| E | O (JD) | O (dat) | Period |
| -175 | 2400720 | 1860-11-05 | 254.3 |
| -174 | 2400991 | 1861-08-03 | 256.36 |
| -173 | 2401225 | 1862-03-25 | 256.36 |
| -172 | 2401485 | 1862-12-10 | 254.97 |
| -171 | 2401741 | 1863-08-23 | 253.75 |
| -169 | 2402264 | 1865-01-27 | 254.19 |
| -168 | 2402508 | 1865-09-28 | 256 |
| -167 | 2402761 | 1866-06-08 | 255.62 |
| -166 | 2403010 | 1867-02-12 | 254.4 |
| -165 | 2403273 | 1867-11-02 | 254.86 |
| -164 | 2403533 | 1868-07-19 | 255.93 |
| -163 | 2403783 | 1869-03-26 | 256.21 |
| -162 | 2404038 | 1869-12-06 | 256.43 |
| -161 | 2404302 | 1870-08-27 | 255.36 |
| -160 | 2404550 | 1871-05-02 | 254.79 |
| -159 | 2404808 | 1872-01-15 | 255.14 |
| -158 | 2405065 | 1872-09-28 | 255.36 |
| -157 | 2405316 | 1873-06-06 | 255.86 |
| -156 | 2405567 | 1874-02-12 | 256.79 |
| -155 | 2405826 | 1874-10-29 | 255.86 |
| -154 | 2406089 | 1875-07-19 | 256.29 |
| -153 | 2406345 | 1876-03-31 | 259.14 |
| -152 | 2406608 | 1876-12-19 | 259.71 |
| -151 | 2406847 | 1877-08-15 | 259.79 |
| -150 | 2407122 | 1878-05-17 | 259.14 |
| -149 | 2407389 | 1879-02-08 | 257.64 |
| -148 | 2407640 | 1879-10-17 | 259.36 |
| -147 | 2407912 | 1880-07-15 | 259.64 |
| -146 | 2408150 | 1881-03-10 | 258.57 |
| -145 | 2408410 | 1881-11-25 | 260 |
| -144 | 2408676 | 1882-08-18 | 259.86 |
| -143 | 2408928 | 1883-04-27 | 259.21 |
| -142 | 2409203 | 1884-01-27 | 260.21 |
| -141 | 2409466 | 1884-10-16 | 260.21 |
| -140 | 2409724 | 1885-07-01 | 260.64 |
| -139 | 2409967 | 1886-03-01 | 258.43 |
| -138 | 2410236 | 1886-11-25 | 257.71 |
| -137 | 2410493 | 1887-08-09 | 258.29 |
| -136 | 2410760 | 1888-05-02 | 257.57 |
| -135 | 2410989 | 1888-12-17 | 258.14 |
| -134 | 2411288 | 1889-10-12 | 256.93 |
| -133 | 2411518 | 1890-05-30 | 255.86 |
| -132 | 2411779 | 1891-02-15 | 257.5 |
| -131 | 2412038 | 1891-11-01 | 256.14 |
| -130 | 2412288 | 1892-07-08 | 254.07 |
| -129 | 2412547 | 1893-03-24 | 254.86 |
| -128 | 2412807 | 1893-12-09 | 255.43 |
| -127 | 2413056 | 1894-08-15 | 256.29 |
| -126 | 2413307 | 1895-04-23 | 254.64 |
| -125 | 2413558 | 1895-12-30 | 253.64 |
| -124 | 2413835 | 1896-10-02 | 254.29 |
| -123 | 2414079 | 1897-06-03 | 254.57 |
| -122 | 2414321 | 1898-01-31 | 255.36 |
| -121 | 2414584 | 1898-10-21 | 255.07 |
| -120 | 2414839 | 1899-07-03 | 255.07 |
| -119 | 2415088 | 1900-03-09 | 257.57 |
