| E | O (JD) | O (dat) | Period |
| -137 | 2411230 | 1889-08-15 | 179.66 |
| -135 | 2411575 | 1890-07-26 | 179.84 |
| -131 | 2412310 | 1892-07-30 | 180.27 |
| -129 | 2412665 | 1893-07-20 | 180.06 |
| -127 | 2413020 | 1894-07-10 | 180.06 |
| -125 | 2413380 | 1895-07-05 | 179.96 |
| -123 | 2413745 | 1896-07-04 | 180.08 |
| -121 | 2414115 | 1897-07-09 | 179.9 |
| -119 | 2414460 | 1898-06-19 | 180.26 |
| -118 | 2414645 | 1898-12-21 | 180.46 |
| -117 | 2414820 | 1899-06-14 | 180.29 |
| -116 | 2415000 | 1899-12-11 | 180.22 |
| -115 | 2415190 | 1900-06-19 | 180.29 |
| -113 | 2415550 | 1901-06-14 | 180.98 |
| -111 | 2415910 | 1902-06-09 | 181.3 |
| -110 | 2416085 | 1902-12-01 | 181.48 |
| -109 | 2416270 | 1903-06-04 | 181.56 |
| -108 | 2416450 | 1903-12-01 | 181.81 |
| -107 | 2416636 | 1904-06-04 | 181.55 |
| -105 | 2417005 | 1905-06-08 | 181.28 |
| -104 | 2417180 | 1905-11-30 | 181.31 |
| -103 | 2417365 | 1906-06-03 | 180.92 |
| -101 | 2417735 | 1907-06-08 | 181.31 |
| -98 | 2418260 | 1908-11-14 | 181.25 |
| -97 | 2418440 | 1909-05-13 | 181.2 |
| -96 | 2418630 | 1909-11-19 | 181.36 |
| -94 | 2418985 | 1910-11-09 | 181.38 |
| -88 | 2420090 | 1913-11-18 | 181.61 |
| -86 | 2420445 | 1914-11-08 | 181.81 |
| -84 | 2420805 | 1915-11-03 | 181.81 |
| -83 | 2420990 | 1916-05-06 | 181.6 |
| -82 | 2421170 | 1916-11-02 | 181.69 |
| -80 | 2421540 | 1917-11-07 | 181.44 |
| -76 | 2422255 | 1919-10-23 | 181.52 |
| -70 | 2423355 | 1922-10-27 | 181.46 |
| -68 | 2423710 | 1923-10-17 | 181.35 |
| -66 | 2424080 | 1924-10-21 | 181.28 |
| -64 | 2424435 | 1925-10-11 | 181.21 |
| -62 | 2424800 | 1926-10-11 | 181.28 |
| -60 | 2425160 | 1927-10-06 | 181.08 |
| -58 | 2425523 | 1928-10-03 | 181.13 |
| -56 | 2425885 | 1929-09-30 | 181.19 |
| -54 | 2426250 | 1930-09-30 | 181.16 |
| -52 | 2426611 | 1931-09-26 | 181.1 |
| -50 | 2426975 | 1932-09-24 | 181.17 |
| -48 | 2427333 | 1933-09-17 | 181.25 |
| -46 | 2427703 | 1934-09-22 | 181.19 |
| -44 | 2428054 | 1935-09-08 | 181.2 |
| -42 | 2428421 | 1936-09-09 | 181.37 |
| -40 | 2428786 | 1937-09-09 | 181.18 |
| -38 | 2429152 | 1938-09-10 | 181.24 |
| -36 | 2429508 | 1939-09-01 | 181.24 |
| -34 | 2429874 | 1940-09-01 | 181.1 |
| -32 | 2430241 | 1941-09-03 | 180.87 |
| -30 | 2430590 | 1942-08-18 | 180.71 |
| -28 | 2430960 | 1943-08-23 | 180.38 |
| -26 | 2431325 | 1944-08-22 | 180.53 |
| -24 | 2431673 | 1945-08-05 | 180.4 |
| -22 | 2432042 | 1946-08-09 | 180.27 |
| -20 | 2432402 | 1947-08-04 | 180.74 |
| -18 | 2432753 | 1948-07-20 | 180.69 |
| -16 | 2433128 | 1949-07-30 | 180.59 |
| -14 | 2433484 | 1950-07-21 | 180.66 |
| -12 | 2433840 | 1951-07-12 | 180.55 |
| -3 | 2435480 | 1956-01-07 | 180.53 |
| -2 | 2435655 | 1956-06-30 | 180.48 |
| -1 | 2435825 | 1956-12-17 | 180.23 |
| 0 | 2436008 | 1957-06-18 | 180.24 |
| 1 | 2436190 | 1957-12-17 | 180.17 |
| 2 | 2436367 | 1958-06-12 | 179.85 |
| 3 | 2436545 | 1958-12-07 | 181.03 |
| 4 | 2436730 | 1959-06-10 | 181.65 |
