| E | O (JD) | O (dat) | Period |
| -162 | 2399836 | 1858-06-05 | 266.82 |
| -160 | 2400357 | 1859-11-08 | 269.04 |
| -159 | 2400632 | 1860-08-09 | 270.46 |
| -156 | 2401435 | 1862-10-21 | 268.98 |
| -155 | 2401699 | 1863-07-12 | 269.79 |
| -152 | 2402525 | 1865-10-15 | 270.75 |
| -151 | 2402791 | 1866-07-08 | 271.13 |
| -150 | 2403057 | 1867-03-31 | 272.09 |
| -148 | 2403611 | 1868-10-05 | 272.08 |
| -147 | 2403876 | 1869-06-27 | 271.71 |
| -144 | 2404698 | 1871-09-27 | 271.46 |
| -143 | 2404966 | 1872-06-21 | 270.88 |
| -140 | 2405788 | 1874-09-21 | 268.38 |
| -139 | 2406049 | 1875-06-09 | 267.37 |
| -138 | 2406314 | 1876-02-29 | 267.61 |
| -135 | 2407126 | 1878-05-21 | 267.33 |
| -126 | 2409486 | 1884-11-05 | 267.25 |
| -125 | 2409783 | 1885-08-29 | 267.72 |
| -118 | 2411656 | 1890-10-15 | 267.89 |
| -114 | 2412732 | 1893-09-25 | 268.96 |
| -113 | 2413002 | 1894-06-22 | 269.68 |
| -110 | 2413818 | 1896-09-15 | 269.36 |
| -109 | 2414088 | 1897-06-12 | 269.58 |
| -106 | 2414896 | 1899-08-29 | 269 |
| -105 | 2415160 | 1900-05-20 | 269.16 |
| -102 | 2415976 | 1902-08-14 | 269.37 |
| -101 | 2416230 | 1903-04-25 | 269.14 |
| -99 | 2416767 | 1904-10-13 | 269.05 |
| -98 | 2417051 | 1905-07-24 | 268.45 |
| -97 | 2417320 | 1906-04-19 | 269.13 |
| -96 | 2417585 | 1907-01-09 | 271.73 |
| -95 | 2417852 | 1907-10-03 | 271.78 |
| -94 | 2418116 | 1908-06-23 | 268.78 |
| -93 | 2418396 | 1909-03-30 | 266.4 |
| -92 | 2418677 | 1910-01-05 | 267 |
| -91 | 2418946 | 1910-10-01 | 268.68 |
| -90 | 2419188 | 1911-05-31 | 269.12 |
| -88 | 2419713 | 1912-11-06 | 267.19 |
| -87 | 2419996 | 1913-08-16 | 265.81 |
| -86 | 2420271 | 1914-05-18 | 268.69 |
| -85 | 2420547 | 1915-02-18 | 272.27 |
| -84 | 2420801 | 1915-10-30 | 271 |
| -83 | 2421075 | 1916-07-30 | 268.22 |
| -82 | 2421358 | 1917-05-09 | 268 |
| -81 | 2421627 | 1918-02-02 | 268.93 |
| -80 | 2421876 | 1918-10-09 | 268.21 |
| -79 | 2422146 | 1919-07-06 | 266.14 |
| -78 | 2422424 | 1920-04-09 | 266.22 |
| -77 | 2422689 | 1920-12-30 | 268.65 |
| -76 | 2422942 | 1921-09-09 | 269.5 |
| -75 | 2423217 | 1922-06-11 | 268 |
| -74 | 2423495 | 1923-03-16 | 267.35 |
| -73 | 2423769 | 1923-12-15 | 268.36 |
| -72 | 2424026 | 1924-08-28 | 269.22 |
| -71 | 2424296 | 1925-05-25 | 269.07 |
| -70 | 2424560 | 1926-02-13 | 268.71 |
| -69 | 2424828 | 1926-11-08 | 268.57 |
| -68 | 2425100 | 1927-08-07 | 268.72 |
| -67 | 2425379 | 1928-05-12 | 268.22 |
| -66 | 2425647 | 1929-02-04 | 267.85 |
| -65 | 2425908 | 1929-10-23 | 268.14 |
