| E | O (JD) | O (dat) | Period |
| -163 | 2399799 | 1858-04-29 | 241.92 |
| -160 | 2400525 | 1860-04-24 | 241.81 |
| -157 | 2401235 | 1862-04-04 | 241.73 |
| -155 | 2401736 | 1863-08-18 | 241.86 |
| -154 | 2401973 | 1864-04-11 | 242.1 |
| -152 | 2402461 | 1865-08-12 | 242.71 |
| -151 | 2402697 | 1866-04-05 | 242.8 |
| -148 | 2403422 | 1868-03-30 | 242.84 |
| -145 | 2404152 | 1870-03-30 | 242.75 |
| -142 | 2404884 | 1872-03-31 | 242.66 |
| -133 | 2407083 | 1878-04-08 | 242.64 |
| -131 | 2407553 | 1879-07-22 | 242.63 |
| -130 | 2407793 | 1880-03-18 | 242.45 |
| -107 | 2413382 | 1895-07-07 | 242.33 |
| -104 | 2414097 | 1897-06-21 | 242.17 |
| -103 | 2414345 | 1898-02-24 | 242.17 |
| -101 | 2414827 | 1899-06-21 | 242.48 |
| -98 | 2415533 | 1901-05-28 | 242.14 |
| -95 | 2416273 | 1903-06-07 | 241.76 |
| -92 | 2416993 | 1905-05-27 | 241.9 |
| -91 | 2417260 | 1906-02-18 | 242 |
| -89 | 2417756 | 1907-06-29 | 241.81 |
| -80 | 2419886 | 1913-04-28 | 241.8 |
| -75 | 2421115 | 1916-09-08 | 241.45 |
| -74 | 2421358 | 1917-05-09 | 241.28 |
| -72 | 2421850 | 1918-09-13 | 240.97 |
| -71 | 2422064 | 1919-04-15 | 240.77 |
| -70 | 2422319 | 1919-12-26 | 241.94 |
| -69 | 2422560 | 1920-08-23 | 240.09 |
| -68 | 2422806 | 1921-04-26 | 240.25 |
| -67 | 2423054 | 1921-12-30 | 240.09 |
| -66 | 2423271 | 1922-08-04 | 240.63 |
| -65 | 2423523 | 1923-04-13 | 240.01 |
| -63 | 2423992 | 1924-07-25 | 240.7 |
| -62 | 2424248 | 1925-04-07 | 240.82 |
| -60 | 2424720 | 1926-07-23 | 241.34 |
| -57 | 2425446 | 1928-07-18 | 242.05 |
| -56 | 2425680 | 1929-03-09 | 242.01 |
| -55 | 2425947 | 1929-12-01 | 242.1 |
| -54 | 2426174 | 1930-07-16 | 242.05 |
| -53 | 2426425 | 1931-03-24 | 242.48 |
| -51 | 2426905 | 1932-07-16 | 242.89 |
| -50 | 2427146 | 1933-03-14 | 242.87 |
| -48 | 2427622 | 1934-07-03 | 242.69 |
| -47 | 2427876 | 1935-03-14 | 242.66 |
| -45 | 2428358 | 1936-07-08 | 242.82 |
| -44 | 2428614 | 1937-03-21 | 243.07 |
| -42 | 2429091 | 1938-07-11 | 242.83 |
| -41 | 2429339 | 1939-03-16 | 242.92 |
| -39 | 2429806 | 1940-06-25 | 242.41 |
| -38 | 2430068 | 1941-03-14 | 242.16 |
| -36 | 2430548 | 1942-07-07 | 241.42 |
| -33 | 2431268 | 1944-06-26 | 241.49 |
| -30 | 2432006 | 1946-07-04 | 241.13 |
| -27 | 2432723 | 1948-06-20 | 240.92 |
| -26 | 2432962 | 1949-02-14 | 240.28 |
| -25 | 2433181 | 1949-09-21 | 240.12 |
| -24 | 2433443 | 1950-06-10 | 239.8 |
| -23 | 2433669 | 1951-01-22 | 240.27 |
| -22 | 2433910 | 1951-09-20 | 240.76 |
| -21 | 2434155 | 1952-05-22 | 241.22 |
| -20 | 2434395 | 1953-01-17 | 241.45 |
| -19 | 2434636 | 1953-09-15 | 240.73 |
| -18 | 2434903 | 1954-06-09 | 241.25 |
| -17 | 2435116 | 1955-01-08 | 240.64 |
| -16 | 2435361 | 1955-09-10 | 239.95 |
| -15 | 2435597 | 1956-05-03 | 239.85 |
| -14 | 2435840 | 1957-01-01 | 239.45 |
| -13 | 2436085 | 1957-09-03 | 239.19 |
| -12 | 2436317 | 1958-04-23 | 240.26 |
| -11 | 2436556 | 1958-12-18 | 240.16 |
| -10 | 2436804 | 1959-08-23 | 240.42 |
| -9 | 2437039 | 1960-04-14 | 240.46 |
| -8 | 2437282 | 1960-12-13 | 240.27 |
| -7 | 2437520 | 1961-08-08 | 240.77 |
| -6 | 2437762 | 1962-04-07 | 240.95 |
| -5 | 2438005 | 1962-12-06 | 241.12 |
| -4 | 2438246 | 1963-08-04 | 241.37 |
| -3 | 2438479 | 1964-03-24 | 241.29 |
| -2 | 2438728 | 1964-11-28 | 241.45 |
| -1 | 2438971 | 1965-07-29 | 241.37 |
| 0 | 2439215 | 1966-03-30 | 241.27 |
| 1 | 2439451 | 1966-11-21 | 241.49 |
