| E | O (JD) | O (dat) | Period |
| -108 | 2415430 | 1901-02-14 | 252.65 |
| -106 | 2415924 | 1902-06-23 | 252.52 |
| -103 | 2416673 | 1904-07-11 | 251.43 |
| -102 | 2416926 | 1905-03-21 | 250.46 |
| -99 | 2417691 | 1907-04-25 | 249.88 |
| -98 | 2417942 | 1908-01-01 | 250 |
| -97 | 2418183 | 1908-08-29 | 251.05 |
| -96 | 2418436 | 1909-05-09 | 250.34 |
| -94 | 2418915 | 1910-08-31 | 248.57 |
| -93 | 2419182 | 1911-05-25 | 247.5 |
| -92 | 2419438 | 1912-02-05 | 247.15 |
| -91 | 2419685 | 1912-10-09 | 249.21 |
| -90 | 2419925 | 1913-06-06 | 251 |
| -87 | 2420655 | 1915-06-06 | 250.72 |
| -86 | 2420907 | 1916-02-13 | 250.05 |
| -85 | 2421179 | 1916-11-11 | 249.78 |
| -84 | 2421436 | 1917-07-26 | 252.94 |
| -83 | 2421697 | 1918-04-13 | 255.49 |
| -82 | 2421927 | 1918-11-29 | 252.78 |
| -81 | 2422179 | 1919-08-08 | 250.43 |
| -80 | 2422448 | 1920-05-03 | 249.72 |
| -79 | 2422691 | 1921-01-01 | 250.36 |
| -78 | 2422934 | 1921-09-01 | 251.99 |
| -77 | 2423187 | 1922-05-12 | 250.78 |
| -76 | 2423442 | 1923-01-22 | 249.43 |
| -75 | 2423687 | 1923-09-24 | 251.01 |
| -74 | 2423947 | 1924-06-10 | 252.79 |
| -73 | 2424191 | 1925-02-09 | 251.66 |
| -72 | 2424440 | 1925-10-16 | 251.75 |
| -71 | 2424699 | 1926-07-02 | 251.76 |
| -70 | 2424961 | 1927-03-21 | 251.07 |
| -68 | 2425443 | 1928-07-15 | 252.31 |
| -67 | 2425714 | 1929-04-12 | 251.05 |
| -66 | 2425948 | 1929-12-02 | 250 |
| -65 | 2426207 | 1930-08-18 | 251.41 |
| -64 | 2426461 | 1931-04-29 | 250.29 |
| -63 | 2426695 | 1931-12-19 | 249.49 |
| -62 | 2426965 | 1932-09-14 | 250.99 |
| -61 | 2427210 | 1933-05-17 | 249.93 |
| -60 | 2427451 | 1934-01-13 | 250.25 |
| -59 | 2427704 | 1934-09-23 | 249.69 |
| -58 | 2427965 | 1935-06-11 | 248.3 |
| -56 | 2428452 | 1936-10-10 | 249.25 |
| -55 | 2428708 | 1937-06-23 | 249.69 |
| -54 | 2428947 | 1938-02-17 | 249 |
| -53 | 2429201 | 1938-10-29 | 249.4 |
| -52 | 2429448 | 1939-07-03 | 249.21 |
| -51 | 2429702 | 1940-03-13 | 249.67 |
| -50 | 2429951 | 1940-11-17 | 251.07 |
| -49 | 2430207 | 1941-07-31 | 250.31 |
| -48 | 2430442 | 1942-03-23 | 250.06 |
| -46 | 2430958 | 1943-08-21 | 250.69 |
| -45 | 2431207 | 1944-04-26 | 250.47 |
| -44 | 2431447 | 1944-12-22 | 250.89 |
| -43 | 2431704 | 1945-09-05 | 250.7 |
| -42 | 2431960 | 1946-05-19 | 249.69 |
| -40 | 2432456 | 1947-09-27 | 250.94 |
| -39 | 2432709 | 1948-06-06 | 251.38 |
| -38 | 2432953 | 1949-02-05 | 250.5 |
| -37 | 2433207 | 1949-10-17 | 251.33 |
| -36 | 2433462 | 1950-06-29 | 253 |
| -35 | 2433711 | 1951-03-05 | 254.01 |
| -34 | 2433961 | 1951-11-10 | 254.07 |
| -33 | 2434225 | 1952-07-31 | 253.78 |
| -32 | 2434482 | 1953-04-14 | 254.35 |
| -31 | 2434736 | 1953-12-24 | 253.43 |
| -30 | 2434981 | 1954-08-26 | 251.51 |
| -29 | 2435241 | 1955-05-13 | 250.36 |
| -28 | 2435493 | 1956-01-20 | 249.64 |
| -27 | 2435727 | 1956-09-10 | 249.57 |
| -26 | 2435980 | 1957-05-21 | 249.22 |
| -25 | 2436232 | 1958-01-28 | 248.37 |
| -24 | 2436481 | 1958-10-04 | 248.79 |
| -23 | 2436730 | 1959-06-10 | 249.85 |
| -22 | 2436981 | 1960-02-16 | 250.07 |
| -21 | 2437230 | 1960-10-22 | 249.64 |
| -20 | 2437473 | 1961-06-22 | 249.72 |
| -19 | 2437732 | 1962-03-08 | 250.43 |
| -18 | 2437981 | 1962-11-12 | 250.99 |
| -17 | 2438227 | 1963-07-16 | 251.78 |
| -16 | 2438480 | 1964-03-25 | 251.93 |
| -15 | 2438737 | 1964-12-07 | 251.01 |