| 5 | 2436905 | 1959-12-02 | 181.92 |
| 6 | 2437090 | 1960-06-04 | 182.03 |
| 7 | 2437281 | 1960-12-12 | 182.03 |
| 8 | 2437465 | 1961-06-14 | 182.68 |
| 9 | 2437640 | 1961-12-06 | 182.7 |
| 10 | 2437825 | 1962-06-09 | 182.67 |
| 11 | 2438002 | 1962-12-03 | 181.93 |
| 12 | 2438180 | 1963-05-30 | 181.92 |
| 13 | 2438380 | 1963-12-16 | 182.15 |
| 14 | 2438555 | 1964-06-08 | 182.23 |
| 15 | 2438734 | 1964-12-04 | 181.72 |
| 16 | 2438909 | 1965-05-28 | 181.57 |
| 17 | 2439104 | 1965-12-09 | 181.35 |
| 18 | 2439283 | 1966-06-06 | 181 |
| 19 | 2439459 | 1966-11-29 | 180.97 |
| 20 | 2439635 | 1967-05-24 | 180.9 |
| 21 | 2439820 | 1967-11-25 | 180.84 |
| 22 | 2440005 | 1968-05-28 | 180.33 |
| 23 | 2440189 | 1968-11-28 | 180.48 |
| 25 | 2440540 | 1969-11-14 | 180.34 |
| 27 | 2440905 | 1970-11-14 | 180.11 |
| 29 | 2441268 | 1971-11-12 | 180.1 |
| 31 | 2441623 | 1972-11-01 | 179.89 |
| 33 | 2441988 | 1973-11-01 | 179.92 |
| 35 | 2442341 | 1974-10-20 | 180.14 |
| 37 | 2442700 | 1975-10-14 | 180.1 |
| 41 | 2443430 | 1977-10-13 | 180.41 |
| 43 | 2443780 | 1978-09-28 | 180.85 |
| 45 | 2444145 | 1979-09-28 | 181.19 |
| 47 | 2444510 | 1980-09-27 | 181.54 |
| 49 | 2444868 | 1981-09-20 | 181.76 |
| 51 | 2445242 | 1982-09-29 | 181.84 |
| 53 | 2445608 | 1983-09-30 | 182.04 |
| 55 | 2445972 | 1984-09-28 | 181.84 |
| 57 | 2446330 | 1985-09-21 | 181.13 |
| 59 | 2446695 | 1986-09-21 | 180.63 |
| 61 | 2447055 | 1987-09-16 | 180.19 |
| 63 | 2447420 | 1988-09-15 | 179.69 |
| 65 | 2447780 | 1989-09-10 | 179.06 |
| 67 | 2448120 | 1990-08-16 | 178.94 |
| 69 | 2448486 | 1991-08-17 | 178.83 |
| 71 | 2448854 | 1992-08-19 | 178.98 |
| 73 | 2449200 | 1993-07-31 | 179.2 |
| 75 | 2449547 | 1994-07-13 | 179.33 |
| 77 | 2449920 | 1995-07-21 | 179.52 |
| 86 | 2451530 | 1999-12-17 | 179.52 |
| 88 | 2451895 | 2000-12-16 | 179.93 |
| 90 | 2452260 | 2001-12-16 | 180.53 |
| 92 | 2452610 | 2002-12-01 | 181.21 |
| 94 | 2452970 | 2003-11-26 | 181.37 |
| 96 | 2453335 | 2004-11-25 | 181.79 |
| 100 | 2454075 | 2006-12-05 | 181.9 |
| 102 | 2454440 | 2007-12-05 | 181.98 |
| 110 | 2455900 | 2011-12-04 | 182.09 |
| 112 | 2456250 | 2012-11-18 | 182.01 |
| 113 | 2456430 | 2013-05-17 | 181.69 |
| 114 | 2456620 | 2013-11-23 | 181.12 |
| 115 | 2456798 | 2014-05-20 | 180.63 |
| 116 | 2456976 | 2014-11-14 | 179.57 |
| 117 | 2457160 | 2015-05-17 | 179.36 |
| 118 | 2457335 | 2015-11-08 | 179.03 |
| 119 | 2457515 | 2016-05-06 | 178.69 |
| 120 | 2457689 | 2016-10-27 | 178.67 |
| 121 | 2457870 | 2017-04-26 | 178.77 |
| 122 | 2458044 | 2017-10-17 | 179.09 |
| 123 | 2458230 | 2018-04-21 | 178.82 |
| 124 | 2458410 | 2018-10-18 | 179.31 |
| 125 | 2458585 | 2019-04-11 | 179.89 |
| 126 | 2458767 | 2019-10-10 | 179.93 |
| 128 | 2459130 | 2020-10-07 | 180.06 |
| 130 | 2459473 | 2021-09-15 | 179.87 |
| 131 | 2459670 | 2022-03-31 | 180.05 |
| 132 | 2459854 | 2022-10-01 | 180.43 |
| 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. |