| E | O (JD) | O (dat) | Period |
| -170 | 2394336 | 1843-05-15 | 300.81 |
| -158 | 2397940 | 1853-03-27 | 300.65 |
| -157 | 2398243 | 1854-01-24 | 300.78 |
| -156 | 2398540 | 1854-11-17 | 300.81 |
| -155 | 2398844 | 1855-09-17 | 300.56 |
| -154 | 2399143 | 1856-07-12 | 300 |
| -153 | 2399447 | 1857-05-12 | 300.29 |
| -152 | 2399749 | 1858-03-10 | 300.29 |
| -151 | 2400041 | 1858-12-27 | 300.5 |
| -150 | 2400342 | 1859-10-24 | 302.21 |
| -149 | 2400645 | 1860-08-22 | 303.36 |
| -148 | 2400943 | 1861-06-16 | 303.87 |
| -147 | 2401251 | 1862-04-20 | 304.94 |
| -146 | 2401570 | 1863-03-05 | 305.31 |
| -145 | 2401873 | 1864-01-02 | 305.68 |
| -143 | 2402475 | 1865-08-26 | 306.44 |
| -142 | 2402787 | 1866-07-04 | 305.26 |
| -141 | 2403085 | 1867-04-28 | 304.13 |
| -140 | 2403394 | 1868-03-02 | 304.99 |
| -139 | 2403703 | 1869-01-05 | 305.28 |
| -138 | 2404002 | 1869-10-31 | 304.58 |
| -137 | 2404307 | 1870-09-01 | 303.65 |
| -136 | 2404616 | 1871-07-07 | 302.64 |
| -135 | 2404920 | 1872-05-06 | 302.99 |
| -134 | 2405216 | 1873-02-26 | 302.86 |
| -133 | 2405514 | 1873-12-21 | 302.29 |
| -132 | 2405820 | 1874-10-23 | 300.93 |
| -131 | 2406127 | 1875-08-26 | 298.86 |
| -130 | 2406422 | 1876-06-16 | 299.85 |
| -129 | 2406733 | 1877-04-23 | 300 |
| -128 | 2407016 | 1878-01-31 | 299.01 |
| -127 | 2407304 | 1878-11-15 | 300.36 |
| -126 | 2407624 | 1879-10-01 | 299.07 |
| -125 | 2407910 | 1880-07-13 | 299.85 |
| -124 | 2408223 | 1881-05-22 | 302.86 |
| -123 | 2408531 | 1882-03-26 | 301.43 |
| -122 | 2408811 | 1882-12-31 | 301.22 |
| -121 | 2409136 | 1883-11-21 | 302 |
| -120 | 2409424 | 1884-09-04 | 301.13 |
| -119 | 2409724 | 1885-07-01 | 301.93 |
| -118 | 2410027 | 1886-04-30 | 301.29 |
| -117 | 2410334 | 1887-03-03 | 301.15 |
| -116 | 2410636 | 1887-12-30 | 303.43 |
| -115 | 2410933 | 1888-10-22 | 303.63 |
| -114 | 2411232 | 1889-08-17 | 302.28 |
| -113 | 2411544 | 1890-06-25 | 300.93 |
| -112 | 2411852 | 1891-04-29 | 301.29 |
| -111 | 2412150 | 1892-02-21 | 301.64 |
| -110 | 2412443 | 1892-12-10 | 299.78 |
| -109 | 2412740 | 1893-10-03 | 298.64 |
| -108 | 2413047 | 1894-08-06 | 299.22 |
| -107 | 2413341 | 1895-05-27 | 300.08 |
| -106 | 2413632 | 1896-03-13 | 302.5 |
| -105 | 2413945 | 1897-01-20 | 302.42 |
| -104 | 2414246 | 1897-11-17 | 301.36 |
| -103 | 2414548 | 1898-09-15 | 302.93 |
| -102 | 2414870 | 1899-08-03 | 302.79 |
| -101 | 2415151 | 1900-05-11 | 302.36 |
| -100 | 2415456 | 1901-03-12 | 302.28 |
| -99 | 2415758 | 1902-01-08 | 300.14 |
| -98 | 2416058 | 1902-11-04 | 300.51 |
| -97 | 2416366 | 1903-09-08 | 302.01 |
| -96 | 2416660 | 1904-06-28 | 301.86 |
| -95 | 2416960 | 1905-04-24 | 302.28 |
| -94 | 2417268 | 1906-02-26 | 301.07 |
| -93 | 2417567 | 1906-12-22 | 299.93 |
| -92 | 2417873 | 1907-10-24 | 300.65 |