| -14 | 2438988 | 1965-08-15 | 250.79 |
| -13 | 2439240 | 1966-04-24 | 251.21 |
| -12 | 2439492 | 1967-01-01 | 250.64 |
| -11 | 2439735 | 1967-09-01 | 249.86 |
| -10 | 2439984 | 1968-05-07 | 249.29 |
| -9 | 2440240 | 1969-01-18 | 248.72 |
| -8 | 2440486 | 1969-09-21 | 249.35 |
| -7 | 2440737 | 1970-05-30 | 249.85 |
| -6 | 2440981 | 1971-01-29 | 249.72 |
| -5 | 2441233 | 1971-10-08 | 249.87 |
| -4 | 2441485 | 1972-06-16 | 250.14 |
| -3 | 2441732 | 1973-02-18 | 250.78 |
| -2 | 2441988 | 1973-11-01 | 251.21 |
| -1 | 2442236 | 1974-07-07 | 251.36 |
| 0 | 2442489 | 1975-03-17 | 252.72 |
| 1 | 2442740 | 1975-11-23 | 252.86 |
| 2 | 2442991 | 1976-07-31 | 251.92 |
| 3 | 2443246 | 1977-04-12 | 251.99 |
| 4 | 2443509 | 1977-12-31 | 252.14 |
| 5 | 2443751 | 1978-08-30 | 252.65 |
| 6 | 2444000 | 1979-05-06 | 252.36 |
| 7 | 2444253 | 1980-01-14 | 250.49 |
| 8 | 2444506 | 1980-09-23 | 250.07 |
| 9 | 2444762 | 1981-06-06 | 251 |
| 10 | 2445008 | 1982-02-07 | 250.87 |
| 11 | 2445254 | 1982-10-11 | 250.57 |
| 12 | 2445507 | 1983-06-21 | 249.99 |
| 13 | 2445758 | 1984-02-27 | 249.42 |
| 14 | 2446007 | 1984-11-02 | 250.57 |
| 15 | 2446260 | 1985-07-13 | 251.37 |
| 16 | 2446508 | 1986-03-18 | 251 |
| 17 | 2446754 | 1986-11-19 | 251.28 |
| 18 | 2447016 | 1987-08-08 | 251.49 |
| 19 | 2447264 | 1988-04-12 | 251.57 |
| 20 | 2447515 | 1988-12-19 | 252.29 |
| 21 | 2447768 | 1989-08-29 | 252.22 |
| 22 | 2448020 | 1990-05-08 | 251.57 |
| 23 | 2448270 | 1991-01-13 | 251.42 |
| 24 | 2448524 | 1991-09-24 | 251.43 |
| 25 | 2448777 | 1992-06-03 | 251.58 |
| 26 | 2449025 | 1993-02-06 | 252.07 |
| 27 | 2449274 | 1993-10-13 | 252.07 |
| 28 | 2449529 | 1994-06-25 | 251.28 |
| 29 | 2449781 | 1995-03-04 | 251.29 |
| 30 | 2450038 | 1995-11-16 | 251.65 |
| 31 | 2450285 | 1996-07-20 | 251.14 |
| 32 | 2450534 | 1997-03-26 | 250.71 |
| 33 | 2450786 | 1997-12-03 | 250.99 |
| 34 | 2451036 | 1998-08-10 | 251.36 |
| 35 | 2451283 | 1999-04-14 | 251.94 |
| 36 | 2451537 | 1999-12-24 | 251.86 |
| 37 | 2451796 | 2000-09-08 | 251.85 |
| 38 | 2452046 | 2001-05-16 | 253.14 |
| 39 | 2452300 | 2002-01-25 | 253.29 |
| 40 | 2452546 | 2002-09-28 | 251.87 |
| 41 | 2452802 | 2003-06-11 | 251.43 |
| 42 | 2453061 | 2004-02-25 | 251.14 |
| 43 | 2453305 | 2004-10-26 | 250.71 |
| 44 | 2453554 | 2005-07-02 | 250.79 |
| 45 | 2453808 | 2006-03-13 | 250.01 |
| 46 | 2454054 | 2006-11-14 | 249.72 |
| 47 | 2454302 | 2007-07-20 | 250.35 |
| 48 | 2454557 | 2008-03-31 | 250.57 |
| 49 | 2454806 | 2008-12-05 | 251 |
| 50 | 2455056 | 2009-08-12 | 251.51 |
| 51 | 2455308 | 2010-04-21 | 251.79 |
| 52 | 2455562 | 2010-12-31 | 251.42 |
| 53 | 2455814 | 2011-09-09 | 251.07 |
| 54 | 2456063 | 2012-05-15 | 251.36 |
| 55 | 2456321 | 2013-01-28 | 250.65 |
| 56 | 2456562 | 2013-09-26 | 250.14 |
| 57 | 2456815 | 2014-06-06 | 250.92 |
| 58 | 2457068 | 2015-02-14 | 250.21 |
| 59 | 2457311 | 2015-10-15 | 249.43 |
| 60 | 2457567 | 2016-06-27 | 250.15 |
| 61 | 2457823 | 2017-03-10 | 250.14 |
| 62 | 2458064 | 2017-11-06 | 249.85 |
| 63 | 2458311 | 2018-07-11 | 249.57 |
| 64 | 2458568 | 2019-03-25 | 248.93 |
| 65 | 2458817 | 2019-11-29 | 249.29 |
| 66 | 2459060 | 2020-07-29 | 250.29 |
| 67 | 2459312 | 2021-04-07 | 249.62 |
| 68 | 2459563 | 2021-12-14 | 248.25 |
| 69 | 2459814 | 2022-08-22 | 248.1 |
| 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. |