| E | O (JD) | O (dat) | Period |
| -114 | 2398693 | 1855-04-19 | 407.35 |
| -109 | 2400711 | 1860-10-27 | 407.87 |
| -108 | 2401109 | 1861-11-29 | 408.33 |
| -107 | 2401538 | 1863-02-01 | 408.84 |
| -105 | 2402351 | 1865-04-24 | 409.27 |
| -104 | 2402767 | 1866-06-14 | 409.76 |
| -103 | 2403174 | 1867-07-26 | 411.65 |
| -102 | 2403586 | 1868-09-10 | 411.71 |
| -101 | 2404001 | 1869-10-30 | 411.1 |
| -100 | 2404413 | 1870-12-16 | 411.25 |
| -99 | 2404830 | 1872-02-06 | 411.72 |
| -98 | 2405230 | 1873-03-12 | 411.75 |
| -97 | 2405643 | 1874-04-29 | 410.85 |
| -96 | 2406055 | 1875-06-15 | 410.16 |
| -94 | 2406875 | 1877-09-12 | 409.47 |
| -93 | 2407303 | 1878-11-14 | 409.11 |
| -92 | 2407703 | 1879-12-19 | 409.01 |
| -91 | 2408096 | 1881-01-15 | 408.46 |
| -90 | 2408508 | 1882-03-03 | 407.97 |
| -89 | 2408912 | 1883-04-11 | 405.4 |
| -88 | 2409327 | 1884-05-30 | 404.86 |
| -87 | 2409734 | 1885-07-11 | 404.77 |
| -86 | 2410143 | 1886-08-24 | 404.43 |
| -85 | 2410551 | 1887-10-06 | 404.16 |
| -81 | 2412140 | 1892-02-11 | 403.56 |
| -80 | 2412564 | 1893-04-10 | 402.25 |
| -79 | 2412960 | 1894-05-11 | 401.18 |
| -78 | 2413359 | 1895-06-14 | 400.69 |
| -77 | 2413776 | 1896-08-04 | 400.32 |
| -76 | 2414164 | 1897-08-27 | 399.66 |
| -75 | 2414544 | 1898-09-11 | 398.18 |
| -74 | 2414942 | 1899-10-14 | 398.21 |
| -73 | 2415360 | 1900-12-06 | 398.25 |
| -72 | 2415760 | 1902-01-10 | 398.75 |
| -71 | 2416149 | 1903-02-03 | 400.75 |
| -70 | 2416543 | 1904-03-03 | 402.28 |
| -69 | 2416948 | 1905-04-12 | 403.39 |
| -68 | 2417350 | 1906-05-19 | 404.55 |
| -67 | 2417759 | 1907-07-02 | 407.06 |
| -66 | 2418172 | 1908-08-18 | 408.48 |
| -65 | 2418575 | 1909-09-25 | 409.07 |
| -64 | 2418992 | 1910-11-16 | 409.41 |
| -63 | 2419405 | 1912-01-03 | 410.03 |
| -62 | 2419826 | 1913-02-27 | 410 |
| -61 | 2420215 | 1914-03-23 | 409.64 |
| -60 | 2420621 | 1915-05-03 | 409.52 |
| -59 | 2421037 | 1916-06-22 | 408.94 |
| -58 | 2421456 | 1917-08-15 | 408.94 |
| -57 | 2421861 | 1918-09-24 | 408.6 |
| -56 | 2422265 | 1919-11-02 | 409.18 |
| -55 | 2422676 | 1920-12-17 | 409.01 |
| -54 | 2423083 | 1922-01-28 | 408.29 |
| -53 | 2423497 | 1923-03-18 | 407.47 |
| -52 | 2423895 | 1924-04-19 | 406.78 |
| -51 | 2424308 | 1925-06-06 | 405.75 |
| -50 | 2424721 | 1926-07-24 | 404.64 |
| -49 | 2425123 | 1927-08-30 | 403.74 |
| -48 | 2425522 | 1928-10-02 | 402.99 |
| -47 | 2425919 | 1929-11-03 | 402.71 |
| -46 | 2426318 | 1930-12-07 | 401.89 |
| -45 | 2426723 | 1932-01-16 | 401.76 |
| -44 | 2427126 | 1933-02-22 | 402.2 |
| -43 | 2427531 | 1934-04-03 | 402.46 |
| -42 | 2427934 | 1935-05-11 | 403.25 |
| -41 | 2428332 | 1936-06-12 | 403.19 |
| -40 | 2428739 | 1937-07-24 | 403.09 |
| -39 | 2429142 | 1938-08-31 | 403.35 |
| -38 | 2429540 | 1939-10-03 | 403.9 |
| -37 | 2429956 | 1940-11-22 | 404.38 |
| -36 | 2430348 | 1941-12-19 | 405.07 |
