| E | O (JD) | O (dat) | Period |
| -124 | 2415030 | 1900-01-10 | 313.99 |
| -123 | 2415340 | 1900-11-16 | 313.4 |
| -122 | 2415650 | 1901-09-22 | 312.98 |
| -118 | 2416910 | 1905-03-05 | 312.78 |
| -117 | 2417230 | 1906-01-19 | 312.98 |
| -115 | 2417850 | 1907-10-01 | 312.78 |
| -110 | 2419412 | 1912-01-10 | 312.54 |
| -109 | 2419718 | 1912-11-11 | 312.35 |
| -108 | 2420030 | 1913-09-19 | 312.15 |
| -107 | 2420357 | 1914-08-12 | 312.19 |
| -106 | 2420653 | 1915-06-04 | 312.91 |
| -105 | 2420961 | 1916-04-07 | 313.75 |
| -104 | 2421282 | 1917-02-22 | 312.97 |
| -103 | 2421606 | 1918-01-12 | 313.14 |
| -102 | 2421914 | 1918-11-16 | 312.89 |
| -101 | 2422234 | 1919-10-02 | 313.36 |
| -100 | 2422546 | 1920-08-09 | 313.39 |
| -98 | 2423147 | 1922-04-02 | 313.77 |
| -97 | 2423482 | 1923-03-03 | 314.81 |
| -96 | 2423788 | 1924-01-03 | 315.42 |
| -95 | 2424103 | 1924-11-13 | 315.83 |
| -94 | 2424423 | 1925-09-29 | 316.54 |
| -93 | 2424754 | 1926-08-26 | 317.03 |
| -92 | 2425082 | 1927-07-20 | 315.92 |
| -90 | 2425693 | 1929-03-22 | 315.6 |
| -89 | 2426010 | 1930-02-02 | 315.59 |
| -88 | 2426326 | 1930-12-15 | 315.41 |
| -87 | 2426636 | 1931-10-21 | 314.86 |
| -86 | 2426947 | 1932-08-27 | 315.04 |
| -85 | 2427262 | 1933-07-08 | 315.7 |
| -84 | 2427596 | 1934-06-07 | 315.55 |
| -83 | 2427913 | 1935-04-20 | 315.26 |
| -82 | 2428219 | 1936-02-20 | 314.79 |
| -81 | 2428535 | 1937-01-01 | 314.15 |
| -80 | 2428842 | 1937-11-04 | 313.88 |
| -79 | 2429161 | 1938-09-19 | 314.07 |
| -78 | 2429471 | 1939-07-26 | 314.28 |
| -77 | 2429780 | 1940-05-30 | 315.05 |
| -76 | 2430095 | 1941-04-10 | 315.47 |
| -75 | 2430422 | 1942-03-03 | 315.54 |
| -74 | 2430749 | 1943-01-24 | 315.39 |
| -73 | 2431046 | 1943-11-17 | 315.5 |
| -72 | 2431368 | 1944-10-04 | 314.54 |
| -71 | 2431684 | 1945-08-16 | 313.52 |
| -70 | 2431990 | 1946-06-18 | 312.42 |
| -69 | 2432308 | 1947-05-02 | 312.37 |
| -68 | 2432624 | 1948-03-13 | 312.88 |
| -67 | 2432921 | 1949-01-04 | 312.51 |
| -66 | 2433239 | 1949-11-18 | 312.63 |
| -65 | 2433551 | 1950-09-26 | 313.44 |
| -64 | 2433873 | 1951-08-14 | 313.41 |
| -63 | 2434183 | 1952-06-19 | 314.22 |
| -62 | 2434494 | 1953-04-26 | 314.95 |
| -61 | 2434808 | 1954-03-06 | 314.95 |
| -60 | 2435132 | 1955-01-24 | 314.36 |
| -59 | 2435436 | 1955-11-24 | 313.75 |
| -58 | 2435762 | 1956-10-15 | 313.87 |
| -57 | 2436072 | 1957-08-21 | 313.67 |
| -56 | 2436389 | 1958-07-04 | 313.06 |
| -55 | 2436688 | 1959-04-29 | 312.69 |
| -54 | 2437003 | 1960-03-09 | 312.47 |
| -53 | 2437323 | 1961-01-23 | 311.72 |
| -52 | 2437634 | 1961-11-30 | 311.8 |
| -51 | 2437942 | 1962-10-04 | 311.9 |
| -50 | 2438260 | 1963-08-18 | 312.23 |
| -49 | 2438565 | 1964-06-18 | 312.13 |
