| E | O (JD) | O (dat) | Period |
| -96 | 2415350 | 1900-11-26 | 279.84 |
| -95 | 2415620 | 1901-08-23 | 279.29 |
| -93 | 2416177 | 1903-03-03 | 278.86 |
| -92 | 2416463 | 1903-12-14 | 279.77 |
| -91 | 2416742 | 1904-09-18 | 281.19 |
| -90 | 2417018 | 1905-06-21 | 282.73 |
| -89 | 2417298 | 1906-03-28 | 281.93 |
| -88 | 2417591 | 1907-01-15 | 279.28 |
| -87 | 2417878 | 1907-10-29 | 279 |
| -86 | 2418160 | 1908-08-06 | 279.29 |
| -85 | 2418427 | 1909-04-30 | 277.79 |
| -84 | 2418688 | 1910-01-16 | 277.15 |
| -83 | 2418978 | 1910-11-02 | 276.5 |
| -82 | 2419248 | 1911-07-30 | 276.56 |
| -81 | 2419530 | 1912-05-07 | 278.84 |
| -80 | 2419819 | 1913-02-20 | 280.05 |
| -79 | 2420090 | 1913-11-18 | 280.33 |
| -76 | 2420922 | 1916-02-28 | 281.05 |
| -75 | 2421212 | 1916-12-14 | 280.33 |
| -74 | 2421495 | 1917-09-23 | 279.56 |
| -73 | 2421777 | 1918-07-02 | 280.5 |
| -72 | 2422060 | 1919-04-11 | 280.85 |
| -71 | 2422335 | 1920-01-11 | 280.36 |
| -70 | 2422606 | 1920-10-08 | 281 |
| -69 | 2422894 | 1921-07-23 | 281.57 |
| -68 | 2423172 | 1922-04-27 | 281.71 |
| -67 | 2423460 | 1923-02-09 | 282.07 |
| -66 | 2423746 | 1923-11-22 | 282.22 |
| -65 | 2424033 | 1924-09-04 | 282.29 |
| -64 | 2424306 | 1925-06-04 | 281.86 |
| -63 | 2424584 | 1926-03-09 | 280.42 |
| -62 | 2424867 | 1926-12-17 | 279.35 |
| -61 | 2425151 | 1927-09-27 | 279.43 |
| -60 | 2425427 | 1928-06-29 | 280.15 |
| -59 | 2425705 | 1929-04-03 | 279.07 |
| -58 | 2425985 | 1930-01-08 | 278 |
| -57 | 2426266 | 1930-10-16 | 278.35 |
| -56 | 2426546 | 1931-07-23 | 278.79 |
| -55 | 2426812 | 1932-04-14 | 278.93 |
| -54 | 2427098 | 1933-01-25 | 279.22 |
| -53 | 2427377 | 1933-10-31 | 279.35 |
| -52 | 2427658 | 1934-08-08 | 280 |
| -51 | 2427937 | 1935-05-14 | 279.15 |
| -50 | 2428223 | 1936-02-24 | 277.29 |
| -49 | 2428500 | 1936-11-27 | 277.07 |
| -48 | 2428778 | 1937-09-01 | 276.35 |
| -47 | 2429040 | 1938-05-21 | 274.64 |
| -46 | 2429317 | 1939-02-22 | 273.22 |
| -45 | 2429597 | 1939-11-29 | 273.86 |
| -44 | 2429867 | 1940-08-25 | 276.29 |
| -43 | 2430138 | 1941-05-23 | 277.5 |
| -42 | 2430410 | 1942-02-19 | 276.14 |
| -41 | 2430702 | 1942-12-08 | 275.72 |
| -40 | 2430984 | 1943-09-16 | 276.57 |
| -39 | 2431258 | 1944-06-16 | 276.57 |
| -38 | 2431522 | 1945-03-07 | 276.07 |
| -37 | 2431802 | 1945-12-12 | 275.78 |
| -36 | 2432075 | 1946-09-11 | 274.93 |
| -35 | 2432345 | 1947-06-08 | 274.93 |
| -34 | 2432632 | 1948-03-21 | 275.43 |
| -33 | 2432915 | 1948-12-29 | 275.64 |
| -32 | 2433176 | 1949-09-16 | 276.42 |
| -31 | 2433453 | 1950-06-20 | 276 |
| -30 | 2433727 | 1951-03-21 | 275.15 |
| -29 | 2434009 | 1951-12-28 | 275.93 |
| -28 | 2434281 | 1952-09-25 | 276.71 |
| -27 | 2434560 | 1953-07-01 | 277 |
| -26 | 2434839 | 1954-04-06 | 277.36 |
| -25 | 2435115 | 1955-01-07 | 278.72 |
| -24 | 2435388 | 1955-10-07 | 280.29 |
| -23 | 2435670 | 1956-07-15 | 280.07 |
| -22 | 2435949 | 1957-04-20 | 279.64 |
| -21 | 2436243 | 1958-02-08 | 280.79 |
| -20 | 2436522 | 1958-11-14 | 283.15 |
| -19 | 2436798 | 1959-08-17 | 285.07 |
| -18 | 2437071 | 1960-05-16 | 284.35 |
| -17 | 2437363 | 1961-03-04 | 283.28 |
| -16 | 2437659 | 1961-12-25 | 284.36 |
