| E | O (JD) | O (dat) | Period |
| -92 | 2410596 | 1887-11-20 | 325.15 |
| -83 | 2413533 | 1895-12-05 | 324.47 |
| -79 | 2414828 | 1899-06-22 | 323.79 |
| -78 | 2415159 | 1900-05-19 | 324.87 |
| -76 | 2415805 | 1902-02-24 | 325.21 |
| -75 | 2416120 | 1903-01-05 | 325.48 |
| -73 | 2416770 | 1904-10-16 | 325.58 |
| -72 | 2417100 | 1905-09-11 | 325.76 |
| -70 | 2417761 | 1907-07-04 | 326.1 |
| -69 | 2418086 | 1908-05-24 | 326.25 |
| -64 | 2419715 | 1912-11-08 | 326.19 |
| -61 | 2420696 | 1915-07-17 | 325.84 |
| -58 | 2421664 | 1918-03-11 | 325.97 |
| -57 | 2421992 | 1919-02-02 | 325.5 |
| -56 | 2422316 | 1919-12-23 | 324.09 |
| -55 | 2422646 | 1920-11-17 | 324 |
| -54 | 2422980 | 1921-10-17 | 324.21 |
| -53 | 2423284 | 1922-08-17 | 324.14 |
| -52 | 2423609 | 1923-07-08 | 324.06 |
| -51 | 2423935 | 1924-05-29 | 323.64 |
| -50 | 2424260 | 1925-04-19 | 325.29 |
| -49 | 2424586 | 1926-03-11 | 326.79 |
| -48 | 2424913 | 1927-02-01 | 326.64 |
| -47 | 2425244 | 1927-12-29 | 327.21 |
| -46 | 2425574 | 1928-11-23 | 327.43 |
| -45 | 2425894 | 1929-10-09 | 327.29 |
| -44 | 2426223 | 1930-09-03 | 326.79 |
| -43 | 2426553 | 1931-07-30 | 326.35 |
| -42 | 2426877 | 1932-06-18 | 326.86 |
| -41 | 2427204 | 1933-05-11 | 327.51 |
| -40 | 2427528 | 1934-03-31 | 326.94 |
| -39 | 2427859 | 1935-02-25 | 326.22 |
| -38 | 2428185 | 1936-01-17 | 326.93 |
| -37 | 2428517 | 1936-12-14 | 327.28 |
| -36 | 2428836 | 1937-10-29 | 327.36 |
| -35 | 2429161 | 1938-09-19 | 327.51 |
| -34 | 2429497 | 1939-08-21 | 327.36 |
| -33 | 2429817 | 1940-07-06 | 328.28 |
| -32 | 2430153 | 1941-06-07 | 329.78 |
| -31 | 2430476 | 1942-04-26 | 329.64 |
| -30 | 2430809 | 1943-03-25 | 328.72 |
| -29 | 2431140 | 1944-02-19 | 327.72 |
| -28 | 2431474 | 1945-01-18 | 327.64 |
| -27 | 2431799 | 1945-12-09 | 328.21 |
| -26 | 2432117 | 1946-10-23 | 326.93 |
| -25 | 2432441 | 1947-09-12 | 325.36 |
| -24 | 2432775 | 1948-08-11 | 325.21 |
| -23 | 2433105 | 1949-07-07 | 325.85 |
| -22 | 2433421 | 1950-05-19 | 325.92 |
| -21 | 2433748 | 1951-04-11 | 325.29 |
| -20 | 2434078 | 1952-03-06 | 324.01 |
| -19 | 2434400 | 1953-01-22 | 324.22 |
| -18 | 2434721 | 1953-12-09 | 325.14 |
| -17 | 2435049 | 1954-11-02 | 324.92 |
| -16 | 2435367 | 1955-09-16 | 325.36 |
| -15 | 2435698 | 1956-08-12 | 326.08 |
| -14 | 2436023 | 1957-07-03 | 326.29 |
| -13 | 2436352 | 1958-05-28 | 327.21 |
| -12 | 2436681 | 1959-04-22 | 326.71 |
| -11 | 2437005 | 1960-03-11 | 325 |
| -10 | 2437333 | 1961-02-02 | 324.15 |
| -9 | 2437664 | 1961-12-30 | 322 |
| -8 | 2437975 | 1962-11-06 | 321.14 |
| -7 | 2438296 | 1963-09-23 | 321.64 |