| -91 | 2418175 | 1908-08-21 | 299.93 |
| -90 | 2418464 | 1909-06-06 | 298.99 |
| -89 | 2418761 | 1910-03-30 | 298.86 |
| -88 | 2419068 | 1911-01-31 | 298.22 |
| -87 | 2419359 | 1911-11-18 | 298.08 |
| -86 | 2419662 | 1912-09-16 | 298 |
| -85 | 2419962 | 1913-07-13 | 297.63 |
| -84 | 2420261 | 1914-05-08 | 298.14 |
| -83 | 2420551 | 1915-02-22 | 298.51 |
| -82 | 2420846 | 1915-12-14 | 298.22 |
| -81 | 2421150 | 1916-10-13 | 298.78 |
| -80 | 2421451 | 1917-08-10 | 300.06 |
| -79 | 2421749 | 1918-06-04 | 300.71 |
| -78 | 2422050 | 1919-04-01 | 301.01 |
| -77 | 2422356 | 1920-02-01 | 301.58 |
| -76 | 2422657 | 1920-11-28 | 302 |
| -75 | 2422950 | 1921-09-17 | 301.63 |
| -74 | 2423260 | 1922-07-24 | 300.43 |
| -73 | 2423563 | 1923-05-23 | 300.36 |
| -72 | 2423865 | 1924-03-20 | 300.86 |
| -71 | 2424157 | 1925-01-06 | 299.78 |
| -70 | 2424455 | 1925-10-31 | 299.13 |
| -69 | 2424763 | 1926-09-04 | 299.36 |
| -68 | 2425056 | 1927-06-24 | 299.36 |
| -67 | 2425351 | 1928-04-14 | 299.86 |
| -66 | 2425660 | 1929-02-17 | 299.36 |
| -65 | 2425959 | 1929-12-13 | 298.49 |
| -64 | 2426254 | 1930-10-04 | 299.28 |
| -63 | 2426556 | 1931-08-02 | 299.51 |
| -62 | 2426853 | 1932-05-25 | 299.29 |
| -61 | 2427145 | 1933-03-13 | 300.57 |
| -60 | 2427452 | 1934-01-14 | 301.56 |
| -59 | 2427752 | 1934-11-10 | 302.5 |
| -58 | 2428057 | 1935-09-11 | 303.79 |
| -57 | 2428364 | 1936-07-14 | 304.43 |
| -56 | 2428668 | 1937-05-14 | 304.28 |
| -55 | 2428976 | 1938-03-18 | 303.49 |
| -54 | 2429275 | 1939-01-11 | 303 |
| -53 | 2429584 | 1939-11-16 | 303.15 |
| -52 | 2429880 | 1940-09-07 | 303.08 |
| -51 | 2430178 | 1941-07-02 | 303.36 |
| -50 | 2430485 | 1942-05-05 | 303.13 |
| -49 | 2430791 | 1943-03-07 | 303.28 |
| -48 | 2431096 | 1944-01-06 | 305.08 |
| -47 | 2431402 | 1944-11-07 | 305.43 |
| -46 | 2431701 | 1945-09-02 | 304.86 |
| -45 | 2432009 | 1946-07-07 | 304.56 |
| -44 | 2432320 | 1947-05-14 | 303.71 |
| -43 | 2432619 | 1948-03-08 | 303.72 |
| -42 | 2432925 | 1949-01-08 | 303.79 |
| -41 | 2433226 | 1949-11-05 | 302.43 |
| -40 | 2433524 | 1950-08-30 | 302.21 |
| -39 | 2433831 | 1951-07-03 | 302.57 |
| -38 | 2434132 | 1952-04-29 | 302.93 |
| -37 | 2434431 | 1953-02-22 | 303.15 |
| -36 | 2434739 | 1953-12-27 | 302.64 |
| -35 | 2435041 | 1954-10-25 | 302.71 |
| -34 | 2435351 | 1955-08-31 | 303.14 |
| -33 | 2435643 | 1956-06-18 | 303.22 |
| -32 | 2435949 | 1957-04-20 | 302.93 |
| -31 | 2436252 | 1958-02-17 | 301.86 |
| -30 | 2436555 | 1958-12-17 | 302.63 |
| -29 | 2436860 | 1959-10-18 | 304.14 |
| -28 | 2437161 | 1960-08-14 | 303.51 |
| -27 | 2437457 | 1961-06-06 | 303.08 |
| -26 | 2437774 | 1962-04-19 | 303.07 |
| -25 | 2438076 | 1963-02-15 | 302.85 |
| -24 | 2438374 | 1963-12-10 | 302.64 |
| -23 | 2438676 | 1964-10-07 | 301.65 |
| -22 | 2438982 | 1965-08-09 | 300.15 |