| -15 | 2437951 | 1962-10-13 | 285.5 |
| -14 | 2438222 | 1963-07-11 | 284.93 |
| -13 | 2438509 | 1964-04-23 | 281.92 |
| -12 | 2438792 | 1965-01-31 | 279.14 |
| -11 | 2439074 | 1965-11-09 | 280.22 |
| -10 | 2439349 | 1966-08-11 | 282.22 |
| -9 | 2439620 | 1967-05-09 | 281.57 |
| -8 | 2439898 | 1968-02-11 | 280.92 |
| -7 | 2440198 | 1968-12-07 | 281 |
| -6 | 2440484 | 1969-09-19 | 282.29 |
| -5 | 2440759 | 1970-06-21 | 283.57 |
| -4 | 2441040 | 1971-03-29 | 282.5 |
| -3 | 2441317 | 1971-12-31 | 280.64 |
| -2 | 2441604 | 1972-10-13 | 279.85 |
| -1 | 2441884 | 1973-07-20 | 279.72 |
| 0 | 2442167 | 1974-04-29 | 279.15 |
| 1 | 2442444 | 1975-01-31 | 278.79 |
| 2 | 2442717 | 1975-10-31 | 278.71 |
| 3 | 2442998 | 1976-08-07 | 277.71 |
| 4 | 2443267 | 1977-05-03 | 277.36 |
| 5 | 2443557 | 1978-02-17 | 277.57 |
| 6 | 2443833 | 1978-11-20 | 276.93 |
| 7 | 2444106 | 1979-08-20 | 277.07 |
| 8 | 2444388 | 1980-05-28 | 276.5 |
| 9 | 2444659 | 1981-02-23 | 275.29 |
| 10 | 2444933 | 1981-11-24 | 275.22 |
| 11 | 2445211 | 1982-08-29 | 275.29 |
| 12 | 2445484 | 1983-05-29 | 276.42 |
| 13 | 2445760 | 1984-02-29 | 277.64 |
| 14 | 2446032 | 1984-11-27 | 278.5 |
| 15 | 2446316 | 1985-09-07 | 279.79 |
| 16 | 2446601 | 1986-06-19 | 280.72 |
| 17 | 2446878 | 1987-03-23 | 281.64 |
| 18 | 2447165 | 1988-01-04 | 282.28 |
| 19 | 2447447 | 1988-10-12 | 282.65 |
| 20 | 2447727 | 1989-07-19 | 283.36 |
| 21 | 2448008 | 1990-04-26 | 283.15 |
| 22 | 2448292 | 1991-02-04 | 282.78 |
| 23 | 2448582 | 1991-11-21 | 282.85 |
| 24 | 2448864 | 1992-08-29 | 282.07 |
| 25 | 2449143 | 1993-06-04 | 281.86 |
| 26 | 2449428 | 1994-03-16 | 281 |
| 27 | 2449706 | 1994-12-19 | 279.42 |
| 28 | 2449978 | 1995-09-17 | 278.71 |
| 29 | 2450268 | 1996-07-03 | 278.22 |
| 30 | 2450540 | 1997-04-01 | 278.43 |
| 31 | 2450818 | 1998-01-04 | 278.57 |
| 32 | 2451091 | 1998-10-04 | 277.85 |
| 33 | 2451375 | 1999-07-15 | 277.64 |
| 34 | 2451657 | 2000-04-22 | 277.22 |
| 35 | 2451927 | 2001-01-17 | 276.15 |
| 36 | 2452209 | 2001-10-26 | 275.79 |
| 37 | 2452486 | 2002-07-30 | 275.64 |
| 38 | 2452753 | 2003-04-23 | 276.07 |
| 39 | 2453022 | 2004-01-17 | 276.07 |
| 40 | 2453305 | 2004-10-26 | 275 |
| 41 | 2453586 | 2005-08-03 | 276.29 |
| 42 | 2453863 | 2006-05-07 | 278.35 |
| 43 | 2454138 | 2007-02-06 | 278.78 |
| 44 | 2454407 | 2007-11-02 | 278.79 |
| 45 | 2454700 | 2008-08-21 | 278.57 |
| 46 | 2454972 | 2009-05-20 | 279.07 |
| 47 | 2455258 | 2010-03-02 | 280.21 |
| 48 | 2455536 | 2010-12-05 | 279.78 |
| 49 | 2455813 | 2011-09-08 | 279.5 |
| 50 | 2456095 | 2012-06-16 | 280.29 |
| 51 | 2456373 | 2013-03-21 | 280.15 |
| 52 | 2456651 | 2013-12-24 | 279.64 |
| 53 | 2456934 | 2014-10-03 | 279.21 |
| 54 | 2457220 | 2015-07-16 | 279.5 |
| 55 | 2457496 | 2016-04-17 | 280.22 |
| 56 | 2457768 | 2017-01-14 | 279.93 |
| 57 | 2458049 | 2017-10-22 | 278.5 |
| 58 | 2458332 | 2018-08-01 | 277.78 |
| 59 | 2458615 | 2019-05-11 | 278.72 |
| 60 | 2458889 | 2020-02-09 | 279.59 |
| 61 | 2459164 | 2020-11-10 | 278.94 |
| 62 | 2459441 | 2021-08-14 | 277.08 |
| 63 | 2459725 | 2022-05-25 | 275.88 |
| 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. |