| E | O (JD) | O (dat) | Period |
| -179 | 2395431 | 1846-05-14 | 278.53 |
| -178 | 2395703 | 1847-02-10 | 278.35 |
| -175 | 2396567 | 1849-06-23 | 278.34 |
| -154 | 2402430 | 1865-07-12 | 278.69 |
| -122 | 2411320 | 1889-11-13 | 278.67 |
| -121 | 2411580 | 1890-07-31 | 278.51 |
| -120 | 2411880 | 1891-05-27 | 278.28 |
| -118 | 2412431 | 1892-11-28 | 278.49 |
| -117 | 2412701 | 1893-08-25 | 281.37 |
| -116 | 2412990 | 1894-06-10 | 281.06 |
| -115 | 2413278 | 1895-03-25 | 279.74 |
| -114 | 2413561 | 1896-01-02 | 281.36 |
| -113 | 2413841 | 1896-10-08 | 282.21 |
| -112 | 2414116 | 1897-07-10 | 281.49 |
| -111 | 2414391 | 1898-04-11 | 281.64 |
| -110 | 2414680 | 1899-01-25 | 280.35 |
| -109 | 2414962 | 1899-11-03 | 279.79 |
| -108 | 2415247 | 1900-08-15 | 281.71 |
| -107 | 2415535 | 1901-05-30 | 282.71 |
| -106 | 2415792 | 1902-02-11 | 283.01 |
| -105 | 2416082 | 1902-11-28 | 282.72 |
| -104 | 2416369 | 1903-09-11 | 281.36 |
| -103 | 2416660 | 1904-06-28 | 282.93 |
| -102 | 2416944 | 1905-04-08 | 284.42 |
| -101 | 2417223 | 1906-01-12 | 283.21 |
| -100 | 2417498 | 1906-10-14 | 281.33 |
| -99 | 2417790 | 1907-08-02 | 279.37 |
| -98 | 2418066 | 1908-05-04 | 278.83 |
| -97 | 2418350 | 1909-02-12 | 279.4 |
| -95 | 2418899 | 1910-08-15 | 279.5 |
| -94 | 2419175 | 1911-05-18 | 279.2 |
| -91 | 2420011 | 1913-08-31 | 279.2 |
| -90 | 2420298 | 1914-06-14 | 280 |
| -89 | 2420580 | 1915-03-23 | 281.39 |
| -88 | 2420860 | 1915-12-28 | 281.62 |
| -87 | 2421140 | 1916-10-03 | 280.5 |
| -86 | 2421429 | 1917-07-19 | 279.86 |
| -85 | 2421710 | 1918-04-26 | 280.65 |
| -84 | 2421982 | 1919-01-23 | 280.22 |
| -83 | 2422254 | 1919-10-22 | 278.29 |
| -82 | 2422542 | 1920-08-05 | 277.49 |
| -81 | 2422827 | 1921-05-17 | 278.35 |
| -80 | 2423096 | 1922-02-10 | 280.35 |
| -79 | 2423369 | 1922-11-10 | 280.71 |
| -78 | 2423655 | 1923-08-23 | 278.71 |
| -77 | 2423934 | 1924-05-28 | 278.5 |
| -76 | 2424227 | 1925-03-17 | 279.72 |
| -75 | 2424499 | 1925-12-14 | 279.15 |
| -74 | 2424772 | 1926-09-13 | 278.65 |
| -73 | 2425050 | 1927-06-18 | 278 |
| -72 | 2425331 | 1928-03-25 | 276.71 |
| -71 | 2425601 | 1928-12-20 | 277.21 |
| -70 | 2425889 | 1929-10-04 | 278.99 |
| -69 | 2426164 | 1930-07-06 | 279.5 |
| -68 | 2426436 | 1931-04-04 | 279 |
| -67 | 2426716 | 1932-01-09 | 279.43 |
| -66 | 2427012 | 1932-10-31 | 279.15 |
