| E | O (JD) | O (dat) | Period |
| -197 | 2413220 | 1895-01-26 | 206.72 |
| -196 | 2413428 | 1895-08-22 | 206.69 |
| -194 | 2413840 | 1896-10-07 | 206.5 |
| -192 | 2414260 | 1897-12-01 | 206.89 |
| -190 | 2414670 | 1899-01-15 | 206.95 |
| -185 | 2415700 | 1901-11-11 | 206.91 |
| -183 | 2416115 | 1902-12-31 | 206.83 |
| -180 | 2416730 | 1904-09-06 | 207.09 |
| -178 | 2417161 | 1905-11-11 | 207.26 |
| -175 | 2417775 | 1907-07-18 | 207.46 |
| -173 | 2418185 | 1908-08-31 | 207.5 |
| -169 | 2419010 | 1910-12-04 | 207.46 |
| -164 | 2420062 | 1913-10-21 | 207.26 |
| -162 | 2420477 | 1914-12-10 | 207.06 |
| -157 | 2421511 | 1917-10-09 | 207.15 |
| -155 | 2421920 | 1918-11-22 | 207.23 |
| -153 | 2422335 | 1920-01-11 | 207.21 |
| -150 | 2422945 | 1921-09-12 | 207.03 |
| -146 | 2423780 | 1923-12-26 | 207.19 |
| -143 | 2424404 | 1925-09-10 | 207.38 |
| -141 | 2424825 | 1926-11-05 | 207.5 |
| -139 | 2425240 | 1927-12-25 | 207.85 |
| -138 | 2425445 | 1928-07-17 | 208.14 |
| -137 | 2425655 | 1929-02-12 | 207.93 |
| -136 | 2425858 | 1929-09-03 | 208.1 |
| -134 | 2426270 | 1930-10-20 | 207.88 |
| -132 | 2426700 | 1931-12-24 | 207.73 |
| -131 | 2426900 | 1932-07-11 | 208.04 |
| -129 | 2427315 | 1933-08-30 | 208.07 |
| -127 | 2427740 | 1934-10-29 | 208.26 |
| -125 | 2428145 | 1935-12-08 | 207.96 |
| -122 | 2428765 | 1937-08-19 | 207.68 |
| -120 | 2429195 | 1938-10-23 | 207.72 |
| -118 | 2429606 | 1939-12-08 | 207.48 |
| -115 | 2430235 | 1941-08-28 | 207.28 |
| -113 | 2430636 | 1942-10-03 | 206.97 |
| -111 | 2431054 | 1943-11-25 | 206.8 |
| -109 | 2431470 | 1945-01-14 | 207.14 |
| -108 | 2431670 | 1945-08-02 | 207.2 |
| -106 | 2432088 | 1946-09-24 | 207.35 |
| -101 | 2433110 | 1949-07-12 | 207.55 |
| -97 | 2433950 | 1951-10-30 | 207.58 |
| -85 | 2436452 | 1958-09-05 | 207.49 |
| -83 | 2436854 | 1959-10-12 | 207.49 |
| -78 | 2437900 | 1962-08-23 | 207.44 |
| -76 | 2438317 | 1963-10-14 | 207.48 |
| -74 | 2438730 | 1964-11-30 | 207.28 |
| -60 | 2441622 | 1972-10-31 | 207.18 |
| -58 | 2442040 | 1973-12-23 | 207.41 |
| -57 | 2442245 | 1974-07-16 | 207.46 |
| -56 | 2442460 | 1975-02-16 | 207.59 |
| -55 | 2442662 | 1975-09-06 | 207.83 |
| -53 | 2443084 | 1976-11-01 | 208.86 |
| -51 | 2443510 | 1978-01-01 | 208.61 |
| -50 | 2443720 | 1978-07-30 | 208.28 |
| -49 | 2443920 | 1979-02-15 | 207.93 |
| -48 | 2444122 | 1979-09-05 | 207.58 |
| -46 | 2444542 | 1980-10-29 | 207.1 |
| -44 | 2444957 | 1981-12-18 | 207.06 |
| -43 | 2445161 | 1982-07-10 | 207.19 |
| -42 | 2445371 | 1983-02-05 | 207.87 |
| -41 | 2445572 | 1983-08-25 | 208.17 |
| -39 | 2445992 | 1984-10-18 | 208.53 |
| -37 | 2446412 | 1985-12-12 | 208.69 |
| -35 | 2446821 | 1987-01-25 | 209 |
| -34 | 2447043 | 1987-09-04 | 209.08 |
| -32 | 2447455 | 1988-10-20 | 209.29 |
| -30 | 2447880 | 1989-12-19 | 209.17 |
| -29 | 2448080 | 1990-07-07 | 209.17 |
| -28 | 2448296 | 1991-02-08 | 209.05 |
| -27 | 2448501 | 1991-09-01 | 208.5 |
| -25 | 2448921 | 1992-10-25 | 208.33 |
| -23 | 2449337 | 1993-12-15 | 207.8 |
| -22 | 2449548 | 1994-07-14 | 207.35 |
| -21 | 2449751 | 1995-02-02 | 206.56 |
| -20 | 2449957 | 1995-08-27 | 206.33 |
| -18 | 2450372 | 1996-10-15 | 206.13 |
| -16 | 2450783 | 1997-11-30 | 206.04 |
| -14 | 2451190 | 1999-01-11 | 206.17 |
| -13 | 2451390 | 1999-07-30 | 206.52 |
| -12 | 2451605 | 2000-03-01 | 206.77 |
| -11 | 2451817 | 2000-09-29 | 207.31 |
| -9 | 2452226 | 2001-11-12 | 207.66 |
| -7 | 2452642 | 2003-01-02 | 207.83 |
| -6 | 2452852 | 2003-07-31 | 207.81 |
| -5 | 2453059 | 2004-02-23 | 207.63 |
| -4 | 2453275 | 2004-09-26 | 207.38 |
| -2 | 2453681 | 2005-11-06 | 207.37 |
| -1 | 2453886 | 2006-05-30 | 207.17 |
| 0 | 2454096 | 2006-12-26 | 206.9 |
| 1 | 2454308 | 2007-07-26 | 206.84 |
| 2 | 2454507 | 2008-02-10 | 206.72 |
| 3 | 2454715 | 2008-09-05 | 207.02 |
| 5 | 2455132 | 2009-10-27 | 206.98 |
| 7 | 2455543 | 2010-12-12 | 206.88 |
| 8 | 2455752 | 2011-07-09 | 206.59 |
| 9 | 2455958 | 2012-01-31 | 206.77 |
| 10 | 2456166 | 2012-08-26 | 206.48 |
| 12 | 2456579 | 2013-10-13 | 206.47 |
| 14 | 2456993 | 2014-12-01 | 206.61 |
| 15 | 2457191 | 2015-06-17 | 206.69 |
| 16 | 2457405 | 2016-01-17 | 206.77 |
| 17 | 2457605 | 2016-08-04 | 207.12 |
| 18 | 2457820 | 2017-03-07 | 207.21 |
| 19 | 2458027 | 2017-09-30 | 207.47 |
| 21 | 2458441 | 2018-11-18 | 207.81 |
| 22 | 2458646 | 2019-06-11 | 207.8 |
| 23 | 2458861 | 2020-01-12 | 207.96 |
| 24 | 2459059 | 2020-07-28 | 207.7 |
| 25 | 2459271 | 2021-02-25 | 207.86 |
| 26 | 2459481 | 2021-09-23 | 208.14 |
| 28 | 2459898 | 2022-11-14 | 208.34 |
| 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. |