| E | O (JD) | O (dat) | Period |
| -128 | 2411536 | 1890-06-17 | 217.93 |
| -121 | 2413065 | 1894-08-24 | 218.19 |
| -118 | 2413726 | 1896-06-15 | 218.08 |
| -116 | 2414153 | 1897-08-16 | 218.19 |
| -114 | 2414591 | 1898-10-28 | 218.44 |
| -112 | 2415031 | 1900-01-11 | 217.71 |
| -111 | 2415243 | 1900-08-11 | 217.24 |
| -109 | 2415686 | 1901-10-28 | 218.3 |
| -108 | 2415905 | 1902-06-04 | 218.42 |
| -107 | 2416111 | 1902-12-27 | 218.14 |
| -106 | 2416330 | 1903-08-03 | 217.6 |
| -104 | 2416780 | 1904-10-26 | 217.37 |
| -103 | 2416992 | 1905-05-26 | 218.12 |
| -99 | 2417863 | 1907-10-14 | 218.57 |
| -91 | 2419594 | 1912-07-10 | 218.53 |
| -86 | 2420692 | 1915-07-13 | 218.42 |
| -62 | 2425938 | 1929-11-22 | 218.44 |
| -61 | 2426174 | 1930-07-16 | 218.58 |
| -59 | 2426604 | 1931-09-19 | 218.7 |
| -58 | 2426826 | 1932-04-28 | 218.53 |
| -37 | 2431402 | 1944-11-07 | 218.11 |
| -36 | 2431629 | 1945-06-22 | 217.85 |
| -35 | 2431839 | 1946-01-18 | 217.81 |
| -34 | 2432055 | 1946-08-22 | 217.38 |
| -33 | 2432271 | 1947-03-26 | 216 |
| -32 | 2432489 | 1947-10-30 | 215.64 |
| -31 | 2432703 | 1948-05-31 | 216.86 |
| -30 | 2432916 | 1948-12-30 | 218.14 |
| -29 | 2433139 | 1949-08-10 | 219.14 |
| -28 | 2433348 | 1950-03-07 | 219.29 |
| -27 | 2433582 | 1950-10-27 | 219.29 |
| -26 | 2433798 | 1951-05-31 | 219.64 |
| -25 | 2434030 | 1952-01-18 | 220.36 |
| -24 | 2434232 | 1952-08-07 | 220 |
| -23 | 2434457 | 1953-03-20 | 218.5 |
| -22 | 2434673 | 1953-10-22 | 217.71 |
| -21 | 2434899 | 1954-06-05 | 218.29 |
| -20 | 2435111 | 1955-01-03 | 219.86 |
| -19 | 2435328 | 1955-08-08 | 219.5 |
| -18 | 2435548 | 1956-03-15 | 219.29 |
| -17 | 2435770 | 1956-10-23 | 219.71 |
| -16 | 2435997 | 1957-06-07 | 220.21 |
| -15 | 2436206 | 1958-01-02 | 220.5 |
| -14 | 2436436 | 1958-08-20 | 219.93 |
| -13 | 2436650 | 1959-03-22 | 218.93 |
| -12 | 2436872 | 1959-10-30 | 219.29 |
| -11 | 2437091 | 1960-06-05 | 219.64 |
| -10 | 2437306 | 1961-01-06 | 219.5 |
| -9 | 2437526 | 1961-08-14 | 219.79 |
| -8 | 2437747 | 1962-03-23 | 219.64 |
| -7 | 2437970 | 1962-11-01 | 219.86 |
| -6 | 2438189 | 1963-06-08 | 220.5 |
| -5 | 2438410 | 1964-01-15 | 221.36 |
| -4 | 2438628 | 1964-08-20 | 221.07 |
| -3 | 2438847 | 1965-03-27 | 220.79 |
| -2 | 2439072 | 1965-11-07 | 221.57 |
| -1 | 2439300 | 1966-06-23 | 221.93 |
| 0 | 2439512 | 1967-01-21 | 222.5 |
| 1 | 2439738 | 1967-09-04 | 222.43 |
| 2 | 2439963 | 1968-04-16 | 221.79 |
| 3 | 2440182 | 1968-11-21 | 221.21 |
| 4 | 2440408 | 1969-07-05 | 221.43 |
| 5 | 2440625 | 1970-02-07 | 220.5 |
| 6 | 2440852 | 1970-09-22 | 218.57 |
| 7 | 2441057 | 1971-04-15 | 217.86 |
| 8 | 2441293 | 1971-12-07 | 219.29 |
| 9 | 2441495 | 1972-06-26 | 219.93 |
| 10 | 2441710 | 1973-01-27 | 220.07 |
| 11 | 2441930 | 1973-09-04 | 220.36 |
| 12 | 2442173 | 1974-05-05 | 220.43 |
| 13 | 2442383 | 1974-12-01 | 221.71 |
