| E | O (JD) | O (dat) | Period |
| -142 | 2407989 | 1880-09-30 | 218.56 |
| -134 | 2409750 | 1885-07-27 | 218.27 |
| -132 | 2410165 | 1886-09-15 | 218.03 |
| -125 | 2411720 | 1890-12-18 | 218.51 |
| -120 | 2412802 | 1893-12-04 | 218.2 |
| -117 | 2413449 | 1895-09-12 | 217.94 |
| -115 | 2413888 | 1896-11-24 | 217.98 |
| -112 | 2414549 | 1898-09-16 | 218.03 |
| -110 | 2414973 | 1899-11-14 | 218.26 |
| -102 | 2416711 | 1904-08-18 | 218.26 |
| -95 | 2418253 | 1908-11-07 | 218.02 |
| -75 | 2422621 | 1920-10-23 | 218.17 |
| -73 | 2423055 | 1921-12-31 | 218.81 |
| -72 | 2423271 | 1922-08-04 | 218.73 |
| -71 | 2423480 | 1923-03-01 | 218.14 |
| -70 | 2423714 | 1923-10-21 | 218.47 |
| -69 | 2423943 | 1924-06-06 | 218.35 |
| -68 | 2424145 | 1924-12-25 | 218.58 |
| -67 | 2424364 | 1925-08-01 | 218.43 |
| -66 | 2424589 | 1926-03-14 | 216.5 |
| -65 | 2424794 | 1926-10-05 | 217 |
| -64 | 2425017 | 1927-05-16 | 218.43 |
| -63 | 2425235 | 1927-12-20 | 217.29 |
| -62 | 2425453 | 1928-07-25 | 216.29 |
| -61 | 2425673 | 1929-03-02 | 216.28 |
| -60 | 2425894 | 1929-10-09 | 216.07 |
| -59 | 2426101 | 1930-05-04 | 217.31 |
| -58 | 2426310 | 1930-11-29 | 218.13 |
| -57 | 2426529 | 1931-07-06 | 217.13 |
| -55 | 2426964 | 1932-09-13 | 216.88 |
| -54 | 2427201 | 1933-05-08 | 218 |
| -53 | 2427415 | 1933-12-08 | 218.65 |
| -52 | 2427626 | 1934-07-07 | 219.35 |
| -50 | 2428056 | 1935-09-10 | 219.4 |
| -48 | 2428497 | 1936-11-24 | 218.35 |
| -47 | 2428715 | 1937-06-30 | 218.15 |
| -45 | 2429165 | 1938-09-23 | 218.3 |
| -44 | 2429388 | 1939-05-04 | 217.9 |
| -43 | 2429595 | 1939-11-27 | 217.5 |
| -42 | 2429809 | 1940-06-28 | 217.44 |
| -40 | 2430239 | 1941-09-01 | 217.8 |
| -38 | 2430672 | 1942-11-08 | 218.57 |
| -35 | 2431325 | 1944-08-22 | 218.83 |
| -30 | 2432426 | 1947-08-28 | 219.1 |
| -29 | 2432661 | 1948-04-19 | 219.96 |
| -28 | 2432879 | 1948-11-23 | 220.29 |
| -27 | 2433090 | 1949-06-22 | 219.95 |
| -26 | 2433312 | 1950-01-30 | 218.71 |
| -25 | 2433538 | 1950-09-13 | 217.64 |
| -24 | 2433746 | 1951-04-09 | 218.43 |
| -23 | 2433964 | 1951-11-13 | 219.08 |
| -22 | 2434185 | 1952-06-21 | 217.93 |
| -21 | 2434402 | 1953-01-24 | 217.64 |
| -20 | 2434625 | 1953-09-04 | 218.85 |
| -19 | 2434844 | 1954-04-11 | 218.71 |
| -18 | 2435057 | 1954-11-10 | 218.08 |
| -17 | 2435274 | 1955-06-15 | 217.86 |
| -16 | 2435500 | 1956-01-27 | 217.78 |
| -15 | 2435711 | 1956-08-25 | 218.21 |
| -14 | 2435929 | 1957-03-31 | 218.57 |
| -13 | 2436148 | 1957-11-05 | 218.22 |
| -12 | 2436370 | 1958-06-15 | 218.43 |
| -11 | 2436586 | 1959-01-17 | 218.93 |
| -10 | 2436805 | 1959-08-24 | 218.78 |
| -9 | 2437024 | 1960-03-30 | 218.14 |
| -8 | 2437245 | 1960-11-06 | 217.72 |
| -7 | 2437460 | 1961-06-09 | 217.65 |
| -6 | 2437680 | 1962-01-15 | 217.35 |
| -5 | 2437892 | 1962-08-15 | 217.28 |
| -4 | 2438112 | 1963-03-23 | 217.07 |
| -3 | 2438326 | 1963-10-23 | 217.15 |
| -2 | 2438546 | 1964-05-30 | 217.58 |
| -1 | 2438765 | 1965-01-04 | 217.78 |
| 0 | 2438979 | 1965-08-06 | 218.07 |
| 1 | 2439201 | 1966-03-16 | 218.78 |
| 2 | 2439417 | 1966-10-18 | 219 |
| 3 | 2439636 | 1967-05-25 | 218.5 |
| 4 | 2439855 | 1967-12-30 | 217.43 |
| 5 | 2440080 | 1968-08-11 | 216.93 |
| 6 | 2440297 | 1969-03-16 | 217.64 |
| 7 | 2440506 | 1969-10-11 | 218.08 |
| 8 | 2440718 | 1970-05-11 | 217.22 |
| 9 | 2440937 | 1970-12-16 | 216.64 |
