| E | O (JD) | O (dat) | Period |
| -118 | 2411610 | 1890-08-30 | 275.86 |
| -116 | 2412170 | 1892-03-12 | 276.2 |
| -110 | 2413815 | 1896-09-12 | 276.48 |
| -108 | 2414360 | 1898-03-11 | 276.64 |
| -106 | 2414927 | 1899-09-29 | 276.86 |
| -105 | 2415203 | 1900-07-02 | 277.08 |
| -103 | 2415760 | 1902-01-10 | 277.74 |
| -102 | 2416040 | 1902-10-17 | 279.55 |
| -101 | 2416316 | 1903-07-20 | 280 |
| -100 | 2416599 | 1904-04-28 | 279.56 |
| -98 | 2417155 | 1905-11-05 | 279.48 |
| -97 | 2417444 | 1906-08-21 | 279.16 |
| -96 | 2417730 | 1907-06-03 | 278.56 |
| -93 | 2418560 | 1909-09-10 | 278.05 |
| -92 | 2418830 | 1910-06-07 | 277.66 |
| -89 | 2419670 | 1912-09-24 | 277.55 |
| -88 | 2419943 | 1913-06-24 | 277.79 |
| -85 | 2420770 | 1915-09-29 | 278.27 |
| -84 | 2421044 | 1916-06-29 | 278.76 |
| -83 | 2421327 | 1917-04-08 | 279.07 |
| -80 | 2422168 | 1919-07-28 | 279.12 |
| -77 | 2423015 | 1921-11-21 | 279.63 |
| -76 | 2423300 | 1922-09-02 | 280.29 |
| -75 | 2423570 | 1923-05-30 | 280.06 |
| -73 | 2424125 | 1924-12-05 | 279.63 |
| -72 | 2424399 | 1925-09-05 | 279.14 |
| -71 | 2424692 | 1926-06-25 | 278.94 |
| -70 | 2424980 | 1927-04-09 | 279.25 |
| -68 | 2425521 | 1928-10-01 | 279.31 |
| -67 | 2425801 | 1929-07-08 | 279.3 |
| -66 | 2426080 | 1930-04-13 | 279.27 |
| -64 | 2426645 | 1931-10-30 | 278.75 |
| -63 | 2426928 | 1932-08-08 | 278.88 |
| -62 | 2427194 | 1933-05-01 | 279.04 |
| -59 | 2428038 | 1935-08-23 | 278.66 |
| -58 | 2428320 | 1936-05-31 | 278.07 |
| -56 | 2428870 | 1937-12-02 | 277.44 |
| -55 | 2429155 | 1938-09-13 | 277.01 |
| -54 | 2429424 | 1939-06-09 | 276.67 |
| -52 | 2429980 | 1940-12-16 | 275.75 |
| -51 | 2430249 | 1941-09-11 | 276 |
| -50 | 2430526 | 1942-06-15 | 276.54 |
| -49 | 2430800 | 1943-03-16 | 277.03 |
| -47 | 2431351 | 1944-09-17 | 278.01 |
| -46 | 2431628 | 1945-06-21 | 278.13 |
| -45 | 2431920 | 1946-04-09 | 278.03 |
| -43 | 2432475 | 1947-10-16 | 278.16 |
| -42 | 2432756 | 1948-07-23 | 278.95 |
| -41 | 2433040 | 1949-05-03 | 278.05 |
| -39 | 2433580 | 1950-10-25 | 277.2 |
| -38 | 2433850 | 1951-07-22 | 276.66 |
| -37 | 2434140 | 1952-05-07 | 276.92 |
| -33 | 2435271 | 1955-06-12 | 276.75 |
| -30 | 2436070 | 1957-08-19 | 276.83 |
| -24 | 2437732 | 1962-03-08 | 276.99 |
| -21 | 2438560 | 1964-06-13 | 277.07 |
| -20 | 2438860 | 1965-04-09 | 276.89 |
| -18 | 2439393 | 1966-09-24 | 276.97 |
| -17 | 2439681 | 1967-07-09 | 278.64 |
| -16 | 2439955 | 1968-04-08 | 279.22 |
| -14 | 2440520 | 1969-10-25 | 279.05 |
| -13 | 2440794 | 1970-07-26 | 278.53 |
| -12 | 2441075 | 1971-05-03 | 279.09 |