| 14 | 2442607 | 1975-07-13 | 221.71 |
| 15 | 2442828 | 1976-02-19 | 219.86 |
| 16 | 2443046 | 1976-09-24 | 218.71 |
| 17 | 2443263 | 1977-04-29 | 218.93 |
| 18 | 2443481 | 1977-12-03 | 218.36 |
| 19 | 2443700 | 1978-07-10 | 218 |
| 20 | 2443918 | 1979-02-13 | 217.93 |
| 21 | 2444137 | 1979-09-20 | 217.21 |
| 22 | 2444355 | 1980-04-25 | 216.93 |
| 23 | 2444571 | 1980-11-27 | 217.57 |
| 24 | 2444789 | 1981-07-03 | 217.29 |
| 25 | 2444996 | 1982-01-26 | 217.57 |
| 26 | 2445222 | 1982-09-09 | 218.29 |
| 27 | 2445442 | 1983-04-17 | 218.21 |
| 28 | 2445655 | 1983-11-16 | 219.71 |
| 29 | 2445883 | 1984-07-01 | 220.64 |
| 30 | 2446099 | 1985-02-02 | 220.5 |
| 31 | 2446316 | 1985-09-07 | 221.64 |
| 32 | 2446545 | 1986-04-24 | 222.71 |
| 33 | 2446762 | 1986-11-27 | 222.86 |
| 34 | 2446989 | 1987-07-12 | 221.71 |
| 35 | 2447211 | 1988-02-19 | 220.43 |
| 36 | 2447445 | 1988-10-10 | 220.57 |
| 37 | 2447657 | 1989-05-10 | 220.29 |
| 38 | 2447862 | 1989-12-01 | 219.07 |
| 39 | 2448085 | 1990-07-12 | 218 |
| 40 | 2448310 | 1991-02-22 | 218.14 |
| 41 | 2448525 | 1991-09-25 | 219.57 |
| 42 | 2448742 | 1992-04-29 | 219.5 |
| 43 | 2448966 | 1992-12-09 | 218.71 |
| 44 | 2449190 | 1993-07-21 | 218.57 |
| 45 | 2449403 | 1994-02-19 | 219 |
| 46 | 2449617 | 1994-09-21 | 219.29 |
| 47 | 2449840 | 1995-05-02 | 218.57 |
| 48 | 2450055 | 1995-12-03 | 218.29 |
| 49 | 2450278 | 1996-07-13 | 219.21 |
| 50 | 2450500 | 1997-02-20 | 219.64 |
| 51 | 2450716 | 1997-09-24 | 219.57 |
| 52 | 2450933 | 1998-04-29 | 219.79 |
| 53 | 2451156 | 1998-12-08 | 219.64 |
| 54 | 2451376 | 1999-07-16 | 219.5 |
| 55 | 2451593 | 2000-02-18 | 220.21 |
| 56 | 2451817 | 2000-09-29 | 220.14 |
| 57 | 2452036 | 2001-05-06 | 219.29 |
| 58 | 2452253 | 2001-12-09 | 219.5 |
| 59 | 2452479 | 2002-07-23 | 219.64 |
| 60 | 2452692 | 2003-02-21 | 219.86 |
| 61 | 2452910 | 2003-09-27 | 221 |
| 62 | 2453132 | 2004-05-06 | 220.29 |
| 63 | 2453353 | 2004-12-13 | 219.71 |
| 64 | 2453578 | 2005-07-26 | 220.36 |
| 65 | 2453805 | 2006-03-10 | 220.36 |
| 66 | 2454011 | 2006-10-02 | 220.07 |
| 67 | 2454236 | 2007-05-15 | 220 |
| 68 | 2454451 | 2007-12-16 | 219.93 |
| 69 | 2454676 | 2008-07-28 | 220 |
| 71 | 2455110 | 2009-10-05 | 220.43 |
| 79 | 2456881 | 2014-08-11 | 220.23 |
| 80 | 2457100 | 2015-03-18 | 219.73 |
| 81 | 2457316 | 2015-10-20 | 219.76 |
| 82 | 2457544 | 2016-06-04 | 219.43 |
| 83 | 2457750 | 2016-12-27 | 218.07 |
| 84 | 2457969 | 2017-08-03 | 218.14 |
| 85 | 2458190 | 2018-03-12 | 217.43 |
| 86 | 2458409 | 2018-10-17 | 217.5 |
| 87 | 2458625 | 2019-05-21 | 218.36 |
| 88 | 2458845 | 2019-12-27 | 217.43 |
| 89 | 2459059 | 2020-07-28 | 217.43 |
| 90 | 2459280 | 2021-03-06 | 218.02 |
| 91 | 2459496 | 2021-10-08 | 217.31 |
| 92 | 2459707 | 2022-05-07 | 217.58 |
| 93 | 2459936 | 2022-12-22 | 218.3 |
| 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. |