| E | O (JD) | O (dat) | Period |
| -231 | 2400461 | 1860-02-20 | 177.82 |
| -228 | 2400989 | 1861-08-01 | 177.71 |
| -226 | 2401349 | 1862-07-27 | 177.35 |
| -222 | 2402060 | 1864-07-07 | 176.95 |
| -220 | 2402415 | 1865-06-27 | 177.15 |
| -218 | 2402769 | 1866-06-16 | 177.09 |
| -216 | 2403120 | 1867-06-02 | 176.57 |
| -214 | 2403468 | 1868-05-15 | 176.19 |
| -212 | 2403828 | 1869-05-10 | 176.12 |
| -210 | 2404177 | 1870-04-24 | 176.4 |
| -208 | 2404529 | 1871-04-11 | 177.24 |
| -207 | 2404703 | 1871-10-02 | 177.5 |
| -206 | 2404884 | 1872-03-31 | 177 |
| -203 | 2405415 | 1873-09-13 | 177.33 |
| -202 | 2405604 | 1874-03-21 | 177.41 |
| -200 | 2405952 | 1875-03-04 | 176.88 |
| -199 | 2406124 | 1875-08-23 | 176.8 |
| -198 | 2406306 | 1876-02-21 | 176.36 |
| -195 | 2406829 | 1877-07-28 | 175.81 |
| -193 | 2407180 | 1878-07-14 | 176.26 |
| -191 | 2407539 | 1879-07-08 | 176.28 |
| -189 | 2407889 | 1880-06-22 | 175.8 |
| -187 | 2408238 | 1881-06-06 | 176.34 |
| -185 | 2408597 | 1882-05-31 | 176.72 |
| -183 | 2408945 | 1883-05-14 | 176.91 |
| -170 | 2411222 | 1889-08-07 | 176.96 |
| -166 | 2411957 | 1891-08-12 | 176.65 |
| -164 | 2412305 | 1892-07-25 | 177.07 |
| -162 | 2412676 | 1893-07-31 | 178.05 |
| -160 | 2413007 | 1894-06-27 | 178.4 |
| -158 | 2413367 | 1895-06-22 | 178.14 |
| -156 | 2413737 | 1896-06-26 | 177.64 |
| -154 | 2414086 | 1897-06-10 | 178.07 |
| -152 | 2414445 | 1898-06-04 | 178.94 |
| -150 | 2414805 | 1899-05-30 | 178.22 |
| -148 | 2415150 | 1900-05-10 | 178.23 |
| -144 | 2415875 | 1902-05-05 | 178.49 |
| -142 | 2416225 | 1903-04-20 | 177.19 |
| -140 | 2416582 | 1904-04-11 | 176.76 |
| -139 | 2416766 | 1904-10-12 | 177 |
| -138 | 2416941 | 1905-04-05 | 175.56 |
| -137 | 2417093 | 1905-09-04 | 174.77 |
| -136 | 2417281 | 1906-03-11 | 174.62 |
| -135 | 2417461 | 1906-09-07 | 174.7 |
| -133 | 2417799 | 1907-08-11 | 175.95 |
| -132 | 2417979 | 1908-02-07 | 176.23 |
| -131 | 2418163 | 1908-08-09 | 174.89 |
| -129 | 2418514 | 1909-07-26 | 176.9 |
| -128 | 2418687 | 1910-01-15 | 178.72 |
| -127 | 2418859 | 1910-07-06 | 177.82 |
| -125 | 2419206 | 1911-06-18 | 177.67 |
| -123 | 2419592 | 1912-07-08 | 179.09 |
| -121 | 2419939 | 1913-06-20 | 180.09 |
| -120 | 2420115 | 1913-12-13 | 180.8 |
| -119 | 2420293 | 1914-06-09 | 180.21 |
| -117 | 2420669 | 1915-06-20 | 178.67 |
| -115 | 2421019 | 1916-06-04 | 178.64 |
| -113 | 2421385 | 1917-06-05 | 179.23 |
| -111 | 2421738 | 1918-05-24 | 178.56 |
| -109 | 2422081 | 1919-05-02 | 177.22 |
| -107 | 2422439 | 1920-04-24 | 176.67 |
| -106 | 2422629 | 1920-10-31 | 176.68 |
| -105 | 2422797 | 1921-04-17 | 177.47 |
| -104 | 2422967 | 1921-10-04 | 177.33 |
| -103 | 2423147 | 1922-04-02 | 175.65 |
| -102 | 2423333 | 1922-10-05 | 175.51 |