| -118 | 2415352 | 1900-11-28 | 258.36 |
| -117 | 2415612 | 1901-08-15 | 257.79 |
| -116 | 2415873 | 1902-05-03 | 258.71 |
| -115 | 2416133 | 1903-01-18 | 259.29 |
| -114 | 2416389 | 1903-10-01 | 259.21 |
| -113 | 2416643 | 1904-06-11 | 259.36 |
| -112 | 2416906 | 1905-03-01 | 257.79 |
| -111 | 2417164 | 1905-11-14 | 257.07 |
| -110 | 2417429 | 1906-08-06 | 258.43 |
| -109 | 2417687 | 1907-04-21 | 258.36 |
| -108 | 2417928 | 1907-12-18 | 257.5 |
| -107 | 2418193 | 1908-09-08 | 256.93 |
| -106 | 2418457 | 1909-05-30 | 256.36 |
| -105 | 2418709 | 1910-02-06 | 257.36 |
| -104 | 2418966 | 1910-10-21 | 257.5 |
| -103 | 2419224 | 1911-07-06 | 255.79 |
| -102 | 2419481 | 1912-03-19 | 255.36 |
| -101 | 2419737 | 1912-11-30 | 255.79 |
| -100 | 2419989 | 1913-08-09 | 255.5 |
| -99 | 2420242 | 1914-04-19 | 254.29 |
| -98 | 2420499 | 1915-01-01 | 253.21 |
| -97 | 2420757 | 1915-09-16 | 253.79 |
| -96 | 2421010 | 1916-05-26 | 253.5 |
| -95 | 2421255 | 1917-01-26 | 253.21 |
| -94 | 2421508 | 1917-10-06 | 254.14 |
| -93 | 2421771 | 1918-06-26 | 253.71 |
| -92 | 2422009 | 1919-02-19 | 254.79 |
| -91 | 2422277 | 1919-11-14 | 256.36 |
| -90 | 2422537 | 1920-07-31 | 256.21 |
| -89 | 2422782 | 1921-04-02 | 257.14 |
| -88 | 2423050 | 1921-12-26 | 257.79 |
| -87 | 2423302 | 1922-09-04 | 257.07 |
| -86 | 2423564 | 1923-05-24 | 257.71 |
| -85 | 2423816 | 1924-01-31 | 257.93 |
| -84 | 2424079 | 1924-10-20 | 257.79 |
| -83 | 2424334 | 1925-07-02 | 258.21 |
| -82 | 2424593 | 1926-03-18 | 257.21 |
| -81 | 2424850 | 1926-11-30 | 256.21 |
| -80 | 2425111 | 1927-08-18 | 256.43 |
| -79 | 2425370 | 1928-05-03 | 255.5 |
| -78 | 2425611 | 1928-12-30 | 254.93 |
| -77 | 2425871 | 1929-09-16 | 255.29 |
| -76 | 2426132 | 1930-06-04 | 254.36 |
| -75 | 2426372 | 1931-01-30 | 255.07 |
| -74 | 2426640 | 1931-10-25 | 256.64 |
| -73 | 2426895 | 1932-07-06 | 257.21 |
| -72 | 2427147 | 1933-03-15 | 258.29 |
| -71 | 2427405 | 1933-11-28 | 258.36 |
| -70 | 2427670 | 1934-08-20 | 258.29 |
| -69 | 2427934 | 1935-05-11 | 259.21 |
| -68 | 2428186 | 1936-01-18 | 259.86 |
| -67 | 2428443 | 1936-10-01 | 259.5 |
| -66 | 2428708 | 1937-06-23 | 258.14 |
| -65 | 2428963 | 1938-03-05 | 257.86 |
| -64 | 2429227 | 1938-11-24 | 258 |
| -63 | 2429481 | 1939-08-05 | 257.36 |
| -62 | 2429737 | 1940-04-17 | 257.5 |
