| E | O (JD) | O (dat) | Period |
| -122 | 2400119 | 1859-03-15 | 335.74 |
| -121 | 2400458 | 1860-02-17 | 335.82 |
| -119 | 2401115 | 1861-12-05 | 335.92 |
| -117 | 2401820 | 1863-11-10 | 335.82 |
| -112 | 2403480 | 1868-05-27 | 335.3 |
| -111 | 2403817 | 1869-04-29 | 335.28 |
| -110 | 2404153 | 1870-03-31 | 333.83 |
| -109 | 2404484 | 1871-02-25 | 332.05 |
| -108 | 2404811 | 1872-01-18 | 335.29 |
| -107 | 2405144 | 1872-12-16 | 337.08 |
| -106 | 2405469 | 1873-11-06 | 337.21 |
| -104 | 2406140 | 1875-09-08 | 337.76 |
| -99 | 2407863 | 1880-05-27 | 338.63 |
| -98 | 2408197 | 1881-04-26 | 339.54 |
| -97 | 2408533 | 1882-03-28 | 339.95 |
| -96 | 2408868 | 1883-02-26 | 338.89 |
| -95 | 2409214 | 1884-02-07 | 337.91 |
| -94 | 2409548 | 1885-01-06 | 338.65 |
| -93 | 2409880 | 1885-12-04 | 339.03 |
| -92 | 2410223 | 1886-11-12 | 338.88 |
| -85 | 2412595 | 1893-05-11 | 338.7 |
| -84 | 2412940 | 1894-04-21 | 338.35 |
| -83 | 2413276 | 1895-03-23 | 339.23 |
| -82 | 2413617 | 1896-02-27 | 339.05 |
| -81 | 2413951 | 1897-01-26 | 339.64 |
| -80 | 2414274 | 1897-12-15 | 341.72 |
| -79 | 2414649 | 1898-12-25 | 339.37 |
| -78 | 2414950 | 1899-10-22 | 338.22 |
| -77 | 2415340 | 1900-11-16 | 340.39 |
| -76 | 2415660 | 1901-10-02 | 341.34 |
| -73 | 2416663 | 1904-07-01 | 340.61 |
| -72 | 2416993 | 1905-05-27 | 338.33 |
| -71 | 2417359 | 1906-05-28 | 336.44 |
| -70 | 2417708 | 1907-05-12 | 337.19 |
| -69 | 2418022 | 1908-03-21 | 338.43 |
| -68 | 2418358 | 1909-02-20 | 338.42 |
| -67 | 2418698 | 1910-01-26 | 335.57 |
| -66 | 2419020 | 1910-12-14 | 336 |
| -65 | 2419374 | 1911-12-03 | 336.72 |
| -64 | 2419716 | 1912-11-09 | 336.57 |
| -63 | 2420049 | 1913-10-08 | 338.28 |
| -62 | 2420385 | 1914-09-09 | 337.14 |
| -61 | 2420709 | 1915-07-30 | 333.93 |
| -60 | 2421059 | 1916-07-14 | 333.87 |
| -59 | 2421395 | 1917-06-15 | 335.5 |
| -58 | 2421719 | 1918-05-05 | 337.49 |
| -57 | 2422046 | 1919-03-28 | 338.14 |
| -56 | 2422393 | 1920-03-09 | 339.22 |
| -55 | 2422738 | 1921-02-17 | 340.01 |
| -54 | 2423081 | 1922-01-26 | 341.79 |
| -53 | 2423421 | 1923-01-01 | 343.85 |
| -52 | 2423782 | 1923-12-28 | 342.99 |
| -51 | 2424092 | 1924-11-02 | 343.43 |
| -50 | 2424458 | 1925-11-03 | 344.44 |
| -49 | 2424795 | 1926-10-06 | 343.86 |
| -48 | 2425138 | 1927-09-14 | 344.42 |
| -47 | 2425489 | 1928-08-30 | 342.21 |
| -46 | 2425835 | 1929-08-11 | 339.14 |
| -45 | 2426182 | 1930-07-24 | 339.72 |
| -44 | 2426514 | 1931-06-21 | 338.72 |
| -43 | 2426827 | 1932-04-29 | 336.78 |
| -42 | 2427174 | 1933-04-11 | 334.99 |
| -41 | 2427515 | 1934-03-18 | 333.93 |
| -40 | 2427854 | 1935-02-20 | 335.94 |
| -39 | 2428185 | 1936-01-17 | 337.5 |
| -38 | 2428522 | 1936-12-19 | 336.21 |
| -37 | 2428849 | 1937-11-11 | 334.35 |
| -36 | 2429195 | 1938-10-23 | 333.93 |
| -35 | 2429531 | 1939-09-24 | 334.51 |
| -34 | 2429865 | 1940-08-23 | 335.07 |
| -33 | 2430185 | 1941-07-09 | 335.49 |
| -32 | 2430529 | 1942-06-18 | 334.42 |
| -31 | 2430861 | 1943-05-16 | 334.57 |
| -30 | 2431201 | 1944-04-20 | 336.51 |
| -29 | 2431540 | 1945-03-25 | 338.14 |
| -28 | 2431868 | 1946-02-16 | 338.71 |
| -27 | 2432212 | 1947-01-26 | 338.99 |
| -26 | 2432549 | 1947-12-29 | 339 |
| -25 | 2432899 | 1948-12-13 | 339.22 |