| 10 | 2441163 | 1971-07-30 | 217.57 |
| 11 | 2441381 | 1972-03-04 | 218.35 |
| 12 | 2441595 | 1972-10-04 | 218.15 |
| 13 | 2441815 | 1973-05-12 | 218.29 |
| 14 | 2442034 | 1973-12-17 | 218.64 |
| 15 | 2442247 | 1974-07-18 | 218.43 |
| 16 | 2442462 | 1975-02-18 | 218.14 |
| 17 | 2442694 | 1975-10-08 | 218.15 |
| 18 | 2442911 | 1976-05-12 | 218.36 |
| 19 | 2443123 | 1976-12-10 | 218.85 |
| 20 | 2443341 | 1977-07-16 | 218.35 |
| 21 | 2443562 | 1978-02-22 | 217.35 |
| 22 | 2443776 | 1978-09-24 | 217.43 |
| 23 | 2443997 | 1979-05-03 | 217.29 |
| 24 | 2444216 | 1979-12-08 | 217 |
| 25 | 2444432 | 1980-07-11 | 216.64 |
| 26 | 2444646 | 1981-02-10 | 215.85 |
| 27 | 2444860 | 1981-09-12 | 216.22 |
| 28 | 2445081 | 1982-04-21 | 216.15 |
| 29 | 2445290 | 1982-11-16 | 215.43 |
| 30 | 2445505 | 1983-06-19 | 216.35 |
| 31 | 2445735 | 1984-02-04 | 216.21 |
| 32 | 2445939 | 1984-08-26 | 216.72 |
| 33 | 2446155 | 1985-03-30 | 218.5 |
| 34 | 2446380 | 1985-11-10 | 218.07 |
| 35 | 2446588 | 1986-06-06 | 217.85 |
| 36 | 2446817 | 1987-01-21 | 218.07 |
| 37 | 2447037 | 1987-08-29 | 217.5 |
| 38 | 2447256 | 1988-04-04 | 217.86 |
| 39 | 2447468 | 1988-11-02 | 217.85 |
| 40 | 2447679 | 1989-06-01 | 217 |
| 41 | 2447901 | 1990-01-09 | 216.64 |
| 42 | 2448117 | 1990-08-13 | 217 |
| 43 | 2448338 | 1991-03-22 | 217.93 |
| 44 | 2448554 | 1991-10-24 | 218.28 |
| 45 | 2448772 | 1992-05-29 | 217.57 |
| 46 | 2448990 | 1993-01-02 | 217 |
| 47 | 2449208 | 1993-08-08 | 217.29 |
| 48 | 2449428 | 1994-03-16 | 217.93 |
| 49 | 2449636 | 1994-10-10 | 218.85 |
| 50 | 2449857 | 1995-05-19 | 218.85 |
| 51 | 2450077 | 1995-12-25 | 218.14 |
| 52 | 2450300 | 1996-08-04 | 218.79 |
| 53 | 2450526 | 1997-03-18 | 218.65 |
| 54 | 2450736 | 1997-10-14 | 217.21 |
| 55 | 2450954 | 1998-05-20 | 216.5 |
| 56 | 2451173 | 1998-12-25 | 215.35 |
| 57 | 2451381 | 1999-07-21 | 215.15 |
| 58 | 2451594 | 2000-02-19 | 216.15 |
| 59 | 2451814 | 2000-09-26 | 217.07 |
| 60 | 2452027 | 2001-04-27 | 218.14 |
| 61 | 2452247 | 2001-12-03 | 219.21 |
| 62 | 2452469 | 2002-07-13 | 220.22 |
| 63 | 2452697 | 2003-02-26 | 220.15 |
| 64 | 2452911 | 2003-09-28 | 219.64 |
| 65 | 2453133 | 2004-05-07 | 220.14 |
| 66 | 2453358 | 2004-12-18 | 219.28 |
| 67 | 2453565 | 2005-07-13 | 218.29 |
| 68 | 2453784 | 2006-02-17 | 218.29 |
| 69 | 2454014 | 2006-10-05 | 217.14 |
| 70 | 2454222 | 2007-05-01 | 216.93 |
| 71 | 2454442 | 2007-12-07 | 217.21 |
| 72 | 2454658 | 2008-07-10 | 216.22 |
| 73 | 2454873 | 2009-02-10 | 216.43 |
| 74 | 2455087 | 2009-09-12 | 217.14 |
| 75 | 2455303 | 2010-04-16 | 217.35 |
| 76 | 2455522 | 2010-11-21 | 217.07 |
| 77 | 2455744 | 2011-07-01 | 217.72 |
| 78 | 2455960 | 2012-02-02 | 218.65 |
| 79 | 2456183 | 2012-09-12 | 218.21 |
| 80 | 2456387 | 2013-04-04 | 217.57 |
| 81 | 2456621 | 2013-11-24 | 216.93 |
| 82 | 2456830 | 2014-06-21 | 216.5 |
| 83 | 2457050 | 2015-01-27 | 216.43 |
| 84 | 2457262 | 2015-08-27 | 215.14 |
| 85 | 2457479 | 2016-03-31 | 214.43 |
| 86 | 2457695 | 2016-11-02 | 215.73 |
| 87 | 2457905 | 2017-05-31 | 216.56 |
| 88 | 2458115 | 2017-12-27 | 216.76 |
| 89 | 2458338 | 2018-08-07 | 216.31 |
| 91 | 2458778 | 2019-10-21 | 216.55 |
| 92 | 2458999 | 2020-05-29 | 218.33 |
| 94 | 2459427 | 2021-07-31 | 218.69 |
| 96 | 2459857 | 2022-10-04 | 218.19 |
| 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. |