| E | O (JD) | O (dat) | Period |
| -111 | 2409915 | 1886-01-08 | 260.72 |
| -110 | 2410169 | 1886-09-19 | 260.92 |
| -100 | 2412810 | 1893-12-12 | 261.54 |
| -96 | 2413858 | 1896-10-25 | 261.4 |
| -93 | 2414621 | 1898-11-27 | 260.42 |
| -86 | 2416452 | 1903-12-03 | 259.98 |
| -85 | 2416728 | 1904-09-04 | 260.36 |
| -82 | 2417485 | 1906-10-01 | 259.51 |
| -80 | 2417964 | 1908-01-23 | 258.48 |
| -79 | 2418274 | 1908-11-28 | 258.27 |
| -78 | 2418548 | 1909-08-29 | 258.24 |
| -76 | 2419014 | 1910-12-08 | 259.73 |
| -72 | 2420072 | 1913-10-31 | 259.37 |
| -69 | 2420856 | 1915-12-24 | 257.2 |
| -68 | 2421104 | 1916-08-28 | 258 |
| -65 | 2421877 | 1918-10-10 | 258.68 |
| -64 | 2422142 | 1919-07-02 | 257.55 |
| -63 | 2422396 | 1920-03-12 | 258.11 |
| -62 | 2422648 | 1920-11-19 | 258.44 |
| -61 | 2422905 | 1921-08-03 | 258.21 |
| -60 | 2423174 | 1922-04-29 | 258.63 |
| -59 | 2423432 | 1923-01-12 | 259.07 |
| -58 | 2423684 | 1923-09-21 | 259.58 |
| -57 | 2423950 | 1924-06-13 | 258.8 |
| -56 | 2424209 | 1925-02-27 | 258.12 |
| -55 | 2424462 | 1925-11-07 | 259.56 |
| -54 | 2424725 | 1926-07-28 | 260.13 |
| -52 | 2425236 | 1927-12-21 | 259.7 |
| -51 | 2425500 | 1928-09-10 | 260.75 |
| -50 | 2425769 | 1929-06-06 | 261.23 |
| -49 | 2426027 | 1930-02-19 | 261.47 |
| -48 | 2426287 | 1930-11-06 | 261.95 |
| -47 | 2426556 | 1931-08-02 | 260.94 |
| -45 | 2427072 | 1932-12-30 | 260.12 |
| -44 | 2427334 | 1933-09-18 | 261.12 |
| -43 | 2427593 | 1934-06-04 | 260.24 |
| -42 | 2427851 | 1935-02-17 | 258.53 |
| -41 | 2428107 | 1935-10-31 | 258.82 |
| -40 | 2428385 | 1936-08-04 | 258.39 |
| -38 | 2428882 | 1937-12-14 | 257.39 |
| -37 | 2429141 | 1938-08-30 | 257.79 |
| -35 | 2429665 | 1940-02-05 | 258.4 |
| -34 | 2429913 | 1940-10-10 | 258.85 |
| -33 | 2430164 | 1941-06-18 | 259.45 |
| -31 | 2430692 | 1942-11-28 | 259.89 |
| -30 | 2430968 | 1943-08-31 | 260.95 |
| -28 | 2431476 | 1945-01-20 | 262.05 |
| -27 | 2431736 | 1945-10-07 | 262.63 |
| -26 | 2432008 | 1946-07-06 | 261.28 |
| -24 | 2432528 | 1947-12-08 | 260.82 |
| -23 | 2432790 | 1948-08-26 | 262.06 |
| -22 | 2433056 | 1949-05-19 | 261.63 |
| -21 | 2433307 | 1950-01-25 | 261.27 |
| -20 | 2433571 | 1950-10-16 | 261.71 |
| -19 | 2433834 | 1951-07-06 | 261.36 |
| -18 | 2434096 | 1952-03-24 | 261.36 |
| -17 | 2434359 | 1952-12-12 | 261.43 |
| -16 | 2434623 | 1953-09-02 | 260.93 |
| -15 | 2434882 | 1954-05-19 | 260.85 |
| -14 | 2435140 | 1955-02-01 | 260.64 |
| -13 | 2435398 | 1955-10-17 | 260.51 |
| -12 | 2435660 | 1956-07-05 | 260.72 |
| -11 | 2435922 | 1957-03-24 | 261.14 |
| -10 | 2436182 | 1957-12-09 | 261.21 |
| -9 | 2436447 | 1958-08-31 | 260.78 |
| -8 | 2436708 | 1959-05-19 | 260.36 |
| -7 | 2436970 | 1960-02-05 | 260.08 |
| -6 | 2437225 | 1960-10-17 | 259.14 |
| -5 | 2437484 | 1961-07-03 | 258.56 |
| -4 | 2437743 | 1962-03-19 | 259.43 |
| -3 | 2438002 | 1962-12-03 | 260.43 |
| -2 | 2438255 | 1963-08-13 | 261.08 |
| -1 | 2438520 | 1964-05-04 | 261.28 |
| 0 | 2438790 | 1965-01-29 | 261.35 |
| 1 | 2439051 | 1965-10-17 | 261.78 |
| 2 | 2439313 | 1966-07-06 | 261.72 |
| 3 | 2439572 | 1967-03-22 | 260.58 |