| -101 | 2423503 | 1923-03-24 | 177.43 |
| -100 | 2423677 | 1923-09-14 | 178.42 |
| -99 | 2423850 | 1924-03-05 | 177.78 |
| -98 | 2424033 | 1924-09-04 | 176.72 |
| -97 | 2424215 | 1925-03-05 | 176.15 |
| -96 | 2424397 | 1925-09-03 | 176.07 |
| -95 | 2424572 | 1926-02-25 | 176.21 |
| -94 | 2424738 | 1926-08-10 | 176.5 |
| -93 | 2424908 | 1927-01-27 | 176.29 |
| -92 | 2425084 | 1927-07-22 | 175.15 |
| -91 | 2425266 | 1928-01-20 | 175.07 |
| -90 | 2425453 | 1928-07-25 | 176.35 |
| -89 | 2425627 | 1929-01-15 | 177.8 |
| -88 | 2425794 | 1929-07-01 | 177.38 |
| -87 | 2425967 | 1929-12-21 | 175.63 |
| -86 | 2426148 | 1930-06-20 | 175.31 |
| -84 | 2426511 | 1931-06-18 | 176.68 |
| -83 | 2426677 | 1931-12-01 | 178.25 |
| -82 | 2426852 | 1932-05-24 | 178.82 |
| -81 | 2427033 | 1932-11-21 | 177.93 |
| -80 | 2427215 | 1933-05-22 | 177.92 |
| -79 | 2427398 | 1933-11-21 | 179.14 |
| -78 | 2427578 | 1934-05-20 | 178.93 |
| -77 | 2427750 | 1934-11-08 | 178.58 |
| -76 | 2427929 | 1935-05-06 | 178.28 |
| -75 | 2428108 | 1935-11-01 | 178.56 |
| -74 | 2428282 | 1936-04-23 | 179.5 |
| -73 | 2428466 | 1936-10-24 | 179.29 |
| -72 | 2428643 | 1937-04-19 | 178.36 |
| -71 | 2428833 | 1937-10-26 | 178.5 |
| -70 | 2429008 | 1938-04-19 | 179.21 |
| -69 | 2429181 | 1938-10-09 | 179.21 |
| -68 | 2429353 | 1939-03-30 | 177.72 |
| -67 | 2429536 | 1939-09-29 | 177.08 |
| -66 | 2429721 | 1940-04-01 | 177.78 |
| -65 | 2429897 | 1940-09-24 | 178.42 |
| -64 | 2430067 | 1941-03-13 | 178.21 |
| -63 | 2430253 | 1941-09-15 | 176.79 |
| -62 | 2430425 | 1942-03-06 | 176.58 |
| -61 | 2430607 | 1942-09-04 | 177.43 |
| -60 | 2430777 | 1943-02-21 | 178.42 |
| -59 | 2430955 | 1943-08-18 | 178.78 |
| -58 | 2431135 | 1944-02-14 | 177.93 |
| -57 | 2431313 | 1944-08-10 | 178.51 |
| -56 | 2431505 | 1945-02-18 | 180.21 |
| -55 | 2431676 | 1945-08-08 | 180.21 |
| -54 | 2431847 | 1946-01-26 | 179.57 |
| -53 | 2432036 | 1946-08-03 | 178.51 |
| -52 | 2432219 | 1947-02-02 | 178.51 |
| -51 | 2432394 | 1947-07-27 | 179.57 |
| -50 | 2432568 | 1948-01-17 | 179.28 |
| -49 | 2432749 | 1948-07-16 | 178.36 |
| -48 | 2432931 | 1949-01-14 | 177.86 |
| -47 | 2433106 | 1949-07-08 | 178.08 |
| -46 | 2433287 | 1950-01-05 | 178.21 |
| -45 | 2433465 | 1950-07-02 | 177.13 |
| -44 | 2433638 | 1950-12-22 | 175.93 |
| -43 | 2433817 | 1951-06-19 | 175.43 |
| -42 | 2433995 | 1951-12-14 | 175.58 |
| -41 | 2434165 | 1952-06-01 | 176 |
| -40 | 2434335 | 1952-11-18 | 176.13 |
| -39 | 2434514 | 1953-05-16 | 176.21 |
| -38 | 2434696 | 1953-11-14 | 176.79 |
| -37 | 2434871 | 1954-05-08 | 177.22 |
| -36 | 2435050 | 1954-11-03 | 177.43 |
| -35 | 2435229 | 1955-05-01 | 177.56 |
| -34 | 2435406 | 1955-10-25 | 177.21 |
| -33 | 2435575 | 1956-04-11 | 177.01 |
