| E | O (JD) | O (dat) | Period |
| -150 | 2398608 | 1855-01-24 | 287.7 |
| -149 | 2398852 | 1855-09-25 | 288.29 |
| -147 | 2399450 | 1857-05-15 | 288.3 |
| -146 | 2399739 | 1858-02-28 | 288.22 |
| -145 | 2400023 | 1858-12-09 | 288.59 |
| -142 | 2400893 | 1861-04-27 | 288.95 |
| -141 | 2401185 | 1862-02-13 | 289.68 |
| -140 | 2401469 | 1862-11-24 | 289.7 |
| -137 | 2402332 | 1865-04-05 | 289.68 |
| -136 | 2402632 | 1866-01-30 | 289.38 |
| -132 | 2403791 | 1869-04-03 | 288.71 |
| -131 | 2404076 | 1870-01-13 | 288.45 |
| -130 | 2404382 | 1870-11-15 | 288.18 |
| -127 | 2405234 | 1873-03-16 | 288.33 |
| -126 | 2405509 | 1873-12-16 | 288.35 |
| -118 | 2407815 | 1880-04-09 | 288.71 |
| -117 | 2408106 | 1881-01-25 | 288.69 |
| -113 | 2409254 | 1884-03-18 | 288.74 |
| -108 | 2410718 | 1888-03-21 | 289.11 |
| -107 | 2411008 | 1889-01-05 | 289.45 |
| -103 | 2412178 | 1892-03-20 | 289.79 |
| -99 | 2413308 | 1895-04-24 | 289.87 |
| -98 | 2413604 | 1896-02-14 | 290.47 |
| -97 | 2413895 | 1896-12-01 | 290.03 |
| -94 | 2414769 | 1899-04-24 | 290.3 |
| -93 | 2415069 | 1900-02-18 | 290.91 |
| -92 | 2415355 | 1900-12-01 | 292.26 |
| -91 | 2415675 | 1901-10-17 | 292.01 |
| -90 | 2415925 | 1902-06-24 | 291.5 |
| -89 | 2416232 | 1903-04-27 | 290.14 |
| -88 | 2416527 | 1904-02-16 | 290.34 |
| -87 | 2416815 | 1904-11-30 | 291.18 |
| -86 | 2417108 | 1905-09-19 | 289.42 |
| -85 | 2417390 | 1906-06-28 | 289.69 |
| -84 | 2417667 | 1907-04-01 | 288.37 |
| -83 | 2417988 | 1908-02-16 | 288.45 |
| -82 | 2418286 | 1908-12-10 | 288.67 |
| -80 | 2418822 | 1910-05-30 | 288.46 |
| -79 | 2419117 | 1911-03-21 | 288.34 |
| -78 | 2419406 | 1912-01-04 | 287.3 |
| -77 | 2419710 | 1912-11-03 | 285.55 |
| -75 | 2420286 | 1914-06-02 | 286.14 |
| -74 | 2420566 | 1915-03-09 | 287.24 |
| -73 | 2420852 | 1915-12-20 | 286.94 |
| -72 | 2421120 | 1916-09-13 | 287.14 |
| -71 | 2421400 | 1917-06-20 | 287.55 |
| -70 | 2421713 | 1918-04-29 | 288.96 |
| -69 | 2421994 | 1919-02-04 | 290.97 |
| -68 | 2422289 | 1919-11-26 | 292.53 |
| -67 | 2422584 | 1920-09-16 | 294.4 |
| -66 | 2422878 | 1921-07-07 | 294.77 |
| -65 | 2423168 | 1922-04-23 | 294.35 |
| -64 | 2423471 | 1923-02-20 | 295.07 |
| -63 | 2423762 | 1923-12-08 | 294.61 |
| -62 | 2424065 | 1924-10-06 | 294.25 |
| -61 | 2424353 | 1925-07-21 | 293.48 |
| -60 | 2424646 | 1926-05-10 | 292.5 |
| -59 | 2424945 | 1927-03-05 | 290.96 |
| -58 | 2425228 | 1927-12-13 | 290.01 |
