| E | O (JD) | O (dat) | Period |
| -142 | 2412904 | 1894-03-16 | 230.91 |
| -136 | 2414315 | 1898-01-25 | 231.88 |
| -134 | 2414760 | 1899-04-15 | 233.55 |
| -131 | 2415470 | 1901-03-26 | 233.01 |
| -130 | 2415690 | 1901-11-01 | 231.86 |
| -129 | 2415933 | 1902-07-02 | 232.6 |
| -128 | 2416172 | 1903-02-26 | 233.73 |
| -125 | 2416859 | 1905-01-13 | 232.7 |
| -123 | 2417316 | 1906-04-15 | 232.65 |
| -122 | 2417574 | 1906-12-29 | 231.95 |
| -121 | 2417798 | 1907-08-10 | 231.84 |
| -120 | 2418016 | 1908-03-15 | 232.82 |
| -119 | 2418260 | 1908-11-14 | 231.58 |
| -118 | 2418484 | 1909-06-26 | 231.21 |
| -117 | 2418720 | 1910-02-17 | 231.44 |
| -115 | 2419180 | 1911-05-23 | 231.31 |
| -111 | 2420110 | 1913-12-08 | 231.71 |
| -109 | 2420580 | 1915-03-23 | 231.28 |
| -107 | 2421020 | 1916-06-05 | 231.07 |
| -106 | 2421270 | 1917-02-10 | 231.29 |
| -104 | 2421730 | 1918-05-16 | 230.82 |
| -103 | 2421950 | 1918-12-22 | 231.21 |
| -101 | 2422420 | 1920-04-05 | 230.92 |
| -98 | 2423115 | 1922-03-01 | 230.16 |
| -93 | 2424269 | 1925-04-28 | 230.63 |
| -90 | 2424961 | 1927-03-21 | 230.9 |
| -87 | 2425642 | 1929-01-30 | 230.65 |
| -85 | 2426104 | 1930-05-07 | 230.69 |
| -84 | 2426340 | 1930-12-29 | 230.74 |
| -82 | 2426804 | 1932-04-06 | 231.13 |
| -80 | 2427265 | 1933-07-11 | 231.82 |
| -79 | 2427501 | 1934-03-04 | 231.21 |
| -77 | 2427959 | 1935-06-05 | 230.07 |
| -76 | 2428191 | 1936-01-23 | 229.53 |
| -74 | 2428655 | 1937-05-01 | 229.17 |
| -71 | 2429338 | 1939-03-15 | 229.47 |
| -68 | 2430018 | 1941-01-23 | 229.78 |
| -66 | 2430478 | 1942-04-28 | 229.15 |
| -63 | 2431163 | 1944-03-13 | 228.77 |
| -61 | 2431640 | 1945-07-03 | 229.59 |
| -60 | 2431863 | 1946-02-11 | 230.56 |
| -58 | 2432316 | 1947-05-10 | 231.29 |
| -57 | 2432540 | 1947-12-20 | 231.29 |
| -55 | 2433015 | 1949-04-08 | 230.68 |
| -52 | 2433706 | 1951-02-28 | 230.76 |
| -42 | 2436030 | 1957-07-10 | 230.94 |
| -41 | 2436256 | 1958-02-21 | 230.57 |
| -39 | 2436705 | 1959-05-16 | 230.02 |
| -34 | 2437858 | 1962-07-12 | 229.38 |
| -33 | 2438083 | 1963-02-22 | 229.26 |
| -32 | 2438309 | 1963-10-06 | 230.24 |
| -31 | 2438533 | 1964-05-17 | 230.11 |
| -29 | 2439002 | 1965-08-29 | 230.11 |
| -28 | 2439245 | 1966-04-29 | 230.86 |
| -27 | 2439472 | 1966-12-12 | 231.41 |
| -26 | 2439693 | 1967-07-21 | 231.65 |
| -23 | 2440390 | 1969-06-17 | 230.96 |
| -20 | 2441081 | 1971-05-09 | 230.87 |
| -19 | 2441315 | 1971-12-29 | 231.91 |
| -18 | 2441548 | 1972-08-18 | 232.86 |
| -17 | 2441780 | 1973-04-07 | 233.67 |
| -15 | 2442247 | 1974-07-18 | 234.32 |
| -14 | 2442484 | 1975-03-12 | 234.07 |
| -13 | 2442722 | 1975-11-05 | 233.5 |
| -12 | 2442955 | 1976-06-25 | 233.93 |
| -11 | 2443190 | 1977-02-15 | 233.86 |
| -10 | 2443418 | 1977-10-01 | 232.65 |
| -9 | 2443646 | 1978-05-17 | 231.79 |