| -11 | 2441376 | 1972-02-28 | 278.58 |
| -10 | 2441634 | 1972-11-12 | 278.42 |
| -9 | 2441905 | 1973-08-10 | 278.38 |
| -8 | 2442186 | 1974-05-18 | 278.54 |
| -6 | 2442745 | 1975-11-28 | 278.71 |
| -5 | 2443024 | 1976-09-02 | 278.83 |
| -4 | 2443302 | 1977-06-07 | 279.66 |
| -3 | 2443590 | 1978-03-22 | 279.77 |
| -1 | 2444144 | 1979-09-27 | 280.09 |
| 0 | 2444429 | 1980-07-08 | 280.54 |
| 3 | 2445263 | 1982-10-20 | 280.61 |
| 4 | 2445543 | 1983-07-27 | 280.12 |
| 5 | 2445820 | 1984-04-29 | 279.6 |
| 6 | 2446115 | 1985-02-18 | 279.69 |
| 7 | 2446400 | 1985-11-30 | 279.32 |
| 8 | 2446671 | 1986-08-28 | 278.56 |
| 9 | 2446934 | 1987-05-18 | 277.77 |
| 10 | 2447216 | 1988-02-24 | 277.6 |
| 11 | 2447504 | 1988-12-08 | 277.15 |
| 12 | 2447779 | 1989-09-09 | 277.06 |
| 13 | 2448045 | 1990-06-02 | 277.16 |
| 14 | 2448325 | 1991-03-09 | 277.55 |
| 15 | 2448615 | 1991-12-24 | 277.17 |
| 16 | 2448891 | 1992-09-25 | 276.55 |
| 17 | 2449159 | 1993-06-20 | 276.48 |
| 18 | 2449430 | 1994-03-18 | 277.02 |
| 19 | 2449717 | 1994-12-30 | 276.75 |
| 20 | 2449994 | 1995-10-03 | 276.3 |
| 21 | 2450262 | 1996-06-27 | 276.37 |
| 22 | 2450538 | 1997-03-30 | 276.91 |
| 23 | 2450828 | 1998-01-14 | 277.57 |
| 24 | 2451101 | 1998-10-14 | 277.75 |
| 25 | 2451372 | 1999-07-12 | 278.16 |
| 26 | 2451645 | 2000-04-10 | 278.49 |
| 27 | 2451930 | 2001-01-20 | 278.93 |
| 28 | 2452219 | 2001-11-05 | 279.11 |
| 29 | 2452495 | 2002-08-08 | 279.74 |
| 30 | 2452769 | 2003-05-09 | 279.68 |
| 31 | 2453045 | 2004-02-09 | 279.95 |
| 32 | 2453336 | 2004-11-26 | 279.73 |
| 33 | 2453614 | 2005-08-31 | 279.11 |
| 34 | 2453891 | 2006-06-04 | 279.3 |
| 35 | 2454161 | 2007-03-01 | 279.13 |
| 36 | 2454455 | 2007-12-20 | 278.86 |
| 37 | 2454733 | 2008-09-23 | 278.32 |
| 38 | 2455000 | 2009-06-17 | 278.53 |
| 39 | 2455285 | 2010-03-29 | 278.7 |
| 40 | 2455559 | 2010-12-28 | 278.4 |
| 41 | 2455841 | 2011-10-06 | 278.01 |
| 42 | 2456118 | 2012-07-09 | 277.9 |
| 43 | 2456400 | 2013-04-17 | 277.97 |
| 45 | 2456957 | 2014-10-26 | 277.76 |
| 46 | 2457227 | 2015-07-23 | 277.78 |
| 47 | 2457511 | 2016-05-02 | 277.65 |
| 48 | 2457780 | 2017-01-26 | 277.54 |
| 49 | 2458060 | 2017-11-02 | 277.01 |
| 50 | 2458342 | 2018-08-11 | 277.13 |
| 51 | 2458619 | 2019-05-15 | 277.47 |
| 52 | 2458898 | 2020-02-18 | 277.01 |
| 53 | 2459172 | 2020-11-18 | 277.38 |
| 54 | 2459441 | 2021-08-14 | 277.12 |
| 55 | 2459727 | 2022-05-27 | 276.87 |
| 56 | 2460006 | 2023-03-02 | 276.93 |
| 57 | 2460274 | 2023-11-25 | 277.07 |
| 58 | 2460561 | 2024-09-07 | 277.8 |
| 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. |