| -57 | 2425523 | 1928-10-03 | 289.18 |
| -56 | 2425807 | 1929-07-14 | 288.48 |
| -55 | 2426094 | 1930-04-27 | 287.04 |
| -54 | 2426377 | 1931-02-04 | 285.57 |
| -53 | 2426668 | 1931-11-22 | 284.9 |
| -52 | 2426961 | 1932-09-10 | 284.02 |
| -51 | 2427240 | 1933-06-16 | 283.72 |
| -50 | 2427513 | 1934-03-16 | 283.48 |
| -49 | 2427793 | 1934-12-21 | 283.14 |
| -48 | 2428081 | 1935-10-05 | 282.35 |
| -47 | 2428364 | 1936-07-14 | 282.6 |
| -46 | 2428650 | 1937-04-26 | 282.8 |
| -45 | 2428936 | 1938-02-06 | 283.3 |
| -44 | 2429215 | 1938-11-12 | 283.48 |
| -43 | 2429490 | 1939-08-14 | 283.05 |
| -42 | 2429786 | 1940-06-05 | 283.59 |
| -41 | 2430057 | 1941-03-03 | 283.85 |
| -40 | 2430348 | 1941-12-19 | 284.08 |
| -39 | 2430635 | 1942-10-02 | 284.36 |
| -38 | 2430910 | 1943-07-04 | 284.9 |
| -37 | 2431209 | 1944-04-28 | 284.52 |
| -36 | 2431489 | 1945-02-02 | 284.9 |
| -35 | 2431770 | 1945-11-10 | 285.35 |
| -34 | 2432052 | 1946-08-19 | 285.58 |
| -33 | 2432346 | 1947-06-09 | 285.84 |
| -32 | 2432622 | 1948-03-11 | 285.75 |
| -31 | 2432910 | 1948-12-24 | 286.74 |
| -30 | 2433211 | 1949-10-21 | 287.28 |
| -29 | 2433488 | 1950-07-25 | 287.64 |
| -28 | 2433772 | 1951-05-05 | 287.74 |
| -27 | 2434062 | 1952-02-19 | 288.18 |
| -26 | 2434357 | 1952-12-10 | 288 |
| -25 | 2434641 | 1953-09-20 | 287.61 |
| -24 | 2434930 | 1954-07-06 | 287.07 |
| -23 | 2435218 | 1955-04-20 | 285.96 |
| -22 | 2435506 | 1956-02-02 | 285.03 |
| -21 | 2435793 | 1956-11-15 | 284.07 |
| -20 | 2436077 | 1957-08-26 | 284.64 |
| -19 | 2436346 | 1958-05-22 | 285.37 |
| -18 | 2436628 | 1959-02-28 | 287.06 |
| -17 | 2436919 | 1959-12-16 | 288.77 |
| -16 | 2437200 | 1960-09-22 | 290.35 |
| -15 | 2437507 | 1961-07-26 | 292.28 |
| -14 | 2437800 | 1962-05-15 | 294.35 |
| -13 | 2438106 | 1963-03-17 | 295.46 |
| -12 | 2438396 | 1964-01-01 | 296.25 |
| -11 | 2438683 | 1964-10-14 | 296.75 |
| -10 | 2438982 | 1965-08-09 | 296.65 |
| -9 | 2439282 | 1966-06-05 | 297.21 |
| -8 | 2439579 | 1967-03-29 | 297.88 |
| -7 | 2439880 | 1968-01-24 | 300 |
| -6 | 2440175 | 1968-11-14 | 301.05 |
| -5 | 2440476 | 1969-09-11 | 301.54 |
| -4 | 2440777 | 1970-07-09 | 301.74 |
| -3 | 2441082 | 1971-05-10 | 302 |
| -2 | 2441403 | 1972-03-26 | 301.95 |
| -1 | 2441691 | 1973-01-08 | 301.62 |
| 0 | 2441993 | 1973-11-06 | 300.9 |
| 1 | 2442290 | 1974-08-30 | 299.82 |
| 2 | 2442593 | 1975-06-29 | 298.04 |
| 3 | 2442892 | 1976-04-23 | 296.29 |