| -65 | 2427282 | 1933-07-28 | 279.08 |
| -64 | 2427556 | 1934-04-28 | 279.44 |
| -63 | 2427846 | 1935-02-12 | 278 |
| -62 | 2428115 | 1935-11-08 | 277.28 |
| -61 | 2428392 | 1936-08-11 | 278.49 |
| -60 | 2428672 | 1937-05-18 | 277.99 |
| -59 | 2428948 | 1938-02-18 | 276.93 |
| -58 | 2429228 | 1938-11-25 | 277.36 |
| -57 | 2429509 | 1939-09-02 | 277.93 |
| -56 | 2429785 | 1940-06-04 | 278.29 |
| -55 | 2430053 | 1941-02-27 | 278.01 |
| -54 | 2430337 | 1941-12-08 | 277.22 |
| -53 | 2430618 | 1942-09-15 | 278.14 |
| -52 | 2430898 | 1943-06-22 | 280.28 |
| -51 | 2431170 | 1944-03-20 | 280.35 |
| -50 | 2431448 | 1944-12-23 | 278.71 |
| -49 | 2431740 | 1945-10-11 | 278.64 |
| -48 | 2432022 | 1946-07-20 | 279.79 |
| -47 | 2432293 | 1947-04-17 | 280.14 |
| -46 | 2432564 | 1948-01-13 | 279.08 |
| -45 | 2432853 | 1948-10-28 | 277.65 |
| -44 | 2433132 | 1949-08-03 | 277.44 |
| -43 | 2433408 | 1950-05-06 | 278.36 |
| -42 | 2433687 | 1951-02-09 | 277.71 |
| -41 | 2433962 | 1951-11-11 | 276.42 |
| -40 | 2434237 | 1952-08-12 | 276.35 |
| -39 | 2434517 | 1953-05-19 | 276.07 |
| -38 | 2434788 | 1954-02-14 | 275.71 |
| -37 | 2435067 | 1954-11-20 | 275.5 |
| -36 | 2435342 | 1955-08-22 | 275.36 |
| -35 | 2435618 | 1956-05-24 | 275.86 |
| -34 | 2435891 | 1957-02-21 | 277.01 |
| -33 | 2436165 | 1957-11-22 | 277.93 |
| -32 | 2436444 | 1958-08-28 | 277.92 |
| -31 | 2436723 | 1959-06-03 | 277.71 |
| -30 | 2437010 | 1960-03-16 | 278.49 |
| -29 | 2437290 | 1960-12-21 | 279.07 |
| -28 | 2437561 | 1961-09-18 | 279.71 |
| -27 | 2437836 | 1962-06-20 | 279.5 |
| -26 | 2438119 | 1963-03-30 | 278.79 |
| -25 | 2438397 | 1964-01-02 | 279.79 |
| -24 | 2438686 | 1964-10-17 | 280.08 |
| -23 | 2438960 | 1965-07-18 | 279.57 |
| -22 | 2439243 | 1966-04-27 | 279.28 |
| -21 | 2439525 | 1967-02-03 | 278.99 |
| -20 | 2439793 | 1967-10-29 | 279.49 |
| -19 | 2440076 | 1968-08-07 | 280.57 |
| -18 | 2440350 | 1969-05-08 | 280.86 |
| -17 | 2440639 | 1970-02-21 | 281.29 |
| -16 | 2440920 | 1970-11-29 | 281.65 |
| -15 | 2441211 | 1971-09-16 | 281.72 |
| -14 | 2441489 | 1972-06-20 | 281.86 |
| -13 | 2441767 | 1973-03-25 | 281 |
| -12 | 2442045 | 1973-12-28 | 280.14 |
| -11 | 2442325 | 1974-10-04 | 279.49 |
| -10 | 2442610 | 1975-07-16 | 279.49 |
| -9 | 2442883 | 1976-04-14 | 280.5 |
| -8 | 2443170 | 1977-01-26 | 280.64 |
| -7 | 2443443 | 1977-10-26 | 281.36 |
