| E | O (JD) | O (dat) | Period |
| -141 | 2399175 | 1856-08-13 | 345.4 |
| -140 | 2399516 | 1857-07-20 | 345.27 |
| -139 | 2399861 | 1858-06-30 | 345.17 |
| -138 | 2400226 | 1859-06-30 | 345.18 |
| -127 | 2404012 | 1869-11-10 | 345.23 |
| -126 | 2404354 | 1870-10-18 | 345.22 |
| -125 | 2404701 | 1871-09-30 | 343.64 |
| -124 | 2405042 | 1872-09-05 | 341.19 |
| -122 | 2405732 | 1874-07-27 | 338.69 |
| -121 | 2406073 | 1875-07-03 | 337.37 |
| -120 | 2406385 | 1876-05-10 | 335.88 |
| -119 | 2406724 | 1877-04-14 | 333.8 |
| -118 | 2407061 | 1878-03-17 | 331.86 |
| -117 | 2407392 | 1879-02-11 | 332 |
| -116 | 2407725 | 1880-01-10 | 331.75 |
| -115 | 2408056 | 1880-12-06 | 330.77 |
| -114 | 2408395 | 1881-11-10 | 330.08 |
| -110 | 2409707 | 1885-06-14 | 329.85 |
| -109 | 2410037 | 1886-05-10 | 329.62 |
| -106 | 2411025 | 1889-01-22 | 329.69 |
| -104 | 2411680 | 1890-11-08 | 330.35 |
| -103 | 2412013 | 1891-10-07 | 330.3 |
| -102 | 2412338 | 1892-08-27 | 330.17 |
| -101 | 2412685 | 1893-08-09 | 331.4 |
| -100 | 2413015 | 1894-07-05 | 331.06 |
| -99 | 2413335 | 1895-05-21 | 329.5 |
| -98 | 2413670 | 1896-04-20 | 328.22 |
| -97 | 2414006 | 1897-03-22 | 326.61 |
| -94 | 2414984 | 1899-11-25 | 326.11 |
| -93 | 2415298 | 1900-10-05 | 326.06 |
| -92 | 2415633 | 1901-09-05 | 324.83 |
| -91 | 2415946 | 1902-07-15 | 324.38 |
| -90 | 2416274 | 1903-06-08 | 324.79 |
| -89 | 2416600 | 1904-04-29 | 324.36 |
| -88 | 2416923 | 1905-03-18 | 324.71 |
| -87 | 2417257 | 1906-02-15 | 325.36 |
| -86 | 2417572 | 1906-12-27 | 323.57 |
| -85 | 2417900 | 1907-11-20 | 322.93 |
| -84 | 2418225 | 1908-10-10 | 322.43 |
| -83 | 2418550 | 1909-08-31 | 321.36 |
| -82 | 2418854 | 1910-07-01 | 320.79 |
| -81 | 2419190 | 1911-06-02 | 318.79 |
| -80 | 2419504 | 1912-04-11 | 317.29 |
| -79 | 2419824 | 1913-02-25 | 317.5 |
| -78 | 2420139 | 1914-01-06 | 316.07 |
| -77 | 2420449 | 1914-11-12 | 313.71 |
| -76 | 2420768 | 1915-09-27 | 311.86 |
| -75 | 2421081 | 1916-08-05 | 310.5 |
| -74 | 2421388 | 1917-06-08 | 311.21 |
| -73 | 2421698 | 1918-04-14 | 310.64 |
| -72 | 2421996 | 1919-02-06 | 309.64 |
| -71 | 2422314 | 1919-12-21 | 309.71 |
| -70 | 2422631 | 1920-11-02 | 309.71 |
| -69 | 2422935 | 1921-09-02 | 310.79 |
| -68 | 2423249 | 1922-07-13 | 311.21 |
| -67 | 2423556 | 1923-05-16 | 310 |
| -66 | 2423866 | 1924-03-21 | 309.29 |
| -65 | 2424179 | 1925-01-28 | 308.79 |
| -64 | 2424488 | 1925-12-03 | 309.07 |
| -63 | 2424797 | 1926-10-08 | 309.57 |
