| E | O (JD) | O (dat) | Period |
| -104 | 2405787 | 1874-09-20 | 380 |
| -103 | 2406161 | 1875-09-29 | 381.14 |
| -102 | 2406546 | 1876-10-18 | 379.33 |
| -101 | 2406922 | 1877-10-29 | 379.3 |
| -100 | 2407304 | 1878-11-15 | 381.62 |
| -98 | 2408072 | 1880-12-22 | 382.34 |
| -97 | 2408430 | 1881-12-15 | 382.72 |
| -95 | 2409213 | 1884-02-06 | 381.83 |
| -94 | 2409604 | 1885-03-03 | 381.12 |
| -93 | 2409985 | 1886-03-19 | 382.38 |
| -92 | 2410372 | 1887-04-10 | 381.8 |
| -91 | 2410727 | 1888-03-30 | 378.36 |
| -90 | 2411128 | 1889-05-05 | 376.29 |
| -89 | 2411492 | 1890-05-04 | 375.79 |
| -88 | 2411878 | 1891-05-25 | 375.29 |
| -87 | 2412236 | 1892-05-17 | 374.36 |
| -86 | 2412621 | 1893-06-06 | 374.57 |
| -85 | 2412997 | 1894-06-17 | 376.21 |
| -84 | 2413356 | 1895-06-11 | 376.79 |
| -83 | 2413740 | 1896-06-29 | 377 |
| -82 | 2414124 | 1897-07-18 | 377.43 |
| -81 | 2414513 | 1898-08-11 | 379.36 |
| -80 | 2414876 | 1899-08-09 | 380.07 |
| -79 | 2415259 | 1900-08-27 | 378.79 |
| -78 | 2415643 | 1901-09-15 | 378.57 |
| -77 | 2416021 | 1902-09-28 | 378.42 |
| -76 | 2416396 | 1903-10-08 | 378.49 |
| -75 | 2416771 | 1904-10-17 | 378.64 |
| -74 | 2417166 | 1905-11-16 | 379 |
| -73 | 2417521 | 1906-11-06 | 380.29 |
| -72 | 2417913 | 1907-12-03 | 379.5 |
| -71 | 2418290 | 1908-12-14 | 378 |
| -70 | 2418680 | 1910-01-08 | 379.58 |
| -69 | 2419061 | 1911-01-24 | 380.08 |
| -68 | 2419419 | 1912-01-17 | 377.86 |
| -67 | 2419810 | 1913-02-11 | 377.36 |
| -66 | 2420191 | 1914-02-27 | 376.86 |
| -65 | 2420564 | 1915-03-07 | 379.29 |
| -64 | 2420929 | 1916-03-06 | 380 |
| -63 | 2421324 | 1917-04-05 | 378.21 |
| -62 | 2421693 | 1918-04-09 | 379.5 |
| -61 | 2422097 | 1919-05-18 | 380.86 |
| -60 | 2422452 | 1920-05-07 | 379.79 |
| -59 | 2422844 | 1921-06-03 | 379 |
| -58 | 2423224 | 1922-06-18 | 377.79 |
| -57 | 2423601 | 1923-06-30 | 377.07 |
| -56 | 2423969 | 1924-07-02 | 378.07 |
| -55 | 2424354 | 1925-07-22 | 377.07 |
| -54 | 2424725 | 1926-07-28 | 377.07 |
| -53 | 2425103 | 1927-08-10 | 377.56 |
| -52 | 2425486 | 1928-08-27 | 377.99 |
| -51 | 2425861 | 1929-09-06 | 379.43 |
| -50 | 2426243 | 1930-09-23 | 379.79 |
| -49 | 2426613 | 1931-09-28 | 379.21 |
| -48 | 2427002 | 1932-10-21 | 379.43 |
| -47 | 2427389 | 1933-11-12 | 379 |
| -46 | 2427756 | 1934-11-14 | 379.86 |
| -45 | 2428142 | 1935-12-05 | 378.93 |
| -44 | 2428517 | 1936-12-14 | 377.35 |
| -43 | 2428893 | 1937-12-25 | 377.49 |
| -42 | 2429281 | 1939-01-17 | 377.28 |
| -41 | 2429639 | 1940-01-10 | 377.42 |
| -40 | 2430035 | 1941-02-09 | 377.49 |
| -39 | 2430395 | 1942-02-04 | 376.99 |
| -38 | 2430785 | 1943-03-01 | 377.36 |
| -37 | 2431158 | 1944-03-08 | 376.64 |
| -36 | 2431537 | 1945-03-22 | 377.07 |
| -35 | 2431915 | 1946-04-04 | 377.64 |
| -34 | 2432288 | 1947-04-12 | 376.43 |
| -33 | 2432659 | 1948-04-17 | 377.43 |
| -32 | 2433050 | 1949-05-13 | 377.93 |