| -61 | 2429993 | 1940-12-29 | 258.07 |
| -60 | 2430248 | 1941-09-10 | 257.79 |
| -59 | 2430506 | 1942-05-26 | 258 |
| -58 | 2430770 | 1943-02-14 | 259.29 |
| -57 | 2431033 | 1943-11-04 | 259.71 |
| -56 | 2431284 | 1944-07-12 | 259.29 |
| -55 | 2431546 | 1945-03-31 | 259.79 |
| -54 | 2431814 | 1945-12-24 | 258.79 |
| -53 | 2432063 | 1946-08-30 | 257.36 |
| -52 | 2432321 | 1947-05-15 | 257.14 |
| -51 | 2432592 | 1948-02-10 | 256 |
| -50 | 2432834 | 1948-10-09 | 255.93 |
| -49 | 2433086 | 1949-06-18 | 256 |
| -48 | 2433344 | 1950-03-03 | 254.5 |
| -47 | 2433600 | 1950-11-14 | 254.93 |
| -46 | 2433860 | 1951-08-01 | 257 |
| -45 | 2434108 | 1952-04-05 | 257.14 |
| -44 | 2434368 | 1952-12-21 | 256.71 |
| -43 | 2434627 | 1953-09-06 | 257.14 |
| -42 | 2434891 | 1954-05-28 | 257 |
| -41 | 2435139 | 1955-01-31 | 257 |
| -40 | 2435399 | 1955-10-18 | 257.36 |
| -39 | 2435661 | 1956-07-06 | 257 |
| -38 | 2435905 | 1957-03-07 | 256.86 |
| -37 | 2436169 | 1957-11-26 | 257 |
| -36 | 2436429 | 1958-08-13 | 255.86 |
| -35 | 2436687 | 1959-04-28 | 256.07 |
| -34 | 2436939 | 1960-01-05 | 256.43 |
| -33 | 2437197 | 1960-09-19 | 254.79 |
| -32 | 2437445 | 1961-05-25 | 253.5 |
| -31 | 2437706 | 1962-02-10 | 253.43 |
| -30 | 2437958 | 1962-10-20 | 253.5 |
| -29 | 2438207 | 1963-06-26 | 253 |
| -28 | 2438458 | 1964-03-03 | 252.07 |
| -27 | 2438716 | 1964-11-16 | 251.79 |
| -26 | 2438969 | 1965-07-27 | 252.64 |
| -25 | 2439215 | 1966-03-30 | 252.64 |
| -24 | 2439465 | 1966-12-05 | 252.71 |
| -23 | 2439724 | 1967-08-21 | 253.29 |
| -22 | 2439978 | 1968-05-01 | 254.36 |
| -21 | 2440224 | 1969-01-02 | 255.14 |
| -20 | 2440488 | 1969-09-23 | 255.29 |
| -19 | 2440743 | 1970-06-05 | 255.71 |
| -18 | 2441002 | 1971-02-19 | 255.36 |
| -17 | 2441250 | 1971-10-25 | 254.86 |
| -16 | 2441513 | 1972-07-14 | 255 |
| -15 | 2441769 | 1973-03-27 | 254 |
| -14 | 2442008 | 1973-11-21 | 254.14 |
| -13 | 2442272 | 1974-08-12 | 255.29 |
| -12 | 2442529 | 1975-04-26 | 254.5 |
| -11 | 2442772 | 1975-12-25 | 255.5 |
| -10 | 2443038 | 1976-09-16 | 257.57 |
| -9 | 2443299 | 1977-06-04 | 258.5 |
| -8 | 2443546 | 1978-02-06 | 259.93 |
| -7 | 2443808 | 1978-10-26 | 260.43 |
| -6 | 2444078 | 1979-07-23 | 259.64 |
| -5 | 2444342 | 1980-04-12 | 259.5 |
| -4 | 2444598 | 1980-12-24 | 259.29 |
| -3 | 2444858 | 1981-09-10 | 257.86 |