| 4 | 2443187 | 1977-02-12 | 295.89 |
| 5 | 2443486 | 1977-12-08 | 294.6 |
| 6 | 2443779 | 1978-09-27 | 293.21 |
| 7 | 2444063 | 1979-07-08 | 291.51 |
| 8 | 2444355 | 1980-04-25 | 289.73 |
| 9 | 2444654 | 1981-02-18 | 288.01 |
| 10 | 2444939 | 1981-11-30 | 286.25 |
| 11 | 2445224 | 1982-09-11 | 285 |
| 12 | 2445507 | 1983-06-21 | 284.1 |
| 13 | 2445785 | 1984-03-25 | 282.91 |
| 14 | 2446066 | 1984-12-31 | 281.31 |
| 15 | 2446346 | 1985-10-07 | 281.36 |
| 16 | 2446630 | 1986-07-18 | 280.95 |
| 17 | 2446915 | 1987-04-29 | 280.84 |
| 18 | 2447195 | 1988-02-03 | 280.72 |
| 19 | 2447462 | 1988-10-27 | 280.64 |
| 20 | 2447761 | 1989-08-22 | 280.7 |
| 21 | 2448030 | 1990-05-18 | 280.78 |
| 22 | 2448313 | 1991-02-25 | 281.07 |
| 23 | 2448591 | 1991-11-30 | 281.73 |
| 24 | 2448875 | 1992-09-09 | 282.15 |
| 25 | 2449159 | 1993-06-20 | 282.16 |
| 26 | 2449442 | 1994-03-30 | 283.75 |
| 27 | 2449725 | 1995-01-07 | 285.02 |
| 28 | 2450010 | 1995-10-19 | 286.14 |
| 29 | 2450288 | 1996-07-23 | 287.23 |
| 30 | 2450577 | 1997-05-08 | 288.34 |
| 31 | 2450876 | 1998-03-03 | 289.31 |
| 32 | 2451169 | 1998-12-21 | 290 |
| 33 | 2451454 | 1999-10-02 | 290.18 |
| 34 | 2451748 | 2000-07-22 | 290.41 |
| 35 | 2452039 | 2001-05-09 | 290.17 |
| 36 | 2452328 | 2002-02-22 | 289.94 |
| 37 | 2452616 | 2002-12-07 | 290.21 |
| 38 | 2452900 | 2003-09-17 | 290.54 |
| 39 | 2453194 | 2004-07-07 | 290.43 |
| 40 | 2453487 | 2005-04-26 | 290.95 |
| 41 | 2453780 | 2006-02-13 | 291.37 |
| 42 | 2454073 | 2006-12-03 | 291.39 |
| 43 | 2454362 | 2007-09-18 | 291.4 |
| 44 | 2454649 | 2008-07-01 | 290.82 |
| 45 | 2454949 | 2009-04-27 | 289.49 |
| 46 | 2455238 | 2010-02-10 | 288.16 |
| 47 | 2455522 | 2010-11-21 | 287.42 |
| 48 | 2455815 | 2011-09-10 | 287.05 |
| 49 | 2456101 | 2012-06-22 | 286.15 |
| 50 | 2456372 | 2013-03-20 | 285.39 |
| 51 | 2456656 | 2013-12-29 | 285.15 |
| 52 | 2456951 | 2014-10-20 | 284.95 |
| 53 | 2457242 | 2015-08-07 | 284.69 |
| 54 | 2457517 | 2016-05-08 | 284.92 |
| 55 | 2457807 | 2017-02-22 | 285.31 |
| 56 | 2458090 | 2017-12-02 | 285.5 |
| 57 | 2458372 | 2018-09-10 | 285.56 |
| 58 | 2458657 | 2019-06-22 | 286.21 |
| 59 | 2458943 | 2020-04-03 | 287.22 |
| 60 | 2459229 | 2021-01-14 | 287.45 |
| 61 | 2459525 | 2021-11-06 | 288.1 |
| 62 | 2459812 | 2022-08-20 | 288.82 |
| 63 | 2460102 | 2023-06-06 | 289.39 |
| 64 | 2460391 | 2024-03-21 | 289.89 |
| 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. |