| -35 | 2430754 | 1943-01-29 | 405.77 |
| -34 | 2431163 | 1944-03-13 | 406.43 |
| -33 | 2431574 | 1945-04-28 | 406.44 |
| -32 | 2431976 | 1946-06-04 | 406.33 |
| -31 | 2432386 | 1947-07-19 | 406.96 |
| -30 | 2432799 | 1948-09-04 | 406.72 |
| -29 | 2433203 | 1949-10-13 | 405.71 |
| -28 | 2433598 | 1950-11-12 | 404.55 |
| -27 | 2434009 | 1951-12-28 | 403.69 |
| -26 | 2434420 | 1953-02-11 | 401.97 |
| -25 | 2434823 | 1954-03-21 | 400.79 |
| -24 | 2435214 | 1955-04-16 | 400.9 |
| -23 | 2435612 | 1956-05-18 | 400.82 |
| -22 | 2436015 | 1957-06-25 | 401.4 |
| -21 | 2436402 | 1958-07-17 | 402.39 |
| -20 | 2436807 | 1959-08-26 | 403.57 |
| -19 | 2437224 | 1960-10-16 | 405.44 |
| -18 | 2437620 | 1961-11-16 | 407.43 |
| -17 | 2438044 | 1963-01-14 | 409.15 |
| -16 | 2438449 | 1964-02-23 | 410.93 |
| -15 | 2438848 | 1965-03-28 | 411.52 |
| -14 | 2439265 | 1966-05-19 | 411.52 |
| -13 | 2439687 | 1967-07-15 | 411.76 |
| -12 | 2440098 | 1968-08-29 | 411 |
| -11 | 2440513 | 1969-10-18 | 410.72 |
| -10 | 2440922 | 1970-12-01 | 410.59 |
| -9 | 2441327 | 1972-01-10 | 409.54 |
| -8 | 2441736 | 1973-02-22 | 408.67 |
| -7 | 2442141 | 1974-04-03 | 408.35 |
| -6 | 2442547 | 1975-05-14 | 408.25 |
| -5 | 2442965 | 1976-07-05 | 407.93 |
| -4 | 2443369 | 1977-08-13 | 408.33 |
| -3 | 2443777 | 1978-09-25 | 408.44 |
| -2 | 2444185 | 1979-11-07 | 408.01 |
| -1 | 2444596 | 1980-12-22 | 407.95 |
| 0 | 2444993 | 1982-01-23 | 407.5 |
| 1 | 2445414 | 1983-03-20 | 407.13 |
| 2 | 2445820 | 1984-04-29 | 406.52 |
| 3 | 2446216 | 1985-05-30 | 406.53 |
| 4 | 2446634 | 1986-07-22 | 406.43 |
| 5 | 2447037 | 1987-08-29 | 406.55 |
| 6 | 2447435 | 1988-09-30 | 406.41 |
| 7 | 2447839 | 1989-11-08 | 406.89 |
| 8 | 2448257 | 1990-12-31 | 407.18 |
| 9 | 2448661 | 1992-02-08 | 407.26 |
| 10 | 2449068 | 1993-03-21 | 407.63 |
| 11 | 2449480 | 1994-05-07 | 407.51 |
| 12 | 2449886 | 1995-06-17 | 407.35 |
| 13 | 2450289 | 1996-07-24 | 406.85 |
| 14 | 2450703 | 1997-09-11 | 406.61 |
| 15 | 2451105 | 1998-10-18 | 406.23 |
| 16 | 2451505 | 1999-11-22 | 405.58 |
| 17 | 2451920 | 2001-01-10 | 405.42 |
| 18 | 2452325 | 2002-02-19 | 404.98 |
| 19 | 2452726 | 2003-03-27 | 404.54 |
| 20 | 2453132 | 2004-05-06 | 404.19 |
| 21 | 2453532 | 2005-06-10 | 403.54 |
| 22 | 2453941 | 2006-07-24 | 402.58 |
| 23 | 2454340 | 2007-08-27 | 402.09 |
| 24 | 2454747 | 2008-10-07 | 401.47 |
| 25 | 2455144 | 2009-11-08 | 401.09 |
| 26 | 2455543 | 2010-12-12 | 400.71 |
| 27 | 2455944 | 2012-01-17 | 400.35 |
| 28 | 2456344 | 2013-02-20 | 400.49 |
| 29 | 2456740 | 2014-03-23 | 400.45 |
| 30 | 2457147 | 2015-05-04 | 401.06 |
| 31 | 2457544 | 2016-06-04 | 401.65 |
| 32 | 2457947 | 2017-07-12 | 401.88 |
| 33 | 2458350 | 2018-08-19 | 402.22 |
| 34 | 2458749 | 2019-09-22 | 402.64 |
| 35 | 2459157 | 2020-11-03 | 402.61 |
| 36 | 2459562 | 2021-12-13 | 403.4 |
| 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. |