| -32 | 2435758 | 1956-10-11 | 177.29 |
| -31 | 2435938 | 1957-04-09 | 177.86 |
| -30 | 2436110 | 1957-09-28 | 178.49 |
| -29 | 2436289 | 1958-03-26 | 178.64 |
| -28 | 2436472 | 1958-09-25 | 178.29 |
| -27 | 2436653 | 1959-03-25 | 178.72 |
| -26 | 2436827 | 1959-09-15 | 179.28 |
| -25 | 2437007 | 1960-03-13 | 179.49 |
| -24 | 2437185 | 1960-09-07 | 179.5 |
| -23 | 2437365 | 1961-03-06 | 179.43 |
| -22 | 2437544 | 1961-09-01 | 179.29 |
| -21 | 2437730 | 1962-03-06 | 179.28 |
| -20 | 2437908 | 1962-08-31 | 179.35 |
| -19 | 2438084 | 1963-02-23 | 179.07 |
| -18 | 2438260 | 1963-08-18 | 178.58 |
| -17 | 2438442 | 1964-02-16 | 178.29 |
| -16 | 2438619 | 1964-08-11 | 178.86 |
| -15 | 2438797 | 1965-02-05 | 179.13 |
| -14 | 2438977 | 1965-08-04 | 178.64 |
| -13 | 2439157 | 1966-01-31 | 178.08 |
| -12 | 2439339 | 1966-08-01 | 178.22 |
| -11 | 2439513 | 1967-01-22 | 178.36 |
| -10 | 2439690 | 1967-07-18 | 178.35 |
| -9 | 2439864 | 1968-01-08 | 178.07 |
| -8 | 2440047 | 1968-07-09 | 178.01 |
| -7 | 2440224 | 1969-01-02 | 178.43 |
| -6 | 2440407 | 1969-07-04 | 178.07 |
| -5 | 2440582 | 1969-12-26 | 177.28 |
| -4 | 2440762 | 1970-06-24 | 176.86 |
| -3 | 2440939 | 1970-12-18 | 176.29 |
| -2 | 2441108 | 1971-06-05 | 175.93 |
| -1 | 2441285 | 1971-11-29 | 175.86 |
| 0 | 2441462 | 1972-05-24 | 175.13 |
| 1 | 2441637 | 1972-11-15 | 175.93 |
| 2 | 2441815 | 1973-05-12 | 176.22 |
| 3 | 2441991 | 1973-11-04 | 176.43 |
| 4 | 2442162 | 1974-04-24 | 176.78 |
| 5 | 2442348 | 1974-10-27 | 176.35 |
| 6 | 2442512 | 1975-04-09 | 176 |
| 7 | 2442705 | 1975-10-19 | 176.58 |
| 8 | 2442869 | 1976-03-31 | 177.43 |
| 9 | 2443052 | 1976-09-30 | 177.57 |
| 10 | 2443218 | 1977-03-15 | 177.63 |
| 11 | 2443407 | 1977-09-20 | 177.14 |
| 12 | 2443587 | 1978-03-19 | 176.43 |
| 13 | 2443759 | 1978-09-07 | 176.79 |
| 14 | 2443945 | 1979-03-12 | 176.78 |
| 15 | 2444109 | 1979-08-23 | 175.85 |
| 16 | 2444282 | 1980-02-12 | 176.14 |
| 17 | 2444463 | 1980-08-11 | 175.51 |
| 18 | 2444637 | 1981-02-01 | 175.86 |
| 19 | 2444819 | 1981-08-02 | 177.86 |
| 20 | 2444993 | 1982-01-23 | 178.56 |
| 21 | 2445168 | 1982-07-17 | 178.14 |
| 22 | 2445348 | 1983-01-13 | 177.43 |
| 23 | 2445533 | 1983-07-17 | 177.01 |
| 24 | 2445712 | 1984-01-12 | 178.5 |
| 25 | 2445882 | 1984-06-30 | 179.13 |
| 26 | 2446058 | 1984-12-23 | 178 |
| 27 | 2446232 | 1985-06-15 | 177.43 |
| 28 | 2446428 | 1985-12-28 | 177.43 |
| 29 | 2446596 | 1986-06-14 | 177.07 |
| 30 | 2446777 | 1986-12-12 | 177.28 |
| 31 | 2446952 | 1987-06-05 | 176.64 |
| 32 | 2447126 | 1987-11-26 | 176.08 |
| 33 | 2447293 | 1988-05-11 | 176.58 |
| 34 | 2447479 | 1988-11-13 | 175.5 |
| 35 | 2447654 | 1989-05-07 | 175.06 |
| 36 | 2447835 | 1989-11-04 | 176.5 |
