| E | O (JD) | O (dat) | Period |
| -144 | 2398654 | 1855-03-11 | 326.29 |
| -143 | 2398979 | 1856-01-30 | 323.8 |
| -142 | 2399314 | 1856-12-30 | 324.1 |
| -141 | 2399650 | 1857-12-01 | 324.46 |
| -140 | 2399962 | 1858-10-09 | 324.99 |
| -139 | 2400281 | 1859-08-24 | 325.77 |
| -136 | 2401245 | 1862-04-14 | 325.72 |
| -135 | 2401581 | 1863-03-16 | 325.27 |
| -134 | 2401910 | 1864-02-08 | 325.12 |
| -133 | 2402243 | 1865-01-06 | 325.19 |
| -130 | 2403230 | 1867-09-20 | 325.08 |
| -129 | 2403544 | 1868-07-30 | 325.08 |
| -126 | 2404510 | 1871-03-23 | 324.8 |
| -125 | 2404833 | 1872-02-09 | 324.72 |
| -124 | 2405151 | 1872-12-23 | 324.65 |
| -123 | 2405479 | 1873-11-16 | 324.51 |
| -122 | 2405815 | 1874-10-18 | 324.94 |
| -121 | 2406145 | 1875-09-13 | 325.35 |
| -116 | 2407766 | 1880-02-20 | 324.96 |
| -115 | 2408090 | 1881-01-09 | 324.58 |
| -114 | 2408405 | 1881-11-20 | 324.39 |
| -113 | 2408734 | 1882-10-15 | 324.39 |
| -112 | 2409066 | 1883-09-12 | 324.47 |
| -108 | 2410350 | 1887-03-19 | 323.64 |
| -107 | 2410672 | 1888-02-04 | 323.72 |
| -106 | 2411010 | 1889-01-07 | 324.03 |
| -105 | 2411344 | 1889-12-07 | 324.26 |
| -104 | 2411662 | 1890-10-21 | 324.36 |
| -100 | 2412925 | 1894-04-06 | 324.77 |
| -99 | 2413271 | 1895-03-18 | 324.42 |
| -98 | 2413604 | 1896-02-14 | 323.46 |
| -97 | 2413938 | 1897-01-13 | 323.01 |
| -96 | 2414255 | 1897-11-26 | 323.06 |
| -95 | 2414579 | 1898-10-16 | 322.44 |
| -94 | 2414895 | 1899-08-28 | 321.55 |
| -90 | 2416179 | 1903-03-05 | 320.83 |
| -89 | 2416500 | 1904-01-20 | 320.73 |
| -88 | 2416825 | 1904-12-10 | 321.63 |
| -87 | 2417131 | 1905-10-12 | 321.86 |
| -86 | 2417471 | 1906-09-17 | 322.35 |
| -85 | 2417779 | 1907-07-22 | 323.15 |
| -84 | 2418111 | 1908-06-18 | 323.42 |
| -83 | 2418453 | 1909-05-26 | 322.15 |
| -82 | 2418757 | 1910-03-26 | 322.32 |
| -81 | 2419079 | 1911-02-11 | 321.25 |
| -80 | 2419409 | 1912-01-07 | 322.06 |
| -79 | 2419730 | 1912-11-23 | 322.4 |
| -78 | 2420021 | 1913-09-10 | 322.68 |
| -77 | 2420367 | 1914-08-22 | 323.87 |
| -76 | 2420681 | 1915-07-02 | 324.02 |
| -74 | 2421344 | 1917-04-25 | 323.85 |
| -73 | 2421675 | 1918-03-22 | 324.21 |
| -72 | 2421992 | 1919-02-02 | 324.57 |
| -71 | 2422318 | 1919-12-25 | 323.66 |
| -70 | 2422635 | 1920-11-06 | 323 |
| -69 | 2422951 | 1921-09-18 | 321.99 |