| -64 | 2426176 | 1930-07-18 | 267.43 |
| -63 | 2426435 | 1931-04-03 | 266.43 |
| -62 | 2426703 | 1931-12-27 | 267 |
| -61 | 2426979 | 1932-09-28 | 267.57 |
| -60 | 2427244 | 1933-06-20 | 267.78 |
| -59 | 2427512 | 1934-03-15 | 267.93 |
| -58 | 2427781 | 1934-12-09 | 267.36 |
| -57 | 2428049 | 1935-09-03 | 267.08 |
| -56 | 2428311 | 1936-05-22 | 267.64 |
| -55 | 2428578 | 1937-02-13 | 268.14 |
| -54 | 2428847 | 1937-11-09 | 268.43 |
| -53 | 2429115 | 1938-08-04 | 268.93 |
| -52 | 2429388 | 1939-05-04 | 269.36 |
| -51 | 2429659 | 1940-01-30 | 269 |
| -50 | 2429929 | 1940-10-26 | 268.07 |
| -49 | 2430196 | 1941-07-20 | 267.78 |
| -48 | 2430464 | 1942-04-14 | 267.15 |
| -47 | 2430727 | 1943-01-02 | 266.36 |
| -46 | 2430988 | 1943-09-20 | 267.07 |
| -45 | 2431264 | 1944-06-22 | 266.64 |
| -44 | 2431523 | 1945-03-08 | 266 |
| -43 | 2431794 | 1945-12-04 | 266.72 |
| -42 | 2432070 | 1946-09-06 | 266.86 |
| -41 | 2432323 | 1947-05-17 | 266.85 |
| -40 | 2432592 | 1948-02-10 | 267.43 |
| -39 | 2432857 | 1948-11-01 | 266.5 |
| -38 | 2433131 | 1949-08-02 | 265.65 |
| -37 | 2433392 | 1950-04-20 | 267 |
| -36 | 2433669 | 1951-01-22 | 267.35 |
| -35 | 2433926 | 1951-10-06 | 266.35 |
| -34 | 2434186 | 1952-06-22 | 267.28 |
| -33 | 2434467 | 1953-03-30 | 268.15 |
| -32 | 2434725 | 1953-12-13 | 268.72 |
| -31 | 2434992 | 1954-09-06 | 270.21 |
| -30 | 2435273 | 1955-06-14 | 270.14 |
| -29 | 2435542 | 1956-03-09 | 270.57 |
| -28 | 2435815 | 1956-12-07 | 271.15 |
| -27 | 2436080 | 1957-08-29 | 270.79 |
| -26 | 2436355 | 1958-05-31 | 270.71 |
| -25 | 2436625 | 1959-02-25 | 270.5 |
| -24 | 2436888 | 1959-11-15 | 270.71 |
| -23 | 2437168 | 1960-08-21 | 270.5 |
| -22 | 2437437 | 1961-05-17 | 269.43 |
| -21 | 2437707 | 1962-02-11 | 270 |
| -20 | 2437978 | 1962-11-09 | 270.35 |
| -19 | 2438244 | 1963-08-02 | 269.5 |
| -18 | 2438508 | 1964-04-22 | 269.36 |
| -17 | 2438785 | 1965-01-24 | 270.29 |
| -16 | 2439056 | 1965-10-22 | 270.57 |
| -15 | 2439322 | 1966-07-15 | 270.57 |
| -14 | 2439593 | 1967-04-12 | 269.93 |
| -13 | 2439876 | 1968-01-20 | 268.65 |
| -12 | 2440134 | 1968-10-04 | 269.58 |
| -11 | 2440406 | 1969-07-03 | 270.5 |
| -10 | 2440666 | 1970-03-20 | 269.14 |
| -9 | 2440936 | 1970-12-15 | 268.43 |
| -8 | 2441216 | 1971-09-21 | 268.79 |
| -7 | 2441486 | 1972-06-17 | 269 |
| -6 | 2441751 | 1973-03-09 | 269.35 |
| -5 | 2442017 | 1973-11-30 | 268.5 |
| -4 | 2442286 | 1974-08-26 | 267.78 |
| -3 | 2442552 | 1975-05-19 | 267.86 |
| -2 | 2442821 | 1976-02-12 | 268.36 |
