| E | O (JD) | O (dat) | Period |
| -134 | 2398835 | 1855-09-08 | 332.15 |
| -125 | 2401793 | 1863-10-14 | 332.64 |
| -124 | 2402130 | 1864-09-15 | 332.31 |
| -123 | 2402463 | 1865-08-14 | 331.08 |
| -122 | 2402800 | 1866-07-17 | 332 |
| -121 | 2403137 | 1867-06-19 | 332.29 |
| -120 | 2403461 | 1868-05-08 | 330.66 |
| -119 | 2403800 | 1869-04-12 | 330.39 |
| -117 | 2404464 | 1871-02-05 | 330.17 |
| -115 | 2405108 | 1872-11-10 | 330.42 |
| -114 | 2405437 | 1873-10-05 | 329.8 |
| -113 | 2405773 | 1874-09-06 | 328.7 |
| -112 | 2406107 | 1875-08-06 | 330.1 |
| -110 | 2406769 | 1877-05-29 | 331.78 |
| -109 | 2407088 | 1878-04-13 | 331.72 |
| -107 | 2407750 | 1880-02-04 | 331.39 |
| -106 | 2408094 | 1881-01-13 | 331.88 |
| -105 | 2408423 | 1881-12-08 | 333.68 |
| -104 | 2408758 | 1882-11-08 | 334.4 |
| -103 | 2409087 | 1883-10-03 | 333.43 |
| -102 | 2409431 | 1884-09-11 | 332.18 |
| -101 | 2409765 | 1885-08-11 | 331.3 |
| -100 | 2410089 | 1886-07-01 | 331.05 |
| -99 | 2410423 | 1887-05-31 | 330.6 |
| -95 | 2411741 | 1891-01-08 | 329.8 |
| -94 | 2412066 | 1891-11-29 | 329.7 |
| -93 | 2412400 | 1892-10-28 | 330.1 |
| -92 | 2412730 | 1893-09-23 | 330.94 |
| -91 | 2413062 | 1894-08-21 | 332.07 |
| -90 | 2413386 | 1895-07-11 | 331.63 |
| -89 | 2413728 | 1896-06-17 | 332.43 |
| -88 | 2414062 | 1897-05-17 | 333.87 |
| -87 | 2414394 | 1898-04-14 | 334.69 |
| -86 | 2414715 | 1899-03-01 | 333.75 |
| -85 | 2415069 | 1900-02-18 | 334.18 |
| -83 | 2415731 | 1901-12-12 | 336.38 |
| -82 | 2416072 | 1902-11-18 | 338.44 |
| -81 | 2416382 | 1903-09-24 | 338.19 |
| -80 | 2416755 | 1904-10-01 | 337.46 |
| -79 | 2417083 | 1905-08-25 | 338.36 |
| -78 | 2417441 | 1906-08-18 | 338.21 |
| -77 | 2417754 | 1907-06-27 | 336.31 |
| -76 | 2418108 | 1908-06-15 | 333.62 |
| -75 | 2418432 | 1909-05-05 | 331.81 |
| -73 | 2419095 | 1911-02-27 | 330.44 |
| -72 | 2419423 | 1912-01-21 | 329.26 |
| -71 | 2419753 | 1912-12-16 | 328.19 |
| -70 | 2420080 | 1913-11-08 | 328.79 |
| -69 | 2420402 | 1914-09-26 | 329.57 |
| -68 | 2420728 | 1915-08-18 | 330.43 |
| -67 | 2421063 | 1916-07-18 | 330.93 |
| -66 | 2421396 | 1917-06-16 | 331.43 |
| -65 | 2421736 | 1918-05-22 | 331.63 |
| -64 | 2422066 | 1919-04-17 | 331.57 |
| -63 | 2422400 | 1920-03-16 | 331.15 |
| -62 | 2422722 | 1921-02-01 | 330.43 |
| -61 | 2423051 | 1921-12-27 | 329.78 |
| -60 | 2423382 | 1922-11-23 | 329.13 |
| -59 | 2423713 | 1923-10-20 | 329.21 |
| -58 | 2424045 | 1924-09-16 | 330.72 |
| -57 | 2424374 | 1925-08-11 | 331.43 |
| -56 | 2424700 | 1926-07-03 | 332.21 |
| -55 | 2425031 | 1927-05-30 | 332.78 |
| -54 | 2425372 | 1928-05-05 | 333.07 |
| -53 | 2425701 | 1929-03-30 | 334.43 |
| -52 | 2426045 | 1930-03-09 | 335.36 |
| -51 | 2426372 | 1931-01-30 | 334.78 |
| -50 | 2426710 | 1932-01-03 | 334.13 |
| -49 | 2427046 | 1932-12-04 | 333.28 |
| -48 | 2427380 | 1933-11-03 | 332.86 |
| -47 | 2427710 | 1934-09-29 | 333.36 |
| -46 | 2428041 | 1935-08-26 | 333.5 |
| -45 | 2428371 | 1936-07-21 | 333.92 |
| -44 | 2428706 | 1937-06-21 | 334.36 |
| -43 | 2429043 | 1938-05-24 | 334.72 |
| -42 | 2429382 | 1939-04-28 | 334.51 |
| -41 | 2429719 | 1940-03-30 | 333.57 |
| -40 | 2430052 | 1941-02-26 | 332.06 |
| -39 | 2430385 | 1942-01-25 | 330.28 |
| -38 | 2430710 | 1942-12-16 | 329.65 |
| -37 | 2431037 | 1943-11-08 | 329.79 |
| -36 | 2431361 | 1944-09-27 | 328.64 |
| -35 | 2431688 | 1945-08-20 | 328.28 |
