| E | O (JD) | O (dat) | Period |
| -117 | 2414190 | 1897-09-22 | 334.54 |
| -110 | 2416530 | 1904-02-19 | 334.77 |
| -109 | 2416869 | 1905-01-23 | 334.27 |
| -108 | 2417196 | 1905-12-16 | 333.97 |
| -107 | 2417540 | 1906-11-25 | 334.02 |
| -106 | 2417868 | 1907-10-19 | 334.21 |
| -105 | 2418210 | 1908-09-25 | 334.24 |
| -98 | 2420539 | 1915-02-10 | 334.31 |
| -97 | 2420868 | 1916-01-05 | 334.65 |
| -96 | 2421210 | 1916-12-12 | 334.78 |
| -95 | 2421552 | 1917-11-19 | 334.3 |
| -94 | 2421885 | 1918-10-18 | 333.97 |
| -93 | 2422221 | 1919-09-19 | 333.78 |
| -92 | 2422565 | 1920-08-28 | 333.54 |
| -91 | 2422900 | 1921-07-29 | 333.44 |
| -87 | 2424205 | 1925-02-23 | 333.39 |
| -86 | 2424550 | 1926-02-03 | 333.54 |
| -85 | 2424880 | 1926-12-30 | 333.76 |
| -84 | 2425220 | 1927-12-05 | 334.23 |
| -83 | 2425565 | 1928-11-14 | 334.78 |
| -82 | 2425897 | 1929-10-12 | 336.23 |
| -81 | 2426231 | 1930-09-11 | 335.48 |
| -80 | 2426570 | 1931-08-16 | 334.69 |
| -79 | 2426910 | 1932-07-21 | 333.83 |
| -75 | 2428235 | 1936-03-07 | 333.49 |
| -74 | 2428585 | 1937-02-20 | 333.34 |
| -73 | 2428906 | 1938-01-07 | 332.85 |
| -72 | 2429227 | 1938-11-24 | 332.35 |
| -71 | 2429560 | 1939-10-23 | 332.18 |
| -70 | 2429905 | 1940-10-02 | 332.5 |
| -69 | 2430235 | 1941-08-28 | 332.24 |
| -68 | 2430560 | 1942-07-19 | 332.69 |
| -63 | 2432225 | 1947-02-08 | 332.84 |
| -62 | 2432560 | 1948-01-09 | 332.83 |
| -61 | 2432900 | 1948-12-14 | 332.26 |
| -60 | 2433220 | 1949-10-30 | 332.42 |
| -59 | 2433559 | 1950-10-04 | 332.59 |
| -58 | 2433890 | 1951-08-31 | 332.9 |
| -57 | 2434230 | 1952-08-05 | 333.13 |
| -50 | 2436542 | 1958-12-04 | 333.08 |
| -49 | 2436883 | 1959-11-10 | 333.05 |
| -48 | 2437219 | 1960-10-11 | 333.35 |
| -47 | 2437567 | 1961-09-24 | 333.34 |
| -46 | 2437899 | 1962-08-22 | 333.81 |
| -43 | 2438886 | 1965-05-05 | 335.08 |
| -41 | 2439545 | 1967-02-23 | 335.33 |
| -40 | 2439906 | 1968-02-19 | 335.37 |
| -39 | 2440220 | 1968-12-29 | 335.24 |
| -37 | 2440909 | 1970-11-18 | 335.69 |
| -36 | 2441252 | 1971-10-27 | 336.43 |
| -35 | 2441591 | 1972-09-30 | 334.76 |
| -34 | 2441916 | 1973-08-21 | 332.09 |
| -33 | 2442245 | 1974-07-16 | 330.98 |
| -32 | 2442580 | 1975-06-16 | 329.24 |
| -31 | 2442917 | 1976-05-18 | 328.89 |
| -30 | 2443216 | 1977-03-13 | 328.74 |
| -29 | 2443540 | 1978-01-31 | 328.56 |
| -28 | 2443880 | 1979-01-06 | 328.53 |
| -27 | 2444226 | 1979-12-18 | 327.99 |
| -26 | 2444556 | 1980-11-12 | 327.75 |
| -25 | 2444878 | 1981-09-30 | 329.06 |
| -24 | 2445196 | 1982-08-14 | 329.34 |
| -23 | 2445530 | 1983-07-14 | 328.44 |
| -22 | 2445847 | 1984-05-26 | 328.42 |
| -21 | 2446172 | 1985-04-16 | 329.54 |
| -20 | 2446520 | 1986-03-30 | 331.05 |
| -19 | 2446859 | 1987-03-04 | 332.34 |
| -18 | 2447173 | 1988-01-12 | 333.37 |
| -17 | 2447511 | 1988-12-15 | 334.96 |
| -16 | 2447847 | 1989-11-16 | 335.27 |
| -15 | 2448184 | 1990-10-19 | 334.61 |
| -14 | 2448518 | 1991-09-18 | 335.05 |
| -13 | 2448859 | 1992-08-24 | 336.14 |
| -12 | 2449203 | 1993-08-03 | 335.75 |
| -11 | 2449529 | 1994-06-25 | 335.86 |
| -10 | 2449854 | 1995-05-16 | 335.66 |
| -9 | 2450197 | 1996-04-23 | 335.81 |
| -8 | 2450540 | 1997-04-01 | 335.59 |
| -7 | 2450867 | 1998-02-22 | 335.19 |
| -6 | 2451211 | 1999-02-01 | 335.36 |
| -5 | 2451541 | 1999-12-28 | 334.93 |
| -4 | 2451883 | 2000-12-04 | 334.11 |
| -3 | 2452214 | 2001-10-31 | 332.49 |
| -2 | 2452540 | 2002-09-22 | 332.04 |
| -1 | 2452876 | 2003-08-24 | 331.62 |
| 0 | 2453206 | 2004-07-19 | 331.48 |
| 1 | 2453543 | 2005-06-21 | 331.17 |
| 3 | 2454187 | 2007-03-27 | 331.38 |
| 4 | 2454529 | 2008-03-03 | 331.61 |
| 5 | 2454867 | 2009-02-04 | 331.72 |
| 6 | 2455195 | 2009-12-29 | 332.31 |
| 7 | 2455525 | 2010-11-24 | 332.73 |
| 8 | 2455859 | 2011-10-24 | 333.33 |
| 9 | 2456191 | 2012-09-20 | 332.92 |
| 10 | 2456526 | 2013-08-21 | 332.65 |
| 11 | 2456865 | 2014-07-26 | 332.34 |
| 12 | 2457195 | 2015-06-21 | 331.93 |
| 13 | 2457523 | 2016-05-14 | 330.98 |
| 14 | 2457859 | 2017-04-15 | 329.93 |
| 15 | 2458186 | 2018-03-08 | 328.55 |
| 16 | 2458511 | 2019-01-27 | 327.9 |
| 17 | 2458844 | 2019-12-26 | 328.93 |
| 18 | 2459166 | 2020-11-12 | 328.89 |
| 19 | 2459491 | 2021-10-03 | 328.75 |
| 20 | 2459812 | 2022-08-20 | 329.25 |
| 21 | 2460150 | 2023-07-24 | 330 |
| 22 | 2460505 | 2024-07-13 | 330.8 |
| 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. |