| 37 | 2448010 | 1990-04-28 | 176.58 |
| 38 | 2448176 | 1990-10-11 | 175.51 |
| 39 | 2448353 | 1991-04-06 | 175.78 |
| 40 | 2448537 | 1991-10-07 | 175.63 |
| 41 | 2448707 | 1992-03-25 | 175.86 |
| 42 | 2448883 | 1992-09-17 | 176.15 |
| 43 | 2449067 | 1993-03-20 | 175.29 |
| 44 | 2449237 | 1993-09-06 | 175.43 |
| 45 | 2449411 | 1994-02-27 | 176.21 |
| 46 | 2449584 | 1994-08-19 | 176.43 |
| 47 | 2449760 | 1995-02-11 | 177.36 |
| 48 | 2449940 | 1995-08-10 | 178.08 |
| 49 | 2450117 | 1996-02-03 | 178.21 |
| 50 | 2450303 | 1996-08-07 | 179.56 |
| 51 | 2450484 | 1997-02-04 | 180.36 |
| 52 | 2450657 | 1997-07-27 | 179.79 |
| 53 | 2450833 | 1998-01-19 | 179.15 |
| 54 | 2451025 | 1998-07-30 | 179.14 |
| 55 | 2451200 | 1999-01-21 | 180.13 |
| 56 | 2451374 | 1999-07-14 | 180.86 |
| 57 | 2451554 | 2000-01-10 | 180.29 |
| 58 | 2451741 | 2000-07-15 | 180.08 |
| 59 | 2451922 | 2001-01-12 | 181.07 |
| 60 | 2452100 | 2001-07-09 | 180.92 |
| 61 | 2452282 | 2002-01-07 | 180.5 |
| 62 | 2452464 | 2002-07-08 | 180.51 |
| 63 | 2452645 | 2003-01-05 | 179.79 |
| 64 | 2452816 | 2003-06-25 | 179.64 |
| 65 | 2453006 | 2004-01-01 | 179.85 |
| 66 | 2453184 | 2004-06-27 | 178.71 |
| 67 | 2453355 | 2004-12-15 | 178.79 |
| 68 | 2453542 | 2005-06-20 | 178.36 |
| 69 | 2453722 | 2005-12-17 | 177.07 |
| 70 | 2453889 | 2006-06-02 | 177.78 |
| 71 | 2454075 | 2006-12-05 | 177.36 |
| 72 | 2454244 | 2007-05-23 | 175.79 |
| 73 | 2454425 | 2007-11-20 | 176.86 |
| 74 | 2454603 | 2008-05-16 | 177.57 |
| 75 | 2454777 | 2008-11-06 | 176.63 |
| 76 | 2454948 | 2009-04-26 | 176.78 |
| 77 | 2455139 | 2009-11-03 | 176.43 |
| 78 | 2455311 | 2010-04-24 | 175.51 |
| 79 | 2455481 | 2010-10-11 | 175.78 |
| 80 | 2455663 | 2011-04-11 | 176.13 |
| 81 | 2455835 | 2011-09-30 | 176.36 |
| 82 | 2456002 | 2012-03-15 | 177.58 |
| 83 | 2456184 | 2012-09-13 | 177.79 |
| 84 | 2456369 | 2013-03-17 | 177.21 |
| 85 | 2456550 | 2013-09-14 | 178.42 |
| 86 | 2456728 | 2014-03-11 | 180.07 |
| 87 | 2456905 | 2014-09-04 | 179.65 |
| 88 | 2457074 | 2015-02-20 | 178.51 |
| 89 | 2457261 | 2015-08-26 | 178.28 |
| 90 | 2457446 | 2016-02-27 | 178.42 |
| 91 | 2457622 | 2016-08-21 | 179.14 |
| 92 | 2457796 | 2017-02-11 | 179.22 |
| 93 | 2457978 | 2017-08-12 | 178.15 |
| 94 | 2458153 | 2018-02-03 | 177.71 |
| 95 | 2458334 | 2018-08-03 | 178.42 |
| 96 | 2458510 | 2019-01-26 | 178.36 |
| 97 | 2458691 | 2019-07-26 | 178.51 |
| 98 | 2458865 | 2020-01-16 | 179.15 |
| 99 | 2459051 | 2020-07-20 | 178.5 |
| 100 | 2459220 | 2021-01-05 | 177.99 |
| 101 | 2459410 | 2021-07-14 | 178.3 |
| 102 | 2459585 | 2022-01-05 | 178.18 |
| 103 | 2459758 | 2022-06-27 | 178.84 |
| 104 | 2459935 | 2022-12-21 | 180.8 |
| 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. |