| -34 | 2432028 | 1946-07-26 | 329.86 |
| -33 | 2432360 | 1947-06-23 | 331.58 |
| -32 | 2432678 | 1948-05-06 | 332.43 |
| -31 | 2433013 | 1949-04-06 | 331.86 |
| -30 | 2433352 | 1950-03-11 | 330.92 |
| -29 | 2433688 | 1951-02-10 | 331.5 |
| -28 | 2434015 | 1952-01-03 | 331.29 |
| -27 | 2434347 | 1952-11-30 | 329.93 |
| -26 | 2434674 | 1953-10-23 | 329.64 |
| -25 | 2435005 | 1954-09-19 | 329.63 |
| -24 | 2435324 | 1955-08-04 | 329.5 |
| -23 | 2435660 | 1956-07-05 | 330.08 |
| -22 | 2435995 | 1957-06-05 | 330.72 |
| -21 | 2436323 | 1958-04-29 | 330.93 |
| -20 | 2436652 | 1959-03-24 | 330.71 |
| -19 | 2436990 | 1960-02-25 | 330.14 |
| -18 | 2437319 | 1961-01-19 | 330.36 |
| -17 | 2437643 | 1961-12-09 | 331.43 |
| -16 | 2437971 | 1962-11-02 | 330.86 |
| -15 | 2438306 | 1963-10-03 | 329.71 |
| -14 | 2438637 | 1964-08-29 | 330.36 |
| -13 | 2438978 | 1965-08-05 | 331.58 |
| -12 | 2439296 | 1966-06-19 | 332.22 |
| -11 | 2439629 | 1967-05-18 | 331.57 |
| -10 | 2439958 | 1968-04-11 | 330.35 |
| -9 | 2440298 | 1969-03-17 | 331.07 |
| -8 | 2440630 | 1970-02-12 | 332.22 |
| -7 | 2440955 | 1971-01-03 | 332.01 |
| -6 | 2441285 | 1971-11-29 | 332.5 |
| -5 | 2441624 | 1972-11-02 | 332.92 |
| -4 | 2441952 | 1973-09-26 | 333.78 |
| -3 | 2442283 | 1974-08-23 | 335.22 |
| -2 | 2442628 | 1975-08-03 | 335.79 |
| -1 | 2442961 | 1976-07-01 | 336.28 |
| 0 | 2443297 | 1977-06-02 | 337.56 |
| 1 | 2443636 | 1978-05-07 | 336.86 |
| 2 | 2443974 | 1979-04-10 | 335.43 |
| 3 | 2444310 | 1980-03-11 | 335.08 |
| 4 | 2444651 | 1981-02-15 | 334.78 |
| 5 | 2444976 | 1982-01-06 | 334.35 |
| 6 | 2445309 | 1982-12-05 | 333.5 |
| 7 | 2445640 | 1983-11-01 | 332.51 |
| 8 | 2445980 | 1984-10-06 | 332.51 |
| 9 | 2446311 | 1985-09-02 | 333 |
| 10 | 2446642 | 1986-07-30 | 332.28 |
| 11 | 2446974 | 1987-06-27 | 330.43 |
| 12 | 2447308 | 1988-05-26 | 329.36 |
| 13 | 2447639 | 1989-04-22 | 329.79 |
| 14 | 2447962 | 1990-03-11 | 329.36 |
| 15 | 2448284 | 1991-01-27 | 328.28 |
| 16 | 2448618 | 1991-12-27 | 327.36 |
| 17 | 2448952 | 1992-11-25 | 327.43 |
| 18 | 2449275 | 1993-10-14 | 327.79 |
| 19 | 2449603 | 1994-09-07 | 327 |
| 20 | 2449927 | 1995-07-28 | 325.85 |
| 21 | 2450258 | 1996-06-23 | 325.78 |
| 22 | 2450577 | 1997-05-08 | 326.65 |
| 23 | 2450903 | 1998-03-30 | 327.22 |
| 24 | 2451229 | 1999-02-19 | 327.28 |
| 25 | 2451559 | 2000-01-15 | 327.92 |
| 26 | 2451892 | 2000-12-13 | 329.14 |
| 27 | 2452219 | 2001-11-05 | 329.58 |
| 28 | 2452548 | 2002-09-30 | 328.86 |
| 29 | 2452878 | 2003-08-26 | 328.14 |
| 30 | 2453210 | 2004-07-23 | 328.85 |
| 31 | 2453536 | 2005-06-14 | 330.07 |
| 32 | 2453856 | 2006-04-30 | 331.43 |
| 33 | 2454189 | 2007-03-29 | 331.79 |
| 34 | 2454526 | 2008-02-29 | 331.36 |
| 35 | 2454862 | 2009-01-30 | 333.13 |
| 36 | 2455204 | 2010-01-07 | 334.93 |
| 37 | 2455529 | 2010-11-28 | 335.43 |
| 38 | 2455856 | 2011-10-21 | 335.58 |
| 39 | 2456200 | 2012-09-29 | 334.43 |
| 40 | 2456534 | 2013-08-29 | 333.92 |
| 41 | 2456877 | 2014-08-07 | 335.28 |
| 42 | 2457209 | 2015-07-05 | 335.36 |
| 43 | 2457539 | 2016-05-30 | 335.15 |
| 44 | 2457869 | 2017-04-25 | 335.28 |
| 45 | 2458210 | 2018-04-01 | 334.92 |
| 46 | 2458541 | 2019-02-26 | 335.93 |
| 47 | 2458885 | 2020-02-05 | 337.07 |
| 48 | 2459220 | 2021-01-05 | 337.12 |
| 49 | 2459555 | 2021-12-06 | 337.83 |
| 50 | 2459896 | 2022-11-12 | 339.19 |
| 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. |