| -68 | 2423278 | 1922-08-11 | 322.25 |
| -67 | 2423601 | 1923-06-30 | 322.55 |
| -66 | 2423932 | 1924-05-26 | 322.86 |
| -65 | 2424240 | 1925-03-30 | 323.45 |
| -64 | 2424570 | 1926-02-23 | 324.15 |
| -63 | 2424900 | 1927-01-19 | 324.14 |
| -62 | 2425215 | 1927-11-30 | 324.8 |
| -61 | 2425543 | 1928-10-23 | 325.16 |
| -60 | 2425868 | 1929-09-13 | 326.05 |
| -59 | 2426200 | 1930-08-11 | 325.98 |
| -58 | 2426518 | 1931-06-25 | 326.03 |
| -57 | 2426854 | 1932-05-26 | 326.15 |
| -56 | 2427175 | 1933-04-12 | 325.59 |
| -55 | 2427504 | 1934-03-07 | 324.24 |
| -54 | 2427828 | 1935-01-25 | 323.85 |
| -53 | 2428152 | 1935-12-15 | 323.25 |
| -52 | 2428474 | 1936-11-01 | 322.58 |
| -51 | 2428796 | 1937-09-19 | 322.73 |
| -50 | 2429101 | 1938-07-21 | 322.63 |
| -49 | 2429444 | 1939-06-29 | 323.13 |
| -48 | 2429756 | 1940-05-06 | 323.17 |
| -47 | 2430084 | 1941-03-30 | 323.41 |
| -46 | 2430412 | 1942-02-21 | 323.85 |
| -45 | 2430733 | 1943-01-08 | 324.68 |
| -44 | 2431063 | 1943-12-04 | 324.41 |
| -43 | 2431376 | 1944-10-12 | 325.58 |
| -42 | 2431701 | 1945-09-02 | 326.06 |
| -41 | 2432029 | 1946-07-27 | 327.15 |
| -40 | 2432362 | 1947-06-25 | 328.01 |
| -39 | 2432685 | 1948-05-13 | 328.42 |
| -38 | 2433022 | 1949-04-15 | 329.02 |
| -37 | 2433348 | 1950-03-07 | 328.26 |
| -36 | 2433686 | 1951-02-08 | 327.03 |
| -35 | 2434008 | 1951-12-27 | 325.66 |
| -34 | 2434332 | 1952-11-15 | 324.91 |
| -33 | 2434660 | 1953-10-09 | 323.42 |
| -32 | 2434974 | 1954-08-19 | 322.59 |
| -31 | 2435293 | 1955-07-04 | 321.62 |
| -30 | 2435615 | 1956-05-21 | 320.86 |
| -29 | 2435946 | 1957-04-17 | 320.39 |
| -28 | 2436259 | 1958-02-24 | 319.96 |
| -27 | 2436584 | 1959-01-15 | 319.76 |
| -26 | 2436902 | 1959-11-29 | 319.73 |
| -25 | 2437212 | 1960-10-04 | 319.67 |
| -24 | 2437537 | 1961-08-25 | 319.51 |
| -23 | 2437855 | 1962-07-09 | 320.18 |
| -22 | 2438171 | 1963-05-21 | 320.44 |
| -21 | 2438500 | 1964-04-14 | 321.15 |
| -20 | 2438822 | 1965-03-02 | 322.11 |
| -19 | 2439139 | 1966-01-13 | 322.02 |
| -18 | 2439465 | 1966-12-05 | 322.31 |
| -17 | 2439784 | 1967-10-20 | 322.64 |
| -16 | 2440109 | 1968-09-09 | 321.85 |
| -15 | 2440438 | 1969-08-04 | 321.81 |
| -14 | 2440750 | 1970-06-12 | 321.8 |
| -13 | 2441076 | 1971-05-04 | 321.37 |
| -12 | 2441403 | 1972-03-26 | 321.46 |
| -11 | 2441709 | 1973-01-26 | 321.35 |
