28 |
| 1 | 2445802 | 1984-04-11 | 370.5 |
| 2 | 2446172 | 1985-04-16 | 371.08 |
| 3 | 2446540 | 1986-04-19 | 369.79 |
| 4 | 2446911 | 1987-04-25 | 369.5 |
| 5 | 2447291 | 1988-05-09 | 370.21 |
| 6 | 2447653 | 1989-05-06 | 370.71 |
| 7 | 2448021 | 1990-05-09 | 370.86 |
| 8 | 2448392 | 1991-05-15 | 369.86 |
| 9 | 2448765 | 1992-05-22 | 370 |
| 10 | 2449137 | 1993-05-29 | 371 |
| 11 | 2449506 | 1994-06-02 | 370.93 |
| 12 | 2449874 | 1995-06-05 | 371.29 |
| 13 | 2450250 | 1996-06-15 | 371.72 |
| 14 | 2450618 | 1997-06-18 | 371.85 |
| 15 | 2450988 | 1998-06-23 | 372.35 |
| 16 | 2451367 | 1999-07-07 | 372.85 |
| 17 | 2451739 | 2000-07-13 | 373.65 |
| 18 | 2452110 | 2001-07-19 | 374.15 |
| 19 | 2452483 | 2002-07-27 | 373.5 |
| 20 | 2452861 | 2003-08-09 | 373.14 |
| 21 | 2453238 | 2004-08-20 | 373.21 |
| 22 | 2453606 | 2005-08-23 | 372.93 |
| 23 | 2453978 | 2006-08-30 | 371.79 |
| 24 | 2454352 | 2007-09-08 | 369.93 |
| 25 | 2454722 | 2008-09-12 | 369.14 |
| 26 | 2455092 | 2009-09-17 | 368.21 |
| 27 | 2455457 | 2010-09-17 | 367.65 |
| 28 | 2455821 | 2011-09-16 | 366.72 |
| 29 | 2456191 | 2012-09-20 | 364.93 |
| 30 | 2456548 | 2013-09-12 | 364.93 |
| 31 | 2456929 | 2014-09-28 | 365.5 |
| 32 | 2457279 | 2015-09-13 | 366 |
| 33 | 2457644 | 2016-09-12 | 367.08 |
| 34 | 2458014 | 2017-09-17 | 367.35 |
| 35 | 2458381 | 2018-09-19 | 368.43 |
| 36 | 2458755 | 2019-09-28 | 370.07 |
| 37 | 2459123 | 2020-09-30 | 370.29 |
| 38 | 2459497 | 2021-10-09 | 371.17 |
| 39 | 2459869 | 2022-10-16 | 372 |
| 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. |