| -62 | 2425099 | 1927-08-06 | 309.07 |
| -61 | 2425408 | 1928-06-10 | 308.07 |
| -60 | 2425724 | 1929-04-22 | 306.57 |
| -59 | 2426032 | 1930-02-24 | 305.79 |
| -58 | 2426340 | 1930-12-29 | 305.14 |
| -57 | 2426640 | 1931-10-25 | 304.43 |
| -56 | 2426937 | 1932-08-17 | 304.14 |
| -55 | 2427240 | 1933-06-16 | 302.14 |
| -54 | 2427539 | 1934-04-11 | 300.5 |
| -53 | 2427855 | 1935-02-21 | 301.64 |
| -52 | 2428159 | 1935-12-22 | 302.71 |
| -51 | 2428443 | 1936-10-01 | 302.36 |
| -50 | 2428744 | 1937-07-29 | 300.86 |
| -49 | 2429056 | 1938-06-06 | 299.79 |
| -48 | 2429359 | 1939-04-05 | 300.36 |
| -47 | 2429653 | 1940-01-24 | 301.29 |
| -46 | 2429953 | 1940-11-19 | 300.21 |
| -45 | 2430258 | 1941-09-20 | 298.57 |
| -44 | 2430549 | 1942-07-08 | 299.43 |
| -43 | 2430856 | 1943-05-11 | 300.79 |
| -42 | 2431147 | 1944-02-26 | 300.64 |
| -41 | 2431448 | 1944-12-23 | 301.14 |
| -40 | 2431756 | 1945-10-27 | 301.93 |
| -39 | 2432061 | 1946-08-28 | 302.43 |
| -38 | 2432359 | 1947-06-22 | 302.14 |
| -37 | 2432664 | 1948-04-22 | 301.43 |
| -36 | 2432968 | 1949-02-20 | 301.07 |
| -35 | 2433269 | 1949-12-18 | 300.29 |
| -34 | 2433556 | 1950-10-01 | 300.64 |
| -33 | 2433868 | 1951-08-09 | 299.79 |
| -32 | 2434164 | 1952-05-31 | 298.29 |
| -31 | 2434460 | 1953-03-23 | 298.29 |
| -30 | 2434772 | 1954-01-29 | 297.36 |
| -29 | 2435057 | 1954-11-10 | 295.57 |
| -28 | 2435356 | 1955-09-05 | 295.57 |
| -27 | 2435645 | 1956-06-20 | 294.71 |
| -26 | 2435942 | 1957-04-13 | 293.5 |
| -25 | 2436228 | 1958-01-24 | 293.93 |
| -24 | 2436534 | 1958-11-26 | 294 |
| -23 | 2436824 | 1959-09-12 | 293.21 |
| -22 | 2437114 | 1960-06-28 | 293 |
| -21 | 2437414 | 1961-04-24 | 293.21 |
| -20 | 2437703 | 1962-02-07 | 292.86 |
| -19 | 2437989 | 1962-11-20 | 293 |
| -18 | 2438283 | 1963-09-10 | 292.36 |
| -17 | 2438584 | 1964-07-07 | 291.93 |
| -16 | 2438874 | 1965-04-23 | 292.57 |
| -15 | 2439166 | 1966-02-09 | 292.57 |
| -14 | 2439455 | 1966-11-25 | 291.64 |
| -13 | 2439749 | 1967-09-15 | 290.36 |
| -12 | 2440039 | 1968-07-01 | 288.86 |
| -11 | 2440329 | 1969-04-17 | 288.29 |
| -10 | 2440621 | 1970-02-03 | 287.43 |
| -9 | 2440902 | 1970-11-11 | 285.64 |
| -8 | 2441182 | 1971-08-18 | 284.57 |
| -7 | 2441475 | 1972-06-06 | 283.64 |
| -6 | 2441753 | 1973-03-11 | 283.36 |
| -5 | 2442034 | 1973-12-17 | 284.21 |
| -4 | 2442318 | 1974-09-27 | 284 |
| -3 | 2442603 | 1975-07-09 | 283.36 |
| -2 | 2442887 | 1976-04-18 | 284.07 |