| -6 | 2438617 | 1964-08-09 | 321 |
| -5 | 2438924 | 1965-06-12 | 321.36 |
| -4 | 2439258 | 1966-05-12 | 321.86 |
| -3 | 2439583 | 1967-04-02 | 322.49 |
| -2 | 2439908 | 1968-02-21 | 323.93 |
| -1 | 2440230 | 1969-01-08 | 324.65 |
| 0 | 2440547 | 1969-11-21 | 326.08 |
| 1 | 2440881 | 1970-10-21 | 326.14 |
| 2 | 2441195 | 1971-08-31 | 326.06 |
| 3 | 2441532 | 1972-08-02 | 327.85 |
| 4 | 2441874 | 1973-07-10 | 327.79 |
| 5 | 2442183 | 1974-05-15 | 328.15 |
| 6 | 2442520 | 1975-04-17 | 328.29 |
| 7 | 2442847 | 1976-03-09 | 325.85 |
| 8 | 2443170 | 1977-01-26 | 325.5 |
| 9 | 2443500 | 1977-12-22 | 326.44 |
| 10 | 2443823 | 1978-11-10 | 325.15 |
| 11 | 2444145 | 1979-09-28 | 324.21 |
| 12 | 2444469 | 1980-08-17 | 324.14 |
| 13 | 2444804 | 1981-07-18 | 323.49 |
| 14 | 2445115 | 1982-05-25 | 323.29 |
| 15 | 2445441 | 1983-04-16 | 323.36 |
| 16 | 2445767 | 1984-03-07 | 322.29 |
| 17 | 2446085 | 1985-01-19 | 322.56 |
| 18 | 2446409 | 1985-12-09 | 324.86 |
| 19 | 2446732 | 1986-10-28 | 325.86 |
| 20 | 2447053 | 1987-09-14 | 326.58 |
| 21 | 2447382 | 1988-08-08 | 327.57 |
| 22 | 2447722 | 1989-07-14 | 328.49 |
| 23 | 2448048 | 1990-06-05 | 329.06 |
| 24 | 2448376 | 1991-04-29 | 329.29 |
| 25 | 2448704 | 1992-03-22 | 328.86 |
| 26 | 2449036 | 1993-02-17 | 327.86 |
| 27 | 2449356 | 1994-01-03 | 327.35 |
| 28 | 2449689 | 1994-12-02 | 327.64 |
| 29 | 2450019 | 1995-10-28 | 327.86 |
| 30 | 2450341 | 1996-09-14 | 328.01 |
| 31 | 2450666 | 1997-08-05 | 328.79 |
| 32 | 2451001 | 1998-07-06 | 328.5 |
| 33 | 2451329 | 1999-05-30 | 328.42 |
| 34 | 2451655 | 2000-04-20 | 328.86 |
| 35 | 2451993 | 2001-03-24 | 328.08 |
| 36 | 2452314 | 2002-02-08 | 326.86 |
| 37 | 2452644 | 2003-01-04 | 326.56 |
| 38 | 2452967 | 2003-11-23 | 325.99 |
| 39 | 2453293 | 2004-10-14 | 324.79 |
| 40 | 2453613 | 2005-08-30 | 324.01 |
| 41 | 2453943 | 2006-07-26 | 324.22 |
| 42 | 2454269 | 2007-06-17 | 325.5 |
| 43 | 2454585 | 2008-04-28 | 325.78 |
| 44 | 2454909 | 2009-03-18 | 325.07 |
| 45 | 2455241 | 2010-02-13 | 324.36 |
| 46 | 2455576 | 2011-01-14 | 325.21 |
| 47 | 2455891 | 2011-11-25 | 325.56 |
| 48 | 2456216 | 2012-10-15 | 324.14 |
| 49 | 2456537 | 2013-09-01 | 323 |
| 50 | 2456870 | 2014-07-31 | 322.51 |
| 51 | 2457182 | 2015-06-08 | 322.43 |
| 52 | 2457506 | 2016-04-27 | 322.92 |
| 53 | 2457833 | 2017-03-20 | 323.35 |
| 54 | 2458149 | 2018-01-30 | 323.64 |
| 55 | 2458472 | 2018-12-19 | 324.51 |
| 56 | 2458802 | 2019-11-14 | 324.32 |
| 57 | 2459132 | 2020-10-09 | 324.68 |
| 58 | 2459451 | 2021-08-24 | 326.93 |
| 59 | 2459780 | 2022-07-19 | 327.72 |
| 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. |