| -48 | 2438875 | 1965-04-24 | 312.26 |
| -47 | 2439190 | 1966-03-05 | 313.17 |
| -46 | 2439504 | 1967-01-13 | 313.85 |
| -45 | 2439815 | 1967-11-20 | 314.35 |
| -44 | 2440132 | 1968-10-02 | 315.37 |
| -43 | 2440448 | 1969-08-14 | 315.87 |
| -42 | 2440770 | 1970-07-02 | 316.22 |
| -41 | 2441081 | 1971-05-09 | 316.56 |
| -40 | 2441397 | 1972-03-20 | 316.52 |
| -39 | 2441718 | 1973-02-04 | 316.18 |
| -38 | 2442032 | 1973-12-15 | 315.94 |
| -37 | 2442350 | 1974-10-29 | 315.27 |
| -36 | 2442667 | 1975-09-11 | 315.1 |
| -35 | 2442977 | 1976-07-17 | 314.49 |
| -34 | 2443292 | 1977-05-28 | 314.23 |
| -33 | 2443609 | 1978-04-10 | 314.54 |
| -32 | 2443916 | 1979-02-11 | 314.45 |
| -31 | 2444234 | 1979-12-26 | 314.77 |
| -30 | 2444544 | 1980-10-31 | 315.4 |
| -29 | 2444865 | 1981-09-17 | 315.56 |
| -28 | 2445186 | 1982-08-04 | 316.35 |
| -27 | 2445494 | 1983-06-08 | 317.09 |
| -26 | 2445814 | 1984-04-23 | 317.27 |
| -25 | 2446133 | 1985-03-08 | 317.28 |
| -24 | 2446444 | 1986-01-13 | 316.19 |
| -23 | 2446773 | 1986-12-08 | 315.33 |
| -22 | 2447088 | 1987-10-19 | 314.75 |
| -21 | 2447403 | 1988-08-29 | 313.65 |
| -20 | 2447715 | 1989-07-07 | 312.77 |
| -19 | 2448015 | 1990-05-03 | 312.24 |
| -18 | 2448329 | 1991-03-13 | 311.55 |
| -17 | 2448643 | 1992-01-21 | 311.39 |
| -16 | 2448953 | 1992-11-26 | 311.85 |
| -15 | 2449266 | 1993-10-05 | 312.4 |
| -14 | 2449581 | 1994-08-16 | 312.97 |
| -13 | 2449894 | 1995-06-25 | 312.55 |
| -12 | 2450201 | 1996-04-27 | 312.71 |
| -11 | 2450522 | 1997-03-14 | 313.25 |
| -10 | 2450833 | 1998-01-19 | 313.75 |
| -9 | 2451145 | 1998-11-27 | 314.35 |
| -8 | 2451449 | 1999-09-27 | 315.14 |
| -7 | 2451772 | 2000-08-15 | 316.14 |
| -6 | 2452092 | 2001-07-01 | 316.63 |
| -5 | 2452409 | 2002-05-14 | 317.44 |
| -4 | 2452727 | 2003-03-28 | 318.36 |
| -3 | 2453045 | 2004-02-09 | 318.2 |
| -2 | 2453367 | 2004-12-27 | 317.8 |
| -1 | 2453682 | 2005-11-07 | 317.82 |
| 0 | 2454000 | 2006-09-21 | 317.78 |
| 1 | 2454325 | 2007-08-12 | 317.98 |
| 2 | 2454625 | 2008-06-07 | 317.95 |
| 3 | 2454951 | 2009-04-29 | 317.83 |
| 4 | 2455273 | 2010-03-17 | 318.52 |
| 5 | 2455588 | 2011-01-26 | 318.84 |
| 6 | 2455912 | 2011-12-16 | 318.35 |
| 7 | 2456226 | 2012-10-25 | 318.51 |
| 8 | 2456542 | 2013-09-06 | 318.05 |
| 9 | 2456873 | 2014-08-03 | 317.6 |
| 10 | 2457188 | 2015-06-14 | 317.43 |
| 11 | 2457490 | 2016-04-11 | 317.36 |
| 12 | 2457812 | 2017-02-27 | 317.78 |
| 13 | 2458136 | 2018-01-17 | 317.79 |
| 14 | 2458447 | 2018-11-24 | 317.56 |
| 15 | 2458766 | 2019-10-09 | 318.25 |
| 16 | 2459089 | 2020-08-27 | 319.26 |
| 17 | 2459411 | 2021-07-15 | 318.96 |
| 18 | 2459725 | 2022-05-25 | 318.86 |
| 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. |