| -1 | 2443176 | 1977-02-01 | 284.29 |
| 0 | 2443457 | 1977-11-09 | 283.36 |
| 1 | 2443738 | 1978-08-17 | 283.29 |
| 2 | 2444026 | 1979-06-01 | 282.71 |
| 3 | 2444306 | 1980-03-07 | 281.07 |
| 4 | 2444582 | 1980-12-08 | 280.86 |
| 5 | 2444874 | 1981-09-26 | 281 |
| 6 | 2445147 | 1982-06-26 | 280.43 |
| 7 | 2445421 | 1983-03-27 | 280.86 |
| 8 | 2445706 | 1984-01-06 | 281.36 |
| 9 | 2445992 | 1984-10-18 | 280.71 |
| 10 | 2446266 | 1985-07-19 | 282 |
| 11 | 2446554 | 1986-05-03 | 283.07 |
| 12 | 2446841 | 1987-02-14 | 281.93 |
| 13 | 2447110 | 1987-11-10 | 281.21 |
| 14 | 2447406 | 1988-09-01 | 280.71 |
| 15 | 2447684 | 1989-06-06 | 280.07 |
| 16 | 2447961 | 1990-03-10 | 280.07 |
| 17 | 2448234 | 1990-12-08 | 278.36 |
| 18 | 2448516 | 1991-09-16 | 277 |
| 19 | 2448800 | 1992-06-26 | 277.43 |
| 20 | 2449072 | 1993-03-25 | 277.71 |
| 21 | 2449341 | 1993-12-19 | 277 |
| 22 | 2449627 | 1994-10-01 | 275.21 |
| 23 | 2449902 | 1995-07-03 | 274.64 |
| 24 | 2450181 | 1996-04-07 | 274.86 |
| 25 | 2450447 | 1996-12-29 | 274.07 |
| 26 | 2450722 | 1997-09-30 | 273 |
| 27 | 2450995 | 1998-06-30 | 273 |
| 28 | 2451266 | 1999-03-28 | 273.57 |
| 29 | 2451539 | 1999-12-26 | 273.07 |
| 30 | 2451812 | 2000-09-24 | 272.43 |
| 31 | 2452093 | 2001-07-02 | 273 |
| 32 | 2452365 | 2002-03-31 | 273.43 |
| 33 | 2452627 | 2002-12-18 | 272.86 |
| 34 | 2452904 | 2003-09-21 | 271.36 |
| 35 | 2453179 | 2004-06-22 | 270.71 |
| 36 | 2453454 | 2005-03-24 | 270.93 |
| 37 | 2453717 | 2005-12-12 | 270.43 |
| 38 | 2453987 | 2006-09-08 | 269.86 |
| 39 | 2454261 | 2007-06-09 | 270.21 |
| 40 | 2454524 | 2008-02-27 | 271.29 |
| 41 | 2454793 | 2008-11-22 | 271.57 |
| 42 | 2455068 | 2009-08-24 | 271.5 |
| 43 | 2455348 | 2010-05-31 | 272.71 |
| 44 | 2455621 | 2011-02-28 | 273 |
| 45 | 2455885 | 2011-11-19 | 272.71 |
| 46 | 2456164 | 2012-08-24 | 272.57 |
| 47 | 2456439 | 2013-05-26 | 272 |
| 48 | 2456700 | 2014-02-11 | 272.07 |
| 49 | 2456979 | 2014-11-17 | 271.29 |
| 50 | 2457253 | 2015-08-18 | 270 |
| 51 | 2457524 | 2016-05-15 | 270.79 |
| 52 | 2457791 | 2017-02-06 | 271.21 |
| 53 | 2458056 | 2017-10-29 | 270.79 |
| 54 | 2458327 | 2018-07-27 | 270.57 |
| 55 | 2458603 | 2019-04-29 | 269.86 |
| 56 | 2458873 | 2020-01-24 | 269.36 |
| 57 | 2459150 | 2020-10-27 | 269.86 |
| 58 | 2459415 | 2021-07-19 | 270.34 |
| 59 | 2459678 | 2022-04-08 | 269.25 |
| 60 | 2459940 | 2022-12-26 | 269.1 |
| 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. |