| E | O (JD) | O (dat) | Period |
| -171 | 2412850 | 1894-01-21 | 245.92 |
| -170 | 2413100 | 1894-09-28 | 245.93 |
| -167 | 2413833 | 1896-09-30 | 247.06 |
| -165 | 2414330 | 1898-02-09 | 247.48 |
| -164 | 2414570 | 1898-10-07 | 247.63 |
| -163 | 2414820 | 1899-06-14 | 248.32 |
| -162 | 2415065 | 1900-02-14 | 248.55 |
| -161 | 2415335 | 1900-11-11 | 249.11 |
| -158 | 2416069 | 1902-11-15 | 249.17 |
| -155 | 2416810 | 1904-11-25 | 249.02 |
| -154 | 2417080 | 1905-08-22 | 248.95 |
| -152 | 2417560 | 1906-12-15 | 248.36 |
| -151 | 2417815 | 1907-08-27 | 247.25 |
| -149 | 2418310 | 1909-01-03 | 246.18 |
| -146 | 2419050 | 1911-01-13 | 245.16 |
| -145 | 2419308 | 1911-09-28 | 243.3 |
| -143 | 2419784 | 1913-01-16 | 241.38 |
| -142 | 2420013 | 1913-09-02 | 239.41 |
| -140 | 2420488 | 1914-12-21 | 237.33 |
| -139 | 2420743 | 1915-09-02 | 235.12 |
| -137 | 2421197 | 1916-11-29 | 234.96 |
| -135 | 2421654 | 1918-03-01 | 234.43 |
| -134 | 2421893 | 1918-10-26 | 234.99 |
| -131 | 2422603 | 1920-10-05 | 235.35 |
| -129 | 2423055 | 1921-12-31 | 235.74 |
| -128 | 2423324 | 1922-09-26 | 236.15 |
| -126 | 2423763 | 1923-12-09 | 236.57 |
| -125 | 2424033 | 1924-09-04 | 236.76 |
| -123 | 2424505 | 1925-12-20 | 236.65 |
| -120 | 2425210 | 1927-11-25 | 236.66 |
| -117 | 2425900 | 1929-10-15 | 236.22 |
| -114 | 2426624 | 1931-10-09 | 236.57 |
| -111 | 2427340 | 1933-09-24 | 236.13 |
| -109 | 2427800 | 1934-12-28 | 236.3 |
| -108 | 2428040 | 1935-08-25 | 236.83 |
| -106 | 2428510 | 1936-12-07 | 237.57 |
| -105 | 2428758 | 1937-08-12 | 237.44 |
| -103 | 2429227 | 1938-11-24 | 237.84 |
| -102 | 2429460 | 1939-07-15 | 239.07 |
| -100 | 2429945 | 1940-11-11 | 239.39 |
| -99 | 2430190 | 1941-07-14 | 239.72 |
| -97 | 2430658 | 1942-10-25 | 239.94 |
| -94 | 2431374 | 1944-10-10 | 239.94 |
| -91 | 2432113 | 1946-10-19 | 240.07 |
| -88 | 2432824 | 1948-09-29 | 240.15 |
| -85 | 2433545 | 1950-09-20 | 240.27 |
| -82 | 2434270 | 1952-09-14 | 240.66 |
| -76 | 2435696 | 1956-08-10 | 240.6 |
| -74 | 2436188 | 1957-12-15 | 240.68 |
| -73 | 2436434 | 1958-08-18 | 241.4 |
| -71 | 2436915 | 1959-12-12 | 242.01 |
| -70 | 2437169 | 1960-08-22 | 242.95 |
| -68 | 2437633 | 1961-11-29 | 244.53 |
| -67 | 2437893 | 1962-08-16 | 244.55 |
| -65 | 2438387 | 1963-12-23 | 244.57 |
| -64 | 2438630 | 1964-08-22 | 244.18 |
| -62 | 2439121 | 1965-12-26 | 243.5 |