| -31 | 2433417 | 1950-05-15 | 378.36 |
| -30 | 2433796 | 1951-05-29 | 380.43 |
| -29 | 2434183 | 1952-06-19 | 381.01 |
| -28 | 2434560 | 1953-07-01 | 380.79 |
| -27 | 2434940 | 1954-07-16 | 381.36 |
| -26 | 2435333 | 1955-08-13 | 380.65 |
| -25 | 2435710 | 1956-08-24 | 379.93 |
| -24 | 2436088 | 1957-09-06 | 380.86 |
| -23 | 2436464 | 1958-09-17 | 380.08 |
| -22 | 2436844 | 1959-10-02 | 378.79 |
| -21 | 2437218 | 1960-10-10 | 380.21 |
| -20 | 2437614 | 1961-11-10 | 379.5 |
| -19 | 2437980 | 1962-11-11 | 377.78 |
| -18 | 2438366 | 1963-12-02 | 377.29 |
| -17 | 2438755 | 1964-12-25 | 375.5 |
| -16 | 2439110 | 1965-12-15 | 375.56 |
| -15 | 2439487 | 1966-12-27 | 374.78 |
| -14 | 2439857 | 1968-01-01 | 372.21 |
| -13 | 2440232 | 1969-01-10 | 374.64 |
| -12 | 2440620 | 1970-02-02 | 377.5 |
| -11 | 2440973 | 1971-01-21 | 379.36 |
| -10 | 2441359 | 1972-02-11 | 380.22 |
| -9 | 2441751 | 1973-03-09 | 379.94 |
| -8 | 2442131 | 1974-03-24 | 380.08 |
| -7 | 2442524 | 1975-04-21 | 381.21 |
| -6 | 2442888 | 1976-04-19 | 381.71 |
| -5 | 2443283 | 1977-05-19 | 380.21 |
| -4 | 2443631 | 1978-05-02 | 379.28 |
| -3 | 2444038 | 1979-06-13 | 379.21 |
| -2 | 2444416 | 1980-06-25 | 378.35 |
| -1 | 2444789 | 1981-07-03 | 379.71 |
| 0 | 2445176 | 1982-07-25 | 380.64 |
| 1 | 2445545 | 1983-07-29 | 379.08 |
| 2 | 2445923 | 1984-08-10 | 378.86 |
| 3 | 2446307 | 1985-08-29 | 379.29 |
| 4 | 2446691 | 1986-09-17 | 380.08 |
| 5 | 2447070 | 1987-10-01 | 380.15 |
| 6 | 2447439 | 1988-10-04 | 380.22 |
| 7 | 2447836 | 1989-11-05 | 379.36 |
| 8 | 2448206 | 1990-11-10 | 379.14 |
| 9 | 2448584 | 1991-11-23 | 378.64 |
| 10 | 2448969 | 1992-12-12 | 378.28 |
| 11 | 2449340 | 1993-12-18 | 378.42 |
| 12 | 2449729 | 1995-01-11 | 379.35 |
| 13 | 2450081 | 1995-12-29 | 378.21 |
| 14 | 2450490 | 1997-02-10 | 377.71 |
| 15 | 2450850 | 1998-02-05 | 378.94 |
| 16 | 2451251 | 1999-03-13 | 379.08 |
| 17 | 2451597 | 2000-02-22 | 378.36 |
| 18 | 2452000 | 2001-03-31 | 377.5 |
| 19 | 2452374 | 2002-04-09 | 376.43 |
| 20 | 2452743 | 2003-04-13 | 376.57 |
| 21 | 2453125 | 2004-04-29 | 375.93 |
| 22 | 2453500 | 2005-05-09 | 373.56 |
| 23 | 2453871 | 2006-05-15 | 373.99 |
| 24 | 2454249 | 2007-05-28 | 373.86 |
| 25 | 2454611 | 2008-05-24 | 374 |
| 26 | 2454993 | 2009-06-10 | 375.57 |
| 27 | 2455360 | 2010-06-12 | 376.29 |
| 28 | 2455742 | 2011-06-29 | 377.07 |
| 29 | 2456119 | 2012-07-10 | 377.64 |
| 30 | 2456510 | 2013-08-05 | 376.79 |
| 31 | 2456878 | 2014-08-08 | 376.43 |
| 32 | 2457261 | 2015-08-26 | 374.57 |
| 33 | 2457630 | 2016-08-29 | 372 |
| 34 | 2457998 | 2017-09-01 | 371.71 |
| 35 | 2458374 | 2018-09-12 | 372.21 |
| 36 | 2458731 | 2019-09-04 | 371.38 |
| 37 | 2459106 | 2020-09-13 | 370.91 |
| 38 | 2459486 | 2021-09-28 | 370.25 |
| 39 | 2459864 | 2022-10-11 | 369.11 |
| 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. |