| -1 | 2443090 | 1976-11-07 | 268.57 |
| 0 | 2443361 | 1977-08-05 | 267.78 |
| 1 | 2443626 | 1978-04-27 | 267.71 |
| 2 | 2443899 | 1979-01-25 | 267.86 |
| 3 | 2444164 | 1979-10-17 | 268.29 |
| 4 | 2444423 | 1980-07-02 | 269.64 |
| 5 | 2444698 | 1981-04-03 | 269.93 |
| 6 | 2444963 | 1981-12-24 | 269.28 |
| 7 | 2445244 | 1982-10-01 | 269.86 |
| 8 | 2445518 | 1983-07-02 | 270.65 |
| 9 | 2445786 | 1984-03-26 | 270.64 |
| 10 | 2446047 | 1984-12-12 | 269.85 |
| 11 | 2446318 | 1985-09-09 | 267.93 |
| 12 | 2446592 | 1986-06-10 | 266.36 |
| 13 | 2446858 | 1987-03-03 | 266.22 |
| 14 | 2447127 | 1987-11-27 | 267.07 |
| 15 | 2447386 | 1988-08-12 | 266.93 |
| 16 | 2447647 | 1989-04-30 | 266.14 |
| 17 | 2447913 | 1990-01-21 | 265.86 |
| 18 | 2448191 | 1990-10-26 | 266.79 |
| 19 | 2448456 | 1991-07-18 | 268.07 |
| 20 | 2448720 | 1992-04-07 | 267.35 |
| 21 | 2448987 | 1992-12-30 | 266.35 |
| 22 | 2449261 | 1993-09-30 | 267.43 |
| 23 | 2449525 | 1994-06-21 | 269 |
| 24 | 2449778 | 1995-03-01 | 269.85 |
| 25 | 2450055 | 1995-12-03 | 269.43 |
| 26 | 2450336 | 1996-09-09 | 268.78 |
| 27 | 2450606 | 1997-06-06 | 270.36 |
| 28 | 2450879 | 1998-03-06 | 271.29 |
| 29 | 2451141 | 1998-11-23 | 269.85 |
| 30 | 2451408 | 1999-08-17 | 268.85 |
| 31 | 2451680 | 2000-05-15 | 268.21 |
| 32 | 2451951 | 2001-02-10 | 267.79 |
| 33 | 2452218 | 2001-11-04 | 268.36 |
| 34 | 2452488 | 2002-08-01 | 268.35 |
| 35 | 2452752 | 2003-04-22 | 268.43 |
| 36 | 2453017 | 2004-01-12 | 268.5 |
| 37 | 2453289 | 2004-10-10 | 268.08 |
| 38 | 2453556 | 2005-07-04 | 268.29 |
| 39 | 2453833 | 2006-04-07 | 268.5 |
| 40 | 2454095 | 2006-12-25 | 267.43 |
| 41 | 2454364 | 2007-09-20 | 266.93 |
| 42 | 2454632 | 2008-06-14 | 266.79 |
| 43 | 2454896 | 2009-03-05 | 266.72 |
| 44 | 2455154 | 2009-11-18 | 267.21 |
| 45 | 2455428 | 2010-08-19 | 267.43 |
| 46 | 2455696 | 2011-05-14 | 267.78 |
| 47 | 2455966 | 2012-02-08 | 268.43 |
| 48 | 2456234 | 2012-11-02 | 268.93 |
| 49 | 2456506 | 2013-08-01 | 268.93 |
| 50 | 2456771 | 2014-04-23 | 269 |
| 51 | 2457037 | 2015-01-14 | 269.5 |
| 52 | 2457310 | 2015-10-14 | 270.22 |
| 53 | 2457579 | 2016-07-09 | 270.86 |
| 54 | 2457849 | 2017-04-05 | 271.5 |
| 55 | 2458124 | 2018-01-05 | 271.07 |
| 56 | 2458399 | 2018-10-07 | 270.85 |
| 57 | 2458670 | 2019-07-05 | 271.36 |
| 58 | 2458939 | 2020-03-30 | 271.34 |
| 59 | 2459203 | 2020-12-19 | 270.37 |
| 60 | 2459478 | 2021-09-20 | 269.25 |
| 61 | 2459749 | 2022-06-18 | 268.91 |
| 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. |