| -24 | 2433233 | 1949-11-12 | 339.43 |
| -23 | 2433575 | 1950-10-20 | 338.85 |
| -22 | 2433912 | 1951-09-22 | 337.85 |
| -21 | 2434245 | 1952-08-20 | 336.79 |
| -20 | 2434587 | 1953-07-28 | 336.65 |
| -19 | 2434918 | 1954-06-24 | 336.79 |
| -18 | 2435260 | 1955-06-01 | 336.28 |
| -17 | 2435587 | 1956-04-23 | 336.42 |
| -16 | 2435934 | 1957-04-05 | 336.72 |
| -15 | 2436268 | 1958-03-05 | 335.94 |
| -14 | 2436597 | 1959-01-28 | 336.86 |
| -13 | 2436945 | 1960-01-11 | 337.57 |
| -12 | 2437274 | 1960-12-05 | 336.85 |
| -11 | 2437607 | 1961-11-03 | 338.07 |
| -10 | 2437956 | 1962-10-18 | 338.01 |
| -9 | 2438291 | 1963-09-18 | 336.86 |
| -8 | 2438627 | 1964-08-19 | 336.78 |
| -7 | 2438971 | 1965-07-29 | 336.78 |
| -6 | 2439303 | 1966-06-26 | 336.14 |
| -5 | 2439632 | 1967-05-21 | 336.08 |
| -4 | 2439964 | 1968-04-17 | 336.64 |
| -3 | 2440314 | 1969-04-02 | 336.49 |
| -2 | 2440639 | 1970-02-21 | 338.07 |
| -1 | 2440984 | 1971-02-01 | 340 |
| 0 | 2441327 | 1972-01-10 | 339.37 |
| 1 | 2441658 | 1972-12-06 | 339.57 |
| 2 | 2442010 | 1973-11-23 | 340.85 |
| 3 | 2442346 | 1974-10-25 | 340.14 |
| 4 | 2442683 | 1975-09-27 | 338.5 |
| 5 | 2443024 | 1976-09-02 | 337.51 |
| 6 | 2443371 | 1977-08-15 | 338.64 |
| 7 | 2443702 | 1978-07-12 | 338.28 |
| 8 | 2444022 | 1979-05-28 | 336.49 |
| 9 | 2444371 | 1980-05-11 | 336.14 |
| 10 | 2444726 | 1981-05-01 | 336.01 |
| 11 | 2445039 | 1982-03-10 | 336.93 |
| 12 | 2445379 | 1983-02-13 | 336.92 |
| 13 | 2445722 | 1984-01-22 | 335.07 |
| 14 | 2446055 | 1984-12-20 | 334 |
| 15 | 2446386 | 1985-11-16 | 333.37 |
| 16 | 2446724 | 1986-10-20 | 331.22 |
| 17 | 2447064 | 1987-09-25 | 329.49 |
| 18 | 2447377 | 1988-08-03 | 330.21 |
| 19 | 2447708 | 1989-06-30 | 329.93 |
| 20 | 2448030 | 1990-05-18 | 329.58 |
| 21 | 2448360 | 1991-04-13 | 331.14 |
| 22 | 2448704 | 1992-03-22 | 333.64 |
| 23 | 2449025 | 1993-02-06 | 335.99 |
| 24 | 2449377 | 1994-01-24 | 336.93 |
| 25 | 2449700 | 1994-12-13 | 338.01 |
| 26 | 2450056 | 1995-12-04 | 340.64 |
| 27 | 2450386 | 1996-10-29 | 341.21 |
| 28 | 2450721 | 1997-09-29 | 340.92 |
| 29 | 2451075 | 1998-09-18 | 340.07 |
| 30 | 2451423 | 1999-09-01 | 339.51 |
| 31 | 2451756 | 2000-07-30 | 341.79 |
| 32 | 2452094 | 2001-07-03 | 341.28 |
| 33 | 2452423 | 2002-05-28 | 338.99 |
| 34 | 2452772 | 2003-05-12 | 338.72 |
| 35 | 2453120 | 2004-04-24 | 339.65 |
| 36 | 2453454 | 2005-03-24 | 340.79 |
| 37 | 2453790 | 2006-02-23 | 341.14 |
| 38 | 2454131 | 2007-01-30 | 340.35 |
| 39 | 2454474 | 2008-01-08 | 340.79 |
| 40 | 2454814 | 2008-12-13 | 341.22 |
| 41 | 2455157 | 2009-11-21 | 341 |
| 42 | 2455500 | 2010-10-30 | 340.64 |
| 43 | 2455845 | 2011-10-10 | 340.21 |
| 44 | 2456176 | 2012-09-05 | 339.29 |
| 45 | 2456519 | 2013-08-14 | 338.37 |
| 46 | 2456855 | 2014-07-16 | 338.72 |
| 47 | 2457196 | 2015-06-22 | 338.57 |
| 48 | 2457525 | 2016-05-16 | 337.78 |
| 49 | 2457869 | 2017-04-25 | 337.29 |
| 50 | 2458218 | 2018-04-09 | 336.51 |
| 51 | 2458543 | 2019-02-28 | 336.72 |
| 52 | 2458881 | 2020-02-01 | 337.39 |
| 53 | 2459215 | 2020-12-31 | 334.65 |
| 54 | 2459547 | 2021-11-28 | 334.09 |
| 55 | 2459888 | 2022-11-04 | 335.91 |
| 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. |