| -8 | 2443890 | 1979-01-16 | 230.99 |
| -7 | 2444115 | 1979-08-29 | 231.28 |
| -6 | 2444348 | 1980-04-18 | 231.36 |
| -5 | 2444574 | 1980-11-30 | 229.58 |
| -4 | 2444805 | 1981-07-19 | 227.93 |
| -3 | 2445041 | 1982-03-12 | 227.28 |
| -2 | 2445262 | 1982-10-19 | 227.49 |
| -1 | 2445488 | 1983-06-02 | 228.14 |
| 0 | 2445708 | 1984-01-08 | 227.22 |
| 1 | 2445937 | 1984-08-24 | 227 |
| 2 | 2446170 | 1985-04-14 | 228.21 |
| 3 | 2446403 | 1985-12-03 | 229.21 |
| 4 | 2446624 | 1986-07-12 | 230 |
| 5 | 2446857 | 1987-03-02 | 229.87 |
| 6 | 2447088 | 1987-10-19 | 229.79 |
| 7 | 2447317 | 1988-06-04 | 230.49 |
| 8 | 2447548 | 1989-01-21 | 231.07 |
| 9 | 2447777 | 1989-09-07 | 230.93 |
| 10 | 2448013 | 1990-05-01 | 231.22 |
| 11 | 2448241 | 1990-12-15 | 231.79 |
| 12 | 2448475 | 1991-08-06 | 231.21 |
| 13 | 2448703 | 1992-03-21 | 231.49 |
| 14 | 2448939 | 1992-11-12 | 232.43 |
| 15 | 2449171 | 1993-07-02 | 232.29 |
| 16 | 2449391 | 1994-02-07 | 232.57 |
| 17 | 2449640 | 1994-10-14 | 233.07 |
| 18 | 2449868 | 1995-05-30 | 232.42 |
| 19 | 2450100 | 1996-01-17 | 233.22 |
| 20 | 2450334 | 1996-09-07 | 233.15 |
| 21 | 2450571 | 1997-05-02 | 232.29 |
| 22 | 2450793 | 1997-12-10 | 232.85 |
| 23 | 2451034 | 1998-08-08 | 231.99 |
| 24 | 2451261 | 1999-03-23 | 231.36 |
| 25 | 2451499 | 1999-11-16 | 231.72 |
| 26 | 2451729 | 2000-07-03 | 231.36 |
| 27 | 2451953 | 2001-02-12 | 231.35 |
| 28 | 2452191 | 2001-10-08 | 231.14 |
| 29 | 2452417 | 2002-05-22 | 230.43 |
| 30 | 2452649 | 2003-01-09 | 230.94 |
| 31 | 2452885 | 2003-09-02 | 230.72 |
| 32 | 2453111 | 2004-04-15 | 230.64 |
| 33 | 2453343 | 2004-12-03 | 231.35 |
| 34 | 2453572 | 2005-07-20 | 230.57 |
| 35 | 2453802 | 2006-03-07 | 230.72 |
| 36 | 2454035 | 2006-10-26 | 232.22 |
| 37 | 2454270 | 2007-06-18 | 232.42 |
| 38 | 2454492 | 2008-01-26 | 232.14 |
| 39 | 2454734 | 2008-09-24 | 231.86 |
| 40 | 2454971 | 2009-05-19 | 231.15 |
| 41 | 2455198 | 2010-01-01 | 230.93 |
| 42 | 2455426 | 2010-08-17 | 230.07 |
| 43 | 2455657 | 2011-04-05 | 228.85 |
| 44 | 2455884 | 2011-11-18 | 229.5 |
| 45 | 2456111 | 2012-07-02 | 230.22 |
| 46 | 2456336 | 2013-02-12 | 230.29 |
| 47 | 2456573 | 2013-10-07 | 230.14 |
| 48 | 2456809 | 2014-05-31 | 230.49 |
| 49 | 2457038 | 2015-01-15 | 232.07 |
| 50 | 2457269 | 2015-09-03 | 232.15 |
| 51 | 2457494 | 2016-04-15 | 230.79 |
| 52 | 2457728 | 2016-12-05 | 231.64 |
| 53 | 2457968 | 2017-08-02 | 232.78 |
| 54 | 2458191 | 2018-03-13 | 233.5 |
| 55 | 2458422 | 2018-10-30 | 233.94 |
| 56 | 2458668 | 2019-07-03 | 233.72 |
| 57 | 2458898 | 2020-02-18 | 233.99 |
| 58 | 2459134 | 2020-10-11 | 234.92 |
| 59 | 2459363 | 2021-05-28 | 234.57 |
| 60 | 2459605 | 2022-01-25 | 233.35 |
| 61 | 2459830 | 2022-09-07 | 234.02 |
| 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. |