| -6 | 2443726 | 1978-08-05 | 282.51 |
| -5 | 2444013 | 1979-05-19 | 281.79 |
| -4 | 2444286 | 1980-02-16 | 282.15 |
| -3 | 2444588 | 1980-12-14 | 283.36 |
| -2 | 2444860 | 1981-09-12 | 282.78 |
| -1 | 2445138 | 1982-06-17 | 283.06 |
| 0 | 2445425 | 1983-03-31 | 282.49 |
| 1 | 2445711 | 1984-01-11 | 281.07 |
| 2 | 2445987 | 1984-10-13 | 281.21 |
| 3 | 2446275 | 1985-07-28 | 280.21 |
| 4 | 2446554 | 1986-05-03 | 279.36 |
| 5 | 2446829 | 1987-02-02 | 279.72 |
| 6 | 2447106 | 1987-11-06 | 279.15 |
| 7 | 2447380 | 1988-08-06 | 277.71 |
| 8 | 2447667 | 1989-05-20 | 277.42 |
| 9 | 2447947 | 1990-02-24 | 277.85 |
| 10 | 2448223 | 1990-11-27 | 276.99 |
| 11 | 2448494 | 1991-08-25 | 275.49 |
| 12 | 2448773 | 1992-05-30 | 274.92 |
| 13 | 2449052 | 1993-03-05 | 275.14 |
| 14 | 2449312 | 1993-11-20 | 275.72 |
| 15 | 2449592 | 1994-08-27 | 276.72 |
| 16 | 2449871 | 1995-06-02 | 277.08 |
| 17 | 2450151 | 1996-03-08 | 278.07 |
| 18 | 2450426 | 1996-12-08 | 278.79 |
| 19 | 2450715 | 1997-09-23 | 277.43 |
| 20 | 2450989 | 1998-06-24 | 276.64 |
| 21 | 2451268 | 1999-03-30 | 277.14 |
| 22 | 2451539 | 1999-12-26 | 277.06 |
| 23 | 2451808 | 2000-09-20 | 276.5 |
| 24 | 2452087 | 2001-06-26 | 276.94 |
| 25 | 2452370 | 2002-04-05 | 278.44 |
| 26 | 2452650 | 2003-01-10 | 281.15 |
| 27 | 2452925 | 2003-10-12 | 282.57 |
| 28 | 2453209 | 2004-07-22 | 281.86 |
| 29 | 2453496 | 2005-05-05 | 281.14 |
| 30 | 2453787 | 2006-02-20 | 281.56 |
| 31 | 2454064 | 2006-11-24 | 281.71 |
| 32 | 2454339 | 2007-08-26 | 280.92 |
| 33 | 2454617 | 2008-05-30 | 280.57 |
| 34 | 2454900 | 2009-03-09 | 281.22 |
| 35 | 2455178 | 2009-12-12 | 281.65 |
| 36 | 2455460 | 2010-09-20 | 281.44 |
| 37 | 2455751 | 2011-07-08 | 281.21 |
| 38 | 2456037 | 2012-04-19 | 281.71 |
| 39 | 2456309 | 2013-01-16 | 282.21 |
| 40 | 2456587 | 2013-10-21 | 281.49 |
| 41 | 2456867 | 2014-07-28 | 280.64 |
| 42 | 2457155 | 2015-05-12 | 281.64 |
| 43 | 2457434 | 2016-02-15 | 283.71 |
| 44 | 2457718 | 2016-11-25 | 284.94 |
| 45 | 2457999 | 2017-09-02 | 285.15 |
| 46 | 2458290 | 2018-06-20 | 284.79 |
| 47 | 2458578 | 2019-04-04 | 284.36 |
| 48 | 2458865 | 2020-01-16 | 284.91 |
| 49 | 2459149 | 2020-10-26 | 285.87 |
| 50 | 2459427 | 2021-07-31 | 284.24 |
| 51 | 2459706 | 2022-05-06 | 283.48 |
| 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. |