| -61 | 2439369 | 1966-08-31 | 243.62 |
| -58 | 2440097 | 1968-08-28 | 243.15 |
| -55 | 2440828 | 1970-08-29 | 242.92 |
| -53 | 2441300 | 1971-12-14 | 242.71 |
| -52 | 2441533 | 1972-08-03 | 242.2 |
| -50 | 2442038 | 1973-12-21 | 241.63 |
| -49 | 2442281 | 1974-08-21 | 241.83 |
| -47 | 2442765 | 1975-12-18 | 241.28 |
| -46 | 2443002 | 1976-08-11 | 240.64 |
| -44 | 2443476 | 1977-11-28 | 239.98 |
| -41 | 2444195 | 1979-11-17 | 239.13 |
| -40 | 2444459 | 1980-08-07 | 238.55 |
| -38 | 2444914 | 1981-11-05 | 238.38 |
| -37 | 2445140 | 1982-06-19 | 238.74 |
| -35 | 2445627 | 1983-10-19 | 238.93 |
| -34 | 2445870 | 1984-06-18 | 239.16 |
| -33 | 2446093 | 1985-01-27 | 239.32 |
| -32 | 2446345 | 1985-10-06 | 240.66 |
| -30 | 2446834 | 1987-02-07 | 241.09 |
| -29 | 2447070 | 1987-10-01 | 241.04 |
| -27 | 2447554 | 1989-01-27 | 241.33 |
| -26 | 2447791 | 1989-09-21 | 241.29 |
| -24 | 2448275 | 1991-01-18 | 240.48 |
| -23 | 2448516 | 1991-09-16 | 240.1 |
| -21 | 2448998 | 1993-01-10 | 240.28 |
| -20 | 2449245 | 1993-09-14 | 239.75 |
| -18 | 2449715 | 1994-12-28 | 240.41 |
| -17 | 2449948 | 1995-08-18 | 241.04 |
| -15 | 2450432 | 1996-12-14 | 241.39 |
| -14 | 2450681 | 1997-08-20 | 242.02 |
| -13 | 2450903 | 1998-03-30 | 241.68 |
| -12 | 2451178 | 1998-12-30 | 242.33 |
| -11 | 2451424 | 1999-09-02 | 242.37 |
| -9 | 2451895 | 2000-12-16 | 241.31 |
| -8 | 2452144 | 2001-08-22 | 240.38 |
| -6 | 2452603 | 2002-11-24 | 238.78 |
| -5 | 2452860 | 2003-08-08 | 236.93 |
| -4 | 2453100 | 2004-04-04 | 236.16 |
| -3 | 2453320 | 2004-11-10 | 236.07 |
| -2 | 2453562 | 2005-07-10 | 235.92 |
| -1 | 2453773 | 2006-02-06 | 236.42 |
| 0 | 2454028 | 2006-10-19 | 236.39 |
| 2 | 2454497 | 2008-01-31 | 237.18 |
| 3 | 2454742 | 2008-10-02 | 237.98 |
| 5 | 2455215 | 2010-01-18 | 238.52 |
| 6 | 2455456 | 2010-09-16 | 238.77 |
| 8 | 2455930 | 2012-01-03 | 238.2 |
| 9 | 2456173 | 2012-09-02 | 238.52 |
| 11 | 2456646 | 2013-12-19 | 238.9 |
| 12 | 2456893 | 2014-08-23 | 239.07 |
| 14 | 2457357 | 2015-11-30 | 239.29 |
| 15 | 2457595 | 2016-07-25 | 239.75 |
| 17 | 2458083 | 2017-11-25 | 240.19 |
| 18 | 2458334 | 2018-08-03 | 241.01 |
| 20 | 2458800 | 2019-11-12 | 241.27 |
| 21 | 2459046 | 2020-07-15 | 242.26 |
| 22 | 2459291 | 2021-03-17 | 242.4 |
| 23 | 2459537 | 2021-11-18 | 242.14 |
| 24 | 2459784 | 2022-07-23 | 242.19 |
| 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. |