| -10 | 2442038 | 1973-12-21 | 320.99 |
| -9 | 2442360 | 1974-11-08 | 321.34 |
| -8 | 2442678 | 1975-09-22 | 321.75 |
| -7 | 2443006 | 1976-08-15 | 322.32 |
| -6 | 2443327 | 1977-07-02 | 323.39 |
| -5 | 2443640 | 1978-05-11 | 323.41 |
| -4 | 2443967 | 1979-04-03 | 323.78 |
| -3 | 2444300 | 1980-03-01 | 324.07 |
| -2 | 2444622 | 1981-01-17 | 323.46 |
| -1 | 2444950 | 1981-12-11 | 323.16 |
| 0 | 2445269 | 1982-10-26 | 323.25 |
| 1 | 2445594 | 1983-09-16 | 322.49 |
| 2 | 2445917 | 1984-08-04 | 322.17 |
| 3 | 2446227 | 1985-06-10 | 322.28 |
| 4 | 2446550 | 1986-04-29 | 322.05 |
| 5 | 2446882 | 1987-03-27 | 322.25 |
| 6 | 2447199 | 1988-02-07 | 322.13 |
| 7 | 2447528 | 1989-01-01 | 323.23 |
| 8 | 2447850 | 1989-11-19 | 323.54 |
| 9 | 2448166 | 1990-10-01 | 323.4 |
| 10 | 2448491 | 1991-08-22 | 323.46 |
| 11 | 2448809 | 1992-07-05 | 323.85 |
| 12 | 2449154 | 1993-06-15 | 324.09 |
| 13 | 2449461 | 1994-04-18 | 324.16 |
| 14 | 2449788 | 1995-03-11 | 324.35 |
| 15 | 2450117 | 1996-02-03 | 323.93 |
| 16 | 2450439 | 1996-12-21 | 323.8 |
| 17 | 2450767 | 1997-11-14 | 323.51 |
| 18 | 2451082 | 1998-09-25 | 324.21 |
| 19 | 2451409 | 1999-08-18 | 323.57 |
| 20 | 2451728 | 2000-07-02 | 323.5 |
| 21 | 2452057 | 2001-05-27 | 323.55 |
| 22 | 2452385 | 2002-04-20 | 323.47 |
| 23 | 2452708 | 2003-03-09 | 323.81 |
| 24 | 2453021 | 2004-01-16 | 323.64 |
| 25 | 2453353 | 2004-12-13 | 323.5 |
| 26 | 2453674 | 2005-10-30 | 323.56 |
| 27 | 2453996 | 2006-09-17 | 323.61 |
| 28 | 2454323 | 2007-08-10 | 323.95 |
| 29 | 2454645 | 2008-06-27 | 324.19 |
| 30 | 2454966 | 2009-05-14 | 324.08 |
| 31 | 2455299 | 2010-04-12 | 324.02 |
| 32 | 2455618 | 2011-02-25 | 324.04 |
| 33 | 2455943 | 2012-01-16 | 323.49 |
| 34 | 2456265 | 2012-12-03 | 323.55 |
| 35 | 2456593 | 2013-10-27 | 324.15 |
| 36 | 2456910 | 2014-09-09 | 324.25 |
| 37 | 2457238 | 2015-08-03 | 325.38 |
| 38 | 2457552 | 2016-06-12 | 325.91 |
| 39 | 2457884 | 2017-05-10 | 326.25 |
| 40 | 2458222 | 2018-04-13 | 326.3 |
| 41 | 2458541 | 2019-02-26 | 326.07 |
| 42 | 2458879 | 2020-01-30 | 325.25 |
| 43 | 2459199 | 2020-12-15 | 325.18 |
| 44 | 2459521 | 2021-11-02 | 324.1 |
| 45 | 2459844 | 2022-09-21 | 322.83 |
| 46 | 2460160 | 2023-08-03 | 322.29 |
| 47 | 2460480 | 2024-06-18 | 320.31 |
| 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. |