| 4 | 2439832 | 1967-12-07 | 259.71 |
| 5 | 2440090 | 1968-08-21 | 259.49 |
| 6 | 2440349 | 1969-05-07 | 259.64 |
| 7 | 2440609 | 1970-01-22 | 259.01 |
| 8 | 2440868 | 1970-10-08 | 258.51 |
| 9 | 2441129 | 1971-06-26 | 258.93 |
| 10 | 2441391 | 1972-03-14 | 258.85 |
| 11 | 2441639 | 1972-11-17 | 258.64 |
| 12 | 2441902 | 1973-08-07 | 258.51 |
| 13 | 2442162 | 1974-04-24 | 258.22 |
| 14 | 2442420 | 1975-01-07 | 258.36 |
| 15 | 2442678 | 1975-09-22 | 258.49 |
| 16 | 2442938 | 1976-06-08 | 258 |
| 17 | 2443197 | 1977-02-22 | 258.01 |
| 18 | 2443450 | 1977-11-02 | 259.15 |
| 19 | 2443710 | 1978-07-20 | 259.43 |
| 20 | 2443966 | 1979-04-02 | 258.92 |
| 21 | 2444228 | 1979-12-20 | 260.64 |
| 22 | 2444498 | 1980-09-15 | 262.22 |
| 23 | 2444750 | 1981-05-25 | 262.22 |
| 24 | 2445010 | 1982-02-09 | 263.07 |
| 25 | 2445286 | 1982-11-12 | 263.63 |
| 26 | 2445545 | 1983-07-29 | 264.21 |
| 27 | 2445802 | 1984-04-11 | 264.86 |
| 28 | 2446075 | 1985-01-09 | 264.58 |
| 29 | 2446342 | 1985-10-03 | 264.64 |
| 30 | 2446605 | 1986-06-23 | 264.71 |
| 31 | 2446863 | 1987-03-08 | 264 |
| 32 | 2447137 | 1987-12-07 | 263.36 |
| 33 | 2447399 | 1988-08-25 | 263.15 |
| 34 | 2447654 | 1989-05-07 | 262.93 |
| 35 | 2447919 | 1990-01-27 | 262.06 |
| 36 | 2448185 | 1990-10-20 | 261.93 |
| 37 | 2448446 | 1991-07-08 | 262.15 |
| 38 | 2448703 | 1992-03-21 | 261.22 |
| 39 | 2448966 | 1992-12-09 | 260.5 |
| 40 | 2449237 | 1993-09-06 | 260.06 |
| 41 | 2449486 | 1994-05-13 | 260.28 |
| 42 | 2449744 | 1995-01-26 | 260.86 |
| 43 | 2450007 | 1995-10-16 | 260.15 |
| 44 | 2450265 | 1996-06-30 | 260.07 |
| 45 | 2450528 | 1997-03-20 | 261.56 |
| 46 | 2450793 | 1997-12-10 | 262.21 |
| 47 | 2451052 | 1998-08-26 | 262.15 |
| 48 | 2451312 | 1999-05-13 | 261.36 |
| 49 | 2451580 | 2000-02-05 | 260.07 |
| 50 | 2451842 | 2000-10-24 | 259.85 |
| 51 | 2452100 | 2001-07-09 | 259.43 |
| 52 | 2452352 | 2002-03-18 | 258.72 |
| 53 | 2452610 | 2002-12-01 | 258.86 |
| 54 | 2452873 | 2003-08-21 | 259.21 |
| 55 | 2453123 | 2004-04-27 | 260.28 |
| 56 | 2453391 | 2005-01-20 | 261.43 |
| 57 | 2453655 | 2005-10-11 | 261.22 |
| 58 | 2453916 | 2006-06-29 | 261.36 |
| 59 | 2454180 | 2007-03-20 | 261.14 |
| 60 | 2454442 | 2007-12-07 | 260.49 |
| 61 | 2454698 | 2008-08-19 | 260.43 |
| 62 | 2454957 | 2009-05-05 | 260.01 |
| 63 | 2455213 | 2010-01-16 | 259.79 |
| 64 | 2455480 | 2010-10-10 | 259.71 |
| 65 | 2455737 | 2011-06-24 | 259.35 |
| 66 | 2455999 | 2012-03-12 | 259.43 |
| 67 | 2456260 | 2012-11-28 | 259.86 |
| 68 | 2456516 | 2013-08-11 | 260.29 |
| 69 | 2456770 | 2014-04-22 | 259.78 |
| 70 | 2457032 | 2015-01-09 | 257.99 |
| 71 | 2457299 | 2015-10-03 | 257.21 |
| 72 | 2457562 | 2016-06-22 | 257.58 |
| 73 | 2457811 | 2017-02-26 | 258.08 |
| 74 | 2458060 | 2017-11-02 | 258 |
| 75 | 2458317 | 2018-07-17 | 257.21 |
| 76 | 2458575 | 2019-04-01 | 257.71 |
| 77 | 2458840 | 2019-12-22 | 260.43 |
| 78 | 2459103 | 2020-09-10 | 261.94 |
| 79 | 2459359 | 2021-05-24 | 262.23 |
| 80 | 2459622 | 2022-02-11 | 262.4 |
| 81 | 2459895 | 2022-11-11 | 261.88 |
| 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. |