| -21 | 2439279 | 1966-06-02 | 300.43 |
| -20 | 2439576 | 1967-03-26 | 300.99 |
| -19 | 2439878 | 1968-01-22 | 301.07 |
| -18 | 2440174 | 1968-11-13 | 301.29 |
| -17 | 2440482 | 1969-09-17 | 301.36 |
| -16 | 2440782 | 1970-07-14 | 301.57 |
| -15 | 2441091 | 1971-05-19 | 301.71 |
| -14 | 2441388 | 1972-03-11 | 301.36 |
| -13 | 2441686 | 1973-01-03 | 301.08 |
| -12 | 2441990 | 1973-11-03 | 300.79 |
| -11 | 2442286 | 1974-08-26 | 300.07 |
| -10 | 2442589 | 1975-06-25 | 300.21 |
| -9 | 2442890 | 1976-04-21 | 300.71 |
| -8 | 2443194 | 1977-02-19 | 300.86 |
| -7 | 2443486 | 1977-12-08 | 300.58 |
| -6 | 2443791 | 1978-10-09 | 300 |
| -5 | 2444095 | 1979-08-09 | 299.92 |
| -4 | 2444393 | 1980-06-02 | 299.86 |
| -3 | 2444690 | 1981-03-26 | 299.29 |
| -2 | 2444989 | 1982-01-19 | 298.51 |
| -1 | 2445294 | 1982-11-20 | 298.78 |
| 0 | 2445584 | 1983-09-06 | 299.92 |
| 1 | 2445883 | 1984-07-01 | 300.21 |
| 2 | 2446182 | 1985-04-26 | 299.65 |
| 3 | 2446489 | 1986-02-27 | 300.08 |
| 4 | 2446793 | 1986-12-28 | 301.21 |
| 5 | 2447089 | 1987-10-20 | 301.63 |
| 6 | 2447389 | 1988-08-15 | 301.07 |
| 7 | 2447690 | 1989-06-12 | 300.93 |
| 8 | 2447994 | 1990-04-12 | 301.29 |
| 9 | 2448294 | 1991-02-06 | 300.28 |
| 10 | 2448592 | 1991-12-01 | 299.63 |
| 11 | 2448903 | 1992-10-07 | 300.21 |
| 12 | 2449197 | 1993-07-28 | 300.01 |
| 13 | 2449485 | 1994-05-12 | 299.36 |
| 14 | 2449789 | 1995-03-12 | 298.07 |
| 15 | 2450098 | 1996-01-15 | 297.99 |
| 16 | 2450390 | 1996-11-02 | 300.36 |
| 17 | 2450687 | 1997-08-26 | 301.86 |
| 18 | 2450981 | 1998-06-16 | 301.29 |
| 19 | 2451291 | 1999-04-22 | 301.21 |
| 20 | 2451596 | 2000-02-21 | 302.99 |
| 21 | 2451904 | 2000-12-25 | 304.78 |
| 22 | 2452201 | 2001-10-18 | 305.01 |
| 23 | 2452504 | 2002-08-17 | 304.08 |
| 24 | 2452815 | 2003-06-24 | 303.21 |
| 25 | 2453120 | 2004-04-24 | 302.42 |
| 26 | 2453422 | 2005-02-20 | 302.14 |
| 27 | 2453722 | 2005-12-17 | 301.93 |
| 28 | 2454023 | 2006-10-14 | 300.86 |
| 29 | 2454316 | 2007-08-03 | 299.28 |
| 30 | 2454619 | 2008-06-01 | 298.99 |
| 31 | 2454927 | 2009-04-05 | 299.64 |
| 32 | 2455220 | 2010-01-23 | 300.36 |
| 33 | 2455512 | 2010-11-11 | 300.72 |
| 34 | 2455818 | 2011-09-13 | 300.21 |
| 35 | 2456122 | 2012-07-13 | 300.71 |
| 36 | 2456422 | 2013-05-09 | 301.86 |
| 37 | 2456723 | 2014-03-06 | 301.22 |
| 38 | 2457026 | 2015-01-03 | 300.43 |
| 39 | 2457331 | 2015-11-04 | 300.93 |
| 40 | 2457627 | 2016-08-26 | 301.35 |
| 41 | 2457920 | 2017-06-15 | 301.43 |
| 42 | 2458226 | 2018-04-17 | 300.79 |
| 43 | 2458531 | 2019-02-16 | 300.15 |
| 44 | 2458833 | 2019-12-15 | 301.15 |
| 45 | 2459136 | 2020-10-13 | 302.56 |
| 46 | 2459432 | 2021-08-05 | 301.25 |
| 47 | 2459728 | 2022-05-28 | 300.52 |
| 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. |