| -2 | 2445114 | 1982-05-24 | 256.36 |
| -1 | 2445364 | 1983-01-29 | 256 |
| 0 | 2445620 | 1983-10-12 | 255.5 |
| 1 | 2445876 | 1984-06-24 | 254.5 |
| 2 | 2446133 | 1985-03-08 | 254.29 |
| 3 | 2446391 | 1985-11-21 | 255.07 |
| 4 | 2446642 | 1986-07-30 | 255.79 |
| 5 | 2446893 | 1987-04-07 | 255.07 |
| 6 | 2447145 | 1987-12-15 | 254.93 |
| 7 | 2447410 | 1988-09-05 | 256 |
| 8 | 2447667 | 1989-05-20 | 256.79 |
| 9 | 2447913 | 1990-01-21 | 257.71 |
| 10 | 2448180 | 1990-10-15 | 258 |
| 11 | 2448437 | 1991-06-29 | 257.5 |
| 12 | 2448693 | 1992-03-11 | 258.07 |
| 13 | 2448953 | 1992-11-26 | 258.29 |
| 14 | 2449214 | 1993-08-14 | 257.5 |
| 15 | 2449468 | 1994-04-25 | 257.71 |
| 16 | 2449725 | 1995-01-07 | 257.93 |
| 17 | 2449984 | 1995-09-23 | 257.07 |
| 18 | 2450238 | 1996-06-03 | 256.71 |
| 19 | 2450500 | 1997-02-20 | 257.14 |
| 20 | 2450757 | 1997-11-04 | 256.64 |
| 21 | 2451009 | 1998-07-14 | 256 |
| 22 | 2451267 | 1999-03-29 | 255.86 |
| 23 | 2451526 | 1999-12-13 | 255 |
| 24 | 2451776 | 2000-08-19 | 255.21 |
| 25 | 2452030 | 2001-04-30 | 255.86 |
| 26 | 2452290 | 2002-01-15 | 255.29 |
| 27 | 2452537 | 2002-09-19 | 255.29 |
| 28 | 2452802 | 2003-06-11 | 255.43 |
| 29 | 2453056 | 2004-02-20 | 255 |
| 30 | 2453311 | 2004-11-01 | 255.64 |
| 31 | 2453565 | 2005-07-13 | 255.29 |
| 32 | 2453817 | 2006-03-22 | 254.36 |
| 33 | 2454073 | 2006-12-03 | 255.07 |
| 34 | 2454333 | 2007-08-20 | 255.36 |
| 35 | 2454580 | 2008-04-23 | 255.21 |
| 36 | 2454839 | 2009-01-07 | 255.43 |
| 37 | 2455099 | 2009-09-24 | 255.14 |
| 38 | 2455352 | 2010-06-04 | 255.43 |
| 39 | 2455603 | 2011-02-10 | 256.21 |
| 40 | 2455863 | 2011-10-28 | 255.86 |
| 41 | 2456115 | 2012-07-06 | 254.93 |
| 42 | 2456374 | 2013-03-22 | 255 |
| 43 | 2456632 | 2013-12-05 | 255.86 |
| 44 | 2456888 | 2014-08-18 | 255.86 |
| 45 | 2457132 | 2015-04-19 | 255.93 |
| 46 | 2457393 | 2016-01-05 | 256.29 |
| 47 | 2457655 | 2016-09-23 | 256.79 |
| 48 | 2457905 | 2017-05-31 | 258.14 |
| 49 | 2458167 | 2018-02-17 | 257.64 |
| 50 | 2458427 | 2018-11-04 | 257.07 |
| 51 | 2458688 | 2019-07-23 | 258.21 |
| 52 | 2458946 | 2020-04-06 | 258.32 |
| 53 | 2459186 | 2020-12-02 | 257.71 |
| 54 | 2459461 | 2021-09-03 | 256.42 |
| 55 | 2459714 | 2022-05-14 | 255.5 |
| 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. |