| 2 | 2439691 | 1967-07-19 | 241.85 |
| 3 | 2439935 | 1968-03-19 | 241.05 |
| 4 | 2440175 | 1968-11-14 | 241.2 |
| 5 | 2440415 | 1969-07-12 | 241.35 |
| 6 | 2440661 | 1970-03-15 | 241.82 |
| 7 | 2440906 | 1970-11-15 | 241.69 |
| 8 | 2441133 | 1971-06-30 | 241.79 |
| 9 | 2441386 | 1972-03-09 | 241.72 |
| 10 | 2441626 | 1972-11-04 | 241.87 |
| 11 | 2441871 | 1973-07-07 | 241.59 |
| 12 | 2442106 | 1974-02-27 | 242.11 |
| 13 | 2442354 | 1974-11-02 | 242.53 |
| 14 | 2442590 | 1975-06-26 | 242.16 |
| 15 | 2442838 | 1976-02-29 | 242.25 |
| 16 | 2443073 | 1976-10-21 | 242.29 |
| 17 | 2443327 | 1977-07-02 | 242.34 |
| 18 | 2443564 | 1978-02-24 | 242.04 |
| 19 | 2443806 | 1978-10-24 | 241.95 |
| 20 | 2444047 | 1979-06-22 | 241.71 |
| 21 | 2444290 | 1980-02-20 | 241.76 |
| 22 | 2444529 | 1980-10-16 | 241.18 |
| 23 | 2444771 | 1981-06-15 | 241.31 |
| 24 | 2445011 | 1982-02-10 | 242.23 |
| 25 | 2445256 | 1982-10-13 | 242.88 |
| 26 | 2445498 | 1983-06-12 | 243.56 |
| 27 | 2445734 | 1984-02-03 | 244.56 |
| 28 | 2445977 | 1984-10-03 | 245.59 |
| 29 | 2446240 | 1985-06-23 | 246.11 |
| 30 | 2446479 | 1986-02-17 | 246.36 |
| 31 | 2446725 | 1986-10-21 | 246.76 |
| 32 | 2446976 | 1987-06-29 | 246.47 |
| 33 | 2447227 | 1988-03-06 | 244.82 |
| 34 | 2447465 | 1988-10-30 | 243.41 |
| 35 | 2447710 | 1989-07-02 | 242.72 |
| 36 | 2447959 | 1990-03-08 | 242.11 |
| 37 | 2448194 | 1990-10-29 | 241.42 |
| 38 | 2448420 | 1991-06-12 | 240.94 |
| 39 | 2448671 | 1992-02-18 | 241.6 |
| 40 | 2448910 | 1992-10-14 | 242.11 |
| 41 | 2449159 | 1993-06-20 | 242.56 |
| 42 | 2449398 | 1994-02-14 | 243.65 |
| 43 | 2449636 | 1994-10-10 | 244.33 |
| 44 | 2449892 | 1995-06-23 | 244.1 |
| 45 | 2450136 | 1996-02-22 | 244.63 |
| 46 | 2450375 | 1996-10-18 | 244.74 |
| 47 | 2450623 | 1997-06-23 | 244.72 |
| 48 | 2450865 | 1998-02-20 | 244.91 |
| 49 | 2451108 | 1998-10-21 | 244.12 |
| 50 | 2451361 | 1999-07-01 | 244.38 |
| 51 | 2451603 | 2000-02-28 | 244.7 |
| 52 | 2451840 | 2000-10-22 | 244.37 |
| 53 | 2452094 | 2001-07-03 | 244.86 |
| 54 | 2452326 | 2002-02-20 | 245.12 |
| 55 | 2452580 | 2002-11-01 | 245.04 |
| 56 | 2452826 | 2003-07-05 | 244.64 |
| 57 | 2453063 | 2004-02-27 | 244.9 |
| 58 | 2453321 | 2004-11-11 | 244.4 |
| 59 | 2453565 | 2005-07-13 | 244.11 |
| 60 | 2453806 | 2006-03-11 | 243.43 |
| 61 | 2454035 | 2006-10-26 | 242.95 |
| 62 | 2454294 | 2007-07-12 | 242.4 |
| 63 | 2454531 | 2008-03-05 | 241.8 |
| 64 | 2454769 | 2008-10-29 | 241.88 |
| 65 | 2455017 | 2009-07-04 | 241.99 |
| 66 | 2455255 | 2010-02-27 | 242.5 |
| 67 | 2455493 | 2010-10-23 | 242.3 |
| 68 | 2455741 | 2011-06-28 | 242.85 |
| 69 | 2455982 | 2012-02-24 | 243.12 |
| 70 | 2456222 | 2012-10-21 | 243.28 |
| 71 | 2456473 | 2013-06-29 | 242.95 |
| 72 | 2456716 | 2014-02-27 | 242.83 |
| 73 | 2456958 | 2014-10-27 | 242.2 |
| 74 | 2457200 | 2015-06-26 | 241.76 |
| 75 | 2457446 | 2016-02-27 | 241.8 |
| 76 | 2457673 | 2016-10-11 | 241.42 |
| 77 | 2457923 | 2017-06-18 | 241.15 |
| 78 | 2458160 | 2018-02-10 | 240.81 |
| 79 | 2458400 | 2018-10-08 | 240.88 |
| 80 | 2458653 | 2019-06-18 | 240.95 |
| 81 | 2458890 | 2020-02-10 | 241.36 |
| 82 | 2459125 | 2020-10-02 | 240.9 |
| 83 | 2459362 | 2021-05-27 | 240.98 |
| 84 | 2459610 | 2022-01-30 | 240.57 |
| 85 | 2459850 | 2022-09-27 | 239.49 |
| 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. |